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amitabha0107
Power-User

Join Date: Feb 2011
Location: Shimurali, Westbengal,India
Posts: 119

Synchro Check

08/08/2011 1:36 PM

what are the steps of synchro check for transmission line connected to grid?
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msamad
Guru

Join Date: Feb 2009
Location: Houston, USA
Posts: 946
Good Answers: 244
#1

Re: Synchro Check

08/09/2011 8:01 PM

The synch-check relay determines the condition of synchronization of the both side of the feeders and take the decision to allow closing the breaker. A synch-check relay first checks the voltage difference, frequency difference and the phase angle between the both side of the feeder. If these values are within the pre-setting values of the relay, the synch-check relay allows closing the breaker, otherwise it prevents the closing.

This thread also may help:

http://cr4.globalspec.com/thread/64672/Synchro-Check-Relay

- MS

__________________
 "All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
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