ABB REU 610 Technical Reference Manual page 35

1MRS755769
Voltage Relay
Technical Reference Manual
k<,
k<<
2.0
1.4
1.0
0.7
0.4
0.2
0.1
U/U<,
U/U<<,
0.3 0.4
U /U <
1s 1
Fig. 5.1.4.6.-3 Characteristics of type C
0.5 0.6 0.7 0.8
REU 610
t/s
1000
100
10
1
0.1
0.01
0.9 1
A052088
35