ABB Relion 670 Series Commissioning Manual page 121

1MRK 506 377-UEN Rev. K
1. Check that IED settings are appropriate i.e. U1> and t1 and set OpMode1 to Any phase mode.
Also, set ConnType to PhNDFT.
2. Supply the IED with two-phase voltages at their rated values.
3. Slowly increase the voltage in one of the phases until the ST1 and START signals appear.
4. Note the operate value and compare it with the set value U1>.
5. Observe that TR1 and TRIP signals appear after set time delay of t1 s.
For phase-to-earth measurement:
U
100
IECEQUATION16026 V1 EN-US
For phase-to-phase measurement:
U 1
100
IECEQUATION2427 V1 EN-US
6. Decrease the phase voltage to a value lower than set U1> value.
7. Observe that the ST1 and START signals reset.
8. Set and apply about 20% higher voltage than U1> value for one phase.
9. Measure the operate time for TR1 and TRIP Signals.
10. Repeat the above described steps for Step 2 of the function.
10.6.2.2 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
10.6.3 Two step residual overvoltage protection ROV2PTOV
Prepare the IED for verification of settings outlined in Section
Values of the logical signals for ROV2PTOV are available on the local HMI under Main menu /
Tests /Function status /Voltage protection /ResidualOverVoltage2Step(59N, 2(U0>)) /
ROV2PTOV(59N;2(U0>)):x , where x = 1, 2.
The Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
10.6.3.1 Verifying the settings
1. Apply a single-phase voltage either to a single-phase voltage input or to a residual voltage
input with the start value below the set value U1>.
2. Slowly increase the value beyond the U1> setting until ST1 appears.
3. Note the operate value and compare it with the set value U1>.
4. Decrease the voltage slowly and note the reset value.
5. Set and apply a 20% higher voltage than the measured operate value for one phase.
6. Measure the time delay for the TR1 signal and compare it with the set value t1.
7. Repeat the test 1–6 above for Step 2 of the function.
Railway application RER670
Commissioning manual
The operate value in secondary volts is calculated according to the following
equations:

1 UBase VT sec
 
2 VTprim
VT sec
>
UBase
× ×
VTprim
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Testing functionality by secondary injection
"Preparing the IED to verify
Section 10
(Equation 8)
(Equation 9)
M13806-43 v6
SEMOD54358-3 v7
settings".
SEMOD54358-35 v11
115