Siemens SIPROTEC 7SJ62 - Synchronization Function

Technical Data
4.22 Synchronization Function
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
524
4.22 Synchronization Function
Operating Modes
Additional Release Conditions
Voltages
Permissible Difference
Circuit breaker
Threshold ASYN / SYN
Matching
- Synchrocheck
- Asynchronous / Synchronous (only 7SJ64)
- Live bus / dead line,
- Dead bus / live line,
- Dead bus and dead line
- Bypassing
Maximum operating voltage V
max
20 V to 140 V (phase-to-phase) Increments 1 V
Minimum operating voltage V
min
20 V to 125 V (phase-to-phase) Increments 1 V
V< for dead line
V> for live line
1 V to 60 V (phase-to-phase)
20 V to 140 V (phase-to-phase)
Increments 1 V
Increments 1 V
Primary transformer rated voltage V2N 0.10 kV to 800.00 kV Increments 0.01 kV
Tolerances 2 % of pickup value or 2 V
Dropout Ratios approx. 0.9 (V>) or 1.1 (V<)
Voltages differences V2>V1; V2<V1
Tolerance
0.5 V to 50.0 V (phase-to-
phase)
1 V
Increments 0.1 V
Frequency Difference f2>f1; f2<f1
Tolerance for 7SJ64
Tolerance for 7SJ62
0.01 Hz to 2.00 Hz
15 mHz
20 mHz
Increments 0.01 Hz
Angle Difference α2 > α1; α2 < α1 2° to 80° Increments 1°
Tolerance 2°
Max. angle error 5° for ∆f ≤ 1Hz
10° for ∆f > 1 Hz
Circuit breaker operating time 0.01 s to 0.60 s Increments 0.01 s
Frequency Difference F
Synchronous
0.01 Hz to 0.04 Hz Increments 0.01 Hz
Vector group matching via angle 0° to 360° Increments 1°
Different voltage transformer V1/V2 0.50 to 2.00 Increments 0.01
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