Siemens SIPROTEC 7RW80 User Manual

Technical Data
4.4 Load Restoration
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
188
4.4 Load Restoration
Setting Ranges / Increments
Times
Tolerances
Influencing Variables
Number of load restoration stages 4
Start threshold with f
Nom
= 50 Hz 40.00 Hz to 60.00 Hz Increments 0.01 Hz
Start threshold with f
Nom
= 60 Hz 50.00 Hz to 70.00 Hz Increments 0.01 Hz
Pickup Threshold
= |Start threshold – Pickup threshold|
0.02 Hz to 2.00 Hz Increments 0.01 Hz
Dropout Threshold
= |Start threshold – Dropout threshold|
0.00 Hz to 2.00 Hz Increments 0.01 Hz
Delay times T Pickup and Dropout 0 s to 10800 s Increments 1 s
Delay times T CB-Close command 0.01 s to 32.00 s
Pickup times approx. 100 ms with f
Nom
= 50 Hz
approx. 80 ms with f
Nom
= 60 Hz
Dropout Times approx. 100 ms with f
Nom
= 50 Hz
approx. 80 ms with f
Nom
= 60 Hz
Pickup frequencies
Undervoltage blocking
Time delays
15 mHz (with V = V
nom
, f = f
Nom
± 5 Hz)
3 % of setting value or 1 V
1 % of setting value or 10 ms
Power supply direct voltage in range 0.8 ≤ V
Aux
/V
AuxNom
≤ 1.15 1 %
Temperature in the Range 23.00 °F (–5 °C) ≤ Θ
amb
≤ 131.00 °F (55 °C) 0.5 %/10 K
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
1%
1%

Siemens SIPROTEC 7RW80 Specifications

General

Brand	Siemens
Model	SIPROTEC 7RW80
Category	Relays
Language	English