Description
ANSI No. Function P441 P442
21G Ground distance • •
21P Phase distance • •
85 Channel aided protection • •
50/51/67 Directional/non directional phase overcurrent • •
50N/51N/ Directional/non directional earth fault • •
67N
46/67 Directional/non directional negative sequence overcurrent • •
50/27 Switch on to fault (SOTF) and trip on reclose • •
51FF Fuse failure overcurrent• •
78 Power swing detection • •
50BF CB Failure • •
46BC Broken conductor detection • •
27/59 Under/over voltage • •
VT supervision • •
CT supervision • •
CB control • •
CB condition monitoring • •
4 setting groups • •
25 Check synchroniser • •
79 3 pole auto reclose •
79 Single/3 pole auto reclose •
8 Logic inputs and 14 relay outputs •
16 Logic inputs and 21 relay outputs •
