If there is phase inversion or phase rotation at the local station as shown in Figure 8-12, the resulting Differen-
tial Current that will be displayed at all stations will be approximately double the current at the local station or
about 4 amps.
3 Amps
Remote 2
Station A
Station B
Communication
Channels
2 Am
s
5 Amps
RFL 9300
Three
Terminal
RFL 9300
Three
Terminal
Local
Remote 1
Phase input
to local relay
inverted
Station C
RFL 9300
Three
Terminal
Figure 8-12. Phase inversion at local station
RFL 9300 RFL Electronics Inc.
October 20, 2004 8 - 36 (973) 334-3100