Siemens SIPROTEC 7UM62 User Manual

Technical Data
4.24 100-%-Stator Earth Fault Protection with 20 Hz Voltage Injection (ANSI 64G - 100%)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
499
4.24 100-%-Stator Earth Fault Protection with 20 Hz Voltage Injection
(ANSI 64G - 100%)
Setting Ranges / Increments
Times
Dropout Ratios
Tolerances
Influencing Variables for Pickup Values
Alarm Stage R
SEF
<20Ω to 700 Ω Increments 1 Ω
Tripping Stage R
SEF
<< 20 Ω to 700 Ω Increments 1 Ω
Earth currrent stage I
SEF
> 0.02 A to 1.50 A Increments 0.01 A
Time Delay 0.00 s to 60.00 s
or ∞ (ineffective)
Increments 0.01 s
Failure Monitoring 20 HZ Generator
U20 0.3 V to 15 V Increments 0.1V
I20 5 mA to 40 mA Increments 1 mA
Correction Angle -60° to +60° Increments 1°
Pickup Time R
SEF
<, R
SEF
<< ≤ 1.3 s
Pickup Time I
SEF
> ≤ 250 ms
Dropout Times R
SEF
<, R
SEF
<< ≤ 0.8 s
Dropout Times I
SEF
> ≤ 120 ms
Dropout Ratio Approx. 1.2 to 1.7
Resistance approx. 5 % or 2 Ω
Current 3 % or 3 mA
Time Delay 1 % 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