LMVC Motor Starter Panel
The fixed metal-clad Enclosure comprises:
+ A Control Cubicle in which the low voltage relays and instruments are fitted.
+ A busbar chamber that supports one three-phase set of insulated high conductivity Copper busbars that through the length of the switchboard.
+ A Current Transformer chamber from where the Measurement and Protection devices get their inputs.
+ A Cable Box from which Power Cables are connected to the Motor. In some applications Surge Arresters are fitted inorder to protect the motor from excessive switching surges
+ A Voltage Transformer and its Housing may be incorporated so as to engage with the Circuit (Cable) or Busbars.
+ A Circuit Breaker chamber into which the withdrawable part engages.
+ A busbar chamber that supports one three-phase set of insulated high conductivity Copper busbars that through the length of the switchboard.
+ A Current Transformer chamber from where the Measurement and Protection devices get their inputs.
+ A Cable Box from which Power Cables are connected to the Motor. In some applications Surge Arresters are fitted inorder to protect the motor from excessive switching surges
+ A Voltage Transformer and its Housing may be incorporated so as to engage with the Circuit (Cable) or Busbars.
+ A Circuit Breaker chamber into which the withdrawable part engages.
The withdrawable Carriage contains a Vacuum Contactor. The Contactor differs from the Circuit Breaker by the large number of mechanical operations it is capable of performing. However, the Contactor is unable to make, break or carry very high fault currents as a Circuit Breaker can. The Carriage, therefore also contains a set of Power Fuses which protect the Contactor in case of a major fault.
In some designs an auxiliary transformer can be fitted on the Carriage to provide power for the operation of the Contactor.
Motor Starter Panel consists of a Fixed part and a Withdrawable part.
