Xaiv AVLF AC HIPOT TesterYuav tsum muaj kev nkag siab koj cov kev xav tau lossis cov khoom siv uas nyob rau hauv no, thiab cov qauv kev pabcuam, thiab cov qauv kev pabcuam tsim nyog los pab koj xaiv VLF ACT HIPOT cov khoom:
1. Txhais koj daim ntawv thov
| Lus nug | Xav txog |
|---|---|
| Dab tsi voltage theem yog cov hlua nyob rau? | VLF cov neeg ua haujlwm yuav tsum tsim cov kev ntsuas ntsuas ntsuas 1 {}}}}} × × 5 × qhov cable voltage. |
| Dab tsi ntawm cov cable lossis rwb thaiv tsev? | XLPE, EPR, PILC? Ib txhia cov laus cov kab ke yuav xav tau kev kuaj mob ntxiv (e {{{} g {{1} {{2}. |
| Puas yog kev xeem rau kev ua haujlwm, txij nkawm, lossis daws teeb meem? | Rau commissioning, ib qho yooj yim VLF tej zaum yuav txaus .}}}}}}} options δ}. |
2. Qhov Tseem Ceeb Xaiv
A. Tso Tawm Voltage
Cov zis tso tawm ntau:20 KV, 30 KV, 40 KV, 60 KV RMS
Xaiv ib koog uas muab tsawg kawg2 × rated theem-rau-av voltagentawm koj lub kaw lus .
Piv txwv li: rau 15 KV chav kawm cable (8 {}}
B. Tso Tawm WaveFormform
Txhuam: Xav tau rau feem ntau cov qauv-ua raws li cov neeg tiv thaiv tsis ncaj ncees thiab ziab Δ kuaj .
Xwmfab / trapezoidal yoj: Pheej yig dua, tab sis tsis yog ib txwm lees paub rau PD / Tan δ .
Xyuas kom koj tester ntsibIEEE 400.2thiabIec 60502Waveform Zoo Yuav Tsum Tau .
C. Cov zis ntau
Feem ntau VLF testers ua haujlwm ntawm0.1 hz, qee qhov sib txawv (0 . 1-0.01 hz).
Qis dua zaus tso cai rau kev sim ua kom ntev dua tsis nce qhov loj me ntawm cov khoom .
3. Tswj nta thiab kev nyab xeeb
| Yam zoo | Kev piav txog |
|---|---|
| Kev Tswj Digital & Tso Duab | Tso cai programmable ramping, sij hawm, thiab kev soj ntsuam xyuas tau |
| Cov ntaub ntawv nkag | Qhov tseem ceeb rau kev hloov pauv thiab xa cia |
| Kev Nyab Xeeb Kev Nyab Xeeb & Nres Nres | Yuav tsum tau rau HV cov khoom siv |
| Pib Kaw | Nres kuaj yog tias puas raug kuaj pom |
| Tshem tawm haujlwm | Nyab xeeb rho tawm cov kab ke tom qab kuaj |
4. Portility & Felfe Yuav Tsum
| Yam tseem ceeb | Tus ntsis |
|---|---|
| Qhov hnyav & loj | Tseem ceeb rau kev ua haujlwm lossis ntsuas mobile |
| Ua-hauv log lossis cov leeg | Pab tau rau lub peev xwm |
| Lub zog tswv yim | Kuaj yog tias nws xav tauTxheem 120 / 230V AClossisLub Zog GeneratorRau kev siv teb |
5. Ua raws li cov qauv
Xyuas kom cov khoom siv ua raws li:
IEEE 400.2- Kev ntsuas kev tiv thaiv hluav taws xob sib xyaw siv vlf
Iec {60502-2, Cenelec HD 620- Nruab nrab voltage Kev sim
Ieee 400.3- yog tias ua PDD kev kuaj
Ieee 400.4- Yog tias siv Tan Delta Kev kuaj mob
6. Yeem muaj peev xwm los txiav txim siab
| Yam zoo | Kev siv |
|---|---|
| Tan Delta Ntsuas | Rau rwb thaiv tsev kev tshuaj ntsuam xyuas |
| Partial paug (PD) Kuaj | Rau kev nrhiav cov rwb thaiv tsev rwb thaiv tsev tsis xws luag thiab cov ntsiab lus tsis muaj zog |
| Lub sij hawm sau txog kev xav txog (TDR) | Txhawm rau pinpoint cov chaw ua txhaum (qee cov neeg ua haujlwm siab tau suav nrog nws) |
| PC software sib txuas | Rau cov ntawv tshaj tawm thiab cov ntaub ntawv tsom xam |
7. Cov Hom Nrig / Cov Neeg Muag Khoom
Wuhan uhv Lub Tshuab Hluav Taws Xob Hluav Taws Xob Technology co {}}}, ltd
https: // www . uhvtest . com / hypf-acter / hipot-testers {{9} HTML
8. Kev txiav txim siab nyiaj txiag
| Kev txawj | Kwv yees tus nqi (USD) |
|---|---|
| BASTER VLF HIPOT (20-40 KV) | $7,000 – $15,000 |
| VLF + TAN Delta | $15,000 – $30,000 |
| VLF + PD + TAN Delta | $30,000 – $60,000+ |
9. Daim Ntawv Teev Tseg rau Xaiv
| ✅ Saib cov khoom |
|---|
| Voltage ntau phim cable system |
| Sine yoj tawm cov zis, ua raws li IEEE / IEC cov qauv |
| Portable txaus rau cov teb |
| Xws li kev nyab xeeb nta |
| Kev txhawb nqa tiv thaiv kev kuaj (ntawm qhov tsawg kawg nkaus) |
| Yeem: TM Δ thiab PD kuaj mob |
| Txhawb Pib Ramp / Fut / Sijhawm Chaw |
| Muaj cov ntaub ntawv nkag mus / sau cov cim |
| Thim rov qab los ntawm kev tiv thaiv thiab kev pabcuam pabcuam |
Cov lus qhia zaum kawg
Rau cov nqi hluav taws xob lossis cov tshuab hluav taws xob siab: Xaiv cov qauv nrog kev kuaj mob tag nrho (Pd, tan Δ) .
Rau kev sim ua teb / commissioning: Ib qho yooj yim, portable vlf hipot teser yuav txaus .
Nco ntsoov txheeb xyuas cov qauv hauv zos / cov cairau HV xeem cov txheej txheem .