ABB RET 543 - Page 60

Fig. 15 Symbol notations, part III
E
R
000
000
0
I
SYMNOT3_RET
3I-harm
3U-harm
o
T
o
U
o
T
W
o
T
TC
o
T
000
= phase voltage or phase-to-phase voltage measurement, indication
and supervision
= ambient temperature measurement, indication and supervision
= energy counter, forward or reverse active / reactive
energy (MEPE7)
= current waveform distortion measurement (PQCU3H)
= annunciating, event generating and value recording functions
= disturbance recorder (MEDREC16)
= digital value indication
= HMI/MIMIC display
= local and remote control interface
= bay-oriented interlocking logic
= voltage waveform distortion measurement (PQVU3H)
= oil temperature measurement, indication and supervision
= transformer winding temperature measurement, indication
and supervision
= tap changer temperature measurement, indication
and supervision
= tap changer position display
Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
60