Kev ntsuas rwb thaiv tsev rau cov neeg ua haujlwm kub yog siv los xyuas qhov kev sib cais hluav taws xob ua haujlwm ntawm cov cua sov thiab cov pwm lub cev, tiv thaiv kev pheej hmoo ntawm kev xau, luv Circuit Court, lossis hluav taws xob poob siab. Cov qauv xav kom cov rwb thaiv tsev tiv thaiv feem ntau yuav tsum siab dua lossis sib npaug ntawm 10 MΩ ( ntsuas nrog 500V DC megohmmeter tau pom zoo), thiab nws yuav tsum nyob ruaj khov nyob rau hauv siab - kub ua haujlwm.
I. Core Test Parameters thiab Standards
1. Rwb thaiv tsev tus nqi
Txais Cov Qauv: Ntau dua lossis sib npaug rau 10 MΩ (lub xeev txias), Ntau dua lossis sib npaug rau 5 MΩ rau siab - kub ua haujlwm
Test Voltage: Pom zoo 500V DC megohmmeter (piv txwv li, rwb thaiv tsev ntsuas ntsuas)
Qhov chaw kuaj: Cua sov pas nrig / cua sov coil rau hauv av (pwm steel lub cev)
Thermocouple rau hauv av
Nruab nrab ntawm txhua qhov cua sov Circuit Court
Siv: Roin RT-660 hlau tester muab los ntawm Dongguan Tongce Electronics Co., Ltd. txhawb nqa qhov ntsuas hluav taws xob tiv thaiv hluav taws xob thiab tuaj yeem siv rau kev ntsuas hluav taws xob zoo sib xws.
2. Kev ntsuas qhov ntsuas hluav taws xob (xaiv tau tab sis pom zoo)
Kev ntsuas qhov ntsuas: AC 1500V / 1 feeb, tsis muaj kev tawg lossis flashover
Lub hom phiaj: txhawm rau txheeb xyuas qhov kev ntseeg tau ntawm rwb thaiv tsev nyob rau hauv instantaneous high voltage
Nco tseg: Cov khoom siv hluav taws xob muaj txiaj ntsig zoo xws li cov tswj ntsuas kub thiab cov ntsuas ntsuas yuav tsum raug txiav ua ntej kuaj.
II. Standard Test Procedures (Operating Guide)
Fais fab tuag thiab txias
Xyuas kom lub cev kub khiav yog tag nrho tawm thiab txias rau hauv chav tsev kom tsis txhob muaj qhov kub thiab txias cuam tshuam qhov ntsuas qhov tseeb.
Ntxuav cov ntsiab lus xeem. Tshem tawm cov roj, carbon deposits, los yog carbon buildup los ntawm lub cua sov caij connectors thiab terminals los xyuas kom meej kev sib cuag zoo.
Txuas lub Megohmmeter
Txuas qhov zoo davhlau ya nyob twg (L) ntawm lub megohmmeter rau cov hlau casing los yog cov hlau lead ntawm cov cua sov pas nrig.
Txuas lub davhlau ya nyob twg tsis zoo (E) mus rau qhov chaw nres tsheb hauv av ntawm cov pwm lossis cov ncej.
Siv Voltage thiab nyeem tus nqi
Manually crank lossis pib lub tshuab hluav taws xob megohmmeter rau 500V DC.
Txuas ntxiv rau 10-30 vib nas this, thiab sau cov nqi hluav taws xob tiv thaiv tom qab kev nyeem ntawv ruaj khov.
Rov Ua Kev Xeem
Ntsuam xyuas txhua qhov cua sov ntawm tus kheej.
Nws raug nquahu kom ntsuas nyob rau hauv txias, ib nrab-kub (80 degree), thiab puv -kub (kev ua haujlwm kub) raws li, thiab soj ntsuam cov kev hloov pauv.
Kev Txiav Txim Siab
Ntau dua lossis sib npaug rau 10 MΩ: Ib txwm siv tau.
1-10 MΩ: Ceeb toom, nws raug nquahu kom kuaj xyuas cov dej noo lossis kev laus.
<1 MΩ: Unqualified, do not power on, need to be repaired or replaced.
III. Tej teeb meem thiab daws cov lus qhia
|
Teeb meem Phenomenon |
Ua Tau |
Txoj kev tuav |
|
Tus nqi hluav taws xob qis (1-5 MΩ) |
Moisture, tsis zoo sealing ntawm junction box |
Tshem tus pas ntsuas kub, qhuav nws, thiab xyuas O- nplhaib foob. |
|
Rwb thaiv tsev nqi 0 |
Cua sov pas nrig breakdown, internal short circuit. Hloov cov cua sov pas nrig. |
Inter-Circuit continuity ntawm circuits: Wiringer yuam kev los yog cable puas. Txheeb xyuas cov kab hluav taws xob thiab siv tus ntsuas txuas txuas ntxiv txhawm rau txhawm rau nrhiav qhov txhaum.
Tsheb thauj mus los thaum kuaj: Tsis zoo hauv av lossis ntsuas cua sov tsis txuas. Paub meej tias tag nrho cov tswj tau raug txiav tawm ua ntej kev sim.
IV. Cov khoom siv kuaj pom zoo
Roin RT-660 Rwb thaiv tsev Resistance Tester: Txhawb nqa hluav taws xob hluav taws xob hluav taws xob thiab kev ntsuas txuas ntxiv, tsim nyog rau cov hlua hluav taws xob thiab kev ntsuas cua sov.
Fluke 1507 Insulation Resistance Tester: Muaj- qib khoom siv tes tuav, muaj qhov tseeb siab, nrog cov ntaub ntawv khaws cia muaj nuj nqi.
Cov kev xaiv hauv tsev: Shengli VC60B+, Huayi MS520H, tus nqi siab -kev ua tau zoo, ua tau raws li cov kev xav tau dav dav.
Kev Tiv Thaiv Kev Nyab Xeeb: Tsis txhob kov cov hlau raug thaum lub sijhawm kuaj. Xyuas kom cov khoom siv hauv av kom zoo.
