Verifying The Settings; Extended Testing; Completing The Test; Two Step Residual Overvoltage Protection Rov2Ptov - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
11.6.2.1

Verifying the settings

Verification of single-phase voltage and time delay to operate for Step 1
1. Apply single-phase voltage below the set value
2. Slowly increase the voltage until the ST1 signal appears.
3. Note the operate value and compare it with the set value
For phase-to-earth measurement:
U
100
IECEQUATION2426 V1 EN-US
For phase-to-phase measurement:
U
100
IECEQUATION2427 V1 EN-US
4. Decrease the voltage slowly and note the reset value.
5. Set and apply about 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.
7. Check the inverse time delay by injecting a voltage corresponding to 1.2 × U1>.
8. Repeat the test to check the inverse time characteristic at different over-voltage levels.
9. Repeat the above described steps for Step 2 of the function.
11.6.2.2

Extended testing

1. The tests above can be repeated for
11.6.2.3

Completing the test

continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.6.3

Two step residual overvoltage protection ROV2PTOV

Prepare the IED for verification of settings outlined in Section
settings".
11.6.3.1 Verifying the settings
192
The operate value in secondary volts is calculated according to the
following equations:
1 UBase VT sec
>
× ×
VTprim
3
1 VT sec
>
UBase
× ×
VTprim
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U1> .
U1> .
2 out of 3 and for 3 out of 3 operation mode.
"Preparing the IED to verify
1MRK 504 165-UEN E
(Equation 103)
(Equation 104)
GUID-BE4B4A36-CCEE-4020-B7DC-6A83A43D11F5 v2
TESTMODE setting to Off .
SEMOD54358-3 v7
SEMOD54358-35 v11
Transformer protection RET670
Commissioning manual
M13806-9 v2
M13806-50 v9
M13806-43 v6