|
The Team of the Company has worked on the following
developments:
» to 2000
 General Energy Developments:
- General Configuration of 400 kV network
- General Configuration of 220 kV network
- Influence of the Features of Hydro Power Plants and Pumped Storage
Hydro Power Plants on the optimization of the modes of Electric Power
System by active power, 1982
- Sectioning capabilities of 110 kV network for 1985 stage
- Required Compensating Capacity, 1983
- Optimal Systems for power supply of the public residential sector in
Bulgaria by the year 2000, 1984
- Development of the Main Electric Power Supply Network (400 and 220
êV) of the Bulgarian Electric Power System, 1986
- Compensation of the reactive power and voltage modes, 90 - 95 stage,
1987
- Configuration of the 220 kV network, 1987
- Investigation of the operation modes of the 110 kV network in
Northern Bulgaria for 1995 - 2000, 1989
- Investigation of the capabilities for electric power transit from
USSR throughout the Bulgarian Power Systems, 1989
- Compensation of reactive loads and voltage modes in HV network.
Distribution of the loads and generating capacities in minimum mode
until 2000, 1989
- Guiding Technical Solutions for construction of 400 /110 kV and their
auxiliary 110 kV networks, 1989
- Development of Safety Quantity Evaluation Methodology and Technical -
Economic Comparison of Options of Design Solutions, 1996
- Manual for Practical Utilization of Safety Quantity Evaluation
Methodology and Technical - Economic Comparisons
- Preliminary Design Studies for implementation of Electric Power
Export from Bulgarian Electric Power System to the Turkish Electric
Power System
- Preliminary Design Studies of HV network configuration of Sofia
Region until 2000 year stage
- Preliminary Design Studies for the engineering researches of the
Diagram and Operation Modes of the Electric Power Supply System of the
"Kremikovtsi" Metallurgic Company for the first stage after
commissioning of "Metalurgichna" s/s
- Preliminary Design Studies of 110 kV Network Configuration next to
400/110 kV "Obrazcov chiflik" s/s
- Preliminary Design Studies of 110 kV network configuration next to
400/110 kV "Silistra" s/s and Interconnection of the "Silistra -
Kalarash"HPP with the Power System
- Preliminary Design Studies for Energy and Electrical Researches for
Assessment of the Configuration of the Transmission Network in Silistra
Region
- Preliminary Design Studies for Energy and Electrical Researches for
assessment of the need of construction of 400/110 kV "Dobrich" s/s
- Preliminary Design Studies of 110 kV Tie-line - "Skakavica" s/s and
"Kriva palanka" s/s
- Preliminary Design Studies of HV Network Configuration of Plovdiv -
Karlovo Region
- Interconnection of HPP from "Gorna Arda" Cascade with the Electric
Power System:
· À-1 stage: Energy and Electrical Researches
· À-4 stage: Overvoltage Protection of 110 and 20 kV
electrical devices;
· À-5 stage: Investigation of the Selection of Unit
Transformers and their Regulation Mode
- Preliminary Design Studies of 110 kV Network Configuration of the
Maritsa East complex until 2005 year stage
- Preliminary Design Studies of Technical Solutions for overcoming the
Short Circuit Currents in 110 kV Switchyard (of s/s "Maritsa East"
220/110 kV;
- Preliminary Design Studies for determination of the optimum
configuration of Transmission Lines and HV substations for electric
power
supply of "Neftohim" Burgas
- Preliminary Design Studies for Outside Electric Power Supply of
400/110/35 kV Main Security Station of "Burgas" Sea Port
- Preliminary Design Studies of 110 kV network configuration of the TDC
"South" Region
- Preliminary Design Studies for outside Electric Power Supply of new
residential consumers and industrial sites in the region of Nesebar
municipality
- "BPS" s/s - Electric Power Supply of 220 kV second 220/110 kV
transformer in NPP and 220 kV Transmission Lines for Electric Power
Transmission System;
| Substations: |
 |
350 totally new designed substations for the Bulgarian
Electric Power System, for the industry and agriculture and over 100
refurbishments of existing substations:
- 750/400/15,75êV "Varna" s/s
- 400/220/110 êV "Dobrudzha" s/s
- 400/220/110 êV"Stolnik" s/s
- 400/220/110 êV "Plovdiv" s/s
- 400/220/110 êV "Mizia" s/s
- 400/110 êV "Sofia West" s/s
- 400/110êV "Blagoevgrad" s/s
- 400/110 êV "Zlatitsa" s/s
- 400/110 êV "Burgas" s/s
- 400/110 êV "Chervena mogila" s/s
- 400/110 êV "Tsarevets" s/s
- 220/110 êV "Aleko" s/s
- 220/110 êV "Boichinovtsi" s/s
- 220/110 êV "Kazichene" s/s
- 220/110 êV "Karnobat" s/s
- 220/110 êV "Obraztsov tchiflik" s/s
- 220/110 êV "Madara" s/s
- 220/110 êV "Pleven" s/s
- 220/110 êV "Vidin" s/s
- 220/110 êV "Balkan" s/s
- 220/110 êV "Gorna Oriahovitsa" s/s
- 220/110 êV "Sofia South" s/s
- 110/20 êV "Dobritch center" s/s
- 110/20 êV "Iambol center" s/s
- 110/20 êV "Asenovgrad" s/s
- 110/20 êV "Plovdiv center" s/s
- 110/20 êV "Jumaia" s/s
- 110/20 êV "Razlog" s/s
- 110/20 êV "Kameno" s/s
- 110/20 êV "Charodeika" s/s
- 110/20 êV "Gorubliane" s/s
- 110/20 êV "Ardino" s/s
- 110 êV "Razgrad 3" s/s without transformer
- 110/10 êV "G. Dimitrov" s/s
- 110/10 êV "Geo MIlev" s/s
- 110/10 êV "Vitosha" s/s
- 110/20 êV "Studentski grad" s/s
| HV Overhead
Transmission
Lines: |
|
- 400 êV HVOHL "Dobrudzha" s/s - "Varna" s/s - "Tsarevec" s/s
- "Mizia" ("Kraicer", "Otechestvo" è "Rodina") s/s
- 400 êV HVOHL USSR - NRBulgaria ("Drujba")
- 400 êV HVOHL "Kozloduy" NPP - "Mizia" ("Iskar") s/s
- 400 êV HVOHL "Kozloduy" NPP - "Mizia" ("Pioner-Chetnik")s/s
- 400 êV HVOHL "Kozloduy" NPP - "Sofia-South" ("Petrohan")s/s
- 400 êV HVOHL "Sofia-South" s/s - "Chervena mogila" s/s
("Liulin-Rudarci")
- 400 êV HVOHL "Chervena mogila" s/s - "Blagoevgrad" s/s
("German-Osogovo")
- 400 êV HVOHL "Chervena mogila" s/s - Node "Vetren" ("Musala")
- 400 êV HVOHL Node "Vetren" - "Plovdiv-South" s/s ("Rodopi")
- 400 êV HVOHL "Plovdiv-south" s/s - "Maritsa East-3" TPP ("Hebros")
- 400 êV HVOHL "Mariza East-3" TPP - "Burgas" s/s
- 400 êV HVOHL "Dobruja" s/s - "Varna" s/s - "Burgas" s/s ("Flagmen" è
"Cherno more")
- 220 êV HVOHL "Kozlodui" NPP - "Mizia" s/s ("Borovan" è "Brenica")
- 220 êV HVOHL "Kozlodui" NPP "Boichinovci" s/s ("Hairedin")
- 220 êV HVOHL "Mizia" s/s - "Pleven" s/s ("Rostov")
- 220 êV HVOHL "Mizia" s/s - "G. Oriahovica" s/s ("Âèò")
- 220 êV HVOHL "G. Oriahovica" s/s - "Obrazcov chiflik" s/s
- 220 êV HVOHL "G. Oriahovica" s/s - "Madara" s/s ("Ticha");
- 220 êV HVOHL "Madara" s/s - "Dobrudzha" s/s ("Kolarov" è "Volov")
- 220 êV HVOHL "G. Oriahovica" s/s - "Maritsa East-2" TPP ("Stara
planina -Hemus")
- 220 êV HVOHL "Maritsa East -2" TPP - "Maritsa East -3" TPP
("Ovcharica")
- 220 êV HVOHL "Maritsa East -3" TPP - "Maritsa East" s/s
("Mednikarovo")
- 220 êV HVOHL "Maritsa East -3" TPP - "Uzundzhovo" s/s
("Konstantinovo")
- 220 êV HVOHL "Maritsa East" s/s - "Plovdiv-South" s/s ("Rumelia" è
"Trakia")
- HVOHL 220 êV "Plovdiv" s/s - "Aleko" s/s ("Parvenec")
- 220 êV HVOHL "Aleko" s/s - "Balkan" s/s - "G. Oriahovica" s/s
("Shipka" and "Iantra")
- 220 êV HVOHL "Aleko" s/s - "Kazichene" s/s (""Benkovski-Oborishte")
- 220 êV HVOHL "HPP "Belmeken" s/s - "Kazichene" ("Rila") s/s
- 220 êV HVOHL "Bobov dol" TPP - "Sofia-South" s/s - "Kazichene" s/s
("Vitosha-Verila" and "Darvenica-Pancharevo")
- 220 êV HVOHL "Bobov dol" TPP - "Stolnik" s/s ("Studena-Struma")
- 110 êV HVOHL "Studen kladenec" HPP - "Kurdzhali" ("Perperek") s/s
- 110 êV HVOHL "Student kladenets" HPP - "Maritsa East" s/s
("Malevo-Piasachevo-Slavianovo")
- 110 êV s/s HVOHL "Shoumen" - "Razgrad" s/s ("Beli Lom")
- 110 êV HVOHL "Maritsa East" s/s - "Elhovo" s/s ("Sakar")
- 110 êV HVOHL "Elhovo" s/s - "Bosna" s/s ("Bliznak")
- 110 êV HVOHL "Dobrudzha" s/s - "Tolbuhin" s/s ("Botevo")
- 110 êV HVOHL "Pleven-1" s/s - "Guliantsi" s/s ("Podem")
- 110 êV HVOHL "G. Oriahovitsa" s/s - "Obraztsov chiflik" s/s
("Butan-Klimentovo-Orlovets-Manastiritsa-Kulata")
- 110 êV HVOHL "G. Oriahovitsa" s/s - "Popovo" s/s ("Pravda-Kaleto")
- 110 êV HVOHL "Dobrudzha" s/s - "Alfatar" s/s ("Orliak-Dolina-Bezmer")
- 110 êV HVOHL "Mihailovgrad" s/s - "Martinovo" s/s ("Mak")
- 110 êV HVOHL "Republika" TPP - Strezimirovtsi ("Burdo-Erma")
- 110 êV HVOHL "Popovo" s/s - "Turgovishte" s/s ("Rosina")
- 110 êV HVOHL "Ivailovgrad" HPP - Elhovo" s/s
("Ivailovo-Granichar-Vishegrad")
- 110 êV HVOHL "Maritsa-3" TPP - "Chirpan" s/s ("Kracholov")
- 110 êV HVOHL "Simitli" s/s - "Sandanski" s/s ("Granit-Orbel")
- 110 êV HVOHL "Bobov Dol" TPP - "Kiustendil-2" s/s ("Kadin most")
- 110 êV HVOHL "Dulovo" s/s - "Silistra" s/s ("Dorostol")
- 110 êV HVOHL "Kozloduy" NPP - "Stanevo" s/s ("Asparuhov Val")
as well as some other HVOHL for the Bulgarian Electric Power System
| ATES |
|
- Design of Automatic Dispatching Control Systems for 400 êV
substations - " 400/110 êV "Blagoevgrad s/s, 400/110 êV "Chervena
Mogila" s/s, 400/110 êV "Sofia-south" s/s, 400/110 êV "Stolnik" s/s,
400/220/110 êV "Mizia" s/s, 400/110 êV "Tsarevec" s/s, 400/220/110 êV
"Dobrudzha" s/s, 400/110 êV "Burgas" s/s, 400/220/110 êV "Plovdiv" s/s,
400/110 êV "Zlatitsa" s/s
- Design of Automatic Dispatching Control Systems for 220 êV objects -
220/110 êV "Kazichene" s/s, 220/110 êV "Sofia South" s/s, 220/110 êV
"Uzundzhovo" s/s, 220/110 êV "Madara" s/s, 220/110 êV "Boichinovci"
s/s, 220/110 êV "Gorna Oriahohica" s/s, 220/110 êV "Balkan" s/s,
220/110 êV "Chudomir" s/s, 220/110 êV "Aleko" s/s
- Design of Automatic Dispatching Control Systems (ADCS) of 750/400 êV
"Varna" s/s
- Design of the technological part of NDC for Power System Control
- Design of the technological part of TDC West, TDC East, TDC North è
TDC South
- Radio Relay Lines for the National Electric Company (NEC)
- Investigation of the Telecommunication Traffic of the Power Sector
and prospects for its development by 2010
- Preparation of tender documents for delivery of PLC, for Energy 1
project, financed by the World Bank
- Preparation of tender documents for delivery of Electric Measuring
transducers, under Energy 1 project, financed by the World Bank
- Preparing of tender documents for delivery of TELEGYR system
distension under the Energy 1 Project, financed by the World Bank
- Preparation of PLC projects, delivered by ALCATEL, under Energy 1
project, financed by the World Bank
- Preparation of projects for extension of the existing TELEGYR system,
under Energy 1 project, financed by the World Bank
- Preparation of projects for measuring transducers, delivered by
Schlumberger, under Energy 1 project, financed by the World Bank
- Design of PLC for the tie-lines between Bulgaria and Romania, Russia
and Moldova
- Investigation of the capabilities for interconnection of ripple
control for NEK -EAD
- Design of Troubleshooting Automatic for the Bulgarian Electric Power
System
- Execution of installation works for implementation of the telemetry
system in "Maritsa East coal Mines" as follows:
· CRB s/s
· Gipsovo s/s
· 3 March s/s
· Gledachevo s/s
· First s/s
· Second s/s
· Third s/s
· Forth s/s
· Fifth s/s
· Sixth s/s
· Seventh s/s
· Eighth s/s
- Connection between SCADA system of the local DC of "Maritsa East Coal
Mines" and the SCADA system of territorial DC South
| Urban networks: |
|
- Electric Power Supply of the following towns:Pernik,
Kyustendil, Sozopol, Blagoevgrad, Balchik, Nesebar municipality etc
- Electric Power supply of Metropolitan
- Outside Electric Power Supply of Hilton Hotel, medium voltage of
"Gorna Arda" HPP etc.
- 110 kV Cable lines in Sofia, Varna, Haskovo
- Medium voltage cable lines in Dupnitsa, Rousse, Haskovo
| Civil Construction
Group: |
|
- New-Designed and Refurbished Substations and Electric Power
Systems as well as inspections and reinforcement of the seismic
stability of the buildings in existing substations and partition walls
in Switchgear, as follows:
·
400/110 kV "Sofia west" s/s
· 110/20 kV "Elin Pelin" s/s
· 110/20 kV "Druster" s/s
· 110/20 kV "Pazardjik" s/s
· 400/220/31,5 kV "Stolnik" s/s
· 110/20 kV "Stanke Dimitrov" s/s
· 110/20 kV "Samokov" s/s
· 110/20 kV "Uzunjovo" s/s
· 110/20 kV "Dimitrovgrad" s/s
· 110/20 kV "Haskovo-I" s/s
· 110/20 kV "Haskovo-II" s/s
· 110/20 kV "Liubimetz" s/s
· 110/20 kV "Haskovo-III" s/s
· 110/20 kV "Pazarjik - East" s/s
· 110/20 kV "Orlandovtzi" s/s
· 110/20 kV "Asenovgrad I" s/s
· "Maritza East" s/s
· 110/20 kV "Septemvriitzi" s/s
· 110/20/6,3 kV "Novi Krichim"s/s
· 110/21/6,3 kV "Piasachnik" s/s
· 110/20 kV "Petrich" s/s
· 110/20 kV "Iakoruda" s/s
· 110/20 kV "Breznik" s/s
· 110/20 kV "Kostinbrod" s/s
· 110/20 kV "Obrazcov Tchiflik" s/s
· 110/20 kV "Vetren" s/s |
·
110/20 kV "Balchik" s/s
· 110/20 kV "Velingrad" s/s
· 400/110 kV "Plovdiv-south" s/s
· 400/110 kV "Blagoevgrad"s/s
· 110/20 kV "Razlog"s/s
· 110/20 kV "Sandanski" s/s
· 110/20 kV "Shabla" s/s
· 110/20 kV "Kavarna"s/s
· 110/20 kV "Perun" s/s
· 110/20 kV "Iambol I"s/s
· 110/20 kV "Dzumaia "s/s
· 110/20 kV "Chirpan" s/s
· 110/20 kV "Favorit" s/s
· 110/20 kV "Krushari" s/s
· 110/20 kV "Dobrich" s/s
· 110/20 kV "Tervel" s/s
· 110/20 kV "Gen. Toshevo" s/s
· 110/20 kV "Nona" s/s
· 110/20 kV "Dimitrovgrad" s/s
· 110/20 kV "Nikola Kolev" s/s
· 110/20 kV "Kula" s/s
· 110/20 kV "Cherni vrah" s/s;
· 110/20 kV "Kabile" s/s
· 110/20 kV "Svishtov" s/s
· "Provadia" s/s
· MV connection Stations - "Belene", "Iadenica",
"Sungurlare" |
» 2001
| General Energy
Developments: |
|
- Energy and Electrical Researches for the interconnection of
110/20êV "Deliankite" s/s
- Energy and Electrical Researches for the interconnection of 110/20êV "Proslav"
s/s
- Energy and Electrical Researches for the interconnection of 110/20êV "Pomorie"
s/s
- Energy and Electrical Researches for the interconnection of 110/20êV "Sozopol"
s/s
| Substations: |
|
-- 110/20êV"Deliankite" s/s with 110êV OHL- Re-design
of 110êV Switchyard and 20êV switchgear transformation from two block
line - transformer diagram to "a single section bus - bar system":
· 110êV Switchyard- Primary and Secondary Commutations
· Relay protection
· 20êV Switchgear - Primary and Secondary Commutation and
Relay Protection
· Diesel - generator - mechanical- technological part,
electrical and I&C part
· Vertical planning, Lay out with a fuel drainage channel
- "Ardino" s/s - Organization and construction performance
program
- "Haskovo-center" s/s - Organization and construction
performance program
- Electrical part for construction of basic stations for second GSM
operator
| HV Overhead
Transmission
Lines: |
|
- 400êV HVOHL "Hebros"
- Replacement of Lightning Protection Conductor Ñ-70 by Fiber Optic
Cable of OPGW type
· Tracing and Preparation of Longitudinal profiles
of the Routes
· Electrical and mechanical calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 400êV HVOHL "Mudrets" -
Replacement of the Lightning Protection Conductor Ñ-70 with fiber optic
cable of OPGW type
· Tracing and Preparation of Longitudinal Profiles
of the Routes
· El. Mechanical Calculations
· Technical conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductor
- 400êV HVOHL "Liulin-Rudartsi"
- Replacement of Lightning Protection Conductor Ñ-70 with Fiber Optic
Cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· El. Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 400êV HVOHL "Serdika" -
Replacement of the Lightning Protection Conductor Ñ-70 with fiber optic
cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 400êV HVOHL "Botunets" -
Replacement of Lightning Protection Conductor Ñ-70 by fiber optic cable
of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· El. Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 220êV HVOHL "Elin Pelin -Bailovo"
- Replacement of the Lightning Protection conductor Ñ-70 by Fiber Optic
Cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- HVOHL 220êV "Malashevtsi" -
Replacement of Lightning Protection Conductor Ñ-70 by fiber optic cable
of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for Dimensioning of Optical
Cables and Lightning Protection Conductors
- 110êV HVOHL "Student Kladenets" HPP
-"Krumovgrad" s/s - Refurbishment of the Tower Span-lengths ¹
34-35 and ¹ 35-36
- 110êV HVOHL"Kameno" s/s -"Neftohim" TPP - the part from"Kameno" s/s
to tower 9À
| ATES |
|
- Design of SCADA system for 110
kV substations
- Design of SCADA system for Chaira"
Pumped
Storage HPP"
- Design of Automatic Telephone Network for NDC, TDC and RDC
- Ultrashort Wave Radio Network of NEK
- Turnkey implementation of SCADA systems for Gorna Oriahovica RDC
- Turnkey implementation of SCADA systems for Kyustendil RDC
- Turnkey implementation of SCADA systems for Maritsa East RDC
- Turnkey implementation of the spare measurement system of the
intersystem HVOHL for the following objects:
· "Blagoevgrad
400êV" s/s
· "Sofia west
400êV" s/s
· "Dobruja 400êV"
s/s
· "Varna" s/s
· "Kozloduy" NPP
| Urban networks: |
|
- Preliminary Design Studies for 110 kV cable line for 110/20êV "Haskovo center " s/s
- Detailed Design for 110êV cable line from"Haskovo ²²²" s/s to "Haskovo center" s/s
- Detailed Design for cable 110êV line from"Haskovo ²²" s/s to "Haskovo center" s/s
- Detailed Design for 20êV cable line from 110/20êV "Haskovo center" s/s with
auxiliary collector and channel networks
- Preliminary Design Studies for removal of "Vitosha" s/s
- 110/20êV "Deliankite" s/s -
investigation of the technical condition of 20êV network in the region
- 110/20êV "Proslav" s/s -
investigation of the technical condition of 20êV network in the region
- 110/20êV "Sozopol" s/s -
investigation of the technical condition of 20êV network in the region
- 110/20êV "Pomorie" s/s -
investigation of the technical condition of 20êV network in the region
| Civil Construction
Group: |
|
- 110/20êV Ardino"- S/s
new substation Switchyard and Switchgear
- 110/20êV"Haskovo 3" s/s -
Refurbishment
- 110/20êV "Haskovo-center s/s" -
new 110êV Switchgear
- 110/20êV"Kostinbrod" s/s -
Refurbishment
- 110/20êV s/s"Sandanski" -
Switchgear with a Control Building - Reinforcement
- 110/20êV "Petrich"s/s -
Switchgear with a Control Building - Reinforcement
- 110/20êV"Dimitrovgrad" s/s -
refurbishment of the 110êV Switchyard
» 2002
| General Energy
Developments: |
|
- Energy and Electrical Researches for the interconnection of
HPP from "Gorna Arda" Cascade with the Bulgarian Electric Power
System - General Report
- Energy and Electrical Researches for the interconnection of "Tsankov
kamak" HPP with the Bulgarian Electric Power System
- "Ogosta" HPP - Interconnection with the Electric Power System
- Single Line Diagram
| Substations: |
|
- 400êV"Plovdiv" s/s capabilities for refurbishment of
400 kV switchyard under breaker and a half diagram with the following
changes in 220êV è 110êV switchyards - extension and refurbishment of
400 kV Switchyards:
· Primary Commutation
· Secondary Commutation
· Relay Protection with Automation and Telemetry
· Construction
- 400êV"Plovdiv" s/s - capabilities for refurbishment of 400 kV
switchyard by breaker and a half diagram with following changes in
220êV è 110êV switchyards - extension and refurbishment of the 220 kV
Switchyard:
· Primary Commutation
· Secondary Commutation
· Relay Protection with Automation and Telemetry
· Construction
- 400êV"Plovdiv" s/s - capabilities for refurbishment of 400
kV switchyard under breaker and a half diagram with the following
changes in 220êV and 110êV Switchyards - new 31,5êV Switchgear
· Primary and Secondary Commutations and Relay
Protections
· Civil and Architectural part
- 220/110êV"Maritsa East" s/s, Galabovo - Extension and
refurbishment by 400 kV interconnection, Extension and refurbishment of
220êV, 110êV and Medium Voltage Switchyards - temporary equipment of
two feeders of 220 êV
· Relay Protection with Automation and Telemetry
· Construction
- 220/110êV"Maritsa East" s/s, Galabovo - Extension and
refurbishment by 400 kV interconnection, Extension and refurbishment of
220êV, 110êV and Medium Voltage Switchyards - refurbishment of 220 kV
Switchyard:
· Primary and Secondary Commutations
· Relay Protection with Automation and Telemetry
· Construction
· Vertical planning, roads and fence
- 220/110êV "Maritsa East" s/s, Galabovo - Extension and
refurbishment by 400 kV interconnection, 220êV, 110êV and medium
voltage switchyards Extension and refurbishment - refurbishment of 110
kV switchyard
· Primary and secondary commutations
· Relay Protection with Automation and Telemetry
· Construction
· Vertical planning, roads and fence
- "Maritsa East" s/s220/110êV, Galabovo - Extension and
refurbishment by 400 kV interconnection, 220êV, 110êV and medium
voltage switchyards Extension and refurbishment:
· Medium voltage SWITCHGEAR with a 20 kV metal clad
switchgear;
· Medium voltage SWITCHGEAR with a 10 kV metal clad
switchgear
- "Maritsa East" s/s
220/110êV, Galabovo - Extension and refurbishment by 400 kV
interconnection, 220êV, 110êV and medium voltage switchyards Extension
and refurbishment
· Garages - Architectural Part, Civil Construction
Part, Lighting
- 220/110êV "Maritsa East" s/s, Galabovo - Extension and
refurbishment by 400 kV interconnection, Extension and refurbishment of
220êV, 110êV and medium voltage switchyards:
· Geodetic survey beyond 220êV and 110êV Switchyard
aiming to drain the sites.
- 110êV Substations -
preparation of technical requirements for selection of accumulator
battery
· Loads Determination
· Connection Diagrams
· Selection Methodology
- "Alfatar s/s ", 110êV Switchyard - Replacement of the
portals, sectioning of the bus-bar system and displacement of the surge
arrester field - Primary and Secondary Commutations
- 110/20êV"Gorna Oriahovitsa s/s - East"- Earthing installation
in 110êV Switchyard and next to the Switchgear, upgrade of lightning
protection installation
- 110/20êV"Svishtov" s/s - Earthing installation in 110êV
Switchyard and next to the Switchgear, upgrade of the lightning
protection installation
- 110/20êV"Strazhitsa" s/s - Earthing installation in 110êV
Switchyard and around Switchgear, upgrade of the lightning protection
installation
- 110/20êV "Gabrovo" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/20êV"Polski Trambesh" s/s - Earthing installation in
110êV Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 220/110êV"Gorna Oriahovitsa" s/s - Earthing installation in
the 220 and110êV SWITCHYARD, control room and around the medium voltage
SWITCHGEAR, upgrade of the lightning protection installation
- 110/20êV"Triavna" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/20êV"Drianovo" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/20êV "Elena" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/20êV"Pavlikeni" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/20êV "Sevlievo" s/s - Earthing installation in 110êV
Switchyard and around the Switchgear, upgrade of the lightning
protection installation
- 110/10êV"Rila" s/s -replacement of 110êV circuit breaker
HPGE 11/15 E type by circuit breaker of ÇÀÐ 1-FG, 123êV type of the
Transformer 2:
· Primary and Secondary Commutations,
Civil-Construction Part
- Cherni vrah" s/s - Replacement of Disconnectors in the
Switchyard:
· Primary and Secondary Commutations, Civil and
Construction part
- "Asenovgrad" s/s - Refurbishment of the Earthing Loop
- 400êV"Plovdiv" s/s - Secondary Commutation:
· Acceleration of Relay Protections of 110 kV feeders
- "Asenovgrad ²²" s/s - Secondary Commutation:
· Acceleration of the Relay Protections of 110 kV feeders;
- "Kubratovo" Treatment Station - Replacement of Disconnectors
in 110êV Switchyard
- "Kardzhali" HPP - 110êV Switchyard - Executive Documentation
for the Secondary Commutation: evolved and assembly drawings and
auxiliary drawings
- 110/20êV "Bobov dol" s/s-
110êV Switchyard - Oil Drainage Channel and Tanks under the Transformers
- 110êV "Razgrad ²²²" Node -
Determination and Correction of the longitudinal and the cross profiles
of the site
- "Kardzhali" ²" s/s - 110êV Switchyard - Determination of
location of the surge arrester and inspections of the devices
- "Kardzhali ²" s/s - Refurbishment of the Relay and
Differential Protection of the Power Transformers
| HV Overhead
Transmission
Lines: |
|
- 400êV HVOHL "Cherno more"
- Replacement of the Lightning Protection Conductor Ñ-70 by Fiber Optic
Cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 400êV HVOHL "German-Osogovo"
- Replacement of the Lightning Protection Conductor Ñ-70 by fiber optic
cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors
- 110êV HVOHL "Bodrost" -
Replacement of the lightning protection conductor Ñ-70 by fiber optic
cable of OPGW type
· Tracing and Longitudinal Profiles of the Routes
· Electrical and Mechanical Calculations
· Technical Conditions for the Dimensioning of
Optical Cables and Lightning Protection Conductors.
- 220 êV HVOHL for Outside
Electric Power Supply of the Coast Pump Station-4
- 110 êV HVOHL for Outsidel
Electric Power Supply of the Coast Pump Station -4
- 220êV HVOHL "Rostov" -
Refurbishment between ¹ 2-3
- 110êV HVOHL "Baba Vida" (from
tower. ¹ 14 to. ¹ 51) - Refurbishment of HVOHL in the lands of Slana
bara, Bela rada, Bukovets and Voinica villages, Vidin municipality
- 110êV HVOHL "Chaia" in front
of"Asenovgrad ²" s/s - Dimensioning and Construction of Prismatic
Extension of Tower ¹ 2, 13 ÚÒ 600 - 400 type
- 110êV HVOHL "Chavdarysai" -
Rehabilitation of HVOHL
- 110êV HVOHL "Maritsa-East" s/s
-"Harmanli" s/s - Reinforcement of the Towers
- 220êV HVOHL" Maritsa-East" s/s
-"Plovdiv-South" s/s ("Trakia") - Refurbishment of the Tower
Span-lengths ¹ 94-95
- 110êV HVOHL for110/20êV"Deliankite"
s/s with 110êV HVOHL:
· HVOHL 110êV - Refurbishment and Interconnection
with"Deliankite" s/s
· 110êV HVOHL "Malak Preslavetz" s/s- "Deliankite"
s/s
· 110êV HVOHL "Tutrakan" s/s- "Malak Preslavets" s/s
- completion works and repairs
- Preliminary Design Studies for 20êV HVOHL of 110/20êV "Deliankite" s/s
- Detailed Design for 20êV HVOHL of 110/20êV
"Deliankite" s/s
- HVOHL 20êV and low voltage -
Refurbishment and Displacement of the bed of the "Madan" Dam Lake
- Interconnection of 110/20êV
"Proslav" s/s with the Electric Power System:
· 110êV HVOHL
"Proslav" s/s -"Hristo Smirnenski" s/s
· 10êV HVOHL 1 "Proslav"
s/s-"Novi Krichim" s/s
· 110êV HVOHL "Proslav
"s/s-"Plovdiv-South" s/s
· 110êV HVOHL "Proslav"
s/s-"Plovdiv" TPP
- 400êV HVOHL "Maritsa-East 3" TPP
-"Alibeikioi" s/s (Turkey) on the territory of Bulgaria -
arrangement of the site of tower ¹ 132
- 400êV HVOHL "Maritsa-East 3" TPP -"
Alibeikioi" s/s (Turkey) on the territory of Bulgaria -
Executive Design
- 110êV HVOHL for interconnection of new HPP from "Gorna Arda" Cascade - crossing the
roads of the national road network on the territory of Road control -
Kardzhali
- 20êV HVOHL for back-up medium
voltage power supply of "Bial Izvor HPP - crossing the roads of
the national road net on the territory of Road control - Kardzhali
- 110êV HVOHL"North Rodopi" s/s
-"Davidkovo" s/s -section from "North Rodopi" s/s to tower ¹51
- 110êV HVOHL "Topola-Razvigor"
- displacement of the OHL from the site of new s/s"Razgrad 3"
| ATES |
|
- Design of SCADA system for the electric power facilities,
controlled
by "Martsa East" RDC -
Extension of SCADA system with a periphery post for "Obruchishte" s/s
- Design of SCADA system for the power facilities, controlled by "Martsa East" RDC - Extension of
SCADA system with a periphery post for "Beli
briag" s/s
- Execution of installation works forf implementation of the "Telegyr" system on the following
energy sites:
· Bononia s/s
· Zlatica s/s
· Petrich s/s
- 110/20êV "Deliankite" s/s
with 110êV HVOHL - Telemetry and Dispatching Telephone Connections
- Interconnection of 110/20êV
"Proslav" s/s with the Electric Power System - telemetry and
dispatch telephone connections
- Interconnection of 110/20êV"Pomorie"
s/s with the ElectricPower System - Telemetry and Dispatching
Telephone Connections
- Interconnection of 110/20êV"Sozopol"
s/s with the Electric Power System - Telemetry and Dispatching
Telephone Connections
- 400êV" Plovdiv" s/s -
Refurbishment capabilities of 400 kV Switchyard by a breaker and a half
diagram with its following changes in 220êV è 110êV Switchyards:
· Extension and Refurbishment of 400 kV switchyard - Automation and Telemetry
· Extension and Refurbishment of the 400 kV Switchyard PLC Dispatching
Connections
| Urban networks: |
|
- Survey of the routes for optical cables in Sofia as follows:
· "Rila" s/s - NDC
· "Krasno selo" s/s
- NDC
· "Rila" s/s -
NEK-EAD. - High Voltage Network Company"
· Sofia TPP - NDC
· "Moderno
pregradie" s/s- NDC
· "Krasno selo"
s/s - NEK EAD - "High Voltage Network" Company
- Detailed design for 20êV cable lines for 110/20êV "Proslav" s/s
- Detailed Design for 20êV cable lines for 110/20êV"Sozopol" s/s
| Civil Construction
Group: |
|
- 110/10êV"Zora" s/s-
Building of 10êV Switchgear - seismic reinforcement
- 110êV "Razgrad 3" Junction -
110êV Switchyard:
· Axonometry and Situation
· Portal and Tables with Fundaments
· Vertical Planning, Roads and Water Supply and
Sewage System
- 110êV "Alfatar" Switchyard s/s
- change of portals, bus-bar system sectioning and replacement of the
surge arrester field, civil construction part - axonometry, situation,
tables and calculations
- 110êV "Bobov dol" Switchyard s/s
- portals and fundaments of the bus-bar system - axonometry, situation,
devices' tables and calculations
- "Maritsa 3 Dimitrovgrad" TPP -
110êV Switchyard - reinforcement of the portal constructions:
· Inspection of the bearing capacity of the weaken
sections with a constructive solution
· Reinforcement of the steel parts and fundaments
and calculations
- 110/20êV "Belovo" s/s -
reinforcement and replacement of the reinforced concrete portals in the
110êV Switchyard: axonometry, columns, beams, fundaments and
calculations
- 110êV "Asenovgrad" Switchyard s/s
- Replacement of the concrete beams and portals: axonometry, columns,
beams, basements and calculations
- 110/20êV"Kameno"s/s -
reinforcement of the collapsed partition walls in operating Switchgear
- 110/10êV"Rila" s/s -
Replacement of 110êV breaker of HPGE 11/15 E type with ÇÀÐ 1-FG, 123êV
type of the Transformer 2 - Architectural and Civil Part
- "Cherni vrah" s/s -
Replacement of Disconnectors in 110êV Switchyard - constructive part
- 110/20êV "Deliankite" s/s
with 110êV HVOHL
· 110êV: Switchyard axonometry and situation,
portals, tables
· Vertical planning and Water Supply and Sewage
System
· Control and Technological Buildings -
Architectureal and Civil part
· Emergency storage - architecture and civil part
- 400êV "Plovdiv" s/s -
Refurbishment capabilities of 400 kV Switchyard by a breaker and a half
diagram with its following changes in 220êV and 110êV Switchyards -
extension and refurbishment of 400êV Switchyard:
· Axonometry, situation, portals, devices' tables
and basements
· Vertical Planning, Roads and Water Supply and
Sewage System
- 400êV "Plovdiv" S/s -
Refurbishment opportunities of 400 kV Switchyard by a breaker and a
half diagram with its following changes in 220êV and 110êV switchyards
-new 31,5êV Switchgear and 31,5êV Switchyard:
· Architectural part
· Construction part
- 110êV "Razgrad ²²²" Junction- 110êV
Switchyard - Inspection and changes in the constructions based
on the new geological conditions
- "Kardzhali ²" S/s - 110êV Switchyard
- Reinforcement and Inspections of the tables and systems
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and Medium Voltage
Switchyards - temporary equipment of two 220 êV feeders:
· Civil Construction Part
» 2003
| General Energy
Developments: |
|
- Scientific Researches of 110/20êV "Burgas - industry"
s/s - refurbishment of 110êV Switchyard and selection of configuration
of the digital relay protections system, automation and telemetry:
· Protection of 110êV Electrical Facilities -
coordination of the insulation
· Selection and Configuration of the Digital Relay
Protection System- Secondary Commutation Part and Telemetry
· Inspection of the equipment and current
distribution of 110 kV bus - bars
- Scientific researches of 220/110/20êV "Gorna Oriahovitsa" s/s
- refurbishment of 110êV Switchyard and replacement of the portals:
· Construction condition and Assessment
· Assessment of the capability of 110êV by-pass bus
- bar to cover all auxiliary interconnections
· Inspection of the facilities and current
distribution of 110 kV bus - bars
| Substations: |
|
- 220/110êV "Maritsa East"
s/s, Galabovo - Extension and Refurbishment by 400 kV
interconnection, Extension and Refurbishment of 220kV, 110êV and Medium
Voltage Switchyards - new 400 kV Switchyard:
· Primary and Secondary Commutations
· Relay Protection with Automation and Telemetry
· Civil Construction Part
· Vertical planning, Water Supply and Sewage System,
Roads and Fence
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220kV, 110êV and Medium Voltage
Switchyards - reconstruction 220 kV Switchyard:
· Primary and Secondary Commutations
· Relay Protection with Automation and Telemetry
· Civil Construction Part
· Vertical planning, Water Supply and Sewage System,
Roads and Fence
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/220êV Transformer:
· Primary and Secondary Commutations with Relay
Protection
· Civil Construction Part - Building of 31,5êV
Switchgear
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
Extension and Refurbishment:of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/110êV Transformer:
· Primary and Secondary Commutations with Relay
Protection
· Constructional part - building of 31,5êV Switchgear
- "Maritsa East" s/s220/110êV,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220êV, 110êV and Medium Voltage
Switchyards
· Control- Production Building - Architectural part,
Civil Construction part, Electrical Installations, Heating,
Ventilation, Air Conditioning
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
220êV, Extension and refurbishment of 110êV and medium voltage
switchyards
· Security Guard Equipment - Control - production
buildings, 400êV Switchyard, 220êV Switchyard and 110êV Switchyard
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and Medium Voltage
Switchyards:
· Fire protection pump station
· Fire alarm - Control - production buildings
· Fire extinguishing - Control - production buildings
· Fire extinguishing installation in the cable
premises
· Dry pipe fire extinguish installation of the
transformers
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment:of 220êV, 110êV and medium voltage
switchyards
· Oil collection drainage channel from the beds of
the transformers
· Oil collection tank and water tank for fire
extinguishing
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and medium voltage
switchyards:
· Nitrogen fire extinguishing of 400/220êV and
400/110êV Power Transformers
- Interconnection of 110/20êV
"Proslav" s/s with the Electric Power System:
· 110êV Switchyard - Primary and Secondary
Commutations, Lighting
· Control - technological building - Architectural
Part, Lighting and Electrical Installation
· Technological - Production Building -
Architectural Part, lighting and electrical installation
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and
medium voltage switchyards:
· 110êV Switchyard - Vertical planning, Water Supply
and Sewage System, Roads and Draining
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and medium voltage
switchyards:
· 220êV Switchyard - Vertical planning, Water Supply
and Sewage System, Roads and Draining
- 110/20kV "Bourgas industria" s/s
- extension and refurbishment by 110kV switchyard and choosing
configuration of a system for digital relay protection, automation and
telemetry
· 110kV switchyard - primary commutation, Lighting
and Electrical Installation, roads and fence
- 110/20/10kV "Festivalna" s/s
- reconstruction of switchgear
- 110/20/10kV "Festivalna" s/s
- replacing disconnectors for switchyard 110kV, primary and secondary
commutations
- 110/10kV "Georgi Dimitrov" s/s
- replacing disconnectors and breakers for switchgear 110kV, primary
and secondary commutations
- 220/110/20/10kV "Balkan" s/s
· Reconstruction of earthing installation of
switchyard 220kV, switchyard 110kV, and around switchgear
· Lights protection installation for 110kV and 220kV
power devices, command center and switchgear
| HV Overhead
Transmission
Lines: |
|
- 110êV HVOHL "Izgrev" -
service and refurbishment
- 400êV HVOHL "Djerman - Osogovo" -
replacing in the region of "Kamenik"
- 110êV HVOHL "Popica" -
refurbishment
- 110êV HVOHL "Burgas Industra" -
reconstruction
- 110êV HVOHL "Severni
Rododpi"-"Davidkovo" from the site of "Severni Rododpi" s/s to
tower 51 - technical consultation
- 400êV HVOHL "Sakar"- "Maritsa East
-3" TPP-Alibaykyoy(Turkey) - correction of tower No99 to 112
- 110êV HVOHL "Ignatievo" - "Plovdiv"
TPP - "Chernozem" - tower No5 to 30
- 400êV HVOHL "Hebros"- "Maritsa East
-3" TPP-"Plovdiv"s/s - switchgear 110kV reconstruction in front
of "Plovdiv" s/s
- 110êV HVOHL - traces for
"Proslav" s/s
- 400êV HVOHL "Chervena mogila" s/s -
"Dubrovo" s/s - reconstruction of towers No 31 to 37
- "Kameno" s/s - technical
consultation
- 110kV HVOHL "Manastir" - "Severni
Rodopi"- "Davidkovo" - joining
- 110kV HVOHL "Manastir" - "Severni
Rodopi"- "Davidkovo" - stabilizing of towers -18 pcs
- 110kV HVOHL "Manastir" - "Severni
Rodopi"- "Davidkovo" - stabilizing of towers - 20 pcs
- 110êV HVOHL "Rila 1" s/s - "Rila 2"
s/s - towers No 15 to 22
- 110êV HVOHL to "Kameno" s/s
- technical consultation
- 110êV HVOHL "Podem" -
actuality working design
| Urban
networks: |
|
- 110/20/10kV "Festivalna"
s/s - reconstruction of cable terminals
- "Haskovo II" s/s -
reconstruction of cable lines - replacing
- Choosing optical fibres for NEK dispatchers connections
| ATES:
|
|
- 220/110êV "Maritsa East"
s/s, Galabovo - Extension and Refurbishment by 400 kV
interconnection, 220êV, 110êV and Extension and refurbishment medium
voltage Switchyards:
· Telemetry - 400êV Switchyard
· Telemetry- 220êV Switchyard
· Telemetry - 110êV Switchyard
· Dispatching telephone connections
· Devices for connection by the lightning protection
conductor with built in fiber optics
- Scientific research at 110/20kV
"Burgas Industria" s/s - Refurbishment
of switchyard 110kV and choosing configuration of a system for digital
relay protection, automation and telemetry:
· SCADA
· Dispatchers' telephone connections
| Civil Construction
Group: |
|
- Interconnection of 110/20êV"
Proslav" s/s with the Electrical Power System:
· Control and Technological Buildings - Architecture
and Construction Part
· Technological - Production Building - Architecture
and Construction Part
- 400êV "Plovdiv" S/s -
Refurbishment Capabilities of 400 kV Switchyard by a breaker and a half
diagram with its following changes in 220êV è 110êV Switchyards -
Extension and refurbishment of 220êV Switchyard:
· Axonometry, situation, portals, tables and
foundations
· Vertical planning, roads and Water Supply and
Sewage
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment 220êV, 110êV and Medium Voltage Switchyards
- New 400êV Switchyard - Construction Part:
· Axonometry, situation, portals, devices' tables
and basements
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
220êV, 110êV and Extension and refurbishment:of Medium Voltage
Switchyards - Refurbishment of 220êV switchyard - Civil Construction
Part:
· Axonometry, Situation, Portals, Tables and
Foundations
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment: of 220êV, 110êV and Medium Voltage
Switchyards - Refurbishment of 110êV Switchyard - Construction Part:
· Axonometry, situation, portals, devices' tables
and basements
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220êV, 110êV and Medium Voltage
Switchyards:
· Switchgear with Medium Voltage 20êV Switchgear-
Architecture, Civil Construction part
· Switchgear with Medium Voltage 10êV Switchgear:
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
Extension and Refurbishment:of 220êV,110êV and medium voltage
Switchyards
· Garages - Architecture, Civil and Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment:of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/220êV transformer:
· Building of 31,5êV Switchgear with 31,5êV
Switchyard - Architecture and Civil Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/110êV transformer:
· Building of 31,5êV Switchgear with 31,5êV
Switchyard - Architecture and Civil Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220êV, 110êV and medium voltage
switchyards - Control and production building:
· Architecture;
· Construction part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment:of 220êV, 110êV and medium voltage
switchyards - Technological - production building:
· Architecture;
· Civil and Construction Part
- Scientific researches of 220/110/20êV"Gorna
Oriahovica" s/s - Refurbishment of 110êV Switchyard and
replacement of the portals:
· Condition and Assessment of Civil Ñonstructions
- Scientific researches of 110/20êV"Burgas
- industry" s/s - Refurbishment of 110êV Switchyard and
Selection of System Configuration for Digital Relay Protection,
Automation and Telemetry:
· Ñonstruction Condition and assessments
- 110/20/10êV "Festivalna" s/s -
Reconstruction of switchgear
- Interconnection of 110/20êV"
Proslav" s/s with the Electrical Power System:
· Control and Technological Buildings - Architecture
and Construction Part
· Technological - Production Building - Architecture
and Construction Part
- 400êV "Plovdiv" S/s -
Refurbishment Capabilities of 400 kV Switchyard by a breaker and a half
diagram with its following changes in 220êV è 110êV Switchyards -
Extension and refurbishment of 220êV Switchyard:
· Axonometry, situation, portals, tables and
foundations
· Vertical planning, roads and Water Supply and
Sewage
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment 220êV, 110êV and Medium Voltage Switchyards
- New 400êV Switchyard - Construction Part:
· Axonometry, situation, portals, devices' tables
and basements
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
220êV, 110êV and Extension and refurbishment:of Medium Voltage
Switchyards - Refurbishment of 220êV switchyard - Civil Construction
Part:
· Axonometry, Situation, Portals, Tables and
Foundations
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment: of 220êV, 110êV and Medium Voltage
Switchyards - Refurbishment of 110êV Switchyard - Construction Part:
· Axonometry, situation, portals, devices' tables
and basements
· Vertical Planning, Roads and Water Supply and
Sewage System
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220êV, 110êV and Medium Voltage
Switchyards:
· Switchgear with Medium Voltage 20êV Switchgear-
Architecture, Civil Construction part
· Switchgear with Medium Voltage 10êV Switchgear:
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and Refurbishment by 400 kV interconnection,
Extension and Refurbishment:of 220êV,110êV and medium voltage
Switchyards
· Garages - Architecture, Civil and Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment:of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/220êV transformer:
· Building of 31,5êV Switchgear with 31,5êV
Switchyard - Architecture and Civil Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment of 220êV, 110êV and Medium Voltage
Switchyards - 31,5êV Switchyard to 400/110êV transformer:
· Building of 31,5êV Switchgear with 31,5êV
Switchyard - Architecture and Civil Construction Part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and Refurbishment of 220êV, 110êV and medium voltage
switchyards - Control and production building:
· Architecture;
· Construction part
- 220/110êV "Maritsa East" s/s,
Galabovo - Extension and refurbishment by 400 kV interconnection,
Extension and refurbishment:of 220êV, 110êV and medium voltage
switchyards - Technological - production building:
· Architecture;
· Civil and Construction Part
- Scientific researches of 220/110/20êV"Gorna
Oriahovica" s/s - Refurbishment of 110êV Switchyard and
replacement of the portals:
· Condition and Assessment of Civil Ñonstructions
- Scientific researches of 110/20êV"Burgas
- industry" s/s - Refurbishment of 110êV Switchyard and
Selection of System Configuration for Digital Relay Protection,
Automation and Telemetry:
· Ñonstruction Condition and assessments
- 110/20/10êV "Festivalna" s/s -
Reconstruction of switchgear
· Civil and Construction Part
- 110/20/10êV "Festivalna" s/s -
Replacing disconnectors for switchyard 110êV
· Civil and Construction Part
- 110/10êV "Georgi Dimitrov" s/s
- Replacing breakers and disconnectors for switchgear
110êV
· Civil and Construction Part
» 2004
| General Energy
Developments: |
|
- Scientific Researches of connecting Wind Energy Park
60MW to network 110kV
- Reconstruction of switchyard 110kV at HPP "Studen Kladenetz" - initial
investigation
- Scientific Researches and Prognostic of Energy Development of region
of Sofia
| Substations: |
|
- 110/20kV "Bourgas
industria" s/s - extension and refurbishment by 110kV switchyard
· Automatisation System for 110kV and 20kV
switchyard with controllers
· Relay protection 110kV switchyard
- 220/110/20kV "Gorna Oriahovitza" s/s
- new switchyard 20kV
· Primary commutation
· Secondary commutation
· Civil construction part
- 110/20kV "Haskovo II" s/s
refurbishment switchyard 20kV
· Primary commutation 110kV
· Civil construction part
- 110/20kV "Kameno" s/s -
technical assistance
- 220/110/20kV "Balkan Gabrovo" s/s
· earthing installation
· upgrade of the lighting installation
- 110/20/10kV "Festivalna" s/s
- refurbishment switchyard 20kV
- 400/220/110/31,5kV "Plovdiv" s/s
- tender documents
- Moto Phoe Ford center - protect installation from OHL 110kV
- 110/20/10kV "Orion" s/s -
replacement disconnectors in switchyard 110kV
· Primary commutation 110kV
· Civil construction part
- 110/20 kV "Capitan Petko" s/s
- reinforcing walls at switchgear 20kV
- 400/220/110/31,5kV "Plovdiv" s/s
· Building for technological halls for specialized
personnel - techological part, computer, telephone and el. installation
and water supply
· Additional building for halls with communicational
devices
- Replacing breaker ÌÌÎ 110/1600À for switchgear 110êV at
"Sredets" s/s
- Investigating and designing "Earthing ÀÑ neutral of transformators
110/10êV at "Boiana" s/s
- Design of replacing breaker ÌÌÎ 110/1600À for switchgear 110êV at "Studentski grad" s/s
- Accelerated relay protection 110êV
HVOHL 110êV
"Spartak"
- 400êV "Plovdiv" s/s -
temporary el. supply for the time of the reconstruction
- 110/20êV "Djumaia" s/s - new power supply for
switchgear 20êV
- 400êV "Plovdiv" s/s - Creating exclusive
documentation for transformators
400/110êV
- 400/110êV "Metalurgichna" s/s - Reparing functionality of
broken transformator 400/110êV
250MVA
- "Boyana" s/s - replacing of
surge arresters
- "Vrajdebna" s/s - replacing
of surge arresters
- "Plovdiv South" s/s 400/220/110êV
- Reconstruction of switchyard 220êV
· Primary commutation
· Civil construction part
- HPP "Vycha II"
- Technical assignment for activating Hydrogenerator 1 and
Hydrogenerator 2
| HV Overhead
Transmission
Lines: |
|
- 20êV HVOHL "Lackprom"
- detailed design
- 110êV HVOHL "Dimitrovgrad" -
technical consultations
- 110kV HVOHL over the Ford center
- protect design
- 110kV HVOHL "Severni Rodopi"-
"Davidkovo" - executive drawings
- 110kV HVOHL "Ardino"- "Davidkovo"
- executive drawings
- 110kV HVOHL "Morsko oko" -
new lines with reclousers
- 400êV HVOHL - tower No81 -
"Plovdiv" s/s
- 110êV HVOHL "Bistritza" - "Pavlovo"
- commercial building - protection from OHL
- 220êV HVOHL "Trakia" - "Rumelia"
- 220êV HVOHL "Rumelia" - Parvenetz"
- new towers in front of "Plovdiv" s/s
- 400êV HVOHL "Tzervena mogila" -
"Stob Macedonia" - tender documents
- 220êV HVOHL "Elin Pelin" - Bailovo"
- OPGW
- 400êV HVOHL "Tzervena mogila" -
"Stob" - OPGW
- 110êV HVOHL "Balgarka" -
refurbishment
- 400kV "Nishava" Bulgaria - Serbia
- OPGW
- 110êV HVOHL "Festivalna" s/s - "Mladost" s/s -
reconstruction
- Installing optical fibres OPGW at 110êV
HVOHL "Razgrad" s/s - " Razgrad 1"
- HVOHL "Kamen del" - " Boerica " and HVOHL
"Gorna Bania" - "Residention" - Invsetigating reconstruction
plans for theexisting HVOHL 110êV
"Kamen del " - "Boerica " and HVOHL "Gorna
Bania" - "Residention" in the area within
"Krano selo" s/s and the ring around the city of Sofia
- Removing an exinsting tower from HVOHL
"Izgrev"
- Investigating the need of protection for the conductors from HVOHL 110êV "Vishegrad" - "Granichar"
- 110êV HVOHL from the national system to
"Proslav" s/s
- 110êV HVOHL
"Hr, Smirnenski" s/s - "Proslav" s/s
- 110êV HVOHL
Power Plant Plovdiv - "Proslav" s/s
- 110êV HVOHL
"N. Krichim" - "Proslav" s/s
- 400kV HVOHL through "Plovdiv" s/s
- temporary joint
- 220kV HVOHL "Plovdiv" s/s
- removing
- 110kV HVOHL
- "Dorostol" -
reconstruction
- 110kV HVOHL
- "Vishegrad - Granichar"
- reconstruction
| ATES: |
|
- Actual design of 110/20kV
"Bourgas industria" s/s - refurbishment of 110êV Switchyard and
choosing configuration of the system for digital relay protection,
automation and telemetry
· SCADA without the requirement of
any personnel
· HF channel
"Burgas Industry" s/s - " Burgas 400êV" s/s
· HF channel
"Burgas Industry" s/s - "Pobeda" s/s
· HF channel
"Burgas Industry" s/s - "Slaveikov" s/s
· HF channel
"Burgas Industry" s/s - ï/ñò
"Ñëàâåéêîâ"- "Ribari" s/s
· HF channel "Ribari" s/s - "Pobeda" s/s
· HF channel
"Burgas Industry" s/s -
"Burgas 400Êv" s/s along HVOHL "Spartak"
| Urban networks: |
|
- Optical connections between national grid and central Dispatching Center of Bulgaria
· using the existing network of the city el.
transport
· using existing cable channels
- "Proslav" s/s -
Reconstruction and installing new íà CL 20êV for "Pump station -
south", OL 20êV "Proslav",
"Zlati trap", "Orizare 4", "Ortahan", "Kostievo","Libher - 1","Libhe r-
2" and
"6-th km"
- "Proslav" s/s, CL 20êV from
"Proslav" s/s - Reconstruction of the tube network and building new
areas at "Evreisko selishte"
- "Proslav", CL 20êV from
"Proslav" s/s - Reconstruction of the tube network and building
new areas in southern direction towards "Hirurgii", "Blokovi jilishta"
and "Peshtersko shosse"
Civil Construction
Group:
|
|
- 110/20kV "Jumaia" s/s - new
building
· Architecture part
· Civil part
· Installations
- 400/220/110/31,5kV "Plovdiv" s/s
- new building A
· Architecture part
· Civil part
· Installations
- 400/220/110/31,5kV "Plovdiv" s/s
- new building B
· Architecture part
· Civil part
· Installations
- OHL "Morsko oko" -20kV
- Auto reclosers
- 110/20kV "Haskovo center " s/s
- new 3 stage building
· Architecture part
· Civil part
· Installations
- 110/20êV "Capitan Petko Voivoda" s/s
- Reinforcement of Switchgear 20êV
· Architecture part
· Civil part
· Installations
- 110/20/10êV "Orion" s/s -
Switchyard
110êV
- Replacing of disconnectors 110êV - tables
- Investigating and design of earting through the ÀÑ neutral of
transformators 110/10êV at 10 êV in "Boiana" s/s - fundamentals,
constructions etc.
- Investingating and designing the replacing of breaker "Sectioning"
ÌÌÎ
110/1600À at Switchgear 110êV ad
"Studentski grad" s/s
- Investingating and designing the replacing of breaker "Sectioning"
ÌÌÎ
110/1600À at Switchgear 110êV ad
"Sredetz" s/s
- 400/110 kV
"Metalurgichna" s/s - fundamentals for transformators
- 110/20 kV
"Asenovgrad" s/s - fundamentals for transformators
» 2005
| General Energy
Developments: |
|
- Study of the impact of double 110 êV HVOHL over 110 kV grid
reliability in the region of Sofia
City NEK-EAD
- 110 kV Grid and è íà s/s 110/MV kV operating features analysis in the
region of Sofia City Utility – Sofia
- Technical study of the possibilities to use vacuum breakers for the
generators at HPP Ivailovgrad, Studen
kladenetz, Òeshel, Êardjali, Batak NEK-EAD - HPP Group Rodopi
- Titan – Zlatna Panega –
options for power supply schemes TITAN Zlatna Panega
- TPP Plovdiv north –
assessment and technical solutions for shifting Switchyard 110 kV
NEK-EAD
- “Metro II” s/s – Feasibility
Study Utility – Sofia
- 750/400/220 kV “Varna” s/s – reconstruction
• Current distribution and Short Circuit Currents at
Switchgears 400 and 220 kV NEK-EAD
- 400/220/110 kV “Dobrudja” s/s
• Current distribution and Short Circuit Currents at
Switchgears 220 and 110 kV NEK-EAD
| Substations: |
|
- “Sredetz” s/s –
Research and design for full H single line diagram – classic and module
equipment Utility – Sofia
- “Borimechka” s/s – Research
and design for full H single line diagram – classic and module
equipment Utility – Sofia
- “Poduene” s/s – Research and
design for full H single line diagram – classic and module equipment
Utility – Sofia
- “Al. Naumov” s/s – Research
and design for full H single line diagram – classic and module
equipment Utility – Sofia
- “Hipodruma” s/s – Research
and design for full H single line diagram – classic and module
equipment Utility – Sofia
- “Proslav” s/s – Drawings for
Control and relay protection Switchgear 20 kV with SAS system Utility –
Sofia
- 110 kV “Razgrad III” s/s –
Drawings for Control and relay protection Switchyard 110 kV with SAS
system NEK - EAD Òrafoelectroinvest
- 110/20 kV “Proslav” s/s –
Drawings for Control and relay protection 110 kV HVOHL with SAS system
NEK - EAD Òrafoelectroinvest
- 750/400/220 kV “Varna” s/s –
reconstruction
• Hypertension protection of Switchgear 400 kV–
Survey
• Hypertension protection of Switchgear 220 kV–
Survey
• MV hypertension protection – research and Survey
NEK-EAD
- 750/400/220 kV “Varna” s/s –
reconstruction
• Switchyard 750 kV – Layout, sections and
arrangement of Switchyard of the interconnection of ÀÒ 701 and ÀÒ 702
NEK-EAD
- 750/400/220 kV “Varna” s/s –
reconstruction
• Switchyard 400 kV– Layout, sections and
arrangement of Switchyard at terminals Otechestvo and Saedinenie
• Switchyard 400 kV – Drawings for Control and relay
protection terminals Otechestvo and Saedinenie
• Switchyard 400 kV – Layout, sections and
arrangement of Switchyard and relay protection ÀÒ 701 and ÀÒ 702
• Switchyard 400 kV – Drawings for Control and relay
protection ÀÒ 701 and ÀÒ 702
• Switchyard 400 kV – bus-bar differential
protection NEK-EAD
- 400/220/110 kV “Dobrudja” s/s
– reconstruction
• Hypertension protection of Switchgear 400 kV–
Survey
• Hypertension protection of Switchgear 220 kV–
Survey
• MV hypertension protection – research and Survey
NEK-EAD
- TPP “Ìaritza 3” – Dimitrovgrad
• Health and Safety Plan of control buildings and
Switchgear NEK-EAD
- ”High Voltage Network” Enterprise – Haskovo
110/20 kV “Slanchev briag” s/s–Extension with third transformer
• Layout, sections and arrangement of Switchyard
• Drawings for Control and relay protection NEK -
EAD Òrafoelectroinvest
- “Bankia” s/s – Replacement
of 110êV breaker
• Layout, sections and arrangement of Switchyard
• Health and Safety Plan NEK-EAD
- ”High Voltage Network” Enterprise – Sofia
Area 110/10 kV “Cherni vrah” s/s – Replacement of power
transformer
• Layout, sections and arrangement of Switchyard
• Drawings for Control and relay protection Utility
– Sofia
- 110/10 kV “G. Dimitrov” s/s
– Replacement of power transformer
• Layout, sections and arrangement of Switchyard
• Drawings for Control and relay protection Utility
– Sofia
| HV Overhead
Transmission
Lines: |
|
- 220 kV HVOHL Hemus – Stara
planina
• Replacement of lightening protection conductor
with OPGW NEK-EAD
- ”High Voltage Network” Enterprise 400
kV HVOHL Karlovo – Plovdiv
• Trace replacement from tower 81 to “Plovdiv” s/s
NEK - EAD Òrafoelectroinvest
- 110 kV HVOHL Poligon – Dervenia
• Replacement of lightening protection conductor
with OPGW NEK - EAD Òrafoelectroinvest
- 110 kV HVOHL Manastiritza –
revision NEK-EAD ”High Voltage Network” Enterprise –Ruse
- 400 kV HVOHL - Otechestvo
• OPGW to “Madara” s/s NEK - EAD Òrafoelectroinvest
- 400 kV HVOHL – Chervena mogila –
Dubrovo
• Traces modification NEK - EAD Òrafoelectroinvest
- 110 kV HVOHL around “Proslav” s/s
• Fan modifications NEK - EAD Òrafoelectroinvest
| ATES: |
|
- 110/20 kV “Proslav” s/s
• PLC Dispatching Connections NEK - EAD
Òrafoelectroinvest
- 110/20 kV “Proslav” s/s
• Optical connections NEK - EAD Òrafoelectroinvest
- 110/20 kV “Proslav” s/s
• Telemetry with SCADA system NEK - EAD
Òrafoelectroinvest
- Emergency power supply of telemetric equipment at TCU south NEK - EAD
Òrafoelectroinvest
| Urban networks: |
|
- Study of options and update of schemes for external power supply MV of metro railway 1st diameter
Metroproekt Ltd
Civil Construction
Group:
|
|
- TPP Maritza east 2
– new Support constructions for Disconnectors NEK - EAD
Òrafoelectroinvest
- 750/400/220 kV “Varna” s/s -
Reconstruction
- Geodesic Survey NEK-EAD
- 400/220/110 kV “Dobrudja” -
Reconstruction
• Geodesic Survey NEK-EAD
- “Bankia” s/s – Replacement
of 110êV breaker
• Support constructions and Fundaments NEK-EAD
- ”High Voltage Network” Enterprise – Sofia Area
- “Sunny beach” s/s –
extension with a third transformer
• Civil part–Switchyard 110 kV –Support
constructions and Fundaments NEK - EAD Òrafoelectroinvest
- “Sofia center” s/s –
fortification of transport passage of a power transformer Utility –
Sofia
» 2006
| General Energy
Developments: |
|
- Furder development of the network 400, 220 and 110 kV till
2010/2015 – energy balance NEK-EAD
- Investigation parameters and loses of power transformers 400 kV
“Institute of energy”Plc
- Studies of the posibilities to change power betwen energy system of
Turkey and the countries of southeast Europe in parallel conditions
NEK-EAD
- Energy studies for connecting of HPP down the river Iskar in the
regiont Ìåzdra and Roman NEK-EAD
| Substations: |
|
- Revision detailed design control room and swichgear 20 kV –
Civil and Architectural part îò “Djumaia”
s/s for “Sliven” TPP NEK-EAD ”High Voltage Network” Enterprise –
St.Zagora
- Studen Kladenetz HPP –
refurbishment of 110 kV Switchyard from single buss bare to duble buss
bare– complete design NEK-EAD - HPP Group Rodopi
- 110/20/10 kV “Êambanite” s/s
Utility - Sofia
- 400/220/110/31,5 kV “Dobrudja” s/s
– Drawings for Control and relay protection of 31,5 kV switchyard
NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– SCADA automation system and SAS for 400 kV and 220 kV switchyard
NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
–20 kV and 10 kV switchyard – Layout, sections and arrangement of
Switchyard and Drawings for Control and relay protection NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– auxiliary power cotinius current NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– auxiliary power alternativ current NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
–220 kV switchyard – Layout, sections and arrangement of Switchyard
NEK-EAD
- 400/220 kV “Varna” s/s –
SCADA automation system and SAS for 220 kV switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
–31,5 kV switchyard – Layout, sections and arrangement of Switchyard
and Drawings for Control and relay protection NEK-EAD
- 400/220 kV “Varna” s/s –
medium voltage switchyards cotinius and alternativ current NEK-EAD
- 400/220 kV “Varna” s/s – new
220 kV switchyard – Layout, sections and arrangement of Switchyard
NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– diesel generator
• Electrical part
• Architectural part
• Construction
• Electrical Lighting
• Mecanical part NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– security and TV watching NEK-EAD
- 400/220 kV “Varna” s/s –
security and TV watching NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– new disconectors before power transformers ÀÒ401 and ÀÒ402 NEK - EAD
Òrafoelectroinvest
- 110/20 kV “Êostinbrod” s/s –
Electrical part Layout, sections and arrangement of Switchyard for new
portals NEK-EAD ”High Voltage Network” Enterprise – Sofia area
- 220/110kV “G. Oriahovitza” s/s
– change equipment in 110 kV switchyard – Layout, sections and
arrangement of Switchyard NEK - EAD Òrafoelectroinvest
- 400/220 kV “Varna” s/s –
substitution íà differential protection of ÀÒ701 and ÀÒ702 – 1150 MVA
NEK - EAD Òrafoelectroinvest
- Design of HF chanel 400 kV Petrohan
in 400/110 kV “Sofia west” s/s “Electroizgrajdane” Ltd.
- 110/6 kV “7” s/s – refurbishment of 110 kV switchyard – Layout,
sections and arrangement of Switchyard and Drawings for Control and
relay protection “Mine Maritza East”
Ltd.
- 110/20 kV “Yambol” s/s–
Layout, sections and arrangement of Switchyard for change of portals
NEK-EAD ”High Voltage Network” Enterprise – Burgas
- 220/110 kV “Uzundjovo” s/s–
change equipments 220 kV switchyard – Layout, sections and arrangement
of Switchyard and Drawings for Control and relay protection NEK-EAD
”High Voltage Network” Enterprise – Haskovo
- 6 kV s/s factory “TITAN” – Zlatna
Panega – ålectrical part TITAN Zlatna Panega
- 400/110 kV “Ìåtalurgichna” s/s
– change transformers Medium Voltage Switchyards NEK-EAD ”High Voltage
Network” Enterprise – Sofia
- 110/20/6 kV “Ìàrtinovo” s/s
– Earthing installation and lighting instalation NEK-EAD ”High Voltage
Network” Enterprise – Montana
- 110/20/6 kV “Lozovo” s/s –
refurbishment of 110 kV Switchyards
• Electrical part – Layout, sections and arrangement
of Switchyard and Drawings for Control and relay protection
• Relay protection Start engineering JSC
- 220/110 kV “Balkan” s/s –
110 kV Switchyards – refurbishment – Electrical and Construction part
NEK-EAD ”High Voltage Network” Enterprise
- 110/20 kV “Dimitrovgrad” s/s
– 110 kV Switchyards – Electrical part , Layout, sections and
arrangement of Switchyard for change of portals NEK-EAD ”High Voltage
Network” Enterprise
| HV Overhead
Transmission
Lines: |
|
- Trace Study for new 400 kV
HVOHL – Refurbishment 400 kV HVOHL, 220
kV HVOHL and 110 kV HVOHL at “Maritza
East I” s/s – TPP NEK - EAD
Òrafoelectroinvest
- Update Design for 110 kV HVOHL
“Stadiona” from “Proslav” s/s – “Plovdiv” TPP NEK - EAD
Òrafoelectroinvest
- Update Design for 110 kV HVOHL
Giueshevo and crossing with OHL 20 kV and network low voltage
NEK - EAD Òrafoelectroinvest
- Refurbishment 400 kV HVOHL “Hebros”
and “Rodopi” from “Plovdiv” s/s NEK - EAD Òrafoelectroinvest
- Optical fiber from “Maritza East”
s/s –to “Kapitan Petko” s/s NEK-EAD
”High Voltage Network” Enterprise 110
êV HVOHL “Chernozem” – “Hisar” – removed NEK - EAD
Òrafoelectroinvest
- 110 êV HVOHL “Plovdiv north” TPP –
“Chernozem” s/s– shifting NEK - EAD Òrafoelectroinvest
- 110 êV HVOHL – “Bobov dol” TPP
– “Samokov” s/s – designe new way and update NEK - EAD
Òrafoelectroinvest
- Refurbishment 220 kV HVOHL from
“Dobrudja” s/s NEK-EAD
- 400 êV HVOHL – “Hebros” –
refurbishment and interconnection of Maritza East” s/s – Galabovo
NEK-EAD
- 220 êV HVOHL – “Êînstantinovo”
– refurbishment and interconnection in “Maritza East” s/s – Galabovo
NEK-EAD
- 110 êV HVOHL – “Ìàlevo” –
“Piasachevo” – refurbishment and interconnection in “Maritza
East” s/s – Galabovo NEK-EAD
- Protection telephon lines from 110
kV HVOHL in district “Proslav” s/s NEK - EAD Òrafoelectroinvest
- Reconstruction and cabling of doble 110
kV HVOHL “Bistritza” – “Pavlovo” of section from tower ¹ 11 to
tower ¹13 “ÀIBIL”
- Optical fiber from “Dobrudja” s/s
to “Varna north” - 110 kV HVOHL “Izgrev” NEK-EAD ”High Voltage
Network” Enterprise
- 110 êV HVOHL from “Lozovo” s/s
– reconstruction Start engineering JSC
- 110 êV HVOHL “Dibich” –
rehabilitation NEK-EAD - ”High Voltage Network” Enterprise – Shumen
| ATES: |
|
- 400/220 kV “Varna” s/s –
Telemetry – 220êV Switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Telemetry –
- 400 êV Switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Telemetry – 220 êV Switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Telemetry – 110 êV Switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Dispatching connections – 400 êV Switchyard NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Dispatching connections – 220 êV Switchyard NEK-EAD
- 400/220 kV “Varna” s/s –
Dispatching connections –
- 400 êV Switchyard NEK-EAD
- 400/220 kV “Varna” s/s –
Dispatching connections –
- 220 êV Switchyard NEK-EAD
- 400/220 kV “Varna” s/s –
Telemetry – 400êV Switchyard NEK-EAD
| Urban networks: |
|
Civil Construction
Group:
|
|
- 400/220/110/31,5 kV
“Dobrudja” s/s – control room for 400 kV Switchyards – parts
Architectural, Construction, Electrical, Heating and ventilation,
Security Guard Equipment, VIDEO NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– control room for 220 kV Switchyards – parts Architectural,
Construction, Electrical, Heating and ventilation, Security Guard
Equipment, VIDEO NEK-EAD
- 400/220 kV “Varna” s/s –
control room for 400 kV Switchyards – parts Architectural,
Construction, Electrical, Heating and ventilation, Security Guard
Equipment, VIDEO NEK-EAD
- 400/220 kV “Varna” s/s –
control room for 220 kV Switchyards – parts Architectural,
Construction, Electrical, Heating and ventilation, Security Guard
Equipment, VIDEO NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
–220 kV Switchyards – parts:
• Construction
• Vertical Planning
• Roads
• Electrical Lighting
• Portal and Support constructions NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– 31,5 kV Switchyards
• Switchyards
• Switchgear NEK-EAD
- 400/220 kV “Varna” s/s – 220
kV Switchyards – parts:
• Construction
• Vertical Planning
• Roads
• Electrical Lighting
• Portal and Support constructions NEK-EAD
- 400/220 kV “Varna” s/s –
Fire protection – all parts NEK-EAD
- 400/220/110/31,5 kV “Dobrudja” s/s
– Fire protection installation – all parts NEK-EAD
- “Maritza Iztok” s/s –
Galabovo – new Control Building – Electrical and Water Supply and
Sewage NEK - EAD Òrafoelectroinvest
- 110/20 kV “Êîstinbrod” s/s –
Replacement with new steel structure portals in 110 kV Switchyards
NEK-EAD ”High Voltage Network” Enterprise – Sofia area
- 220/110 kV “G. Oriahovitza” s/s
– Replacement support steel structure – 110 kV Switchyards NEK - EAD
Òrafoelectroinvest
- “Maritza Iztok” s/s –
Galabovo – Revision control building – Civil and Architectural part.
NEK - EAD Òrafoelectroinvest
- “7” s/s – 110 kV Switchyards
–Portal and Support constructions “Maritza East Minning” Ltd.
- Studen kladenetz HPP –
refurbishment of 110 kV Switchyard from single buss bare to duble buss
bare – Architectural and Construction parts – portals, planning etc.
NEK-EAD - HPP Group Rodopi
- 110/20 kV “Yambol” s/s –
Layout, sections and arrangement of Switchyard for Replacement of the
portals and equipment NEK-EAD ”High Voltage Network” Enterprise – Burgas
- 220/110 kV “Uzundjovo” s/s –
Replacement of the support steel structure NEK-EAD ”High Voltage
Network” Enterprise – Haskovo
- “6 kV” s/s factory “TITAN” –
Zlatna Panega – Architectural part Factory “TITAN” – Zlatna Panega
- 110/20 kV “Dimitrovgrad” s/s
– 110 kV Switchyards – Architectural and Construction parts Layout,
sections and arrangement of Switchyard for Replacement of the portals
NEK-EAD ”High Voltage Network” Enterprise
The Authorship Supervision of all
Projects is implemented
by the Collaborators of the Company providing on-site competent
solutions during the construction and commissioning of the respective
Project
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