Synchronism And Voltage Check (Optional) - Siemens Siprotec 7VK61 Manual

Technical Data

4.4 Synchronism and Voltage Check (optional)

4.4 Synchronism and Voltage Check (optional)
Operating modes
Operating modes
with automatic reclosure
Synchronism
Operating modes
for manual closure
Voltages
Maximum operating voltage
U< for dead status
U> for live status
Tolerances
Dropout to pickup ratio
ΔU Measurement
Voltage difference
Tolerance
Dropout to pickup ratio
Synchronous power conditions
Δϕ-measurement
Tolerance
Δf-measurement
Tolerance
Enable delay
Asynchronous power conditions
Δf-measurement
Tolerance
Max. angle error
Synchronous/asynchronous limits
Circuit breaker operating time
248
Synchronism check
Live bus - dead line
Dead bus - live line
Dead bus and dead line
Bypassing
Or combination of the above
Closing the circuit breaker under asynchronous power condi-
tions possible (with circuit breaker action time)
As for automatic reclosure,
independently selectable
20 V to 140 V (phase-to-phase)
1 V to 60 V (phase-to-phase)
20 V to 125 V (phase-to-phase)
2 % of pickup value or 1 V
Approx. 0.9 (U>) or 1.1 (U<)
1.0 V to 60.0 V (phase-to-phase)
1 V
Approx. 1.05
2° to 80°
2°
0.03 Hz to 2.00 Hz
15 mHz
0.00 s to 30.00 s
0.03 Hz to 2.00 Hz
15 mHz
5° for Δf ≤ 1 Hz
10° for Δf > 1 Hz
0.01 Hz
0.01 s to 0.60 s
C53000-G1176-C159-3, Release date 05.2009
Increments 1 V
Increments 1 V
Increments 1 V
Increments 0.1V
Increments 1°
Increments 0.01 Hz
Increments 0.01 s
Increments 0.01 Hz
Increments 0.01 s
SIPROTEC, 7VK61, Manual