GE P442 - Permissive Overreach Schemes Weak Infeed (WI) Features; Zone 1 Ext. on Channel Fail

Application Notes
P44x/EN AP/Hb
6
MiCOM P40 Agile P442, P444
(AP) 5-
67
Figure 42: Switch on to fault and trip on reclose logic diagram
3.2.8 Zone 1 Ext. on Channel Fail
See section 3.1.
3.2.9 Permissive Overreach Schemes Weak Infeed (WI) Features
Weak Infeed (WI) logic can be enabled to run in parallel with all the permissive schemes.
Two options are available: WI Echo, and WI Tripping.