7SR21 & 7SR22 Performance Specification
Unrestricted Page 48 of 68
© 2013 Siemens Protection Devices Limited
2.19 55 Power Factor
2.19.1 Reference
Parameter
Value
PF
s
55-n Setting
0.05…0.99
t
d
55-n Delay setting
0.00 … 14400 s
2.19.2 Operate and Reset Level
Attribute
Value
PF
op
Operate Level
PF
s
±
0.05
Reset Level
Under PF
£
PF
op
+ 0.02
Over PF
³
PF
op
-
0.02
Repeatability
±
0.05
Variation
-10 °C to +55 °C
±
0.05
f
nom
– 3 Hz to
f
nom
+ 2 Hz
±
0.05
2.19.3 Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time
£
70 ms
t
op
Operate time following delay
t
basic
+
t
d
,
±
1 % or
±
10ms
Disengaging time
< 80 ms
2.19.4 Operate Threshold
Attribute
Value
Minimum levels for
operation
I
2.5 % In
V
2.5% Vn
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 ...