ABB REF615 ANSI 5.0 FP1 Product Manual page 58

58 R E F 6 1 5 A N S I 5 . 0 F P 1 F E E D E R P R OT E C T I O N A N D C O N T R O L
Power quality functions
—
Table 92. Voltage variation (PHQVVR)
Characteristic
Operation accuracy
Reset ratio
—
Table 93. Voltage unbalance (VSQVUB)
Characteristic
Operation accuracy
Reset ratio
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
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