ABB SPAJ 160 C - Page 56

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Fig 6. Phase unbalance inverse-time characteristics of the capacitor bank protection module
SPCJ 4D40.
When the switch SGF/6 is in position 0 the operating times are according fig 6. In position 1 the
operating times are increased by a factor 10.
0.01
0.1
1
10
100
1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00
∆
t/s
1
0.1
0.2
0.3
0.5
0.7
Ic/ I2>
k
2
∆
∆
0.4