ABB PMA - Figure 12: Internal Schematic of the Type PM-4 Auxiliary Unit in the small molded case.; Figure 13: Internal Schematic of the Type PM-5 Ground Detector Relay in the FT-11 case.

41-973.5R
20
Type PM Line of Relays For Pilot Wire Monitoring
And Transferred Tripping
Figure 12: Internal Schematic of the Type PM-4 Auxiliary Unit in the small
molded case.
Figure 13: Internal Schematic of the Type PM-5 Ground Detector Relay in the
FT-11 case.
Sub 7 2D1845
Sub 2 184A501
POS
.
POS
.
WITH EQUAL CURRENT FLOWING THROUGH BOTH WIRINGS WITH INDICATED POLAR TYPE THERE IS NO NET TORQUE.