Siemens SIPROTEC 6MD665, Manual

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4.3 Circuit breaker synchronisation
139
6MD665 Manual
C53000-G1876-C103-3
4.3 Circuit breaker synchronisation
Operating modes
Test programs Synchronisation check,
live bus / dead line
live bus / dead line
dead bus and dead line
bypassing,
or combination of them
Synchronisation Closing the circuit breaker under synchronous and
asynchronous power conditions possible (with
circuit breaker operating time)
Voltages
Maximum working voltage 20 V to 140 V (phase-to-phase) (1 V increments)
V< for dead status
V> for live status
1 V to 60 V (phase-to-phase) (1 V increments)
20 V to 125 V (phase-to-phase) (1 V increments)
Tolerances
Dropout
2 % of pickup value or 2 V
Approx. 0.9 (V>) or 1.1 (V<); max. 1 V
∆
V measurements
Quantity difference
Tolerance
1 V to 40 V (phase-to-phase) (0.1 V increments)
1 V
Synchronous power conditions
∆Φ
-measurement
Tolerance
2
°
to 60
°
(1
°
increments)
2
°
∆
f-measurement
Tolerance
0.03 Hz to 2.00 Hz (0.01 Hz increments)
15 mHz
The maximum permissible frequency difference
depends on the circuit breaker operating time
Max. angle error 5
°
for
∆
f
≤
2 Hz
Enable delay 0.00 s to 60.00 s (0.01 s increments)
Asynchronous power conditions
∆
f-measurement
Tolerance
0.03 Hz to 2.00 Hz (0.01 Hz increments)
15 mHz
The maximum permissible frequency difference
depends on the circuit breaker operating time
Synchronous/asynchronous limits 0.01 Hz to 0.04 Hz (1 mHz increments)
Circuit breaker operating time 0.01 s to 0.60 s (0.01 s increments)
Times
Minimum measuring time Approx. 80 ms