## **1. Dab tsi yog dc hipot?**
A ** DC HIPOT ** (HAIV NEEG) TEST SHOURING TAG NRHO COV NTAUB NTAWV KHWV TAU LOS RAU COV YOOJ YIM RWBAUG.
Hloov chaw siv AC zoo li tus resonant lossis AC hipot tester, nws siv ** khov kho voltage ** thiab ntsuas xau tam sim no los ntawm rwb thaiv tsev.
** Cov ntu tseem ceeb muaj: **
* High {- voltage dc tau
* Voltage divider (ntsuas)
* Microsiafeter lossis digital toast tam sim no meter 'meter' meter '
* Tswj vaj huam sib luag & kev nyab xeeb
* Tawm tsam
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## ** 2. HOM PHIAJ **
Lub hom phiaj tseem ceeb ntawm DC HIPOT Testing yog:
* ** Rwb thaiv tsev watchwb kev ntsuas ** - Nco ntsoov rwb thaiv tuaj yeem tswj hwm thiab tshaj {voltage tej yam.
* ** Kev xau dej tam sim no ** - ntes cov rwb thaiv tsev rwb thaiv tsev, noo noo, lossis paug.
* ** Kev xeem xov xwm ** - Muab cov cuab yeej ntsuas HV cov ntaub ntawv mus kuaj rau ntawm -}}} chaw siv.
* ** Kev kuaj xyuas txij nkawm ** - Ntsuam Xyuas Rwb Thaiv Tsev Kev Noj Qab Haus Huv Sijhawm.
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## ** 3. Cov Ntawv Thov **
DC HIPOT Testers yog siv rau:
* ** HV / EHV lub zog hluav taws xob "(tshwj xeeb tshaj yog cov roj qub {}}}} XLPE siv VLF / AC hloov)
* ** MOTORS & GALLATORS **
* ** Hloov Switchgear & busbars **
* ** Motacitors **
* ** Hloov pauv (cov rwb thaiv tsev winding) **
* ** AEROSPACACE HLAU & TRANTINGS **
* ** KHWV CABLE & KOMMECOMICICICICIFICIED kab **
* ** High -} voltage mroundcor Cheebtsam **
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## **4. Yuav Siv DC Hipot Li Cas(Cov txheej txheem raug teb) **
>Txhua zaus yuav tsum ua raws cov chaw tsim khoom tshwj xeeb phau ntawv thiab kev nyab xeeb cov cai.
** Kauj Ruam 1 - Kev Npaj **
* Cais tawm cov khoom xeem thiab txuas thaj chaw ruaj ntseg.
* Tshawb xyuas thiab ntxuav cov khoom kuaj kom tshem tawm cov dej noo / av.
* Ua kom ntseeg tau thaj chaw xeem tau cordoned thiab ceeb toom cov paib tso.
** Kauj Ruam 2 - Kev Txuas **
* Txuas tus lej HV zoo ** rau tus neeg xyuas coj ua.
* Txuas lub ** rov qab / av txhuas ** rau cov ntaub thaiv npog lossis sab hauv.
* Txuas cov cuab yeej ntsuas rau kev xau dej tam sim no.
** Kauj ruam 3 - Kuaj **
1. Pib nrog ** xoom voltage **.
2. Nce voltage maj mam nyob rau hauv cov kauj ruam (raws li ib tus qauv).
3. Tuav ntawm txhua kauj ruam mus ntsuas to zog tourability.
4. Tsa rau txoj kev ntsuam xyuas cov kev ntsuam xyuas thiab tswj cov nqi sijhawm (piv txwv li 1-15 feeb).
5. Cov ntaub ntawv to taub tam sim no.
** Kauj Ruam 4 - Kaw & Tawm Tawm **
* Txo voltage rau xoom.
* Siv lub tsev tsim tsa- Nyob rau hauv lossis sab nraud ** offease ** kom muaj kev nyab xeeb ntws los ntawm cov khoom xeem.
* Kev ua haujlwm tsis zoo ua ntej tuav.
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## ** 5. Qhov zoo ntawm DC HIPOT Testing **
* ** Lub teeb ci thiab portable ** rau kev siv teb.
* Yuav tsum tau ** lub zog tsawg dua ** ntau dua AC withstr kev xeem.
* Kev ntsuas kev ntsuas tam sim no yog ** ruaj khov dua ** (tsis muaj peev xwm them tau tam sim no hauv AC).
* Tsim nyog rau cov xaim ntev uas tsis muaj lub zog loj.
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## ** 6. Txwv li **
* ** Tsis tsim nyog rau niaj hnub extruded clesuded (xlpe) ** - tuaj yeem ua rau chaw nqi thiab ntev}} lub sij hawm rwb thaiv tsev kev puas tsuaj.
* Tsis tag nrho cov lej ua haujlwm AC kev ntxhov siab.
* Tsis tuaj yeem qhia tawm qhov tsis xws luag uas tsuas yog tshwm sim hauv kev hloov voltage.
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## ** 7. DC HIPOT - FAQS **
** Q1: Dab tsi yog qhov txawv ntawm DC hipot thiab ib megger? **
**A:**
* A ** Megger Je ** (Rwb thaiv tsev tsis kam kuaj) siv cov dc voltage (feem ntau 500-5000 v) thiab ntsuas tsis kam.
* A ** DC hipot ** Siv ntau dua DC voltage (txog pua pua kv) ua kom muaj kev tiv thaiv thiab xau kev ntsuas tam sim no.
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** Q2: Thaum twg kuv yuav tsum siv DC hipot hloov AC hipot? **
**A:**
* Siv DC hipot rau ** Kev kuaj xyuas ntawm ** -} rsulated lossis pilc cables **, motors, thiab pilc clesulated **, motors, thiab pilc cables **, motors, thiab pilc cables **, motors, thiab pilc clesulated lossis pilc cables **, cov motors, thiab cov motors, thiab cov roj miv.
* Siv AC lossis VLF rau kev coj noj coj ua niaj hnub XLPE thiab cov khoom siv uas ua haujlwm hauv AC kev ntxhov siab.
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** Q3: Dab tsi xau tam sim no lees paub? **
**A:**
Nyob ntawm cov khoom hom, hluav taws xob theem, thiab qauv. Piv txwv li, tsawg dua los yog sib luag rau 1 ma ib kv ntawm kev xeem voltage yog ib txoj cai ntxhib ib txwm muaj rau cov khoom loj, tab sis cov qauv IEc / IEEe muab cov kev txwv tshwj xeeb.
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** Q4: Kuv yuav xaiv DC hipot yog li cas Voltage? **
**A:**
Ua raws cov lus pom zoo tsim lossis siv cov qauv (piv txwv li, ieee 400, iec 60502). Feem ntau raws li cov cuab yeej ntsuas × qhov tseeb (piv txwv li, 1.5-3 ntsuas hluav taws xob).
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** Q5: Yuav DC Hipot Puas Rwb Thaiv Tsev? **
**A:**
Yog {{0} Thov siv ntau dhau Volfage lossis sim ntev dhau lawm tuaj yeem ua rau qee cov rwb thaiv tsev hom (tshwj xeeb xlpe cable). Nco ntsoov ua raws cov qib uas pom zoo thiab ncua.
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** Q6: Vim li cas thiaj li rho tawm tom qab DC Testing yog li tseem ceeb? **
**A:**
Vim tias cov khoom xeem (tshwj xeeb tshaj yog cov cable ntev) khaws cia tus DC tus nqi siab zoo li lub capacitor. Yog tsis muaj qhov tso tawm kom raug, nws tuaj yeem ua rau muaj kev chim siab txawm tias tom qab lub zog tawm.
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** Q7: Kuv puas tuaj yeem siv DC hipot rau kev kuaj mob ib nrab? **
**A:**
Tsis muaj {{- Pd kev kuaj xav tau AC lossis impulse voltage. DC yog siv rau withstand thiab to tam sim no kuaj, tsis yog pd ntsuas.
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** Q8: Cov qauv twg siv rau DC HIPOT Testing? **
**A:**
* ** IEEE 400 ** - Kev xeem sib tw thiab tshuaj ntsuam xyuas cov rwb thaiv tsev hauv cov ntaub thaiv npog hluav taws xob
* ** IEC 60060 - 1 ** - High-voltage kuaj cov txuj ci
* ** IEC 60502 ** - CABLEFER CABLE TSHAJ
* ** IEEE STD 95 ** - DC kev tshuaj ntsuam ntawm hluav taws xob cable