Completing The Test; Limit Counter L4Ufcnt; Estimation Of Transformer Insulation Life Lolsptr; Verifying The Signals And Settings - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN E
11.12.5.2

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.
11.12.6

Limit counter L4UFCNT

The Limit counter function L4UFCNT can be tested by connecting a binary input to the counter
and applying pulses to the counter. The speed of the pulses must not exceed the cycle time of
the function. Normally the counter will be tested when testing the function that the counter is
connected to, such as the trip function. When the function is configured, test it together with
the function that operates it. Trigger the function and check that the counter result
corresponds to the number of operations.
11.12.6.1 Completing the test
Continue to test another function or end the test by changing the Test mode setting to
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.12.7

Estimation of transformer insulation life LOLSPTR

Prepare the IED for verification of settings outlined in Section
settings".
11.12.7.1

Verifying the signals and settings

Time measurement and the injection of current and voltage can be done using common test
equipment.
Verifying HPTMPMAX and TOTCALC outputs
1. Connect the test set for injection of three-phase currents to the appropriate current
terminals of the IED.
2. Activate the TOTVALID input and set some temperature value in TOTEMP input.
3. Supply the IED with three-phase currents slightly more than the rated value.
4. Make sure that the hot spot temperature (HPTMPMAX) is more than the set value of
TOTEMP.
5. Activate the AMBVALID input and set some temperature value in AMBTEMP input.
6. Make sure that the top oil temperature calculated (TOTCALC) is more than the set value
of AMBTEMP.
Verifying WARNINGx and ALARMx outputs
1. Connect the test set for injection of three-phase currents to the appropriate current
terminals of the IED.
2. Make sure that the settings in the IED are appropriate, especially the warning
temperature levels (
3. Supply three-phase currents nearly zero to the IED and take note of hot spot temperature
(HPTMPMAX).
4. Make sure that the WARNINGx and ALARMx signals remains low.
5. Supply three-phase currents slightly more than the rated value to the IED and take note
of hot spot temperature (HPTMPMAX).
Observe the maximum permitted overloading of the current circuits in the IED.
Bay control REC670
Commissioning manual
WrnHPTmpLevX ) and alarm time settings ( tDelayToAlarmX ).
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Testing functionality by secondary injection
TESTMODE setting to Off .
GUID-7EBDC372-3407-4577-8B9A-6AB1758A1F34 v2
GUID-325F040B-BADC-4281-B965-9B7D6BFA3E15 v2
GUID-C08B2360-2134-43DD-9F39-54CD9FA45B5B v1
"Preparing the IED to verify
GUID-1B9A0E70-A40C-4C83-A314-26B4B33C2F97 v1
GUID-95D0A8EC-8901-4269-9FD3-7D7F386E6BB3 v1
GUID-85CA2ABF-13A9-4A4B-8E3F-AEF71D091E32 v1
Section 11
M14955-84 v6
Off .
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