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#1 MMZaman

MMZaman

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Posted 05 May 2010 - 11:20 AM

I had used two current transformer to read phase to phase current to a digital multimeter.
This was used in a motor control panel. The CTs were located between main circuit braker and soft starter.
The motor had in-line soft starter. As per the site, the electric motor had a grounded winding when the CT burnt.

Can anyone tell me what went wrong?
It is confirmed that secondary of the CT was connected to the digital multimeter and it was working OK.







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