г. Москва, пр. Берёзовой Рощи, д. 4 Nuclear energy facilities
At Voltag LLC, we manufacture guaranteed power supply systems for DC and AC, consisting of semiconductor converters and auxiliary units and modules, including battery banks and distribution devices.
The produced charging-rectifying devices and operating current cabinets, voltage inverters, systems and uninterruptible power supply units serve to provide electrical energy of specified quality to consumers of the first, second, and third power supply categories, both AC and/or DC, in case of disconnection or degradation of the incoming power source, as well as to improve the load power source quality by maintaining its characteristics within customer-defined limits.
At nuclear energy facilities, DC and AC guaranteed power supply systems are classified as reliable electrical supply systems for normal operation (RES NO) and/or emergency power supply systems (EPS), with the main electricity consumers of such systems being equipment classified by impact on safety as class 2, 3, and/or 4. Power disruption to these consumers may trigger events leading to accidents, and system failures may pose risks to human life and health and cause significant damage to the national economy.
The produced charging-rectifying devices and operating current cabinets, voltage inverters, systems and uninterruptible power supply units serve to provide electrical energy of specified quality to consumers of the first, second, and third power supply categories, both AC and/or DC, in case of disconnection or degradation of the incoming power source, as well as to improve the load power source quality by maintaining its characteristics within customer-defined limits.
At nuclear energy facilities, DC and AC guaranteed power supply systems are classified as reliable electrical supply systems for normal operation (RES NO) and/or emergency power supply systems (EPS), with the main electricity consumers of such systems being equipment classified by impact on safety as class 2, 3, and/or 4. Power disruption to these consumers may trigger events leading to accidents, and system failures may pose risks to human life and health and cause significant damage to the national economy.
Requirements for equipment at nuclear energy facilities
- High resistance to mechanical environmental factors (M6, M13, M38, etc.).
- High seismic resistance up to 9 points on the MSK-64 scale, compliance with NP-031 requirements for I, II, or III seismic resistance categories.
- Strong resistance to ambient temperature changes during operation, from upper to lower values and back.
- Compliance with GOST 32137 for electromagnetic compatibility of technical means at nuclear power plants, including requirements for immunity to electromagnetic interference and emission limits.
- High reliability and probability of failure-free operation, increased mean time to failure and service life.
- Extended set of design, operating, and maintenance documentation.
- Conformity assessment according to federal norms and rules in nuclear energy NP-071 through technical documentation expertise under GOST R 50.03.01, testing under GOST R 50.04.08, acceptance under GOST R 50.06.01, and decisions on imported components under GOST R 50.07.01.
Our solution
- Forced cooling using variable-speed fans with N+1 redundancy, hot-swappable fans for uninterrupted and safe system operation.
- Transistor discharge control units (DCUs) enabling battery testing in controlled discharge mode by DC rectifier or constant power with energy recovery to the grid.
- Option to manufacture thyristor DCUs with natural cooling.
- Increased input power factor via additional THD filters.
- Short recovery time using a spare parts kit.
- High maintainability and access to parts requiring calibration, adjustment, and tuning.
- Equipment manufacturing in accordance with federal nuclear standards NP-001-15 and NP-033-11.
- Implementation of a production quality management system under GOST R ISO 9001, GOST R ISO 19443, and NP-090 requirements.
- Preparation of design, operational, and maintenance documentation according to ESKD and Rosatom sectoral requirements.
Certificates and licenses
- Voltag LLC has been active in the nuclear energy sector since 2024, holding the necessary certificates and licenses for the design and manufacture of equipment assigned to safety classes 2 and 3 under federal standards.
- Design license for nuclear installations: UO-11-101-3420, dated 15.07.2024.
- Manufacturing license for nuclear installations: UO-11-101-3425, dated 19.07.2024.
- Rosatomregisstr certification system certificate, RAR.0512.RR, dated 29.01.2025, confirming the quality management system for design, manufacture, testing, implementation, and supply of low voltage equipment (OKPD2: 27.12.31.00), as well as DC and AC uninterruptible power systems (OKPD2: 27.11.50.120 and 26.20.40.110).
The strengths of the service
Access to algorithms and software
Technical support from the development department
Availability at warehouse
Of spare parts and components for repairs and scheduled maintenance
Qualified staff
Locations – Ekaterinburg, Moscow, St.Petersburg
Employees work in our company
200+
Staff
Scientific supervisor
Candidate of Technical Sciences, Associate Professor of the Department of Industrial Electronics
Higher technical education
Most of our staff have it.
A team of qualified
employees with many years of industry experience
