DC power equipment
DC boards
DC boards are designed to provide a guaranteed supply of DC electrical energy with a voltage of up to 500 V of critical systems (control, protection, automation and emergency) at energy and industrial facilities.
DC boards, depending on the configuration, may include the following main components:
- incoming switching and distribution unit that provides power input from batteries and rectifiers;
- switchgear for supplying outgoing lines;
- measuring devices;
- a system for monitoring and transmitting information to the process control system;
- automatic feeders insulation monitoring system;
- rectifiers;
- battery;
- DC/DC converters and inverters.
Corporation "ELCOR" produces DC boards in the following versions:
- operating current cabinets with rectifiers and a VRLA battery installed inside;
- direct current boards for connection to free-standing rectifiers and high-capacity stationary batteries.
We also offer complex deliveries of operational direct current systems (OSCS), including stand-alone rectifiers and stationary batteries of the world’s leading brands.
Applied equipment
Metal structure:
- Schneider Electric (Spacial);
- Rittal;
- domestic production with powder coating.
Switching devices:
- Schneider Electric (circuit breakers and load switches);
- LS Electric (circuit breakers);
- ABB (circuit breakers);
- OEZ (load break switches with fuses);
- SOCOMEC (load breakers and switches).
Logic controllers and components of monitoring systems:
- Schneider Electric;
- Phoenix Contact;
- ICP DAS;
- TONHE.
Insulation monitoring systems:
- Schneider Electric;
- Bender;
- APS Energy;
- TONHE.
Rectifiers, DC/DC converters and inverters:
- Benning;
- APS Energy;
- ELTEK;
- TONHE.
Stand-alone rectifiers
We offer stand-alone cabinets with rectifiers (for charging and recharging batteries) both of our own production and those of the following leading brands:
- Benning;
- APS Energy;
- Gutor.
Rechargeable batteries
We offer stationary VRLA batteries and classic low-maintenance vented lead-acid batteries from the following manufacturers:
- Exide Technologies;
- Hoppecke;
- bae.
Specifications and standards
- TU U 31.2-30287744-051:2014: Low-voltage switchgear and controlgear assemblies for power stations and substations.
- TU U 31.2-05393317-203:2007: DC boards for nuclear power plants.
- TU U 31.2-30287744-205:2013: Rectifiers for stationary batteries of nuclear power plants.
Technical characteristics of DC boards
| Name of parameter/technical specification | Parameter value/execution options |
|---|---|
| Rated DC voltage, V | up to 500 |
| Rated current, A | up to 5000 |
| Type of internal separation according to IEC 60439-1 | up to 4b |
| Busbar material | copper |
| Steel structure material | sheet steel with powder coating |
| Degree of protection according to IEC 60529 | up to IP54 |
| Climatic implementation | У, УХЛ, Т, ТВ |
| Seismic resistance, points on the MSK-64 scale | up to 9 |