Sign In | Join Free | My chinacsw.com
China WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD. logo
WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.
Professional High Voltage Test Equipment Manufacturer
Active Member

7 Years
Home > VLF High Voltage Testing >

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

Product Categories
WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD.
Contact Now

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

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

Contact Now

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:

high voltage vlf hipot instruments

      

vlf cable testing equipment

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

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

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)
 
You May Like
Inquiry Cart 0