7SR210 & 7SR220 Commissioning & Maintenance Guide
Page 18 of 82
© 2013 Siemens Protection Devices Limited
2.2.1 Definite Time Overcurrent. (50)
If DTL setting is small, gradually increase current until element operates.
If DTL is large apply 0.9x setting, check for no operation, apply 1.1x setting, and check operation.
Apply 2x setting current if possible and record operating time.
Phase Dir.
Is
(Amps)
DTL
(sec)
P.U. Current
Amps
Tol
Operate Time
2 x Is
Tol
I
L1
(I
A
)
I
L2
(I
B
)
I
L3
(I
C
)
Check correct indication, trip output, alarm contacts, waveform record.
2.2.2 Inverse Time Overcurrent. (51)
It will be advantageous to map the function being tested to temporarily drive the relevant Pickup output in the
Pickup Config
sub-menu in the
Output Config
menu as this will allow the Pick-up led to operate for the function.
Gradually increase current until Pickup LED operates.
Apply 2x setting current and record operating time,
Apply 5x setting current and record operating time.
Compare to calculated values for operating times
Gradually reduce current until the element drops off and record the level.
P.U.
D.O.
&
TIMING
TESTS
Ph.
Dir
Char.
Curve
Is
(A)
TM
Operate Current
Operate Time
P.U.
(Amps)
D.O.
(Amps)
Tol
2 x Is
(sec)
5 x Is
(sec)
Tol
I
L1
(I
A
)
I
L2
(I
B
)
I
L3
(I
C
)
Calculated Timing values in seconds for TM =1.0
Curve
2 xIs
5 xIs
IEC-NI
10.03
4.28
IEC-VI
13.50
3.38
IEC-EI
26.67
3.33
IEC-LTI
120.00
30.00
ANSI-MI
3.80
1.69
ANSI-VI
7.03
1.31
ANSI-EI
9.52
1.30
Note that the operate time may be subject to the
Minimum op time
setting for the element and/or may have a
Follower DTL
applied.
Содержание Argus 7SR21
Страница 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Страница 2: ......
Страница 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Страница 116: ...7SR210 Instrumentation Guide Unrestricted Page 4 of 12 2018 Siemens Protection Devices Limited 1 Function Diagram ...
Страница 117: ...7SR210 Instrumentation Guide Unrestricted 2018 Siemens Protection Devices Limited Page 5 of 12 2 Menu Structure ...
Страница 129: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 5 of 61 1 Function Diagram ...
Страница 130: ...7SR210 Settings Guide Unrestricted Page 6 of 61 2018 Siemens Protection Devices Limited 2 Menu Structure ...
Страница 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Страница 189: ...7SR220 Instrumentation Guide Page 4 of 20 2017 Siemens Protection Devices Limited 1 Function Diagram ...
Страница 190: ...7SR220 Instrumentation Guide 2017 Siemens Protection Devices Limited Page 5 of 20 2 Menu Structure ...
Страница 194: ...7SR220 Instrumentation Guide 2017 Siemens Protection Devices Limited Page 9 of 20 Frequency 0 000Hz ...
Страница 211: ...7SR220 Settings Guide Unrestricted Page 6 of 107 2013 Siemens Protection Devices Limited 1 Function Diagram ...
Страница 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Страница 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
Страница 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
Страница 398: ...7SR220 Technical Manual Chapter 4 Page 18 of 96 2017 Siemens Protection Devices Limited ...
Страница 414: ...7SR220 Technical Manual Chapter 4 Page 34 of 96 2017 Siemens Protection Devices Limited ...
Страница 466: ...7SR220 Technical Manual Chapter 4 Page 86 of 96 2017 Siemens Protection Devices Limited ...
Страница 468: ...7SR220 Technical Manual Chapter 4 Page 88 of 96 2017 Siemens Protection Devices Limited ...
Страница 470: ...7SR220 Technical Manual Chapter 4 Page 90 of 96 2017 Siemens Protection Devices Limited ...
Страница 472: ...7SR220 Technical Manual Chapter 4 Page 92 of 96 2017 Siemens Protection Devices Limited ...
Страница 643: ...Unrestricted ...