Load Jam Protection - Siemens SIPROTEC 7SJ62 Manual

Technical Data

4.13 Load Jam Protection

4.13 Load Jam Protection
Setting Ranges / Increments
Tripping threshold
Alarm threshold
Trip delay
Message delay
Blocking duration after motor start
Timers
Pickup time
Dropout time
Dropout ratio
Dropout ratio tripping stage
Dropout ratio warning stage
Tolerances
Pickup threshold
Time delay
Influencing Variables
Power supply direct voltage in range 0.8 ≤ V
Temperature in range 23.00 °F (-5 °C) ≤ Θ
Frequency in range f
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
508
for I = 1 A 0.50 A to 12.00 A
Nom
for I = 5 A 2.50 A to 60.00 A
Nom
for I = 1 A 0.50 A to 12.00 A
Nom
for I = 5 A 2.50 A to 60.00 A
Nom
for I = 1 A 2 % of setting value or 10 mA
Nom
for I = 5 A 2 % of setting value or 50 mA
Nom
/V
PS
≤ 131.00 °F (55 °C)
amb
± 5 Hz
Nom
0.00 s to 600.00 s
0.00 s to 600.00 s
0.00 s to 600.00 s
approx. 55 ms
approx. 30 ms
approx. 0.95
approx. 0.95
1 % or 10 ms
≤ 1.15
PSNom
C53000-G1140-C207-2, Release date 01.2008
Increments 0.01 A
Increments 0.01 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
1 %
0.5 %/10 K
1 %
1 %
1 %
SIPROTEC, 7SJ62/64, Manual