
7SR21 & 7SR22 Performance Specification
Unrestricted Page 52 of 68
© 2013 Siemens Protection Devices Limited
2.22 67/67N Directional Overcurrent & Earth Fault
2.22.1 Reference
Parameter
Value
u
s
Angle setting
-95…+95
°
I
Applied current
In
V
Applied voltage
110 V phase-phase (63.5 V phase-earth)
2.22.2 Operate Angle
Attribute
Value
CA
Characteristic angle (I with respect
to V)
u
s
,
±
5
°
Operating angle
forward
CA
- 85
° ±
5
°
to
CA
+ 85
° ±
5
°
reverse
(
CA
- 180
°
) - 85
° ±
5
°
to (
CA
- 180
°
) + 85
° ±
5
°
Variation in
characteristic
angle
10°C to +55°C
±
5
°
f
nom
- 3 Hz to
f
nom
+ 2 Hz
±
5
°
2.22.3 Operate Threshold
Attribute
Value
Minimum levels for
operation
I (p/f)
> 5 % In
I (e/f)
> 10 % In
V (p/f)
> 1 V
V (e/f)
> 1 V
2.22.4 Operate and Reset Time
Attribute
Value
Operate time
typically 25 < 40 ms at characteristic angle
Reset time
typically < 65 ms at characteristic angle
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
Page 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
Page 398: ...7SR220 Technical Manual Chapter 4 Page 18 of 96 2017 Siemens Protection Devices Limited ...
Page 414: ...7SR220 Technical Manual Chapter 4 Page 34 of 96 2017 Siemens Protection Devices Limited ...
Page 466: ...7SR220 Technical Manual Chapter 4 Page 86 of 96 2017 Siemens Protection Devices Limited ...
Page 468: ...7SR220 Technical Manual Chapter 4 Page 88 of 96 2017 Siemens Protection Devices Limited ...
Page 470: ...7SR220 Technical Manual Chapter 4 Page 90 of 96 2017 Siemens Protection Devices Limited ...
Page 472: ...7SR220 Technical Manual Chapter 4 Page 92 of 96 2017 Siemens Protection Devices Limited ...
Page 643: ...Unrestricted ...