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How can we troubleshoot the transformer gas relay changeover faulty condition ? Transformer is not yet installed/charged. In Marshaling box status of contact is NC instead of NO?

Substation Automation
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Question added by sivakumar gvss gorle , Project Engineer
Date Posted: 2016/06/19
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Pradeep Kumar Anbalagan
by Pradeep Kumar Anbalagan , Sr. Estimation Engineer , Texas Powertech WLL

It may due to the flag is in active condition at relay. Just reset the flag position at relay.

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