Circuit Heating Switch Supply Cabinet

 

The cabinet is designed for distribution of alternating current heating of the switch and power supply of the switching coil and for outdoor installation on open distribution devices of power plants and substations. The equipment is designed for use in an industrial atmosphere and has a protective coating that ensures long-term operation under the influence of climatic factors of external environment. 

The switch cabinet can be used for:

  • heating of circuit breakers and their drives;
  • power supply of motor actuators, circuit breakers and disconnectors.

The device functionally consists of:

  • AC distribution circuits;
  • heating and lighting circuits.

Overall dimensions of the device:

  • height 1400 mm;
  • width 600 mm;
  • depth 270 mm;
  • the mass of the device is not more than 50 kg. 
Technical characteristics:
 
Characteristic  Value
View, frequency current
AC, 50Hz
Rated current 
250А
Rated working voltage of main circuit
380V, AC
Rated auxiliary circuit voltage
220V AC, 50Hz
Rated main circuit insulation voltage
500V
Rated auxiliary circuit insulation voltage
500V
Full shut-off current of waste vending machines 
Icu=6kА
Degree of protection
IP54
Grounding system 
TN-S
Type of internal separation
1
Type of electrical connections of functional units FFF

Design of the circuit-breaker heating cabinet:

The device consists of a solid metal steel body with a partition in shape 1. The door is fitted with a lockable lock.