Info required for VDG relay
Info required for VDG relay
(OP)
Hi,
I have to interpret the test results of a VDG13 undervoltage relay and would like to know:
1) Does it operate on a Very Inverse curve like a CDG13 relay?
2) If so, how does the formula differs from 13.5*TM/(PSM-1)?
3) If not, what curve does it operate on?
Waldo
I have to interpret the test results of a VDG13 undervoltage relay and would like to know:
1) Does it operate on a Very Inverse curve like a CDG13 relay?
2) If so, how does the formula differs from 13.5*TM/(PSM-1)?
3) If not, what curve does it operate on?
Waldo





RE: Info required for VDG relay
You should contact ALSTOM for a copy of the publication, it contains the curve it uses.
Also, you should be made aware that the formula you have stated is not correct for a CDG13. This formula is used for Electronic relays like the MCGG.
RE: Info required for VDG relay