ABB RET 543 - Page 59

Fig. 14 Symbol notations, part II
SYMNOT2_RET
3I >
&
MCS
TCS
CBCM
Q
P
3I
3U
I
0
f
pf
U
0
Z<
21G
3Z<
21
X<
40
32
P>
60
F
U
90V
U
= underimpedance protection for generator, low-set and high-set stages
(UI6_)
= fuse failure supervision (FuseFail)
= underpower, low-forward power or reverse power protection,
stages 1, 2 and 3 available (UPOW6St_)
= arc protection with REA 101
= measuring circuit supervision
= trip circuit supervision
= circuit-breaker condition monitoring
= automatic voltage regulation (COLTC)
= manual voltage regulation (COLTC)
= active power measurement, indication and supervision
= reactive power measurement, indication and supervision
= 3-phase current measurement, indication and supervision
= 3-phase voltage or phase-to-phase voltage measurement, indication
and supervision
= frequency measurement, indication and supervision
= power factor measurement, indication and supervision
= residual current measurement, indication and supervision
= residual voltage measurement, indication and supervision
= three-phase underimpedance protection, low-set and high-set stages
(UI6_)
= underexcitation protection, low-set and high-set stages
(UE6_)
Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
59