Cable Outer Sheath Fault Location System

1. Qhov chaw ua haujlwm

The 220VAC through a full wave rectifier to achieve excellent high-power conversion transform to the required identification special signal, the signal through the connecting line applied on the cable to be located, accurately find out the cable faults by "step voltage method" or "current" measuring method.

1.1. Kauj ruam voltage method

Yog tias qhov teeb meem hauv av tshwm sim hauv cov kab faus, peb tuaj yeem siv txoj hauv kev sib txawv kom pom qhov txhaum. Cov txheej txheem yog siv qhov ntsuas hluav taws xob ntawm qhov ntsuas qhov ntsuas ntawm qhov txhaum cable thiab hauv av, thiab ib qho hluav taws xob faib nrog qhov chaw nkag yog tsim nyob ib ncig ntawm qhov chaw nkag ntawm lub cable. Tsis muaj qhov sib txawv ntawm cov hluav taws xob hluav taws xob nrog tib lub vojvoog ntawm txhua qhov chaw, tab sis muaj peev xwm sib txawv ntawm ob lub ntsiab lus sib txawv nrog lub vojvoog sib txawv (A, B cov ntsiab lus), thiab thaum qhov kev ncua deb ntawm ob lub ntsiab lus raug kho, qhov sib txawv muaj zog dua thaum ob lub ntsiab lus nyob ze rau qhov chaw.

Siv qhov tshwj xeeb no, peb tuaj yeem txav A, B ob lub ntsiab lus maj mam nce mus rau qhov chaw nruab nrab. Thaum qhov chaw txhaum nyob raws nraim ntawm A thiab B, qhov sib txawv muaj peev xwm dhau los ua xoom. Yog tias koj txuas ntxiv mus dhau qhov txhaum, qhov polarity ntawm qhov sib txawv ntawm qhov yuav raug thim rov qab, yog li kev txav mus los tuaj yeem txiav txim siab qhov chaw hauv av.

1.2. Txoj kev tam sim no

Thaum ib qho ntawm qhov cable tau txais qhov txhaum hauv av, peb pom qhov txhaum ua rau siv cov kev taw qhia sib txawv ntawm tam sim no ua ntej thiab tom qab faulted point. Txoj kev twg yog qhov uas txhawb cov teeb liab siab voltage ntawm impulse rau faulted cable, ua qhov txhaum taw tes tawm, thiab ces nws yuav los rau hauv ua opposite polarity tam sim no ua ntej thiab tom qab fault point, tab sis qhov txhaum point tam sim no yog yam tsawg kawg nkaus.

Peb tuaj yeem siv tau txais clamp los kuaj xyuas qhov yuam kev raws li cov ntsiab lus saum toj no. Clip qhov txais clamp rau cable, ces lub thawv txais yuav qhia ib qho kev taw qhia. Thaum txuas ntxiv mus dhau qhov txhaum taw tes, ces yuav tau txais qhov sib txawv polarity tam sim no, xws li txav mus los kom raug txiav txim qhov taw tes hauv av.

2. Ua haujlwm voltage

Hloov cov kev ua haujlwm tseem ceeb los tiv thaiv kev ua haujlwm voltage, kom tau txais 0-10kV ntawm qhov hluav taws xob, thiab tom qab ntawd ua kom tiv taus hluav taws xob rau cable.

Tech parameter

1）Output voltage:0-10kV（Square wave）
2）output current:200mA
3）Output capacity:2kVA
4）Frequency adjust:Min:0.4Hz, Max:1Hz(range adjustable)

Nco ntsoov

1. Txwv tsis pub kov cov kab hluav taws xob txuas hluav taws xob thiab kuaj kab hluav taws xob kom tsis txhob raug mob.

2. Don't starting up when connect cable, shut down power supply when finishing test.

3. Cov cuab yeej yuav tsum tsis txhob tiv thaiv yog tias muaj ntau tshaj 200mA tam sim no

4. Cov cuab yeej tsis tuaj yeem pib thaum qhov hloov pauv voltage tsis nyob ntawm xoom.

5. Thov cais lub hau rov qab los xyuas 9V roj teeb thaum tus txais tsis tuaj yeem hloov kho rau xoom.

Cov ntawv ntim khoom

1. Cable sheath locator mainframe 1 Unit

2. HV tso zis kab (dub 50kV5m) 1pcs

1. Cov kab hluav taws xob 1pcs

2. Cov kab hauv av 1pcs

3. FuseΦ520 8A 2pcs

4. Cov neeg siv phau ntawv 1pcs

5. Ib qho kev sojntsuam 1 pcs

6. Ib tug ncej txuas kab 1pcs

7. Tam sim no tau txais clamp 1pcs

8. Txais 1pcs

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