ABB RELION 615 SERIES Product Manual page 35

Voltage Protection and Control
REU615
Product version: 5.0 FP1
Control functions
Table 52. Tap changer position indication (TPOSYLTC)
Descrpition
Response time for binary inputs
Table 53. Tap changer control with voltage regulator (OLATCC)
Characteristic
1)
Operation accuracy
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Reset ratio for control operation
Reset ratio for analogue based blockings (except run back raise voltage
blocking)
1) Default setting values used
2) Voltage before deviation = set Band center voltage
ABB
Value
Typically 100 ms
Value
Depending on the frequency of the measured current: f
Differential voltage U
measured voltages <2.0 × U
Operation value = ±1.5% of the U
+4.0%/-0% of the set value
2)
+8.5%/-0% of the set value
2)
(at theoretical B in range of 1.1...5.0)
Also note fixed minimum operate time (IDMT) 1 s.
Typically 0.80 (1.20)
Typically 0.96 (1.04)
= ±0.5% of the measured value or ±0.005 × U
d
)
n
for Us = 1.0 × U
d
1MRS757058 K
±2 Hz
n
(in
n
n
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