Siemens SIPROTEC 7UM62 User Manual

Technical Data
4.25 Sensitive Earth Fault Protection B (ANSI 51GN)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
500
4.25 Sensitive Earth Fault Protection B (ANSI 51GN)
Setting Ranges / Increments
Times
Drop-off to pick-up ratio
Tolerances
Influencing Variables
Pickup Current I
EE-B
> 0.3 mA to 1000.0 mA Increments 0.1 mA
Delay Time T
IEE-B
> 0.00 s to 60.00 s
or ∞ (ineffective)
Increments 0.01 s
Pickup Current I
EE-B
< 0.3 mA to 500.0 mA
or 0 (ineffective)
Increments 0.1 mA
Delay Time T
IEE-B
> 0.00 s to 60.00 s
or ∞ (ineffective)
Increments 0.01 s
Pickup Seal-In Time IeeB> 0.00 s to 60.00 s Increments 0.01 s
Pickup Seal-In Time IeeB< 0.00 s to 60.00 s Increments 0.01 s
Measurement Method when Used as Rotor Earth Fault
Protection
- Fundamental
- 3. Harmonics
- 1. and 3rd harmonic
Pick-up times approx. 50 ms
Dropout times approx. 50 ms
Pickup Current I
EE-B
> approx. 0.90 or 0.15 mA
I
Ns-B
< approx. 1.10 or 0.15 mA
Pickup current 1 % of setting value or 0.1 mA
Time delay 1 % of set value or 10 ms
Power supply direct voltage in range 0.8 ≤ U
Aux
/U
AuxN
≤ 1.15 ≤ 1 %
Temperature in range 23.00 °F (–5 °C) ≤ Θ
amb
≤ 131.00 °F (55 °C) ≤ 0.5 %/10 K
Frequency in range 0.95 ≤ f/f
N
≤ 1.05 ≤ 1 %
Harmonics
- Up to 10 % 3rd harmonic
- Up to 10 % 5th harmonic
≤ 1 %
≤ 1 %

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English