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- Electrical switchgear and equipment up to and over 1000V
- Electrical switchgear and equipment up to 30kV
- Electrical machines and equipment up to 35kV
- Electrical machines and equipment for voltage up to 1000V
- Electrical protective equipment
- Cables and cable lines up to 35kV
- Power transformers up to 400kV
- Electrical Insulating Oil up to 220kV
- Direct and alternating current electric motors up to 6kV
- Power circuit breakers and disconnectors for up to 400kV
- Relay protection, electric automation controls, telemechanics and secondary circuits in electrical switchgears for up to and over 1000V
- Current and voltage measuring transformers for up to 400kV
- Fiber optic cable lines
- COMPLAINTS AND OBJECTIONS
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- Machinery
- Basket Crane Truck TATRA
- Basket Crane Truck MERCEDES
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- Truck MAN with Crane
- Truck MERCEDES
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- Excavator JCB Multifunctional
- Mini Excavator KOMATSU
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- Production
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- Projects
- Current Projects
- Reference Projects
- Reconstruction of 110kV switchgear in LUKOIL Neftohim Burgas AD
- Construction of new 110/20 kV Substation Kableshkovo
- Reconstruction of 110 kV Switchyard in 110/20 kV S/st Lovech
- Design and construction of two complete transformer stations to supply charging stations, design and construction of cable routes to charging stations
- Construction of bay No. 18 in 220 kV Switchyard at Maritsa East 2 TPP
- Power Supply of ID Fan in Unit 7 - Primary and Secondary Commutation
- Substitution of electrical drives in 110 kV Switchyard in Maritsa East 2 TPP
- Erection, installation and commissioning of main equipment in Flue Gas Desulphurization Plant (FGD) and Gypsum Dewatering Plant at Maritsa East 2 TPP
- Erection of 20/6/0,4 kV Movable Substation "Staroselec"
- Reconstruction and enlargement of 400 kV Switchyard in Maritsa East 3 TPP, as part of a 400 kV Power Distribution Line from Maritsa East 3 TPP to substation Alibeykjoy (Turkey)
- Complete engineering of Lighting and Socket Installation in Gypsum Dewatering Plant at the FGD Plant in Maritsa East 2 TPP
- Reconstruction and commissioning of 10 kV Indoor Switchgear in 110/10 kV Substation Zora in Stara Zagora
- Rehabilitation of Power Unit 2 of Maritsa East 3 TPP
- Rehabilitation of 220 kV Switchyard at Maritsa East 3 TPP - second stage: substitution of disconnectors and circuit breakers
- Substitution of 20 kV circuit breaker for main pump in Oil-supply Farm Stara Zagora
- Integration of 110/20 kV Substation Proslav to the Bulgarian Electrical System – 2nd stage, installation works
- Construction of cable trays and laying of power cables for power supply of FGD Plant for Units 1, 2, 3 and 4 in Maritsa East 3 TPP
- Dismantle works in 400 kV Outdoor Switchgear of 400/220/110/31,5 kV Substation Plovdiv – South, First and Second Stage
- Rehabilitation of 400 kV Switchyard in Maritsa East II TPP
- Reconstruction of 400/220/110/31,5 kV Substation "Plovdiv-South" - Reconstruction and Enlargement of Switchyard 400 kV
- Complete engineering for substitution of electrical equipment in 0,4 kV Indoor Switchgears, in Unit 1, Unit 2, Unit 3 and Unit 4 of Maritsa East 2 TPP
- Rehabilitation of Maritsa East III - Unit 1
- Design, erection and putting into operation of 110/20 kV Substation Byala
- Construction of commercial measuring of the electrical energy in Kaproni Plc., Kazanlak
- Substation Parvomay - repair of 1-st section of the 110 kV Switchyard
- 220/110 kV Substation Aleko, Pazardzhik - Rehabilitation of 220 kV Outdoor Switchgear
- Construction of Main Pipe Belt Conveyor №2 - Maritsa East 2 TPP
- Maritsa East 3 TPP - Rehabilitation of Unit 4
- Delivery of electrical materials and electrical works in Maritsa East 1 TPPAES Maritsa East 1 EOOD
- Commissioning works in Water-Filtering Station in Dimitrovgrad
- Electrical works in Oil-Supply Farms Ihtiman, Iliyantsi and Vetren
- Delivery and retrofit of 6kv Circuit Breakers (CBs), design of project for installation of CBs and installation of two CBs
- Supply and installtion of lighting system in Buffer pond area at Enel Maritsa East 3 Power Plant
- Manufacturing of electrical panel for control of technological process
- Substation Parvomai - repair of 2-nd section of the 110 kV Switchyard
- Delivery of electrical equipment, design and installation works related to integration of Fire Fighting System to Fuel Oil Plant and Coal Handling Plant of Enel Maritsa East 3 TPP
- Rehabilitation of Units 3 and 4 in Maritsa East 3 TPP - Electrical works
- Electrical installation of Stacker / Reclaimer, as part of the Coal and Limestone Handling System at Maritsa East 1 TPP
- Design, installation and commissioning of C&I and electrical equipment in Coal Handling Plant, Enel Maritsa East 3 TPP
- Maritsa East Substation, Galabovo - erection of 400 kV and 31,5 kV Switchgears, 630 MVA Autotransformer 400/220/31,5 kV; Reconstruction and extension of 220 kV Switchgear
- Electrical Installation of Electrostatic Precipitators (ESP) - units 1 and 2 in Maritsa East 1 TPP
- Construction of 110/20 kV Substation Suvorovo, part of the Project for erection of Wind Farm Suvorovo
- Rehabilitation of 400/110/31.5/20 kV Substation Burgas
- Erection of 110/20 kV Substation Helios
- Disassembly, design, installation and commissioning of electrical and C & I equipment in Coal Handling Plant at Enel Maritsa East 3 TPP
- Reconstruction of 110/6.3 kV Substation No. 2B
- 110/20/6 kV Substation No.7 – Reconstruction of 110 kV Switchyard; Reconstruction of 110 kV Terminal Baikal and 110 kV Terminal Detelina /Sotirov/
- Electrical works for construction of Photovoltaic Park Letnitsa
- Construction and electrical works for erection of Photovoltaic Park Dushantsi
- Construction works in Troyanovo-3 Mine, Subproject: 110/20/6 kV Substation Iztochna
- Reconstruction of the 110 kV Switchyard on Substation Slaveykov
- Repair of concrete foundations in 400 kV Substation Burgas
- 110/20 kV Substation Aytos– reconstruction and enlargement of 110 kV switchyard
- Engineering project for manufacturing, installation and set-up of cabinets and boards with relay protection for Substations 220 kV and 400 kV of The National Electric Company EAD
- Reconstruction and enlargement of 110/20 kV Substation Kavarna
- 400/220/110 kV Substation Mizia – Reconstruction of 400 kV, 220 kV and 110 kV Switchyards
- Construction of 110 kV Substation Mayak
- Reconstruction and modernization of 110/15.75/6.3 kV Main Step-down Substation-2 (GPP-2), located in LUKOIL Neftohim Burgas AD
- Substitution of 6 kV cables from First and Second Feeder to 6,3/0,4 kV Substation No. 220BH in LUKOIL Neftohim Burgas AD
- Elaboration and realization of a Design for substitution of circuit breakers and disconnectors in 20 kV Indoor Switchgear at Oil-tank farm, located in LUKOIL Neftohim Burgas AD
- Rehabilitation of the main transformer substations and construction of new mobile substations with adjacent distribution devices and connecting equipment, designed to increase the power supply from 6 kV to 20 kV – in Troyanovo-Sever and Troyanovo-3 mines
- Changing the power supply scheme of 6/0.4 kV Substation No. 214, to direct power supply from 6 kV Indoor Switchgear of S/st GPP-2, first and second section
- Supervisory Control and Data Acquisition (SCADA) System of eight railway stations, three Main Section Posts (MSP), and two Traction Substations (TS) TS Voluyak and TS Aldomirovtsi, situated along the railway lot Sofia – Kalotina-West
- Enlargement of 110 kV Switchgear in 110/10/6.3 kV Substation Chelopech
- Substitution of 20 kV distribution Switchgear in 20/6/0.4 kV Substation PS Maritsa at Neochim PLC
- Reconstruction and modernization of 6 kV Switchgear in Substation No. 209
- Reconstruction of external power supply for Substation 208 HV
- Repair of transformers in Unit 1, Unit 2, Unit 3, and Unit 4 at Contour Global Maritsa East 3 TPP
- Electrical and C&I works for construction of Installation for rough clearing of second-use scrap paper, at Glavinitsa Village, Pazardzhik
- Maintenance of lighting installations in Contour Global Maritsa East 3TPP
- Elaboration of detailed design for repair and rehabilitation of rectifier stations (RS). Rehabilitation of rectifier stations in the town of Stara Zagora, under the Project for Modernization and development of sustainable public transport in the town of S
- Installation of Substation Automation System (SAS) for 220/110 kV Switchyard at Varna TPP
- Reconstruction of substation 209A and shifting the power supply of operating facilities in LUKOIL Neftohim Burgas AD
- Power supply of Distribution Substation in Neochim PLC, from 6 kV Main Distribution Substation in Maritsa-3 TPP, Dimitrovgrad
- Repair of cable trestles, mast lighting, and Repair Shop panels in LUKOIL Neftohim Burgas AD
- Design, supply of equipment for 6 kV Substation, dismantle of existing equipment, installation, tests and commissioning at Oil-tank farm Rosenets, located in LUKOIL Neftohim Burgas AD
- Reconstruction of 110 kV relay protection in main step-down substation GPP-2 and in the opposite main step-down substations in LUKOIL Neftohim Burgas AD
- Reconstruction and enlargement of 220 kV Switchyard at S/st Pleven-1 – turnkey project for design, construction, supply of equipment, electrical installation and commissioning
- Substitution, delivery and commissioning of low-oil measuring transformers in 110 kV Indoor Switchgear of main step-down substation GPP-2 in LUKOIL Neftohim Burgas AD
- Delivery of electrical equipment and execution of electrical works for erection of Karlovo Biomass Power Plant at Stroevo Village
- Erection of pellet production plant: Supply of electrical equipment and construction activities
- Design and construction of two 20/6,3 kV, 10 МVА Step-down Movable Substations
- Delivery, installation and dismantle of 110 kV power circuit breakers and 110 kV power disconnectors
- Installation of electrical heat-tracing to replace existing steam heat-tracing at LUKOIL Neftohim Burgas AD
- Construction of 20 kV Overhead Line (OHL) from S/st Gledachevo to Reclaimer BRs112 in Troyanovo-1 Mine
- Delivery, installation and commissioning of electrical equipment for compensation of reactive power of the heavy industrial mining equipment at Mini Maritsa-Iztok – Troyanovo-1 and Troyanovo-3 Mines
- Recostruction, repair and modernization of traction substations Burgas and Karnobat
- Еlectrical and C & I activities at a new ammonia production unit in existing fertilizer complex Duslo, located in Šaľa, Slovak Republic
- 500/220 kV Substation JVARI near the town of Zugdidi, Georgia
- Delivery and installation of 2х1000kVA, 20/0,4 kV Concrete Transformer Station (CTS) for Pelletization Plant
- Warehouse and production hull at Pelletization Plant BIOMASS DISTRIBUTION
- Repair of transformers in Unit 1, Unit 2, Unit 3, and Unit 4 at CONTOURGLOBAL Maritsa East 3 TPP
- 400/220/110 kV Substation Maritsa-iztok – reconstruction of 110 kV Switchyard
- Construction of new 110 kV Cable Line Kiparis, from S/st Zagorka to S/st Trayana
- Repair of remote monitoring of Substation-2, at Port Terminal Rosenets
- Reconstruction of feeder bays for Substation 214 from Substation GPP-2, including installation of differential protection with Intertrip function for power supply cables
- Reconstruction of 110 kV Switchyard at 220/110/20/10.5 kV Substation Karnobat
- Design, delivery and substitution of oil bushings with bushing insulators, in 110 kV Indoor Switchgear at Substation GPP-2
- Substitution of equipment in 110 kV Switchyard in Aurubis Bulgaria Plant
- Workshop 132. Substitution of two input circuit breakers and one section circuit breaker in transformer Substation TP-62
- Engineering Project for elaboration of electrical and automation design for Montbard VBM120 production machine; completion of the activities set in the design
- Enlargement of 110/6.3 kV Substation Biovet
- Substitution of control cables for 110/6 kV power transformers and repair of cubicles of 6 kV Indoor Switchgear, at Main Step-down Substation GPP-2
- Reconstruction of feeder bays for Substation 227 from Substation GPP-2, including installation of differential protection with Intertrip function, for power supply cables
- Workshop 700. Rehabilitation of Distribution Substation РП-6
- Repair of transformers in Unit 1, Unit 2, Unit 3, and Unit 4 of CONTOURGLOBAL Maritsa East 3 TPP
- Electrical and construction works in Biovet Plant
- Service maintenance and repair of frequency invertors
- Installation and commissioning of electrical equipment in Substations Razgrad and Amylum
- Workshops 620 and 630. Substitution of input circuit breakers, bus coupler breakers, and output circuit breakers in Distribution Switchgears of Transformer Stations ТП-55 and ТП-57
- Delivery, installation and commissioning of MV vacuum contactors
- Construction of 110/20 kV Provisional Substation Ihtiman
- Reconstruction of 110 kV Switchyard in 110/20 kV Substation Chirpan
- Repair of buildings owned by Sliven Network Operating Sub-District (NOSD)
- Substitution of 29 frequency drives for electromotors of air coolers in Hydrocracking Complex
- Reconstruction of input feeder bays and output feeder bays in 6 kV Switchgear in Main Step-down Substation GPP-4
- Maintenance, reconstruction and construction of new street lighting installations in Stara Zagora Municipality
- Modernization of 110 kV Switchyard in S/st Rosenets
- Reconstruction of 110/20 kV Substation Ardino
- Enlargement of 400 kV Switchyard in S/st Maritsa Iztok 3
- Repair of facade, roof and premises in Control-administrative building and Indoor Switchgear at Substation Primorsko
- Repair of cable ducts, foundations, and measuring bays in 110 kV Switchyard at Substation Dimitar Kanev
- Repair of fence of 110 kV Switchyard in S/st Chernozem
- Retrofit of 20 kV Switchgear in S/st Borisovgrad
- Repair of facade and reconstruction of premises in Control-and-administrative Building and Indoor Switchgear at Substation Malko Tarnovo
- Design, delivery, installation and commissioning of two frequency converters
- Rehabilitation of 20 kV cable connections in S/st Dimitar Kanev
- Retrofit of 10 kV Switchgear in S/st Trayana
- Repair of 110 kV bays and construction of Substation Automation System in S/st Aytos
- 110/20 kV Substation Lauta – construction of new 110 kV feeder bay
- Rehabilitation of 110 kV Switchyard (old part) in 400/220/110/31.5 kV S/st Plovdiv
- Repair of MV bays in S/st Kabile
- Substitution of control cabinets in 110kV Switchyard, S/st Besapara
- Rehabilitation of 20 kV connections at S-st Arpezos
- Reconstruction of 6 kV Switchgear in 110/6.3 kV Substation Poliesterni vlakna
- Connection of an 80 MW Photovoltaic Power Plant
- Overall reconstruction and modernization of Kazanlak Pumping Station
- 110/20kV Substation Melta – reconstruction of 110kV Switchyard and connection to industrial park
- Modernization of 110/25kV Traction Substation Tvarditsa
- 110/20kV Main distribution substation at Industrial Park Balkan
- Reconstruction of 20kV Indoor Switchgear in Substation Slaveykov
- Yasna Polyana DWTP – reconstruction the Filtering and Pumping Station
- SCADA, electrical panels, and commissioning of 33/110kV step-up substation at PV Park Greens
- Modernization of 6kV Switchgear at industrial substation
- Integration of frequency regulator at industrial compressor
- Integration of frequency regulator at industrial compressor
- Activity Areas
- Projects Map
- News
- The Schrack Technik Demonstration bus will stop at EL KONTROL
- EL KONTROL was admitted to membership in Bulgarian Construction Chamber and entered in the Constructors Central Professional Register.
- On 18.06.2008 EL KONTROL passed accreditation audit to the International Standard for Health and Safety OHSAS 18001:1999
- Electrical erection of Stacker / Reclaimer as part of the coal and limestone handling system at Maritsa East 1 TPP
- Substation 'Parvomai' - repair of 1-st section of the 110kV Switchyard
- SIEMENS Demo - Truck Show
- Supplementary Contract for Rehabilitation of Coal Handling Plant at Enel Maritsa East 3
- On 10.06.2009 a specially equipped demonstration bus WAGO INFO-LINER was situated in front of EL KONTROL’s office.
- New Order - Electrical Installation of Electric Precipitators (ESP) at Maritsa East 1 TPP
- Price-list of Wago Kontakttechnik products
- 10 Years EL KONTROL
- Presentation of Moeller products
- Siemens Presentation: Demo-trucks Equiped with C&I Instrumentation and Low-voltage Equipment
- EL KONTROL EOOD was certified according to the requirements of ISO 14001:2004 standard
- Construction activity
- EL KONTROL - Official Commercial Partner of ABB for Bulgaria
- ABB Demo - Truck Show
- Seminar of Siemens - TIA Portal Innovation Tour
- Completion of the first stage of the construction works on Substation Helios 110/20kV
- The official opening ceremony of the first stage of erection of substation “Helios” 110/20kV took place on June 26th 2011
- SIEMENS Demo - Truck Show
- Repair of concrete foundations of 400 kV Burgas Substation
- Helios Substation
- Еrection of a new Photovoltaic Park ‘Letnitsa’
- Reconstruction of the 110/20kV Switchyard on Substation ‘Slaveykov’
- INDUSTRIAL ELECTRONICS (IE) SERVICE-STATION
- Обучение за експлоатация на честотни регулатори (en-GB)
- Erection of Photovoltaic Park Letnitsa
- Dushantsi Photovoltaic Park
- Collaborative seminar for Industrial Automation with SIEMENS
- ABB issued a Certificate by virtue of which EL KONTROL acquired a statute of authorized service partner of ABB
- Modernization of 110/20/6 kV Substation Iztochna situated in Troyanovo-Sever
- In December 2012 EL KONTROL finished works in 110/20 кV Substation Slaveykov, Burgas
- Training Programs in El Kontrol
- In July 2013 we finished implementation of the Reconstruction and enlargement of 110kV Switchyard in 110/20kV Substation “Aytos”
- In December 2013 EL KONTROL commissioned Substations Mayak 110 kV and Kavarna 110/20 kV, located in northwest Bulgaria
- In December 2013 EL KONTROL finished electrical installation works for reconstruction of Substation Mizia 400/220/110 kV. This Substation is the seventh construction site of 400 kV in succession for our Company
- In January 2014 we finished implementation of a project at Mini Maritsa-East Enterprise
- In February EL KONTROL started works under a new contract assigned by LUKOIL Neftohim Burgas AD
- Delivery of electrical equipment and implementation of electrical works for erection of Karlovo Biomass power plant at Stroevo Village
- DZZD EL KONTROL 2014 signed a contract for design and rehabilitation of rectifier stations under the Project for Modernization and development of sustainable public transport in Stara Zagora
- Substitution of 20 kV distribution Switchgear in 20/6/0.4 kV Substation PS Maritsa at Neochim PLC - project was assigned to EL KONTROL by Neochim PLC
- EL KONTROL started works for Reconstruction and modernization of 6 kV Switchgear in Substation No. 209 located on the territory of LUKOIL Neftohim Burgas AD
- A common presentation by EL KONTROL and ABB Bulgaria was held on 20.11.2014 at the business premises of EL KONTROL in Stara Zagora. The event featured Specific characteristics of Emax2 air-insulated Circuit breakers, and Solutions and innovations of ABB r
- EL KONTROL started implementation of electrical works for the Project modernization of Varna TPP
- In March 2015 EL KONTROL started implementation of two new projects: Substation Pleven-1 in the town of Pleven, and Oil-tank farm (OTF) Rosenets on the territory of LUKOIL Neftohim Burgas AD
- In July EL KONTROL started works under a new contract assigned by LUKOIL Neftohim Burgas AD – Reconstruction of 110 kV relay protection in main step-down substation GPP-2 and opposite main step-down substations in LUKOIL Neftohim Burgas AD
- ABB expanded the license rights of EL KONTROL
- EL KONTROL is Builder of the year for 2015 for Stara Zagora Region, Section: Construction sites of power infrastructure
- EL KONTROL became Siemens Solution Partner
- EL KONTROL announces internship positions
- SIEMЕNS and EL KONTROL held a common technical seminar
- EL KONTROL started a new project in Slovakia
- SIRIUS – Industrial Controls
- OPPORTUNITY FOR CARREER START IN EL KONTROL, 2017
- EL KONTROL - the annual technical seminar commonly organized with SIEMENS Bulgaria
- Career Days Exhibition at TU – Sofia
- EL KONTROL successfully completed several major Projects
- Weidmüller Demonstration Truck
- Career start in EL KONTROL for engineers-to-be
- Joint seminar with SIEMENS
- EL KONTROL hosted the annual technical seminar with SIEMENS Bulgaria
- ISO/IEC 27001:2017 Certification
- EL KONTROL won recognition for commercial results
- Implemented projects
- The SIRIUS Demo-truck is heading to Stara Zagora
- SIRIUS – Industrial Control
- The Future of Automation
- Reconstruction of 110 kV Switchyard at 400/220/110 kV Substation Maritsa-iztok – successfully completed
- EL KONTROL has completed the first Sub-project for reconstruction of the street lighting in Stara Zagora Municipality
- EL KONTROL has been recognized with the ABB Channel Partner Award
- Builder of the Year for 2019
- 20 years EL KONTROL
- Stara Zagora shines in Christmas decoration
- The SIRIUS Demo-truck is visiting Stara Zagora
- RITTAL Demo-Bus is visiting EL KONTROL
- EL KONTROL has started Design and construction of two complete transformer stations to supply charging stations, design and construction of cable routes to charging stations
- We completed rehabilitation of 110 kV Switchyard in 400/220/110/31.5 kV S/st Plovdiv
- NOARK PRESENTATION
- BUILDER OF THE YEAR AWARD
- Christmas spirit in Stara Zagora
- We completed the project for construction of charging stations for electric buses in Stara Zagora
- Bavarian delegation visited EL КONTROL
- EL KONTROL IS BUILDER OF THE YEAR 2023
- Since 2023, we have become a SIEMENS Technology Partner for SIVACON S8 type-tested panels, and a VAR partner for NXAIR Switchgear
- Next level up for students in Electrical Engineering
- Round Table on "The Voice of the Bulgarian Electrical Industry"
- Team building 25 years EL KONTROL
- SIEMENS Technology Partner
- A Certificate of Recognition by Siemens
- Reception at the Consulate General of the Republic of Bulgaria in Munich
- EL KONTROL invests 6 million BGN in a new production facility
- Memorandum of long-term cooperation between EL kONTROL and SIEMENS Energy
- Internship programs and Scholarship
- Internships exhibitions 2025
- Memorandum pf Understanding with Westinghouse Electric Company
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