AC and DC High Voltage Test Systems
Our AC Hipot Test Equipment is designed to ensure the reliability and safety of electrical insulation in various power systems. By applying high voltage to the equipment under test, our hipot testers can identify potential weaknesses in the insulation, preventing future failures and ensuring compliance with industry standards.
lizhvtesttech@gmail.com
+1 323 522 4623
Key Features:
- Wide Range of Voltage Output: Our hipot testers can provide a wide range of voltage outputs to suit different testing requirements, ensuring versatility and adaptability.
- High Precision and Accuracy: Equipped with advanced measurement technologies, our AC Hipot Test Equipment delivers precise and accurate test results, enabling users to make informed decisions.
- User-Friendly Interface: With an intuitive interface, our equipment is easy to operate, reducing the learning curve and increasing productivity.
- Safety Features: Our hipot testers come with built-in safety features, including overcurrent protection, zero start interlock, and emergency stop functions, ensuring the safety of operators and the equipment.
- Durable and Reliable: Designed for rugged use, our equipment is built to last, providing reliable performance even in harsh testing environments.
Applications:
- Transformers: Ensures the insulation integrity of power transformers.
- Cables: Tests the dielectric strength of high-voltage cables.
- Switchgear: Verifies the insulation properties of switchgear equipment.
- Motors and Generators: Checks the insulation resistance of motors and generators.
- Bushings: Assesses the dielectric strength of bushings.
Voltage Selection by Equipment Rating
| Equipment Rated Voltage | Recommended Test Voltage |
|---|---|
| ≤1kV | 2kV to 5kV |
| 1kV to 5kV | 5kV to 10kV |
| 5kV to 15kV | 10kV to 30kV |
| 15kV to 30kV | 30kV to 50kV |
| 30kV to 66kV | 50kV to 100kV |
| >66kV | 100kV and above |
Choosing the Right Transformer
| Test Scenario | Recommended Transformer Type | Reason |
|---|---|---|
| Testing low-voltage motors and small transformers | Dry-Type | Cost-effective and portable for on-site testing. |
| Testing medium-voltage transformers or cables | Oil-Immersed | Reliable insulation and cooling for medium to high voltages. |
| Testing GIS or ultra-high voltage systems | Gas-Insulated | Compact, sealed design suitable for high voltages and harsh environments. |
| Portable testing in a controlled environment | Dry-Type | Lightweight and easy to move for routine applications. |
| Long-duration high voltage testing | Oil-Immersed | Efficient cooling and insulation for extended test durations. |
| Testing in humid or extreme environments | Gas-Insulated | Hermetically sealed, unaffected by environmental conditions. |
Comparison of Test Transformers
| Parameter | Dry-Type Transformer | Oil-Immersed Transformer | Gas-Insulated Transformer |
|---|---|---|---|
| Voltage Range | Low to Medium (<100kV) | Medium to High (up to 750kV) | Ultra-High (up to 1000kV) |
| Cooling Method | Air-cooled | Oil-cooled | Gas-cooled (e.g., SF₆) |
| Portability | Lightweight and portable | Heavy, less portable | Compact but heavier |
| Environmental Suitability | Indoor, clean environments | Outdoor, harsh environments | Harsh or humid environments |
| Maintenance | Minimal | Moderate (oil testing required) | Minimal |
| Cost | Low | Moderate | High |
| Applications | Low-voltage systems, motors | Transformers, cables, switchgear | GIS, extra-high voltage systems |
Product Range:
- Portable AC Hipot Testers:
- Lightweight and portable, ideal for on-site testing.
- Suitable for testing medium voltage equipment.
- Stationary AC Hipot Testers:
- Designed for high voltage applications.
- Ideal for laboratory and manufacturing environments.
Technical Specifications:
- Input Voltage: AC 220V or 380V
- Output Voltage of Control Unit: AC 0-250V or 0-430V
- Output Current of Control Unit: 0-5A/10A/15A/50A (customizable)
- Capacity: 0-3kVA/5kVA/10kVA/15kVA/20kVA/30kVA/50kVA/100kVA (customizable)
- Output Voltage of HV Unit: 0-50kV/100kV/150kV/200kV (customizable)
- Output Current of HV Unit: 0-50mA/100mA/150mA/200mA/500mA/1000mA/2000mA (customizable)
- Timing Range: 0-9999s
- Environmental Temperature: -20℃ to 50℃
- Voltage Accuracy: ≤ 1.0% ± 1 digit (Full Scale)
- Current Accuracy: ≤ 1.0% ± 1 digit (Full Scale)
10kVA 100kV AC and DC High Voltage Test Systems
Control Unit Specifications
- Power: AC 220V ± 10%, 50Hz
- Capacity: 10kVA
- Rated Output: AC 250V
- Rated Output Current: 40A
- HV Voltmeter Range: AC 0-100kV, DC 0-140kV
- Accuracy: 1.0% of reading + 1 digit (F.S)
- LV Ammeter Range: 0-50A
- Accuracy: 1.0% of reading + 1 digit (F.S)
- Timing Range: 0-9999s
- Metering: Digital display
HV Unit (Oil Type Testing Transformer) Specifications
- LV Side Voltage: 0-200V
- LV Side Current: AC 0-50A
- HV Side Voltage: AC 0-100kV, DC 0-140kV
- HV Side Current: AC 100mA
- Capacity: 10kVA
- Rating: 100% rated 1 minute, 50% continuous
- Measuring Voltage: AC 0-100V
- No-Load Current: < 3.5%
- Impedance Voltage: < 8%
5kVA 50kV AC and DC High Voltage Test Systems
Control Unit Specifications
- Power: AC 220V ± 10%, 50Hz
- Capacity: 5kVA
- Rated Output: AC 200V
- Rated Output Current: 25A
- HV Voltmeter Range: AC 0-50kV, DC 0-70kV
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- LV Ammeter Range: 0-30A
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- Timing Range: 0-9999s
- Metering: Digital display
HV Unit (Oil Type Testing Transformer) Specifications
- LV Side Voltage: 0-200V
- LV Side Current: AC 0-25A
- HV Side Voltage: AC 0-50kV, DC 0-70kV
- HV Side Current: AC 100mA
- Capacity: 5kVA
- Rating: 100% rated for 1 minute, 50% continuous
- Measuring Voltage: AC 0-100V
- No-Load Current: < 4%
- Impedance Voltage: < 10%
15kVA 150kV AC and DC High Voltage Test Systems
Control Unit Specifications
- Power: AC 380V ± 10%, 50Hz
- Capacity: 15kVA
- Rated Output Voltage: AC 0-400V
- Rated Output Current: 37.5A
- HV Voltmeter Range: AC 0-150kV
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- LV Ammeter Range: 0-37.5A
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- Timing Range: 0-9999s
- Metering: Pointer and digital display
HV Unit (Oil Testing Transformer) Specifications
- LV Side Voltage: 0-400V
- LV Side Current: AC 0-37.5A
- HV Side Voltage: AC 0-150kV
- HV Side Current: AC 100mA
- Capacity: 15kVA
- Rating: 100% rated for 1 minute, 50% continuous
- Turns Ratio (HV/LV): 1500:1
- Measuring Voltage: AC 0-100V
- Accuracy: 1.0% of reading ± 1 digit (F.S)
- No-Load Current: < 4%
- Impedance Voltage: < 8%
30kVA 200kV AC and DC High Voltage Test Systems
Control Unit Specifications
- Power: AC 400V ± 10%, 50Hz
- Capacity: 30kVA
- Rated Output Voltage: AC 0-400V
- Rated Output Current: 75A
- HV Voltmeter Range: AC 0-100kV
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- LV Ammeter Range: 0-79A
- Accuracy: 1.5% of reading ± 1 digit (F.S)
- Timing Range: 0-9999s
- Metering: Pointer and digital display
HV Unit (Oil Testing Transformer) Specifications
- LV Side Voltage: 0-380V
- LV Side Current: AC 0-79A
- HV Side Voltage: AC 0-100kV
- HV Side Current: AC 300mA
- Capacity: 30kVA
- Rating: 100% rated for 1 minute, 50% continuous
- Turns Ratio (HV/LV): 1000:1
- Accuracy: 1.0% of reading ± 1 digit (F.S)
- No-Load Current: < 4%
- Impedance Voltage: < 8%
Recommended Capacities for Common Applications for AC and DC hipot test system
| Test Object | Test Voltage | Required Capacity |
|---|---|---|
| Small motors and transformers | 5kV | 1–3 kVA |
| Medium-voltage transformers (11kV) | 30kV | 5–10 kVA |
| Long cables (5km, 33kV) | 50kV | 50–100 kVA |
| High-voltage transformers (110kV) | 75kV to 100kV | 30–50 kVA |
| GIS systems (220kV) | 150kV and above | 100–200 kVA |
Why Choose Our AC Hipot Test Equipment?
- Compliance with Standards: Our equipment complies with international standards, including IEC, IEEE, and ANSI, ensuring reliable and standardized testing.
- Customizable Solutions: We offer tailored solutions to meet specific customer requirements, providing flexibility in testing scenarios.
- Expert Support: Our team of experts is available to provide technical support and guidance, ensuring you get the most out of your testing equipment.
Contact Us:
For more information about our AC Hipot Test Equipment or to request a quote, please contact us at email: Sale@hvtesttech.com or call us: +1 323 522 4623
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