Chapter 3) 7SR242 Duobias Performance Specification
©2015 Siemens Protection Devices Limited
Chapter 3 Page 35 of 50
2.12 51G Time Delayed Measured Earth Fault
2.12.1 Reference
Parameter
Value
Is
Setting
0.005, 0.10… 1.0
xIn
Char
Characteristic setting
IEC-NI, -VI, -EI, -LTI; ANSI-MI, -VI, -EI; DTL
Tm
Time Multiplier setting
0.025, 0.030… 1.6, 1.7… 5, 6… 100
t
d
Delay setting (DTL)
0, 0.01… 20 s
t
res
Reset setting
ANSI DECAYING, 0, 1… 60 s
I
Applied current (for
operate time)
IDMTL
2 to 20 x
Is
DTL
5 x
Is
2.12.2 Operate and Reset Level
Attribute
Value
I
op
Operate level
105 %
Is
, 4 % or 1%
In
Reset level
95 %
I
op
Repeatability
1 %
Variation
-10 °C to +55 °C
5 %
f
nom
- 3 Hz to
f
nom
+ 2 Hz
5 %
Summary of Contents for 7SR242 Duobias
Page 1: ...Answers for energy 7SR242 Duobias Transformer Protection Relay Reyrolle Protection Devices ...
Page 2: ...2 ...
Page 4: ...4 ...
Page 6: ...6 www siemens com energy ...
Page 318: ... 2015 Siemens Protection Devices Limited Chapter 7 Page 2 of 64 ...
Page 324: ... 2015 Siemens Protection Devices Limited Chapter 7 Page 8 of 64 ...
Page 358: ... 2015 Siemens Protection Devices Limited Chapter 7 Page 42 of 64 ...
Page 366: ... 2015 Siemens Protection Devices Limited Chapter 7 Page 50 of 64 ...
Page 380: ... 2015 Siemens Protection Devices Limited Chapter 7 Page 64 of 64 ...
Page 381: ......