Motor Starting Time Supervision - Siemens SIPROTEC 4 7SJ61 Manual

Technical Data

4.9 Motor Starting Time Supervision

4.9 Motor Starting Time Supervision
Setting Ranges / Increments
Startup current of the motor
Ι
STARTUP
Pickup threshold Ι
Permissible startup time T
Permissible locked rotor time T
Maximum startup time with warm motor
T
Max.STARTUP W
Maximum startup time with cold motor
T
Max.STARTUP K
Trip Curve
Dropout Ratio
Dropout ratio
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 25 Hz to 70 Hz
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
312
for Ι = 1 A
Nom
for Ι = 5 A
Nom
for Ι = 1 A
MOTOR START Nom
for Ι = 5 A
Nom
Max.STARTUP
LOCKED ROTOR
approx. 0.95
2 % of setting value or 10 mA for Ι
5 % or 30 ms
PS
amb
0.50 A to 16.00 A
2.50 A to 80.00 A
0.40 A to 10.0 A
2.00 A to 50.00 A
1.0 s to 180.0 s
0.5 s to 180.0 s or ∞ (disabled)
0.5 s to 180.0 s or ∞ (disabled)
0 % to 80 % or ∞ (disabled)
Nom
/V ≤ 1,15
PSNom
≤ 131.00 °F (55 °C)
Increments 0.01 A
Increments 0.01 A
Increments 0.1 s
Increments 0.1 s
Increments 0.1 s
Increments 1 %
= 1 A or 50 mA for Ι = 5 A
Nom
1 %
0.5 %/10 K
1 %
1 %
1 %
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016