Distance relay specifications
Distance relay specifications
(OP)
Dear Sirs,
Could you please explain the meaning of a feature called "DEF plain and Blocking modes" in distance relays?
Thanks in advance for your help.
Regards,
Charlie
Could you please explain the meaning of a feature called "DEF plain and Blocking modes" in distance relays?
Thanks in advance for your help.
Regards,
Charlie






RE: Distance relay specifications
DEF is directional earth fault, 67N.
usually this function is included two possibilities of operation: blocking or permit scheme/mode.
standard in lot of distance relays ( I think in all :) ).