Breaker timing tests
Breaker timing tests
(OP)
hi,
I am doing a Timing tsts for 11 Kv breaker,Close time is 50ms,open time is 30ms and close to open time is 40ms,Actually what close-open time mentions which duration.The equipment is SCOPE Make.
I am doing a Timing tsts for 11 Kv breaker,Close time is 50ms,open time is 30ms and close to open time is 40ms,Actually what close-open time mentions which duration.The equipment is SCOPE Make.






RE: Breaker timing tests
RE: Breaker timing tests
I cant able to understand can u explain in detil.
RE: Breaker timing tests
Please write in actual English, not cell phone text speak.
RE: Breaker timing tests
RE: Breaker timing tests
In this kind of test, assuming that the time starts counting exactly when you issue the close command, and that the Trip command is issued exactly when you get the fist contact closed, you should be getting the time between the close order and the actual closing, and then the time between the issue of your trip order and the actual opening of your CB.
You can also have the total time that your CB take to perform the whole C-O operation, which is measured between the issue of the Close order and the opening of the first contact.
Under these premises, please clarify which time is the 40 ms that you mention in your post. After that we may be able to help
Eduardo Marchesi
www.eurosmc.com
RE: Breaker timing tests
Find the attachment of the report of the Circuit breaker.
RE: Breaker timing tests
find the report o0f CB attached.
RE: Breaker timing tests
I have attached a file of the GCB close open operation. For this GCB the manufacture take the time between when the NO contact close and opening of the main contact as OPEN CLOSE time. Which is a bit lesser than normal CLOSE OPEN time.
maybe somebody can help.
Thanks.
RE: Breaker timing tests
After seeing the report you sent, I confess myself unable to help. I do not know what times you are measuring, as I do not understand what TC-1, TC-2 and TC-3 means. My best suggestion is that you contact the test set manufacturer and ask him about how to read their reports.
However, it is very difficult to understand a CB behaviour without a printed graphical representation as you are dealing with so many signals. Bdf5526 sent a typical graph. I think that will help you to understand your need.
Eduardo Marchesi
www.eurosmc.com