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hipot tester

Hipot tester Includes various insulation and withstand test instruments,which are used for withstand test and insulation test,some of them can be used as high voltage power supply for high voltage testing.

1.Safety, with good insulation effects.
2.Over-current protection, zero-starting protection, sound and light alarm.
3.Can be customized according to customer needs.
More details,Please contact us!


The general name of high voltage test instruments includes various insulation and withstand test instruments and equipment used for high voltage test, such as megohm meter, ac/dc high voltage test equipment, etc.


II.Kinds of hipot tester:


III.General Feature:

1.Very Low Frequency AC Hipot Test :

1). Output voltage ratings: 30kV/50kV/60kV/80kV

2). Output frequency: 0.1Hz, 0.05Hz, 0.02Hz

3). Measurement accuracy: 3%

4). Positive and negative voltage peak errors: ≤ 3%

5). Voltage wave form distortion: ≤ 5%

6). Use condition: indoor and outdoor; temperature: -10℃+40℃

7). Humidity: ≤ 85%RH


2.withstand voltage tester for AC/DC 5kV:

1).Testing voltage:AC:0.5kV5kV  ±5%

2).Leakage current setting value:AC0.220(mA)   adjustable

3).Leakage current setting accuracy:±5%

4).Output power:100VA.

5).Output waveform: 50Hz Sine waveform

6).Timing:199s±5%  manual∞  adjustable.


3.DC High Voltage Generator:

1).Rated voltage: 60kV/120kV/200kV/300kV

2).Rated current: 2mA/3mA/5mA

3).Power supply: AC220V±10%, 50Hz

4).Ripple factor : ≤0.5%

5).Voltage  measuring  accuracy1.0%(full  scale)± 1character

6).Current  measuring  accuracy1.0%(full  scale)± 1character

7).Environment temperature: -1040℃

8).Relative humidity: ≤85(no condensate)


4.AC/DC Hipot Test Set:

1).Output power(Capacity)---customized

Dry type high voltage testing transformer:1.50kVA-30kVA

SF6 high voltage test transformer:1.5kVA-300kVA

Oil-immersed high voltage test transformer:1.5kVA-300kVA


2).Output voltage ---customized

Dry type high voltage testing transformer:50kV-120kV(ac)8kV or 140kV(dc)

SF6 high voltage test transformer:50kVA-300kV

Oil-immersed high voltage test transformer:50kV-300kV


5.High Voltage Insulation Resistance tester:

1).Withstand voltage: AC, 10kV, 50Hz, 1min (measuring line and shell).

2).Temperature and humidity: 30℃ +60℃  85%RH.

3).Storage temperature & humidity: 15℃ +55℃  90%RH.

4).Battery powered: two group battery charging together, 16V lithium ion rechargeable battery ,2600mAH ,7.4v 2200mAH or charging side measurement.


IV.Certification of CE


More details please return to our catalogue or contact us!





1. Are you manufacture ?

Yeah, we are manufacturer professional in design and produce high voltage test equipment with nearly 20 years experience .


2. When can I get the price ?

We usually quote within 6 hours after get your inquiry . If you are very urgent to get price, please feel free to contact us by Wechat&Whatsapp +86-13720145441 or send us by email, so that we will regard your inquiry priority .


3. Do you supply OEM?

 Of course, we supply OEM.


4. What about leading time for production ?

Honestly , it depends on order quantity and the product . Usually lead time is within 7 working days after deposit .


5. What is your terms of delivery ?

We accept EXW, FOB, CFR, CIF, DDU, etc . You can choose the one which the most convenient and cost effective for you .


6. What’s your payment terms :

TT payment, L/C at sight, Paypal, Western union, etc.


7. How much is the shipping cost and time ?

This is depend on the size and weight of your product, and the method of shipping ( by sea/ by ari/ by Express) and your designated port . Kindly afford us above information to check shipping cost and time for you .


8. What’s the warranty period ?

Our warranty period is one year free and lifelong maintenance .

If produce damage within one year ( not man-made damage ), we will send you spare parts for replacement .  After one year, maintenance is paid service .

9. What kind of Certificate you can provide ?

We can provide CE mark, ISO9001 quality certificate the third part Calibration Certificate (CNAS), factory test report .


10. Do you have Technical Backup to all customers from different countries ?

Surely, we have rich experience engineer to afford professional technical support and quick response to your technical questions .

We are manufacture with rich on site testing experience and understand how to deal with your problems . And our engineer can visit your company to afford technical support face to face if necessary .


1.Very Low Frequency AC Hipot Test :

1). Data of current, voltage, wave form can be directly sampled at high voltage side, so the data is real and accurate.     

2). Over-voltage protection: If the output exceeds the set limit of voltage, the VLF hipot test set will shut-down to protect itself, the actuation time is less than 20ms.

3). Over-current protection: VLF hipot test set is high-low voltage dual protection in the design, the accurate shut-down protection can be made according to the set value at high voltage side; If the current on low voltage side exceeds the rated current, the instrument will take shut-down protection, the actuation time are both less than 20ms.

4). A high voltage output protective resistor is provided in the voltage boost body in the design and this eliminates the need of additional protective resistor connected outside.   


2. withstand voltage tester for AC/DC 5kV:

Technical parameter

1Testing voltage:AC:0.5kV5kV  ±5%

2Leakage current setting value:AC0.220(mA)   adjustable

3Leakage current setting accuracy:±5%

4Output power:100VA.

5Output waveform: 50Hz Sine waveform

6Timing:199s±5%  manual∞  adjustable

7)Power source:AC220V±10%  50Hz±2Hz

8)Environment:RH≤75%RH, Temperature :0℃40℃

 There is no strong electromagnetic interference source around, no large amount of dust and corrosive gas, good ventilation


3. DC high voltage generator


1DC high voltage generator(dc high voltage tester) is portable at site,light in weight & small size

2With AIPWM technology, avoid the inaccuracy linearity of  PWM ,High precision, exact measure,and  Ripple factor ≤0.5 %

3) AI Zinc Oxide arrester and oil-immersed transformer measure function ,test report can be saved directly,accuracy ≤0.5 %, 75% UDC 1mA function button.

4) with AI technology to set over-voltage protection and over-current protection instead of digital dial switch which can only set voltage value,Error ≤1% .

5) Full range of smooth voltage regulation, voltage regulation precision ≤1%, stability  ≤1%, voltage and current error  ≤ 1.0%±1

6) With the total time T1 and segment timing T2, and arbitrary voltage, current timing function

7) dc high voltage generator(dc high voltage tester)  adds a calendar and time function


4. AC/DC Hipot Test Set:


1) Enhanced 320*240 LCD Display (Daylight visible), with high speed thermal printer.

2) 4 way measurement mode of HV voltage, HV current, LV voltage, LV current, high precision sensor and high performance 14 bit AD acquisition chip.

3) Full keyboard operation mode, intelligent working process, optional automatic mode and manual mode.

4) Real-time display of HV voltage and current, LV voltage and current, time and withstand voltage results, intuitive and clear.

5) Perfect over-voltage, over-current protection, arbitrary set output voltage, HV current limit, LV current limit and timing range.

6) Automatically control the voltage back to zero before the next step, to ensure safety.

7) With the insulation resistance test function, directly reflect the insulation strength of the tested products.

8Automatic voltage withstand timing after reaching the set voltage, automatically step-down to zero after the end of timing.

9) Automatic cut-off voltage output, when over the set HV current or LV current, it will step-down to zero, send out sound and light alarm.

10)  Anti-interference design. Able to work in the harsh electromagnetic environment.


2. High Voltage Insulation Resistance tester:


● Designed in strict accordance with safety standards, output voltage: 500v 1000v, 2500v, 5000v, 10000v.

● This instrument automatically calibrates the function and automatically calibrates the accuracy before testing.

● This instrument has the actual test product charging voltage measurement function, leakage current measurement function, automatic discharge function.

● It can automatically measure and memorize R15S, R60S and R10min values, and automatically display the polarization index (PI), the induced absorption ratio (DAR) test value and test time.

● Excellent anti-interference performance. When the interference current reaches 600mA, the instrument still guarantees test accuracy and strong anti-interference ability. It is especially used in 110KV and above large-capacity transformers and long-distance power cable power systems.

● Automatic discharge: The advanced high-voltage discharge technology is used to quickly discharge the capacitive sample. The discharge voltage is measured in real time during discharge (test sample voltage is 0v).

● Internal rechargeable lithium battery power supply or AC power supply, the real AC and DC does not affect the test accuracy.

● The analog pointer and the digital display coexist. The digital value reflects the accuracy of the insulation resistance of the test object. The analog pointer can reflect the dynamic change of the insulation resistance during the test.

● The alarm function during boosting, the buzzer warning has high voltage output, away from the sample, and the warning sound stops automatically after the test.

● Battery power digital display and undervoltage alarm protection.

● Intelligent battery charging management can effectively prevent battery overcharging.

●Automatic shutdown function: The instrument has an automatic shutdown function, and the measurement is completed for 5 minutes and automatically shuts down.

● Short circuit protection, the instrument will not be burnt out in the short circuit condition (use the voltage level within 2500V as much as possible in the nuclear phase).


Factory test and shippment

We will do factory test for every product before devilering, to ensure qualified of the product.

We will pack the product carefully and choose suitbale shippment for client,to ensure the safe arrival.

Installation and commissioning

we provide installation and commissioning assistance to get you up and running. Domestically within China or internationally, we will be there to support you. During the installation, integration and operation of a new test system, a variety of special services are involved. If it ’ s necessary, we can offer oversea commissioning service for our clients.

Service and support

In any fault case of our product, we will arrange engineer to deal with your problem within 24hours

Service guarantee

Contact purchase

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