Table 4: Control functions available for the RET 54_
Function Description
CO3DC1 Three-state disconnector 1 with indication
CO3DC2 Three-state disconnector 2 with indication
COCB1 Circuit breaker 1 control with indication
COCB2 Circuit breaker 2 control with indication
COCBDIR Direct open for CBs via HMI
CODC1 Disconnector 1 control with indication
CODC2 Disconnector 2 control with indication
CODC3 Disconnector 3 control with indication
CODC4 Disconnector 4 control with indication
CODC5 Disconnector 5 control with indication
COIND1 Switching device 1 indication
COIND2 Switching device 2 indication
COIND3 Switching device 3 indication
COIND4 Switching device 4 indication
COIND5 Switching device 5 indication
COIND6 Switching device 6 indication
COIND7 Switching device 7 indication
COIND8 Switching device 8 indication
COLOCAT Logic-controlled control position selector
COLTC On-load tap changer controller (voltage regulator)
COSW1 On/off switch 1
COSW2 On/off switch 2
COSW3 On/off switch 3
COSW4 On/off switch 4
MMIALAR1 Alarm channel 1, LED indicator
MMIALAR2 Alarm channel 2, LED indicator
MMIALAR3 Alarm channel 3, LED indicator
MMIALAR4 Alarm channel 4, LED indicator
MMIALAR5 Alarm channel 5, LED indicator
MMIALAR6 Alarm channel 6, LED indicator
MMIALAR7 Alarm channel 7, LED indicator
MMIALAR8 Alarm channel 8, LED indicator
MMIDATA1 MIMIC data monitoring point 1
MMIDATA2 MIMIC data monitoring point 2
MMIDATA3 MIMIC data monitoring point 3
MMIDATA4 MIMIC data monitoring point 4
MMIDATA5 MIMIC data monitoring point 5
Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
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