Marshalling Box

 
 
Marshalling Box

As the name implies, this is the master control panel for the protection devices. This is a panel with a door, part of which is with glass, allowing easy visibility of the instruments and their readings. This houses the indicating instruments. In addition, all the secondary wiring of the transformer from current transformers, relays, oil level gauges etc., are terminated on to terminal blocks, from which cables can be taken to the supply and control connections. The necessary control switches, contactors etc., are housed in this cabinet. The cabinet may be provided with heating and anti-condensation facility. The cabinet has a ventilation facility, which is protected against insect entry. The fixing is carried out with anti-vibration pads.