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Technical data Synchro-check function
Upper threshold voltage U
max
Setting range 0.5...1.0 x U
n
Resolution 0.01 x U
n
Voltage difference ∆U
Setting range 0.02...0.4 x U
n
Resolution 0.01 x U
n
Frequency difference ∆f
Setting range 0.02...0.5 Hz
Resolution 0.01 Hz
Phase angle difference ∆ϕ
Setting range 5...50°
Resolution 1°
Measuring time when the energizing voltages U1, U2
and U3 increase from 0 V to 1 x U
n
, fixed value 160 ms ± 20 ms
Rated frequency f
n
50/60 Hz
Frequency range 45...65 Hz
Reset time <120 ms
Operation accuracy
- Voltage difference ∆U ±3% of set value or ±0.02 x U
n
- Frequency difference ∆f ±0.02 Hz
- Phase angle difference ∆ϕ ±2°
Measuring of frequency and phase angle difference measurable when the voltage
>0.15 x U
n
Voltage-check function
Upper threshold voltage U
max
,
the same as for synchro-check function
Setting range 0.5...1.0 x U
n
Resolution 0.01 x U
n
Lower threshold voltage U
min
Setting range 0.1...0.8 x U
n
Resolution 0.01 x U
n
Selectable energizing directions
Stage 1: both "cold" or U1→U3 or U1←U3
U1→U3
U1←U3
U1→U3 or U1←U3
Stage 2: both "cold" or U2→U3 or U2←U3
U2→U3
U2←U3
U2→U3 or U2←U3
Operate time ("dead-time") t
VC
Setting range 0.1...20 s
Operate time accuracy ±2% of set value or ±25 ms
Reset time <120 ms
Operation accuracy ±3% of set value or ±0.02 x U
n
Command mode operation
Length of CB closing signal, t
pulse
Setting range 0.2...20 s
Check time for closing operation, t
check
Setting range 0.05...300 s
Operate time of CB for stage 1, t
CB13
Setting range 0.05...0.25 s
Operate time of CB for stage 2, t
CB23
Setting range 0.05...0.25 s
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