DC Distribution Panel

The DC panel provides uninterrupted power supply to control circuits, relay protection, automation, and signaling systems at electrical stations/substations during grid outages by automatically switching to backup battery power. When main power is restored, it automatically charges batteries while simultaneously powering loads. Designed for industrial environments.

Technical Specifications:

  • Input Voltage/Frequency: 380/220V, 50Hz;
  • Main Circuit Insulation Voltage: 500V;
  • Auxiliary Circuit Insulation Voltage: 500V;
  • Charger Output Voltage: 220V; 
  • Current Type: Direct current;
  • Charger Type: PBI MC;
  • Charger Output Current: 2x20А;
  • Charger Redundancy: 2 parallel units with hot-swappable;    
  • Battery Capacity:  60A/h;
  • Feeder Auto-Disconnect (Quantity): 20 pieces;
  • Insulation Monitoring: PBI MC;
  • Flashing Light Device: Switching pulse-pair D-28;
  • Instruments: Мoltmeter, ammeter;
  • Protection Rating: IP 31;
  • Communication Protocol: Via RS485 interface: Mobilus RTU / IEC60870-5-103 / APS6000.

Functional Composition:

  • ATS power circuits;
  • Battery charge/discharge & DC distribution circuits;
  • Flashing bus circuits;
  • Alarm circuits;
  • Voltage/current monitoring circuits.

Structural Composition:

  • Charger Panel;
  • Distribution Panel;
  • Battery Panel.

Key Functions:

  • DC power distribution for auxiliary systems;
  • Power supply via rectifiers/batteries during outages;
  • Personnel safety protection;
  • Overvoltage protection for distribution buses;
  • Secondary circuit protection;
  • Protection device status monitoring;
  • Parameter deviation alarms;
  • LED status/event indicators;
  • Continuous DC insulation resistance monitoring; 
  • SCADA integration for system status.

Structure:

The device consists of a frame metal structure covered with powder paint to prevent the appearance of corrosion, with a partition in form 1. For access to the shield from the front side there are doors that are locked by a key. In the lower part of the body of the device, a PE grounding bus is installed. The cable entry and connection is carried out in the upper part of the shield.  The device fully meets the requirements of standard RT RC GOST P 51321.1-2010 (IEC 60439-1-92).

Common characteristics:

  • Construction of the body: Foor;
  • Color: RAL 7035;
  • Accession entry: from below, from above;
  • Degree of protection: IP 54;  
  • Seismic resistance according to MSK-64 scale: from 6 to 9 points;
  • Method of service: Unilateral decision / Bilateral agreement;
  • Number of modules for charging and rectifying devices: to 4 units;
  • Battery capacity: to 190A/h.