Fault Clearing Time
Fault Clearing Time
(OP)
I have a new project on the technical review stage. Basically, this project has a single turbine generator is running a parallel with grid. But, the grid owner requested to clear a generator fault with 1/4 of cycle if there is a fault. If we could not do this, then the project is dead. So, does any body know any protective relay and generator circuit breaker out there that can achieve this requirement? The other solution is to get an inductive generator with 4160V, 1.7MW, but I could not find any manufacturer can make this kind of induction generator. Does any body know any manufacturer out there?
Thank you for your help!
Thank you for your help!





RE: Fault Clearing Time
Anything faster than this will require something fairly exotic. A G&W CLip might be able to satisfy the grid's ridiculous requirement:
http://www.gwelec.com/pdfs/Clip/CLiP2010_web.pdf
Is is possible that someone is misinterpreting something? This is a very odd requirement.
David Castor
www.cvoes.com
RE: Fault Clearing Time
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If we learn from our mistakes I'm getting a great education!
RE: Fault Clearing Time
http://www.thycon.com.au/ssb_concept.shtml
RE: Fault Clearing Time
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If we learn from our mistakes I'm getting a great education!
RE: Fault Clearing Time
RE: Fault Clearing Time
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I think the modern Is limiter is not provided with fuse as the older models and you don't need to replace the fuse. We used such a breaker to protect a synchronous compensator of 60 MVAR and the only boredom was to replace the fuse after the short-circuit.
RE: Fault Clearing Time
I haven't used this kind of application before. So, you are saying if I include an Is limiter as shown on slide 16 of 27 in the switchgear panel, then it will clear the fault within 5-10ms? This Is limiter will take the responsibility to clear the current fault by open itself to isolate the generator before the protective relay sends a signal to trip generator circuit breaker right? Would you please explain a little bit in more details since I am new with this application?
Thanks for your help again!
RE: Fault Clearing Time
Second, for your application will be better to contact ABB for more details.
See:
http://w