ABB Relion 670 Series Commissioning Manual page 96

Section 10
Testing functionality by secondary injection
Table 24:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
1. Change the magnitude and angle of phase-to-earth voltage in phase L1 to achieve impedances
at test points P1, P2, ..., P16. Also, inject same magnitude in phase L2 with phase angle shifted
by 180 degree with reference to phase L1.
2. For each test point, observe that the output signals STELEMST, STNDZL1 and STNDZL2 are
activated.
Testing the residual overcurrent starting element
Inject currents in both the phases such that the residual current (2I0) is measured and if it exceeds
KI0Stab times maximum current measured in both the phases and also make sure that the residual
current exceeds I0MinOp value, the outputs STELEMST and STIE are activated.
Testing the phase selection element
Compensated earthed system
1. Create phase-to-earth fault as described in phase-to-earth fault in compensated and high
impedance earthed system. Distance measuring loops L1E and L2E based on
underimpedance starting will be blocked for measurement for a duration of tI01.
2. If a current magnitude is injected in a phase greater than I01 set value, respective distance
measuring loops L1E and L2E will be released for measurement. The output STCND would
become 1 or 2.
3. Create phase-to-phase fault as described in phase-to-phase fault in compensated and high
impedance earthed system.
4. Phase-to-phase loop L1L2 will be released for measurement if there is any start signal from
underimpedance starting and no start signal from residual overcurrent start. The output STCND
would become 4.
5. Create a fault so that there is no pick-up from underimpedance starting element and pick-up
from residual overcurrent start. Set ModeStubLine to Off.
90
Test points for phase-to-phase fault in compensated and high impedance earthed systems
R
0
((X1Start/2) /
tan(LineAng))
RFPEStart/2
0.8 ∗ RFPEStart/2
RLd
RFPEStart/2
0
- ((X1Start/2) /
tan(LineAng))
- RFPEStart/2
- 0.8 ∗ RFPEStart/2
- RLd
- RFPEStart/2
0.8 ∗ RFPEStart/2
RFPEStart/2
- 0.8 ∗ RFPEStart/2
- RFPEStart/2
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X
X1Start/2
X1Start/2
0.8 * X1Start/2
0.8 ∗ (RFPEStart/2) ∗
tan(ArgLd)
0
0
- X1Start/2
- X1Start/2
- 0.8 * X1Start/2
- 0.8 ∗ (RFPEStart/2) ∗
tan(ArgLd)
0
0
- 0.8 ∗ (RFPEStart/2) ∗
tan(ArgLd)
- 0.8 * X1Start/2
0.8 ∗ (RFPEStart/2) ∗
tan(ArgLd)
0.8 * X1Start/2
Railway application RER670
1MRK 506 377-UEN Rev. K
Comment
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If OpLoadEnch = Off
If 2I0 < I0MinOp
If 2I0 < I0MinOp
If OpLoadEnch = Off
If 2I0 < I0MinOp
If 2I0 < I0MinOp
GUID-500B662C-8018-4394-97FA-B0BA9DE386BD v2
GUID-EDEFABCD-3FF3-4270-A1F2-6C820A7F77F9 v2
Commissioning manual