ABB Relion 670 series - Monitored Data

Name Values (Range) Unit Step Default Description
LocationOLTC1 Not Used
Winding 1 (W1)
Winding 2 (W2)
Winding 3 (W3)
- - Not Used Transformer winding where OLTC1 is
located
LowTapPosOLTC1 0 - 10 - 1 1 OLTC1 lowest tap position designation
(e.g. 1)
RatedTapOLTC1 1 - 100 - 1 6 OLTC1 rated tap/mid-tap position
designation (e.g. 6)
HighTapPsOLTC1 1 - 100 - 1 11 OLTC1 highest tap position designation
(e.g. 11)
TapHighVoltTC1 1 - 100 - 1 1 OLTC1 end-tap position with winding
highest no-load voltage
StepSizeOLTC1 0.01 - 30.00 % 0.01 1.00 Voltage change per OLTC1 step in percent
of rated voltage
LocationOLTC2 Not Used
Winding 1 (W1)
Winding 2 (W2)
Winding 3 (W3)
- - Not Used Transformer winding where OLTC2 is
located
LowTapPosOLTC2 0 - 10 - 1 1 OLTC2 lowest tap position designation
(e.g. 1)
RatedTapOLTC2 1 - 100 - 1 6 OLTC2 rated tap/mid-tap position
designation (e.g. 6)
HighTapPsOLTC2 1 - 100 - 1 11 OLTC2 highest tap position designation
(e.g. 11)
TapHighVoltTC2 1 - 100 - 1 1 OLTC2 end-tap position with winding
highest no-load voltage
StepSizeOLTC2 0.01 - 30.00 % 0.01 1.00 Voltage change per OLTC2 step in percent
of rated voltage
6.1.6 Monitored data
PID-6623-MONITOREDDATA v2
Table 55: T2WPDIF (87T) Monitored data
Name Type Values (Range) Unit Description
IDMAG_A REAL - A Magnitude of fundamental frequency
differential current, phase A
IDMAG_B REAL - A Magnitude of fundamental frequency
differential current, phase B
IDMAG_C REAL - A Magnitude of fundamental frequency
differential current, phase C
IBIAS REAL - A Magnitude of the bias current, which is
common to all phases
IDMAG_NS REAL - A Magnitude of the negative sequence
differential current
1MRK 502 066-UUS B Section 6
Differential protection
117
Technical manual