Operation
 DANGER |
|---|
|
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Ensure that the circuit breaker connected to the transformer
must only be operated when the transformer is in a no load condition.
Failure to follow these instructions will result in death or serious injury.
|
The Ringmaster AirSeT circuit breaker is rated for fault breaking in accordance with IEC 62271-100 and for load current breaking in accordance with IEC 62271-103. However, if inductive loads, including loaded transformers, motors or shunt reactors are to be switched with the Ringmaster AirSeT circuit breaker, then it is recommended that overvoltage protection should be applied to help protect the load against switching overvoltages.
It is recommended that transformers should be switched in a no-load condition to minimize the magnitude of switching overvoltages which could potentially damage the transformer primary winding.
For more information on dimensioning and specifying overvoltage protection contact Schneider Electric.
Prior to Energizing
It is recommended that prior to energizing the unit, all protection devices are checked to help ensure they are set correctly. For TLF units, help ensure fuses are fitted. VIP protection relays must be set in accordance with the results of a protection co-ordination study.