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Anonymous Poster

Electromechanical Relay on SCADA

03/12/2010 12:46 AM

How can i give status of relay to control centre electromechanical old type it is possible or not (or it require contact multiplyers)

it is easy for NR relay for fiber or RS232/485 on IEC s and SPA bus but what abt old relay.
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PWSlack
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#1

Re: electromechanical relay on SCADA

03/12/2010 2:58 AM

Two ways.

Either send the output to the relay to a SCADA point, indicating that the relay is energised, or take an input from one of the relay contacts to say that it has changed state.

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Anonymous Poster
#2
In reply to #1

Re: electromechanical relay on SCADA

03/12/2010 4:43 AM

Thanks for answer ...................

if the relay having two feature that is Over current and Earth fault....

so how come the Control centre people came to know feeder is tripped by OC only but it is actually trip by Earth fault.

if posiible plz guide me....
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
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#3
In reply to #2

Re: electromechanical relay on SCADA

03/12/2010 5:08 AM

There are two inputs to SCADA. One is for overcurrent and the other is for earth fault. Discuss the inputs with the SCADA maintainers.

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Steve Melito
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#4
In reply to #3

Re: electromechanical relay on SCADA

03/12/2010 8:59 AM

And come back and register with the site, Guest! By registering with CR4, you can be notified automatically whenever someone replies to your question.
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