Inverse definite time relay
Inverse definite time relay
(OP)
What is a inverse definite time relay? How does it work?
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Inverse definite time relay
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RE: Inverse definite time relay
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RE: Inverse definite time relay
Take a look at the ABB CO relay instruction manual. You can see how the relay works and the difference between the CO6 Definite time curves and the CO8 Inverse time curves.
http://www05.abb.com/global/scot/scot229.nsf/veritydisplay/913b92760e5ed74085256eac00564bc3/$file/41-103h.pdf
RE: Inverse definite time relay
Inverse definite minimum time relay - a European term? Plenty hits on Google, although I doubt you will learn much if you understand how an 'inverse time relay' from your patch works.
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If we learn from our mistakes I'm getting a great education!
RE: Inverse definite time relay
Rafiq Bulsara
http://www.srengineersct.com
RE: Inverse definite time relay
In other words if you have to ask that question, close the cabinet door and walk away slowly, then call someone who knows what they are doing...
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RE: Inverse definite time relay
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(2B)+(2B)' ?
RE: Inverse definite time relay
LPS.
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If we learn from our mistakes I'm getting a great education!
RE: Inverse definite time relay
RE: Inverse definite time relay
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If we learn from our mistakes I'm getting a great education!
RE: Inverse definite time relay
"In this type of delay the latest practice is obtained by having the protective relay give a time delay which is inversely proportional to the magnitude of the overload up to about 1,000 per cent of load, but which becomes a definite time limit upon any greater overload than this."
Relays available from (it)micro, for example: http://www.itmikro.com/catalog/mk204a.pdf
Looks very much like an ordinary inverse time relay.