Answer / kiran h mehta

The trip circuit supervision relay is used to monitor
tripping circuit healthyness.It confirms that the breaker
will trip in case of fault on the operation of relay on it.
The circuit is wired through resister and a tripping coil .
Shortly is called as TCSR.It has three coils in it one of
it is flag relay and if trip coil opens , flag indicate
unhealthyness of the tripping circuit.

As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

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