7SR21 & 7SR22 Performance Specification
Unrestricted Page 24 of 68
© 2013 Siemens Protection Devices Limited
2.4
32S Sensitive Power
2.4.1 Reference
Parameter
Value
S
s
32S-n Setting
0.005…2 x Sn
t
d
32S-n Delay setting
0.00 … 14400 s
2.4.2 Operate and Reset Level
Attribute
Value
S
op
Operate level
100 % S
s
,
±
5% or
±
2% Sn
Reset level
Over-power
³
95 %
S
op
Under-power
£
105 %
S
op
Variation
-10 °C to +55 °C
£
5 %
f
nom
– 3 Hz to
f
nom
+ 2 Hz
£
5 %
2.4.3 Operate and Reset Time
Attribute
Value
t
basicE
Element basic
operate time
Over-power
1.1 x
Ss
: 60 ms
±
10 ms
2.0 x
Ss
: 45 ms
±
10ms
Under-power
0.5 x
Ss
: 30 ms
±
10ms
t
op
Operate time following delay
t
basic
+
t
d
,
±
1 % or
±
10ms
Disengaging time
< 40 ms
2.4.4 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 ...
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Page 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
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Page 472: ...7SR220 Technical Manual Chapter 4 Page 92 of 96 2017 Siemens Protection Devices Limited ...
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