7SR210 & 7SR220 Commissioning & Maintenance Guide
Page 68 of 82
© 2013 Siemens Protection Devices Limited
3.2.1 1 or 2 Phase VT fail
Apply 3P balanced nominal current and voltage. Reduce 1 phase voltage until VTS operates, record voltage
reduction level.
60VTS V Setting
Setting x 3
Measured Voltage Reduction
Increase the voltage until VTS resets. Increase current on 1 phase by 110 % of 3x the
60VTS I
setting. Reduce
voltage as above and check for no operation. Return voltage to nominal. Increase current on 1 phase by 90 % of
3x the
60VTS I.
setting. Reduce voltage as above and check for VTS operation.
3.2.2 3 Phase VT fail
Apply 3P balanced nominal voltage and 3P balanced current at a level between the
60VTS Ipps Load
setting and
the
60VTS Ipps Fault
setting. Reduce the balanced Voltage on all 3 phases until the VTS operates at the
60VTS
Vpps
setting. Return the voltage to nominal and ensure that VTS resets.
Reduce the 3P balanced current to a level below the
60VTS Ipps Load
setting. Reduce the 3P balanced voltage
to a level below the operate level above. Gradually increase the 3P balanced current until the VTS operates.
Check that the thermal rating of the relay current inputs is not exceeded during the following test. Increase the 3P
balanced current to a level above the
60VTS Ipps Fault
setting. Reduce the 3P balanced voltage to a level below
the operate level above. Gradually reduce the 3P balanced current until the VTS operates.
Setting
Measured
60VTS Vpps
60VTS Ipps Load
60VTS Ipps Fault
If the VTS can be started from a status input fed from an external source, this functionality should be tested.
Ext_Trig 60VTS
Operation
Not Applicable.
1.1.1.1
Element Blocking
The VT Supervision can be blocked by Binary Input Inhibit. This functionality should be checked.
Element
BI Inhibits
60VTS
60VTS I Setting
Setting x 3
110% of Setting x 3
90% of Setting x 3
No VTS.
□
VTS operation.
□
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 ...