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90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
Specifications
Brand Name :
Fanke High-voltage
Model Number :
VLF-90KV/0.1Hz
Certification :
ISO9001
Place of Origin :
China
MOQ :
One Set
Price :
Negotiable
Payment Terms :
L/C, T/T
Supply Ability :
20 sets / month
Delivery Time :
20~30 working days
Packaging Details :
Export standard wooden case with fumigation free
Test Principle: :
Very-low frequency technology principle
Usage :
0.1Hz Withstand Voltage test for 45KV and below MV power cable and generator
Design Feature :
Two HV boosters, 40KV/50KV for single one
Component :
Controller，HV booster，Compensation capacitor Load
Test Frequency :
0.1Hz, 0.05Hz, 0.02Hz
Max.Test Voltage :
0~ 90KV(peak), continuously adjustable
Load Range: :
0.1Hz, ≤0.5μF ; 0.05HZ,≤0.1μF ;0.02HZ ≤2.5μF
Test Accuracy :
No Less Than 3%
Output Waveform :
Good Sine Wave,Voltage, Waveform distortion ≤ 5%
HV Booster Using Way :
Single or In Series Connection
Duty Cycle :
60mints
Description

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:

Sn Description

Quantity
1 Control unit 1 unit

2

 50KV HV Booster 1 unit
40KV HV Booster 1 unit
3 Discharging rod 1 unit
4 Load Capacitor, 0.04µF 1 unit
5 HV Test/Connection Cables 1 set
6 Earth cable 1 unit
7 20A Fuse 5 unit
8 Print paper 2 unit
9 Manual 1 unit
10 Factory test report 1 unit

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


VI.Test Connection Figure

1. For XLPE cable under 90KV test voltage

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

2. For Generator stator under 50KV test voltage


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

VII. Other typical model

Model Voltage range Test Frequency Maximum load
VLF-30KV/0.1Hz 0~ 30KV 0.1HZ, 0.05HZ, 0.02HZ 5.5μF
VLF-40KV/0.1Hz 0~ 40KV 0.1HZ, 0.05HZ, 0.02HZ 5.5μF
VLF-50KV/0.1Hz 0~ 50KV 0.1HZ, 0.05HZ, 0.02HZ 5.5μF
VLF-80KV/0.1Hz 0~ 80KV 0.1HZ, 0.05HZ, 0.02HZ 2.5μF
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,

Ｕ0＝Single-phase rated voltage of cable

Test time :60mints

2 For generator stator

Ｕtest＝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);:

Product tags

vlf high voltage testing

,

high voltage cable tester

,

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

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Product Detail
Brand Name :
Fanke High-voltage
Model Number :
VLF-90KV/0.1Hz
Certification :
ISO9001
Place of Origin :
China
MOQ :
One Set
Price :
Negotiable
Contact Supplier
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator
90KV Very Low Frequency VLF High Voltage Testing Set For Cable And Generator

WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.

Active Member
7 Years
hubei, wuhan
Since 2003
Business Type :
Manufacturer, Exporter, Seller
Main Products :
High Voltage Cable Testing Equipment, AC Resonant Test System, AC Hipot Test Equipment
Total Annual :
6000000-10000000
Employee Number :
100~120
Certification Level :
Active Member
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