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Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment

    Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers
     
    Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers
    • Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers
    • Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers
    • Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers
    • Buy cheap Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment from wholesalers

    Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment

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    Brand Name : Fanke High-voltage
    Model Number : VLF-80KV/0.1Hz
    Certification : ISO9001
    Price : Negotiable
    Payment Terms : T/T
    Supply Ability : 20 sets / month
    Delivery Time : 15-20working days
    • Product Details
    • Company Profile

    Very Low Frequency High Voltage Cable Testing Equipment , Vlf Cable Testing Equipment

    Very Low Frequency High Voltage Cable Testing Equipment , Acceptance Test Eqipment , VLF Cable Tester


    I. Application :


    Model VLF-80KV/0.1Hz is designed to perform on-site withstand voltage test with very-low frequency technology for power generators or 35KV and below XLPE power cable.Compared with Hipot test set at main power frequency, VLF HV Test Set just needs much small test power capacity(About 1/500 in theory). Its size and weight also is decreased greatly. Specially the appearance of surveillance can discover the generator insulation abnormal phenomena such as surface corona, discharge and so on.


    The test set consists of a control box, two HV boosters, a compensation capacitor and a discharge rod.Based on electronic frequency conversion and microprocessor controlled technology, it has excellent performance.


    It is prohibited to boost voltage without load, or to connect with resistive load. If the specimen capacitance is less than 0.05uF, the test set output waveform will be bad. For better performance, optional capacitor is necessary to connect.


    Until now , the designed test set also forms many different serialized model according to different withstand test applications through HV booster number of configurations in each set, The alike model can see other typical model at following clause.


    II. Supply list of this Model:


    SnDescription

    Quantity


    1VLF Measurement and Control unit1unit

    2

    50KV HV Booster1unit
    30KV HV Booster1unit
    3Discharging rod1unit
    4Load Capacitor, 0.04µF1unit
    5HV Test/Connection Cables1set
    6Earth cable1unit
    720A Fuse5unit
    8Print paper2unit
    9Manual1unit
    10Factory test report1unit

    III. Product Feature :

    1. Electronic frequency conversion
    2. Microprocessor Controlled
    3. Two HV boosters, 90KV output in series; or 40KV/50KV for single one
    4. Large LCD display
    5. Sine Wave Output
    6. Overvoltage protection, action time is less than 20ms
    7. Over current protection for both input and output side, action time is less than 20ms
    8. Output current/Voltagewave form is sampled at high voltage side directly
    9. HV Current Limiting Resistor inside
    10. Micro-printer inside
    11. Output voltage will not be affected by capacitive current during test since closed-loop negative feedback design


    VI. Optioonal Model and Test Range:


    ModelPeak voltageMeasuring rangeWeightTest object range
    VLF-3030KV0.1Hz,≤1.1µF

    Controller: 4 kg

    Booster: 25 kg

    Size: L*W*H

    323*174*323

    10KV and below voltage

    cable,generator

    0.05Hz,≤2.2µF
    0.02Hz,≤5.5µF
    VLF-5050KV0.1Hz,≤1.1µF

    Controller: 6 kg

    Booster: 45 kg

    Size: L*W*H

    357*210*365

    15.75KV and below voltage

    cable, generator

    0.05Hz,≤2.2µF
    0.02Hz,≤5.5µF
    VLF-6060KV0.1Hz,≤1.1µF

    Controller: 6 kg

    Booster: 50 kg

    Size: L*W*H

    357*220*370

    18KVand below voltage

    cable, generator

    0.05Hz,≤2.2µF
    0.02Hz,≤5.5µF
    VLF- 8080KV0.1Hz,≤1.1µF

    Controller: 8 kg

    Booster: 90 kg

    Size: L*W*H

    357*240*390

    35KV and below voltage

    cable, generator





    V.Test Connection Figure


    1. For XLPE cable under 80KV test voltage


    2. For Generator stator under 50KV test voltage


    VI.Test Model Selection


    1.For cable test

    Test peak voltage formula: Umax=3U0,

    0Single-phase rated voltage of cable

    Test time :60mints


    2. For generator stator

    test=1.414*βKU0,

    Utest---- 0.1Hz peak test voltage (kV);

    β-------0.1Hz and 50Hz voltage equivalent factor, usually taking 1.2;

    K------ Usually take 1.3 to 1.5, generally take 1.5;

    Uo----- Generator stator windings rated voltage (kV);:


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