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Earth fault current in converter

07/04/2008 11:08 PM

how to measure earth fault current in DC converter drive ?
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Sparkstation
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New Zealand - Member - Interested in everything- see my Profile please Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

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#1

Re: Earth fault current in converter

07/05/2008 2:18 AM

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....

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Divyesh patel
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#2
In reply to #1

Re: Earth fault current in converter

07/07/2008 11:08 PM

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
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