If there is a phase inversion at the local relay, the resulting differential current indicated at both stations will be
approximately double the current, or about four amps. This can be seen in Figure 8-8.
RFL 9300 RFL Electronics Inc.
October 20, 2004 8 - 32 (973) 334-3100
Station A
Station B
2 Am
s
2 Amps
RFL 9300
Two
Terminal
RFL 9300
Two
Terminal
Communications Channel
Local Remote
Phase input to
local relay
inverted
1
Figure 8-8. Phase inversion at local relay