ABB REF 543 - Page 67

Feeder Terminal REF 541, REF 543, REF 545.
1MRS750443-MBG
67
Fig. 20 Symbol notations, part III
E
R
000
000
0
I
= energy counter, forward or reverse active / reactive energy
= annunciating, event generating and value recording functions
= disturbance recorder
= digital value indication
= MMI/MIMIC display
= local and remote control interface
= bay-oriented interlocking logic
SYMNOT3
3I~harm
3U~harm
= current waveform distortion measurement
= voltage waveform distortion measurement