Wuhan Goldsol Co. Ltd| Manufacturer
Wuhan Goldsol Co. Ltd

China Manufacturer with main products: Very Low Frequency High Voltage Generator (VLF tester) which can be used to measure power cables, huge electric generator, huge transformer,...

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VLF High Voltage Test Generator

Supply Ability: 50 Set/Sets per Month
Shipping: 7-10 days
Payment Terms: T/T(Bank Transfer)
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Place of Origin: Hubei in China
Packaging Details: Aluminum alloy box inside and plywood case outside

Specifications

The VLF testers (Generator) are suitable for
testing cables, transformers, switchgear,
rotating machinery, and other
electrical apparatus. 

 SPECIFICATIONS
  
Input
: 220 ± 10% Volts AC, 50/60 Hz
Output-Voltage AC
: 30kV / 40kv / 50kV 
Output frequency
: 0.1Hz, 0.05Hz, 0.02Hz.
Stability of frequency
: Fluctuation < 0.5%
Measurement accuracy
: ±3%.
Positive and negative voltage peak errors
: ≤3%.
Voltage waveform distortion
: ≤5%
Protection
: Mains fuse.
  Over voltage protection.
  Over current protection.
  Protective HV resistor connected inside.
Construction
: temperature Indoor and outdoor : -10°C to + 40ºC.
  Humidity:≤85%
Ambient conditions of use
: 1) Cable for mains supply: 1 number.
 2) Interconnecting cable: 1 number.
 3) H.V. Test lead: 1 pair.
 4) Discharge rod: 1 number.
 5) Operating manual: 1 number. 


VLF ADVANTAGES:
 
· Easiest to use Fully automatic microcontroller
· Built-in printer
· True sine wave output
· Real-time display of actual output waveform
· Ergonomic, menu guided, large backlit LCD
· Storage of test results for later retrieval and print.
· Over voltage and current protected
· Variable frequency 0.1Hz, 0.05Hz, 0.02 Hz
· Data of current, voltage and waveform directly sampled at HV side.
· AC testing does not degrade good cable insulation
· Harmful space charges are not injected into the cable insulation
· No traveling waves are generated during testing
· Rugged and reliable design less prone to failure from transients


Load Ratings

 Type no.
 Frequency/Capacity
 Rated Test Voltage/Current/Capacitance
VLF-30/1.1
   0.1 Hz, ≤1.1µF
   0.05Hz, ≤2.2µF
   0.02Hz, ≤5.5µF
 
30kV/20mA
Test capacity:Up to10KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 
VLF-40/1.1
   0.1 Hz, ≤1.1µF
   0.05Hz, ≤2.2µF
   0.02Hz, ≤5.5µF
 
40KV/ 25mA
Test capacity:up to 13.8KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 
VLF-50/1.1
   0.1 Hz, ≤1.1µF
   0.05Hz, ≤2.2µF
   0.02Hz, ≤5.5µF
 
50KV/30mA
Test capacity: 15.75KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 
VLF-60/1.1
   0.1 Hz, ≤1.1µF
   0.05Hz, ≤2.2µF
   0.02Hz, ≤5.5µF
 
60KV/37mA
Test capacity:18KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 
VLF-70/0.5
 
   0.1 Hz, ≤0.5µF
   0.05Hz, ≤1.0µF
   0.02Hz, ≤2.5µF
 
70KV/40mA
Test capacity:25KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 
VLF-80/0.5
   0.1 Hz, ≤0.5µF
   0.05Hz, ≤1.0µF
   0.02Hz, ≤2.5µF
 
80kV/50mA
Test capacity:up to 35KV cable or generator
0.1Hz@1.1uF: up to 5KM of cable.
 

 


 

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