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    GD-4138H Cable Fault Locating System hits:

    General Information

    GD-4138H Cable Fault Locating System is important tool to maintain all kinds of cables. It is compatible equipment that can trace, locate the underground cables, with fault distance measurement and HV generation. As it is movable device, it is convenient to carry on-site. If acoustic locator is used together, it can locate accurate position of cable fault point.

    Application is underground cable, aerial cable, power cable, local cable, communication cable and fiber cable.


    Typical fault to be detected includes

    1. High impedance flash-over fault
    2. High impedance leak
    3. High/low resistive grounding
    4. Short-circuit fault
    5. Open-circuit fault
    6. Poor connection/Disconnection


    GD-4138H system includes:

    • GD-4138H main frame (Coupling device, Sphere gap, HV generator are inside)
    • GD-4133 Multiple pulse cable fault tester
    • GD-4132 Cable Fault Locator




    GD-4138H Specification

    Input power supply

    AC 220V,50Hz

    Output voltage

    DC 0-8kV, 0-16kV, 0-32kV

    Rated power

    2kVA

    DC flash-over current

    63mA

    Max. impulse current

    500mA

    Discharging method

    DC HV, one time, cycle

    Cycle discharging time

    3-6 seconds

    Environmental temperature

    0-40

    Humidity

    <75% RH

    Altitude

    <1000m

    Insulation level

    A

    Allowable input impulse energy

    <2048J

    Allowable input impulse voltage

    <32kV

    Weight

    about 120kg.




    GD-4133 Multiple Pulse Cable Fault Tester

    It is used to measure fault distance. Under LV pulse mode, it can be used alone. 


    7inch LCD screen, friendly interface.

    Multiple distance locating method:

    Ø Low voltage pulse method: it is suitable for the locating of the low resistance fault, short circuit fault, open circuit fault. It also can be used in the measurement of the cable length, the intermediate joints, T joints, and cable termination joint. This method also can be used to correct the wave velocity.

    Ø Pulse current method: It is suitable for distance measurement of the high resistance fault, breakdown fault. Using the current coupler to collect signals from the earth wire, it makes the user far away from the high voltage. This method is safe and reliable.  

    Ø Multiple pulse: the advanced way to measure distance. The waveform is easy to identify and the accuracy is high.

    200MHz real-time sampling. Max. 0.4m measurement resolution. It has small dead zone and is special for the short cable and near fault cable.

    Touch screen and press key operation. The cursor can be dragged.

    PIP copy(pic. temporary storage)

    Ø There will be a main window and three temporary storage windows could check three waveforms together.

    Built-in embedded operating system

    Ø Special software management for software upgrade, backup and restore.

    Scale function

    Ø One starting point,10 contacts, one cable fault and one full length could be setting.

    Ø Display scale and testing waveform at the same time

    Waveform storage and communication with computer.

    Ø Internal storage of waveforms.

    Ø With USB, to download or upload data

    Ø Communication with computer

    Power management

    Ø Backlight weakens if no operation in 2mins and power off in 10mins if no operation.

    Ø Built-in Polymer Lithium-ion battery.

    Ø Working time is up to 5 hours for each use.

    Ø Strong case, easy to carry.



    Specification

    Locating methods:

    Low voltage impulse method

    Impulse current method

    Multiple impulse method

    Max. Sampling frequency:

    200MHz

    Gain range:

    0-70dB

    Low voltage impulse voltage:

    30V

    Max.resolution:

    0.4m

    Max. Locating range:

    100km

    Dead zone:

    2m

    Battery:

    Nickel-metal hydride rechargeable batteries, endurance time over 5 hours

    Communication interface:

    USB

    Power supply:

    Input AC220V,50Hz,current 2A,charge for 8 hours

    Dim.:

    274×218×81mm

    Weight:

    3.5kg

    Operating Temperature:

    -10℃40℃

    Humidity:

    5-90%RH

    Elevation:

    <4500m



    GD-4132 Cable Fault Locator

    • Acoustic and magnetic signal are received at the same time. Strong anti-interference ability.
    • Waveform display.
    • Acoustic magnetic waveform display.
    • Locating the fault point and route tracing.
    • With earphone to hear noise.
    • 320*240 LCD screen display, friendly interface.
    • Built-in Li battery, with fast charger.
    • It will power off automatically if not operating after 15mins or low battery.
    • Small size, easy to carry.


    Specification

    Acoustic signal bandwidth

    Center frequency 400Hz, bandwidth 200Hz

    Signal gain

    80db.

    Locating accuracy

    0.1m

    Power supply

    Built-in Li battery, nominal voltage 7.4V, 3000mAh, continuous working 9 hours.

    Charger

    Input AC220V±10%, 50Hz, nominal output 8.4V, DC1A

    Dimension

    270*150*210mm.

    Weight

    1.5kg.

    Use condition

    Temperature -10--40, humidity 5-90%RH, altitude <4500m.


               
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    Address: F/10, Block B7, JinYinTan Modern Enterprise City, Dongxihu District, Wuhan, China
    Email: info@hvhipot.com
    Skype: hvhipot@hotmail.com
    Tel: +86-27-85568138
    Fax: +86-27-65606183
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