ABB PMA - Figure 4: Internal Schematic of Type PMA Relay in FT-31 case - 120 volt, 60 hertz supply - for th...; Figure 5: Internal Schematic of Type PMA-1 Relay in FT-21 case - 120 volt, 60 hertz supply - for...

41-973.5R
16
Type PM Line of Relays For Pilot Wire Monitoring
And Transferred Tripping
Figure 4: Internal Schematic of Type PMA Relay in FT-31 case - 120 volt,
60 hertz supply – for three-terminal lines.
Figure 5: Internal Schematic of Type PMA-1 Relay in FT-21 case - 120 volt,
60 hertz supply – for three-terminal lines.
Sub 1 187A191
Sub 1 187A192