ABB PMA - Figure 8: Internal Schematic of the Type PMD Relay in the FT-21 case - dc supply - for three-term...; Figure 9: Internal Schematic of the Type PMD-1 Relay in the FT-11 case - dc supply - for three-te...

41-973.5R
18
Type PM Line of Relays For Pilot Wire Monitoring
And Transferred Tripping
Figure 8: Internal Schematic of the Type PMD Relay in the FT-21 case -
dc supply – for three-terminal lines.
Figure 9: Internal Schematic of the Type PMD-1 Relay in the FT-11 case -
dc supply – for three-terminal lines.
*Sub 5 184A583
Sub 4 184A582