If there is phase inversion or phase rotation at the remote 2 station as shown in Figure 8-10, the resulting Differ-
ential Current that will be displayed at all stations will be approximately double the current at remote 2, or about
6 amps.
Station A
Station B
Communication
Channels
RFL 9300
Three
Terminal
RFL 9300
Three
Terminal
Local
Remote 1
2 Am
s
5 Amps
RFL 9300
Three
Terminal
Station C
Remote 2
3 Amps
Phase input to
remote 2 relay
inverted
Figure 8-10. Phase inversion at remote 2
RFL 9300 RFL Electronics Inc.
October 20, 2004 8 - 34 (973) 334-3100