Vim li cas nws thiaj li yuav tsum tau ua qhov kev ntsuas kev tiv thaiv hluav taws xob?
Txhawm rau txiav txim siab seb cov cuab yeej siv tau zoo li cas los muab tso rau hauv kev pabcuam uas nws tau tsim thiab muab qee lub hauv paus rau kev kwv yees seb puas muaj kev noj qab haus huv yuav nyob lossis yog tias muaj kev puas tsuaj uas tuaj yeem ua rau lub neej luv luv. Cov txiaj ntsig no tuaj yeem khaws cia ua cov ntaub ntawv sib piv rau yav tom ntej thiab kom nkag siab txog qhov sib txawv ntawm rwb thaiv tsev thaum tu.
Txhawm rau ua qhov kev xeem, peb xav tau lub rwb thaiv tsev tiv thaiv tester. :
Cov kev ceev faj hauv qab no yuav tsum tau saib xyuas, ua ntej pib qhov kev sim.
- Kev tshuaj xyuas qhov muag yuav tsum tau ua kom ntseeg tau tias cov plua plav thiab noo noo tau raug tshem tawm ntawm cov khoom raws li kev sim.
- Xyuas kom cov khoom sib cais los ntawm lwm lub tshuab txuas, uas tuaj yeem rov qab mus rau lwm cov khoom siv lossis cov khoom siv hluav taws xob tsis raug kuaj.
- Kev kuaj xyuas yuav tsum tau ua kom paub tseeb hauv av rau cov khoom hauv kev sim thiab ntsuas cov cuab yeej txuas nrog hauv av thiab cov khoom siv
xws li xob laim ntes, capacitor thiab VT / tswj transformer kom cais tawm.
Kev ntsuas rwb thaiv tsev:
Rwb thaiv tsev tester leads yuav tsum txuas ntawm ib theem conductor thiab lub ntiaj teb. Kev ntsuas hluav taws xob yuav tsum raug xaiv raws li cov lus 4.1. Lub sijhawm
tuaj yeem yog 1min txog 10 min, thiab kev nyeem ntawv yuav tsum tau noj tom qab lub sijhawm no. Ua ntej disconnecting qhov kev xeem coj cov khoom kuaj yuav tsum tau tso tawm los ntawm
hauv av. Tib cov txheej txheem yuav tsum tau ua raws li lwm theem.
Cov yam ntxwv cuam tshuam:
Ntau yam xws li kub,
humidity, thiab noo noo cuam tshuam rwb thaiv tsev tus nqi. Tus nqi ambient kub yuav tsum tau sau tseg thaum lub sij hawmkev xeem. Qhov kev sib raug zoo ntawm qhov kub thiab qhov rwb thaiv tsev yog inversely proportional.
Cov txheej txheem xeem:
- Lub sij hawm luv luv los yog qhov chaw nyeem ntawv:
Nyob rau hauv txoj kev no cov cuab yeej megger txuas nrog rwb thaiv tsev yuav tsum tau kuaj thiab siv rau 60sec. Kev nyeem ntawv raug kaw thaum kawg ntawm lub sijhawm ntawd.
- Lub sijhawm tiv thaiv txoj kev:
Nyob rau hauv txoj kev no, kev ntsuam xyuas yog ncaj ncees ntawm qhov kub thiab txias muab cov ntaub ntawv ntau ntxiv txog cov xwm txheej ntawm rwb thaiv tsev tshaj qhov chaw
ntsuas. Qhov ntsuas hluav taws xob yuav tsum tau thov rau 10 feeb thiab nyeem ntawv txhua 15sec rau thawj feeb thiab txhua feeb rau 10 feeb.
Dielectric absorption factor, polarization Performance index yuav suav tau raws li hauv qab no, Dielectric absorption factor=60sec reading/ 30sec reading. Polarization Performance index=10min nyeem / 1min nyeem. Cov txheej txheem rwb thaiv tsev tuaj yeem raug cais raws li qhia hauv cov lus 4.2.
- Kauj ruam los yog ntau-voltage txoj kev:
Txoj kev no yuav tsum muaj ntau qhov ntsuas hluav taws xob megger, nyiam dua nrog 1: 5 qhov sib piv voltage. Ib qho kev txo qis ntawm rwb thaiv tsev tiv thaiv ntawm qhov hluav taws xob ntau dua yog ib qho kev qhia ntawm qhov tsis muaj zog rwb thaiv tsev.