ABB Relion 670 series, Руководство по вводу в эксплуатацию

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6. Measuring loop L1E will be released for distance measurement after set delay of tI0 sec if
magnitude of phase L1 is above KI times magnitude of phase L2 and ModePhSelKI set to Off.
Repeat the same by injecting the current in phase L2. The output STCND would become 9 or
10.
7. Create a fault so that there is no pick-up from underimpedance starting element and pick-up
from residual overcurrent start after a delay time of
tI0 . Set ModePhSelKI to On.
8. Difference between the two phase currents must be less than I0MinPhSel value in order to
release either PE loops or PP loop for distance measurement based on mode of setting
ModeI0StRel . The output STCND would become 11 or 12.
High impedance earthed system
GUID-72BE268C-F6CB-4E6E-9964-B48EB14D5337 v2
1. Create a phase-to-earth fault as described in phase-to-earth fault for underimpedance start in
compensated and high impedance earthed system. Distance measuring loops L1E and L2E will
be released for measurement based on respective start outputs from underimpedance starting
and also presence of residual overcurrent start. The output STCND would be 1 or 2.
2. Phase-to-phase loop L1L2 will be released for measurement if there is any start signal from PE
loop from underimpedance starting and no start signal from residual overcurrent start. The
output STCND would become 4.
3. Create phase-to-phase fault as described in phase-to-phase fault in compensated and high
impedance earthed system.
4. Three measuring loops will be released for distance measurement after delayed start output
from residual overcurrent start by
tI0 if there were no start output from underimpedance starting
and ModeStubLine set to Off. The output STCND would be 15.
5. Create a fault so that neutral voltage (UL1+UL2) is measured, if it exceeds set U0DetMin value
and set ModeU0DetMin to On , loops L1E and L2E will be released for measurement. The
output STCND would be 3.
Testing the end zone timer function
GUID-9AFDBB99-67DC-4D7E-9216-9861DE58839F v1
End zone timer logic acts as remote back-up to the distance protection and utilizes the output signals
from underimpedance and residual overcurrent starting elements.
1. To test end zone 1, set OpModetEnd1 to On.
2. Set OpDirEnd1 to Forward, OpModeEndI0 to Off and tEnd1 to default value.
3. If SysemEarthing is selected as Compensated / High impedance, phase voltage and phase
current will be injected in accordance with Chapter 'Phase-to-earth fault – circular
characteristic' for test points P1, P2 and P3 or Chapter 'Phase-to-earth fault – quadrilateral
characteristic' for test points P1, P2, P3, P4 and P5.
4. If OpDirEnd1 is set to Non-directional, the injected phase voltage and phase current will be in
accordance with Chapters 'Phase-to-earth fault – circular characteristic' and 'Phase-to-earth
fault - quadrilateral characteristic' when
SysemEarthing is selected as Compensated / High
impedance.
5. If OpModeEndI0 is set to On, residual overcurrent based tripping will take place if there were
no pick-up from underimpedance starting.
6. Trip outputs TRIP, TRL1, TRL2 and TREND1 activated after set delay of tEnd1 .
7. Repeat the above steps to test end zone 2 logic.
Testing the measuring element
GUID-E175A70C-F17A-45B3-8FBF-774A9AB96DCD v2
1. Set OpZx to On, DirModeZx to Forward, LCModeZx to Off and PhSelModeZx to Phsel logic.
Assume that the output LDCND is available before performing testing of measuring zone for
accuracy. Where x = 1, 2, …, 6.
2. Set ZoneCharSym to NonSymmetry.
3. Set ModePhPref to Equal priority.
1MRK 506 377-UEN Rev. K Section 10
Testing functionality by secondary injection
Railway application RER670 91
Commissioning manual
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