Completing The Test; Overexcitation Protection Oexpvph; Verifying The Settings; Voltage Differential Protection Vdcptov - ABB RELION REG670 Commissioning Manual

Section 12
Testing functionality by secondary injection
12.6.3.2

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.
12.6.4

Overexcitation protection OEXPVPH

Prepare the IED for verification of settings outlined in section
"Requirements" and section "Preparing for test" in this chapter.
12.6.4.1

Verifying the settings

1. Enable function.
2. Connect a symmetrical three-phase voltage input from the test set to the appropriate
connection terminals of the overexcitation protection OEXPVPH is configured for a three-
phase voltage input.
A single-phase injection voltage is applied if the function is configured for a phase-to-
phase voltage input.
OEXPVPH is conveniently tested using rated frequency for the injection voltage and
increasing the injection voltage to get the desired overexcitation level.
3. Connect the alarm contact to the timer and set the time delay
4. Increase the voltage and note the operate value
5. Reduce the voltage slowly and note the reset value.
6. Set the alarm time delay to the correct value according to the setting plan and check the
time delay, injecting a voltage corresponding to 1.2 ·
7. Connect a trip output contact to the timer and temporarily set the time delay
0.5s.
8. Increase the voltage and note the
9. Reduce the voltage slowly and note the reset value.
10. Set the time delay to the correct value according to the setting plan and check the time
delay
11. Check that trip and alarm contacts operate according to the configuration logic.
12. Set the cooling time constant temporarily to min value (1min.) to quickly lower the
thermal content.
13. Wait for a period equal to 6 times
and check the inverse operate time.
Wait until the thermal memory is emptied, set the cooling time constant according to the
setting plan and check another point on the inverse time curve injecting a voltage 1.3 ·
Hz> .
14. Finally check that START and TRIP information is stored in the event menu.
12.6.4.2 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.
12.6.5

Voltage differential protection VDCPTOV

Prepare the IED for verification of settings as outlined in section
"Preparing for test"
186
tMin , injecting a voltage corresponding to 1.2 · V/Hz>> .
in this chapter.
V/Hz> .
V/Hz> .
V/Hz>> operate value
Tcooling switch 20 minutes on a voltage 1.15 · V/Hz>
1MRK 502 067-UEN B
SEMOD54358-38 v4
TestMode setting to Off .
tAlarm temporarily to zero.
tMin to
TestMode setting to Off .
SEMOD175258-3 v2
"Requirements" and section
Commissioning manual
M6583-45 v5
M6583-49 v4
V/
M6583-85 v4