ABB RET630 - Three-Phase Directional Overcurrent Protection Main Settings

Table 30. Three-phase directional overcurrent protection (DPHxPDOC) main settings
Parameter Function Value (Range) Step
Start value DPHxPDOC 0.05...5.00 pu 0.01
Time multiplier DPHxPDOC 0.05...15.00 0.05
Operate delay time DPHxPDOC 0.04...200.00 s 0.01
Directional mode DPHxPDOC 1 = Non-directional
2 = Forward
3 = Reverse
Characteristic angel DPHxPDOC -179...180 deg 1
Operating curve
type
1)
DPHLPDOC Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 17, 18, 19
DPHHPDOC Definite or inverse time
Curve type: 1, 3, 5, 9, 10, 12, 15, 17
1) For further reference please refer to the Operating characteristics table
Transformer Protection and Control 1MRS756788 A
RET630
Product version: 1.0 Issued: 15.09.2009
ABB 27