Power Quality Functions; Voltage Variation (Phqvvr); Voltage Unbalance (Vsqvub) - ABB REV615 Product Manual

Capacitor Bank Protection and Control
REV615
Product version: 5.0 FP1

Power quality functions

Table 64. Voltage variation (PHQVVR)
Characteristic
Operation accuracy
Reset ratio
Table 65. Voltage unbalance (VSQVUB)
Characteristic
Operation accuracy
Reset ratio
ABB
Value
±1.5% of the set value or ±0.2% of reference voltage
Typically 0.96 (Swell), 1.04 (Dip, Interruption)
Value
±1.5% of the set value or ±0.002 × U
Typically 0.96
1MRS757952 D
n
41