MEWOI-VLF3090KV-A 0.1Hz VLF Hipot Tester,Very-low-frequency high-voltage generator,VLF Hipot Test set

MEWOI-VLF3090KV-A 0.1Hz VLF Hipot Tester,Very-low-frequency high-voltage generator,VLF Hipot Test set

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MEWOI-VLF3090KV-A VLF Hipot Tester,Ultra-low-frequency high-voltage generator,Very-low-frequency high voltage test set

MEWOI OEM/ODM  Instruments Manufacturer

Configuration Options

OptionsOption 1(Basic)Option 2(Multifunctional)Option 3Option 4
30KV(One Booster)VLF AC Withstand Voltage TestVLF AC+Tan Delta(tgδ)VLF AC+Partial Discharge TestVLF AC+Tan Delta+PD Test
40KV(One Booster)VLF AC Withstand Voltage TestVLF AC+Tan Delta(tgδ)VLF AC+Partial Discharge TestVLF AC+Tan Delta+PD Test
50KV(One Booster)VLF AC Withstand Voltage TestVLF AC+Tan Delta(tgδ)VLF AC+Partial Discharge TestVLF AC+Tan Delta+PD Test
60KV(Two Booster)VLF AC Withstand Voltage TestVLF AC+Tan Delta(tgδ)VLF AC+Partial Discharge TestVLF AC+Tan Delta+PD Test
80KV(Two Booster)VLF AC Withstand Voltage TestVLF AC+Tan Delta(tgδ)VLF AC+Partial Discharge TestVLF AC+Tan Delta+PD Test

INTRODUCTION

The ultra-low frequency dielectric withstand voltage test is actually an alternative to the power frequency withstand voltage test. It can replace large-capacity resonant transformers when conducting power frequency withstand voltage tests on large generators, cables, etc. The ultra-low frequency high-voltage generator combines the advanced technology of modern digital frequency conversion, adopts microcomputer control, and fully automates boosting, bucking, measurement and protection. Due to the full electronics, it is small in size and light in weight, and has a large capacitive touch screen LCD display, which is clear and intuitive, and can display output waveforms and print test reports. It is very convenient to use.

It has been proved from many years of theory and practice at home and abroad that replacing the power frequency withstand voltage test with the 0.1Hz ultra-low frequency withstand voltage test can not only have the same equivalence, but also greatly reduce the size and weight of the equipment. It is about one-fifth of the power frequency, and the operation is simple. Compared with the power frequency test, it has more advantages. This is why this approach is commonly used in developed countries.

After more than ten years of continuous research and development, the production technology of ultra-low frequency high-voltage generators has become more lightweight and intelligent; it has been upgraded from the previous series output maximum voltage of 80KV to single-stage direct output of 0-90KV.

Nickname

Nickname: Ultra-low frequency high-voltage generator: ultra-low frequency withstand voltage tester, ultra-low frequency cable withstand voltage tester, ultra-low frequency generator withstand voltage tester, ultra-low frequency motor withstand voltage tester, program-controlled ultra-low frequency high-voltage generator, ultra-low frequency AC Pressure test equipment.

MAIN FEATURES

1,Advanced technology: digital frequency conversion technology, microcomputer control, pressure rise, pressure reduction, measurement, protection, etc,The test process is fully automated.

 2,Easy to operate: simple wiring, easy operation.
3,Comprehensive protection: multiple protection (over-voltage protection, over- current protection at high and low voltage sides), rapid action (when acting), action time ≤20ms), the instrument is safe and reliable.
4,Safety and reliability: the controller is connected with the low voltage of the high voltage generator, with photoelectric control, safe and reliable use.
5,The high and low voltage closed-loop negative feedback control circuit is adopted, and the output has no capacity rise effect.
6, Complete configuration: capacitive touch screen, LCD Chinese character display, automatic storage, automatic printing.
7,Auto Variable Frequency:0.1Hz-0.01Hz
8,Small volume and light weight: it is very convenient for outdoor operation.

TECHNICAL SPECIFICATION

 Model

Rated Voltage

 Load

 Fuse

 Weight

 

 

30KV /1.1

30kV(Peak Value)

Auto Variable Frequency:0.1Hz-0.01Hz

Capacity:≦10µF

 

 

8A

Controller: 4kg

Booster: 25kg

Suitable for withstand voltage test of cables and motors ≤11kV

 

 

60kV/1.1

60kV(Peak Value)

Auto Variable Frequency:0.1Hz-0.01Hz

Capacity:≦8µF

 

 

10A


 

 

 

80KV/0.5

80kV(Peak Value)

Auto Variable Frequency:0.1Hz-0.01Hz

Capacity:≦5µF


 

 

 

20A

Controller: 4kg

Booster 1(40KV): 25kg

Booter 2(40KV): 45kg

Suitable for withstand voltage test of cables and motors ≤35kV

 

 

 

90KV/0.5

90kV

Auto Variable Frequency:0.1Hz-0.01Hz

Capacity:≦5µF


 

 

 

20A


Performance Comparison of various withstand voltage test equipment:

 

Compare content

Power frequency withstand voltage

Frequency withstand

voltage

0.1Hz withstand voltage

DC withstand voltage

Equivalence

good

Good

Good

Bad

Insulation

destructive

small

small

small

big

Operation safety

low

low

high

A little low

Wiring

Complicated

Most

Complicated

Most easy

complicated

Volume and

weight

Heavy and big

Heavy and big

Light and small

size

Light and small

size


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