Application manual
Local HMI................................................................................................77
Display...............................................................................................77
LEDs..................................................................................................79
Keypad.............................................................................................. 80
Protection and alarm indication.................................................... 82
Front communication.................................................................... 83
Section 6 Current protection................................................................87
Instantaneous phase overcurrent protection 3-phase output
PHPIOC (50)...........................................................................................87
Identification...................................................................................... 87
Application......................................................................................... 87
Setting guidelines.............................................................................. 88
Meshed network without parallel line............................................88
Four step phase overcurrent protection 3-phase output OC4PTOC
(51/67).................................................................................................... 92
Identification...................................................................................... 92
Application......................................................................................... 92
Setting guidelines.............................................................................. 93
Identification.................................................................................... 102
Application....................................................................................... 102
Setting guidelines............................................................................ 102
Four step residual overcurrent protection, zero, negative sequence
direction EF4PTOC (51N/67N)............................................................. 106
Identification.................................................................................... 106
Application....................................................................................... 106
Setting guidelines............................................................................ 108
Line application example1.......................................................... 112
Sensitive directional residual overcurrent and power protection
SDEPSDE (67N)...................................................................................118
Identification.................................................................................... 118
Table of contents
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