Synchro Check Relay

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Anonymous Poster	Synchro Check Relay 01/12/2011 1:33 PM
	Can anyone suggest the recommended setting to be done in a check synchro relay which is used for bus transfer scheme in a PMCC.
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PeterT Guru Join Date: May 2010 Location: Liverpool, NY Posts: 961 Good Answers: 131	#1 Re: Synchro Check Relay 01/12/2011 1:44 PM
	There is no single "recommended" setting possible without knowing your system and what you are trying to accomplish. Are you trying to synchronize 2 energized buses, or only close the breaker when one is dead? How much voltage difference can your equipment tolerate? Is there any generation, so that frequency could be different between the 2 sources? Is there appreciable phase angle difference possible? All these need to be taken into account. You should have a professional engineer with experience in this area determine the settings based on this information. __________________ To get the right answers, first you need to ask the right questions.
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msamad Guru Join Date: Feb 2009 Location: Houston, USA Posts: 946 Good Answers: 244	#2 Re: Synchro Check Relay 01/12/2011 9:09 PM
	PeterT already provided the hints. Here is the link of some synchro check relay that may he also helpful: http://www05.abb.com/global/scot/scot313.nsf/veritydisplay/7e1a4277c4e73e3cc1257523006058da/$File/RK862-302E_en_RASC_Synchro-check_relay.pdf http://www.precisioncontrols.co.uk/assets/downloads/basler/BE1-25-Product-Bulletin.pdf http://www.hmutest.co.uk/icseng/Manuals/Manuals/ABB%20Relays%20&%20Switchgear/SPCU3D45.pdf - 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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PeterT Guru Join Date: May 2010 Location: Liverpool, NY Posts: 961 Good Answers: 131	#3 In reply to #2 Re: Synchro Check Relay 01/13/2011 8:18 AM
	Those are good examples. If the OP has some understanding of his system and needs, he may be able to determine his settings from them. I do agree with your "signature" - we are only giving informed opinion and suggestions from experience/training. The OPs must take responsibility for having a technically correct solution. __________________ To get the right answers, first you need to ask the right questions.
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