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Hello all!
I´m working on a C434 application where it´s necessary to test a ANSI 25 function. In this particular application (breaker and a half topology) I don´t have the "Vref" voltage input available, so I´m activating the Meas V. (T9x) USER option in order to use the neutral voltage displacement input to synchronize with the three-phase voltage. It works perfectly for voltage synchronism, but it ignores the angle difference (It allows a close command with angle difference). Do you guys know what may be possibly happening? Below I took a screenshot of the configuration (including the setting for voltage and sync enable):
Thanks in advance!
Best Regards.
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C434 with 2 CT/VT boards offers ASC comparing voltage parameters on 4th VT between both CT/VT boards (T91 & T92).
I guess you expect to have ASC comparing phase B-G voltage at T16 and T91, this wouldn't work.
(details on T91, T92, T16 you may find in C434 Manual)
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