AC cabinet (alternating current)

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The cabinet is the intermediate element of the current distribution between the disconnectors and supply elements of the substation. Designed to heat and power the actuators of switches and disconnectors. Is a cabinet with input and output automatic circuit breakers. Is a cabinet with input and output automatic circuit breakers. 

The AC cabinet functionally consists of:

  • AC distribution circuits;
  • heating and lighting circuits.
Function:
  • to heat and power the circuit breakers and disconnectors;
  • take electrical energy for its own AC needs from two independent sources and distribute it to consumers.

The AC cabinet can also be part of an automated control system (ACS), allowing you to control various technological processes in production without involving employees.

 

Technical characteristics:
 

Type of current, its frequency

AC, 50Hz

Rated current

25A/32A/50A

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 

Anticondensation device diagram

 HG 140 series 55W

Degree of protection

 IP55 

Grounding system

TN-S

Type of internal separation

 1

Type of electrical connections of functional units

FFF

 

Cabinet design:

The device is a single metal welded body with a partition in shape 1. On the back wall of the body there are metal guides, to which the equipment of the cabinet is attached. There is a lockable lock on the door. 

Overall dimensions of the device:

  • height 1200 mm;
  • width 600 mm;
  • depth 270 mm;
  • the mass of the device is not more than 60 kg.