Sign In | Join Free | My himfr.com
Home > VLF High Voltage Testing >

90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator

    Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers
     
    Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers
    • Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers
    • Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers
    • Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers
    • Buy cheap 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator from wholesalers

    90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator

    Ask Lasest Price
    Brand Name : Fanke High-voltage
    Model Number : VLF-90KV/0.1Hz
    Certification : ISO9001
    Price : Negotiable
    Payment Terms : L/C, T/T
    Supply Ability : 20 sets / month
    Delivery Time : 20~30 working days
    • Product Details
    • Company Profile

    90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator

    90KV Very Low Frequency High Voltage Test Set For Cable And Generator , AC High Voltage Testing


    I. Product Description :

    This test set model VLF-90KV/0.1Hz is designed to perform on-site withstand voltage test with very-low frequency technology for power generators or 45KV 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.


    Based on electronic frequency conversion and microprocessor controlled technology, Model VLF-90KV/0.1Hz 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 set:


    SnDescription

    Quantity


    1Control unit1unit

    2

    50KV HV Booster1unit
    40KV 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 than20ms
    7. Over current protection for both input and output side, action time is less than20ms
    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


    IV. General Technical data:

    1. Output: 0~ 90KV(peak), continuously adjustable, output by shielded cable
    2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
    3. Load range: 0.1Hz, ≤0.5μF ; 0.05HZ,≤0.1μF ;0.02HZ ≤2.5μF;
    4. Measurement accuracy: 3 %
    5. Positive and negative voltage peak errors: ≤ 3%
    6. Voltage wave form distortion: ≤ 5%
    7. Power supply fuse tube:20A
    8. Time range:0-99min
    9. Power Input:220V±5%,50/60Hz, stability of frequency: fluctuation less than 0.5%
    10. Operation condition: Indoor and outdoor;
    11. Temperature: -10C--+40C;
    12. Humidity: ≤ 85%RH 7.
    13. Controller:356mm×280mm×220mm, 4kg,1 Piece
    14. 40KV High voltage Booster:320mm×188mm×360mm,25kg, 1 Piece
    15. 50KV High voltage Booster:320mm×188mm×360mm,50kg, 1 Piece


    V. Measuring and control software panel :


    VI.Test Connection Figure


    1. For XLPE cable under 90KV test voltage



    2. For Generator stator under 50KV test voltage



    VII. Other typical model


    ModelVoltage rangeTest FrequencyMaximum load
    VLF-30KV/0.1Hz0~ 30KV0.1HZ, 0.05HZ, 0.02HZ5.5μF
    VLF-40KV/0.1Hz0~ 40KV0.1HZ, 0.05HZ, 0.02HZ5.5μF
    VLF-50KV/0.1Hz0~ 50KV0.1HZ, 0.05HZ, 0.02HZ5.5μF
    VLF-80KV/0.1Hz0~ 80KV0.1HZ, 0.05HZ, 0.02HZ2.5μF
    Special requirement can be made by order

    VIII.Test Voltage standard by this test set


    1 For MV and below class XLPE cable:

    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);:


    Quality 90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator for sale
    Inquiry Cart 0
    Send your message to this supplier
     
    *From:
    *To: WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.
    *Subject:
    *Message:
    Characters Remaining: (0/3000)