Power Quality Functions; Voltage Variation; Voltage Unbalance - ABB REG615 Product Manual

Generator and Interconnection Protection
REG615
Product version: 5.0 FP1

Power quality functions

Table 90. Voltage variation (PHQVVR)
Characteristic
Operation accuracy
Reset ratio
Table 91. 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
1MRS758279 B
n
55