Your Professional AC DC Hipot Test Set Supplier
Founded in 1992 and formally incorporated as Wuhan Moen Intelligent Electrical Co., Ltd. on November 12, 2012, with a registered capital of RMB 36 million, we are a professional technology company specializing in the research, development, and production of high-voltage test equipment. Our 8,000 m² facility in Wuhan East Lake High-Tech Development Zone houses dedicated production lines, R&D centers, and administrative facilities. With an experienced technical and production team, Moen focuses on core products including test transformers, series resonance systems, and other high-voltage testing equipment. Backed by years of industry experience, the company is committed to reliable manufacturing, continuous technical improvement, and providing practical solutions for global power utility and industrial customers.
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15kVA 50kV AC DC Hipot Test SetMEYD-W15kVA/50kV Power Frequency DC/AC Designed in accordance with national requirements, the Withstand Voltage Test Device has a single-frame core structure with robust coupling and little leakage
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10kVA 100kV AC DC Hipot Test SetSuitable for power systems, industrial and mining enterprises, and research institutions, this equipment conducts power frequency/DC high-voltage insulation strength tests on high-voltage electrical
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10kVA 50kV AC DC Hipot Test SetMEYD-W10kVA/50kV Power Frequency Withstand Voltage Test Set, optimized according to national standards, features a single-frame core structure with strong coupling and minimal leakage flux. Compact
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5kVA 100kV AC DC Hipot Test SetMEYD-W5kVA-100kV AC DC Hipot Test Set combines several monitoring and protection mechanisms. Featuring a multi-layered insulating construction with a distinctive look, it is small and lightweight.
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5kVA 50kV AC DC Hipot Test SetMEYD-W5kVA-50kV AC DC Hipot Test Set incorporates multiple monitoring and protection functions. Featuring a multi-layered insulation design with a novel appearance, it is compact and lightweight. The
Why choose us
Our Certificate
We are certified in ISO 9001 (Quality), ISO 45001 (Health & Safety), and ISO 14001 (Environment), ensuring high standards in all aspects of our operations.
Strong R&D Capability
Committed to technological breakthroughs, including investments to develop 750kV reactor solutions.
Experienced Technical Team
A growing team of 61 employees supporting product development, production, and customer service.
Complete Pre & After-Sales Service
From solution design and technical support to installation, maintenance, and fast response service.
5kVA 50kV AC DC Hipot Test Set
10 kVA AC DC hipot tester capacity 10 kVA, input voltage 110V/120V/220V, output 50 kV, 1 phase, optional box or desktop controller, manual, automatic and electric control, other capacities can be customized. The hipot tester is loved by high voltage testers for its ease and flexibility.
Product Parameter (specification)
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Test Transformer |
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Input Voltage |
0–200V |
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Input Current |
25A |
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Instrument Voltage |
100V |
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Rated High Voltage:AC |
0–50kV DC:0–70kV |
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Output Current |
100mA |
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Rated Capacity |
5kVA |
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Control Box |
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Input Voltage |
220V ±10% 50Hz |
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Output Voltage: 0–250V |
Output Current:0–25A |
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Output Capacity |
5kVA |
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Timing Range |
1S–99H |
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Ambient Temperature |
-20 °C to 50 °C |
Dual Mode Operation: Can switch between AC and DC testing modes, offering flexibility in testing different types of equipment.
Adjustable Voltage: Allows the user to set the required test voltage, accommodating various testing standards and requirements.
Leakage Current Measurement: Accurately measures and displays the leakage current to determine insulation integrity.
Safety Features: Includes interlocks, emergency stop buttons, and warning indicators to ensure operator safety during high-voltage testing.
Data Logging: Some models come with data logging capabilities to record test results for further analysis and documentation.

Applications of 5kVA 50kV AC DC Hipot Test Set
Manufacturing
Ensures that electrical products meet safety and quality standards before being shipped.
Field Testing
Used for on-site testing of installed equipment to verify insulation integrity and prevent failures.
Research and Development
Helps design and validate new electrical components and systems with robust insulation properties.
Power Generation
Test transformers, circuit breakers, and other high-voltage equipment.
Renewable Energy
Verify the integrity of solar panels, wind turbines, and associated wiring.
Laboratories
Conduct research and development tests with confidence.
Interpreting the Test Results of 5kVA 50kV AC DC Hipot Test Set
Pass Results
A pass result indicates that the DUT has successfully withstood the applied test voltage for the specified duration without exceeding the allowable leakage current limit. This means that the insulation system of the DUT is considered to be in good condition and can be expected to perform safely under normal operating conditions.
Fail Results
A fail result occurs when the DUT fails to meet the test criteria. There are several reasons why a test may fail.
Excessive Leakage Current
If the leakage current exceeds the allowable limit during the test, it is a clear indication of insulation problems. This could be due to factors such as moisture ingress, physical damage to the insulation, or aging of the insulation material.
Flashover
Flashover is a phenomenon where an electrical arc occurs across the surface of the insulation or between conductors. It is often accompanied by a sudden increase in current and can be visually observed as a spark. Flashover indicates a serious insulation failure and the DUT should not be used until the issue is resolved.
Breakdown
Insulation breakdown is a more severe form of failure where the insulation loses its ability to withstand the applied voltage. This can result in a complete short - circuit within the DUT, causing a significant increase in current and potentially damaging the tester and the DUT itself.
Components of 5kVA 50kV AC DC Hipot Test Set
Control Unit
The control unit supplies power and controls the testing process. It includes meters, timers, protection circuits, relays, and operation buttons or displays.
Testing Transformer (HV Unit)
The high-voltage transformer generates the required test voltage. It can be oil-immersed, dry-type, or SF6 gas insulated.
Power Supply System
Provides low-voltage AC input power to the equipment, usually from 0–250V AC.
High-Voltage Rectifier
Used in DC testing to convert AC high voltage into stable DC high voltage.
Protection Circuits
Protect the equipment and operator from overload, overcurrent, and short-circuit conditions.
Display and Monitoring System
Displays voltage, current, test time, and testing status during operation.
Operating Principle of 5kVA 50kV AC DC Hipot Test S
High-Voltage Generation
The control unit sends low-voltage power to the testing transformer, which increases it to a high test voltage.
Insulation Testing
The high voltage is applied to the equipment under test to check the insulation strength.
Leakage Current Monitoring
If the insulation is good, only a very small leakage current will flow during the test.
Defect Detection
If the insulation has cracks, moisture, contamination, or aging, the leakage current will increase or breakdown may occur.
AC Hipot Testing
AC testing simulates normal operating conditions and is effective for detecting moisture and major insulation defects.
DC Hipot Testing
DC testing is more sensitive to local insulation defects and is commonly used for cables and surge arresters.
Typical Procedure of 5kVA 50kV AC DC Hipot Test Set
Setup
Connect the tester to the device under test, ensuring proper grounding and safety measures.
Select Mode
Choose AC or DC mode depending on the testing requirements.
Adjust Voltage
Set the desired test voltage according to the standards or specifications for the device.
Start Test
Apply the test voltage and monitor the leakage current.
Evaluate Results
Compare the measured leakage current against acceptable thresholds to determine if the device passes or fails the test.
Safety Check
Ensure the device is safely discharged after testing, especially when using high DC voltages.
Certificates




FAQ
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