Synchronism And Voltage Check 25 (7Sj64 Only) - Siemens siprotec SJ62 User Manual

4 Technical Data
4.21

Synchronism and Voltage Check 25 (7SJ64 only)

Operating Modes
Additional Release Conditions
Voltages
Permissible Difference
Circuit breaker
Threshold ASYN / SYN
503
- Synchrocheck
- Asynchronous / Synchronous
- Live bus / dead line,
- Dead bus / live line,
- Dead bus and dead line
- Bypassing
Maximum operating voltage V
Minimum operating voltage V
V< for dead line / dead bus check V<
V> for live line V>
Primary transformer rated voltage V2N
Tolerances
Dropout Ratios
Voltages differences V2>V1; V2<V1
Tolerance
Frequency Difference f2>f1; f2<f1
Tolerance
Angle Difference α2 > α1; α2 < α1
Tolerance
Max. angle error
Circuit breaker operating time
Frequency Difference F
Synchronous
20 V to 140 V (phase-to-
max
phase)
20 V to 125 V (phase-to-
min
phase)
1 V to 60 V (phase-to-
phase)
20 V to 140 V (phase-to-
phase)
0.10 kV to 800.00 kV
2 % of pickup value or 2 V
approx. 0.9 (V>) or 1.1 (V<)
0.5 V to 50.0 V (phase-to-
phase)
1 V
0.01 Hz to 2.00 Hz
15 mHz
2° to 80°
2°
5° for Δf ≤ 1 Hz
10° for Δf > 1 Hz
0.01 s to 0.60 s
0.01 Hz to 0.04 Hz
Increments 1 V
Increments 1 V
Increments 1 V
Increments 1 V
Increments 0.01 kV
Increments 0.1 V
Increments 0.01 Hz
Increments 1°
Increments 0.01 s
Increments 0.01 Hz
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015