Wuhan Huaying Electric Power Tech & Science Co., Ltd

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Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy

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Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy

China Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy supplier
Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy supplier Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy supplier Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy supplier

Large Image :  Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy

Product Details:

Place of Origin: Wuhan Hubei China
Brand Name: Huaying
Certification: ISO
Model Number: HYCF

Payment & Shipping Terms:

Minimum Order Quantity: 1 Set
Price: Negotiable
Packaging Details: Wooden Case
Delivery Time: 7 Working Days
Payment Terms: T/T L/C
Supply Ability: 200 sets per month
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Detailed Product Description
Function: Underground Cable Route Tracer Cable Fault Detector Application: Integrated Cable Fault Finder/underground Pipe Detector
Device: Cable Fault Tester/Power Cable Fault Locator/Cable Fault Detector Dimension: 225*165*125mm
Weight: 2kg Warranty: 1 Year Free And Lifelong Maintenance

Multi Functional HV Power Cable Fault Locator System High Positioning Accuracy

 

 

Product name

Cable Fault Locator HYCF

 

Introduction


The cable-fault detector is a testing device of good integrity. It can test on the High Resistance Flashover Fault, Grounding High and Low Resistance Fault, Short & Off Circuit on the Cable Fault and Poor contact and etc. If being equipped with sounding method and locating instrument, it can exactly detect the fault point. Furthermore, it especially applies to test for
various power cable and communication cable.

 

 

Principle

The electric wave signal will be reflected to injection point in power cable in the special point whose impendence is not match the character impendence.. The character impendence has no connection with the length of cable. HYCF is based on such an electric wave reflection to design the test procedure.

The reflection factor of P is defined as follow:

 

P=Uf/Ui=(Zo-Zc)/(Zo+Zc)

 

Uf is defined as the amplitude of reflection voltage

Ui is defined as the amplitude of injection voltage

Zo is defined as the character impendence

Zc is defined as the impendence of any point of cable

 

If  Zc is equal to Zo, it is said this point of cable is ok. So there is no reflection for normal cable.

If the cable is short circuit to the earth, the impendence of the fault point is 0, the reflection factor P is -1 for this cable.

The impendence of the disconnection point of the cable is infinity. The reflection factor for the discontinuity point is 1.

 

The tester HYCF inject a electric wave signal to the cable from the test point of cable and then measure the reflection of electric wave. If there is negative amplitude voltage is captured it is said there is a short fault in the cable. The time difference from injection time to receive the first reflection wave can be calculated from the reflection curve sampled. And then the distance from injection point to fault point can be calculated by the time and transmission velocity of electric wave in the cable.

The discontinuity of power cable can be measured by the same way of the short circuit fault. The tester sample the reflection curve and then calculate the time  from injection time to the time getting reflection factor of 1. And then the distance can be calculated from the time  and the transmission velocity of electric wave.

Divided by the injection mode the test method could be defined as low voltage impulse test mode and high voltage impulse test mode.

 

 

Technical index

 

The longest testing distance is 32KM (100KM for the open-wire line)
Testing .dead zone is 1M.
Resolution of reading is 1M
Power dissipation is 5VA
Service condition :

Environment temperature 0℃~+40℃

Terminal temperature -10℃~+50℃

Relative humility 90%RH

Dimension: 225×165×125mm3

Weigh: 2kg

 

Contact Details
Wuhan Huaying Electric Power Tech & Science Co., Ltd

Contact Person: Chloe

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