a- Test lub hom phiaj:
Qhov kev ntsuam xyuas no tsom rau kev sim ua haujlwm ntawm lub ntsiab relay raws li qhov kev pom zoo zaum kawg rau txhua tus, tab sis ntawm no peb feem ntau tham txog lub luag haujlwm tseem ceeb uas yuav tsum muaj nyob rau hauv feem ntau ntawm qhov kev pom zoo zaum kawg.
b- Cov Khoom Siv Yuav Tsum Tau:
1. relay tester.
2. Multi-meter.
3. Hlau.
c- Mechanical check thiab visual inspection:
1. Tshawb xyuas lub cev puas tsuaj lossis qhov tsis xws luag.
2. Tshawb xyuas lub ntiaj teb.
3. Txheeb xyuas qhov taw qhia thiab LEDs.
4. Txheeb xyuas qhov kev hloov pauv rau kev ua haujlwm kom raug lossis luv CT yog tias muaj lossis cais tawm ntawm binary inputs / outputs.
d- Kev kuaj mob
1. Kho qhov hluav taws xob qhov hluav taws xob ntawm 125 volt DC.
2. Sau ntawv nyeem ntawm Ammeter nyob rau hauv cov ntaub ntawv ntawm tag nrho cov binary tso zis deactivated thiab nyob rau hauv cov ntaub ntawv ntawm binary tso zis activation.
3. Xam lub nra hnyav thaum lub sijhawm ua haujlwm ib txwm ua (txhua qhov binary output deactivated) thiab kev ua haujlwm txawv txav (nyob rau hauv cov ntaub ntawv binary output activated) los ntawm kev sib npaug ntawm qhov voltage thiab nyeem ntawm ammeter.
4. Sib piv qhov tshwm sim nrog lub nra uas twb muaj lawm nyob rau hauv phau ntawv relay.
e- Kev sib txuas thiab kev xeem cov txheej txheem:
i. Binary input / output check:
1. Txhawm rau kuaj binary input: Siv cov ntsuas binary input DC voltage ntawm txhua qhov kev tawm tswv yim thiab txheeb xyuas cov xwm txheej ntawm cov tswv yim los ntawm cov relay's software lossis los ntawm relay's LCD [yog tias muaj].
2. Txhawm rau kuaj binary tso zis: Siv cov relay's software koj tuaj yeem yuam binary tso zis kom kaw rau qee lub sijhawm thiab siv ntau lub 'meter' koj tuaj yeem ntsuas binary tso zis tiv thaiv nws yuav tsum nyob ib ncig ntawm xoom uas qhia tias cov zis binary raug kaw.
ii. Kev ntsuas
1. Teem CT ratio thiab VT piv uas tau siv los ntawm kev sib txuas los ntawm kev kawm txog cov tswv yim.
2. Los ntawm kev siv FREJA peb txhaj cov hluav taws xob theem nrab thiab theem nrab ntsuas tam sim no
3. Sau tus nqi tseem ceeb nyeem ntawv ntawm tus relay lub vijtsam.
iii. High impedance sib txawv tiv thaiv rau Bus Bar Circuit Court (87B)
1. Raws li kev teeb tsa zaum kawg ntawm lub relay teeb (Tswj relay-Resistor Metrosil) tus resistor yuav tsum tau hloov kho kom muab qhov xav tau kev khiav hauj lwm voltage uas lub relay yuav khiav lag luam.
2. Numerical relay teeb tus nqi ntawm qhov thib ob tam sim no thiab tus nqi ntawm cov resistor yog ntxig rau relay ces Lub relay xam qhov tseeb voltage tus nqi los ntawm kev muab tus nqi ntawm qhov thib ob tam sim no thiab tus resistor ces muab piv nrog rau qhov chaw voltage nqi.
– Mus kuaj Pick up and drop off test:-3. Kho tus nqi ntawm series resistor raws li qhov kawg qhov chaw thiab ntsuas nws tus nqi.
4. Txhaj tam sim no thiab maj mam nce tus nqi kom txog thaum relay ua haujlwm.
5. Ntsuas qhov nqa tam sim no thiab qhov hluav taws xob hla ntawm cov resistor series.
- Xeem Sijhawm:
6. Siv ib txwm qhib kev sib cuag ntawm lub relay, kho lub sverker mus rau (nyob rau lub sij hawm), thiab siv ib tug voltage ntau tshaj li qhov teeb tsa tus nqi.
ib iv. Transformer sib txawv (87T):
1. Transformer sib txawv yog ib qho kev tiv thaiv uas tsis tshua muaj impedance nyob rau hauv uas tam sim no vector ntsuas raws li amplitude thiab lub kaum sab xis thiab ntsuas tam sim no los ntawm transformer sab yog summed ua ke los xam qhov txawv tam sim no, Yog hais tias tus nqi tam sim no tshaj qhov teeb tsa tus nqi relay generates
lus txib.
2. Txhawm rau kuaj qhov PICK UP & poob ntau zaus, Txhaj tam sim no thiab nce nws cov nqi maj mam kom txog thaum lub sijhawm ua haujlwm relay, ntsuas tus nqi ntawm cov tshuaj txhaj tam sim no thiab suav qhov sib txawv thiab txwv tam sim no, Rov ua dua rau txhua qhov tam sim no transformer qhov chaw, txo tus nqi tam sim no maj mam. mus txog rau relay poob,
Ntsuas qhov tam sim no thiab rov ua dua rau txhua qhov chaw tam sim no transformer.
3. Txhawm rau kuaj lub sijhawm kuaj: Muab ib qho kev sib txuas ib txwm qhib los ntawm kev xa tawm raws li kev tiv thaiv txawv txav; Txhaj tam sim no ntau tshaj qhov teeb tsa tus nqi, thiab ntsuas lub sij hawm tripping.