ABB Relion 670 Series Commissioning Manual page 254

Section 11
Testing functionality by secondary injection
11.13.8.1 Verifying the signals and settings
The current can be injected using common test equipment.
Verifying the warning and alarm time limit of
1. Supply the IED with current at rated value.
2. Apply harmonics at the numerical multiple of fundamental frequency along with the injected
current signal.
3. Slowly increase the harmonic amplitudes until the THDWRN signal appears.
4. Compare the harmonic amplitude level value with the set warning limit value.
5. Continue to inject the same level of harmonics level until the THDALM signal appears and
note down the time from THDWRN set to THDALM set.
6. Compare the noted time value with the set time limit value of alarm.
Verifying the warning and alarm time limit of
1. Supply the IED with current at rated value.
2. Apply harmonics at the numerical multiple of fundamental frequency along with the injected
current signal.
3. Slowly increase the harmonic amplitudes until the TDDWRN signal appears.
4. Compare the harmonic amplitude level value with the set warning limit value.
5. Continue to inject the same level of harmonics level until the TDDALM signal appears and
note down the time from TDDWRN set to TDDALM set.
6. Compare the noted time value with the set time limit value of alarm.
Verifying the warning and alarm time limit of individual harmonic distortions
WrnLimit#HD and tDelayAlm#HD (where # = 2
1. Supply the IED with current at rated value.
2.
Apply 2
3. Slowly increase the harmonic amplitude until the 2NDHDWRN signal appears.
4. Compare the harmonic amplitude level value with the set warning limit value.
5. Continue to inject the same level of harmonics level until the 2NDHDALM signal appears and
note down the time from 2NDHDWRN signal set to 2NDHDALM signal set.
6. Compare the noted time value with the set time limit value of alarm.
7.
Repeat Steps
11.13.8.2 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.
11.13.9 Voltage harmonic monitoring VHMMHAI(VTHD)
Prepare the IED for verification of settings outlined in Section
settings".
248
nd
order harmonic along with injected current signal.
2 to 6 for the harmonics until 5
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THD , WrnLimitTHD and tDelayAlmTHD
TDD , WrnLimitTDD and tDelayAlmTDD
nd rd th
, 3 ...5 )
th
order.
TestMode setting to Off .
"Preparing the IED to verify
Line distance protection REL670
1MRK 506 371-UUS E
GUID-026F1A4F-E9A8-43DC-87E1-0831E0123E50 v1
GUID-92992D84-BDAA-436F-9D2E-3770A29EF956 v1
GUID-3C346AFB-C073-4CA8-A471-57B04D9170DE v1
IHD ,
GUID-C10AB22D-5FC7-47B4-B619-EAC46D1C2ECF v2
GUID-EDB51B29-9556-4EF4-94E6-5DC6B8C0F13A v1
GUID-B2F24353-AAEA-4520-BB1C-5FD5FFCFC67B v1
GUID-804F309E-B02F-4F6B-B0FC-2C7AE3F12DBA v2
Commissioning manual