ABB RED615 - Power Quality Functions; Voltage Variation (PHQVVR); Voltage Unbalance (VSQVUB)

Power quality functions
Table 79. Voltage variation (PHQVVR)
Characteristic Value
Operation accuracy ±1.5% of the set value or ±0.2% of reference voltage
Reset ratio Typically 0.96 (Swell), 1.04 (Dip, Interruption)
Table 80. Voltage unbalance (VSQVUB)
Characteristic Value
Operation accuracy ±1.5% of the set value or ±0.002 × U
n
Reset ratio Typically 0.96
Line Differential Protection and Control
1MRS756500 K
RED615
Product version: 5.0 FP1
ABB 51