
14
Synchro-check relay module SPCU 3D45
Synchro-check function
Upper voltage level threshold U
max
Setting range
0.5...1.0 x U
n
Voltage difference
∆
U
Setting range
0.02...0.4 x U
n
Frequency difference
∆
f
Setting range
0.02...0.5 Hz
Phase difference
∆ϕ
5...50
°
Operate time when the voltage on the
energizing input rises from 0 to 1.0 x U
n
160 ms
±
20 ms (fixed)
Operate time t
CB13
of CB controlled
by stage 1
0.05...0.25 s
Operate time t
CB23
of CB controlled
by stage 2
0.05...0.25 s
Voltage-check function
Upper voltage level threshold U
max
(the same as for the synchro-check function)
Setting range
0.5...1.0 x U
n
Lower voltage level threshold U
min
Setting range
0.1...0.8 x U
n
Energizing direction
Selectable energizing directions
for stage 1
- both dead or U1 –> U3 or U1 <– U3
- U1 <– U3
- U1 –> U3
- U1 <– U3 or U1 –> U3
Selectable energizing directions
for stage 2
- both dead or U2 –> U3 or U2 <– U3
- U2 <– U3
- U2 –> U3
- U2 <– U3 or U2 –> U3
Operate time delay t
vc
(dead time)
- setting range
0.1...20 s
- setting accuracy
0.01 s