ABB SPAU 140 C - SPCU 3 D45 Module Functions; Synchro-check Function; Voltage-check Function; Settings for the Synchro-check Function

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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