About us
Manufacture of electrical power equipment up to 35 kV. The company is the successor of the High-Voltage Apparatus Works founded in 1965 and has established itself as a correct, committed and responsible partner to its clients.
The product range
- switchgear assemblies with minimum-oil, SF₆ and vacuum circuit breakers, 7.2, 12, 24 kV;
- packaged transformer substations (MKTP and BKTP) for 7.2, 12 and 24 kV with ABB, Siemens and Schneider apparatus;
- concrete packaged substations (BKTP) for wind farms;
- minimum-oil circuit breakers of types A and AK for 7.2, 12 and 24 kV;
- current and voltage instrument transformers for 0.75, 7.2, 12 and 24 kV;
- high-power fuses type VPm for 7.2, 12 and 24 kV;
- epoxy insulators for 0.66, 7.2, 12 and 24 kV;
- low-voltage switchboards, 0.4 kV;
- trolleys with SF₆ and vacuum breakers.
All products, with technical data
The site
The company has its own production and warehouse site. The site covers 19,000 m², of which 5,000 m² are built up. The machinery allows the complete manufacture and fitting-out of the products and their delivery to the client.
The main production building holds the blanking and machining sections and the assembly section. A separate room for electrostatic powder coating is equipped with a specialised Wagner installation.
ZAVN-Dobrich AD has the only installations in the country for pressure casting of epoxy parts (Vimex-Vet) and for vacuum casting of instrument transformers (Micafil). That makes the company the only manufacturer of epoxy insulators, special epoxy parts and instrument transformers up to 35 kV in Bulgaria.
The people
The team consists of specialists and workers: management, engineering and technical staff and production staff. Their task is to meet the ever higher quality requirements that the company's partners set.
A human-resources management system integrates the personal goals of every specialist and worker with the company's business strategy. It has grown into good in-house practice that guarantees high quality in the company's demanding projects. A well-developed senior management is the reason for the company's dynamic growth in recent years.
Quality
Being present on the home and international markets requires products that meet the needs and expectations of clients. To stay competitive and keep good economic results, ZAVN-Dobrich AD has introduced and maintains an effective quality management system based on the international standard ISO 9001:2008.
The human, material and financial resources needed for the processes to work, and to be monitored and measured continuously, are in place. The processes are monitored, measured and analysed at suitable stages, and when a deviation from the requirements is found, corrective and preventive action is taken promptly. That is how the quality system improves continuously.
The certificate and the type approvals
The clients
Our clients are power generation, transmission and distribution companies, the communications sector, and firms in electrical installation, construction and trade. Important clients are foreign investors and general contractors of major sites, Bulgarian small and medium-sized investors, businesses and public associations.
Companies such as Kozloduy NPP, Enemona Holding, Interkomplex OOD, Elsnab AD, Elektra-94 OOD, Mobiltel EAD, Atomenergoremont EAD, Maritsa 3 TPP, EON, EVN and CEZ, through their distribution companies in Bulgaria, and many others have trusted us.
We aim to meet their wishes and understand their specific needs: products of the highest quality, excellent service, fast and reliable delivery and competitive prices. Trust, honesty and open human relations are the basis of our communication with them.
