Earth fault current in converter

Hello Guest,

There may well be a fault to earth in the Primary side of a DC converter, if the Input Voltage is supplied from Mains Electricity.

Any such fault should be detected by safety relays connected in the Supply Mains, and/or in the Inverter control circuitry.

Secondary (Output) of DC converters are always non-Earthed, ( = Isolated from Earth Connection), to prevent damage to connected equipment, the Inverter, and/or persons.

Kind Regards....

Thanks for your reply but my actual question is related to how to detect earth fault current in DC, i have heard about resistance centering but how it works i don't know can u help me out to find it ?

regards

divyesh patel

Bombardier Transportation