Extended Testing; Completing The Test; Two Step Residual Overvoltage Protection Rov2Ptov; Verifying The Settings - ABB RELION REG670 Commissioning Manual

1MRK 502 067-UEN B
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.
12.6.2.2

Extended testing

1. The tests above can be repeated for
12.6.2.3

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.
12.6.3

Two step residual overvoltage protection ROV2PTOV

Prepare the IED for verification of settings as outlined in section
section
12.6.3.1

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
2. Slowly increase the value until ST1 appears.
3. Note the operate value and compare it with the set value.
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.
7. Check the inverse time delay by injecting a voltage corresponding to 1.2 × U1>.
t s
( )
IECEQUATION2429 V1 EN-US
where:
t(s)
k1
U
U1>
8. Repeat the test for Step 2 of the function.
Commissioning manual
"Preparing for test" in this chapter.
For example, if the inverse time curve A is selected, the trip signals TR1
and TRIP operate after a time corresponding to the equation:
k
1
=
U
 
1
−
 
U
1
>
 
Operate time in seconds
Settable time multiplier of the function for step 1
Measured voltage
Set start voltage for step 1
Testing functionality by secondary injection
2 out of 3 and for 3 out of 3 operation mode.
"Requirements"
U1> .
Section 12
GUID-BE4B4A36-CCEE-4020-B7DC-6A83A43D11F5 v2
M13806-43 v6
TestMode setting to Off .
SEMOD54358-3 v6
and
SEMOD54358-35 v10
(Equation 99)
185