SEL-421 and LOP
SEL-421 and LOP
(OP)
If you set LOP option to 'N', (which operates LOP logic but doesn't disable any of the voltage polarized directional elements, distances elements, and forward direction overcurrent elements) does your ground overcurrent protection which is toqued with F32QG become non-directional or will it just never operate? With the Y option for LOP, it explicitly states that forward directional overcurrent elements become non-directional but it just says that the elements with option 'N' are not disabled.






RE: SEL-421 and LOP