High Voltage Insulation Equipment
LZGF DC Hipot Tester – Reliable High-Voltage Testing for Power Equipment
The LZGF Series DC High Voltage Generator is a specialized testing device designed for field applications in power sectors, industrial plants, and utilities. It performs DC withstand voltage tests and leakage current measurements on critical equipment like transformers, cables, and zinc oxide arresters.
Key Features
High Stability: Advanced PWM modulation and voltage feedback ensure ripple-free output (±0.5% accuracy).
Robust Protection: Overvoltage, overcurrent, and zero-closing protection with adjustable thresholds.
0.75x Voltage Mode: Dedicated function for testing zinc oxide surge arresters (U1mA reference voltage).
Compact & Portable: Lightweight design for field use, rated for discharge durability.
Product Parameters
Technical Parameters
| Specifications | 200/2 | 200/3 | 200/5 | 300/2 | 300/3 | 300/5 |
| Rated voltage（kV） | 200 | 200 | 200 | 300 | 300 | 300 |
| Rated current（mA） | 2 | 3 | 5 | 2 | 3 | 5 |
| rated power（W） | 400 | 600 | 1000 | 600 | 900 | 1500 |
| Control box quality（kg） | 5.5 | 6.0 | 6.5 | 6.5 | 6.5 | 7.5 |
| Pressure cylinder quality（kg） | 8.7 | 9 | 9 | 11 | 11 | 11.5 |
| Double cylinder height（mm） | 970 | 970 | 970 | 1250 | 1250 | 1250 |
| Voltage accuracy | ±(1.0%Reading + 2 words) | |||||
| Current accuracy | ±(1.0%Reading + 2 words) | |||||
| Ripple coefficient | ≤0.5% | |||||
| Voltage stability | When the power supply voltage changes by ±10%≤1% | |||||
| Overload capability | No-load voltage can exceed 10% of rated voltage for 10 minutes | |||||
| The maximum charging current is 1.25 times the rated current | ||||||
| power supply | Single phase communication 50Hz 220V±10% | |||||
| Way of working | Intermittent use: rated load 30 minutes | |||||
| 1.1 times rated voltage usage: 10 minutes | ||||||
| Way of working | temperature：-10℃～+40℃ | |||||
| Relative humidity: no more than 85% at room temperature of 25 ° C (no condensation) | ||||||
| Altitude: below 1500 meters | ||||||
| With capacitive load capacity | The tested product has unlimited capacity | |||||
| Charged with 1.5 times rated current | ||||||
| Structural features | Electrical insulation doubler | |||||
| Air insulation, no leakage | ||||||
| Operating box features | High-precision 0.75UDC1mA one-touch button (accuracy ≤1.0%), suitable for zinc oxide lightning arrester test | |||||
| Overvoltage protection using digital dial switch, at a glance | ||||||
| Portable chassis, more convenient on site | ||||||
Applications
| Industry | Test Type |
|---|---|
| Power Utilities | DC withstand voltage tests on cables, transformers |
| Industrial Plants | Leakage current measurement in circuit breakers |
| Metallurgy | Valve-type arrester conductance tests |
Technical Specifications
Output Voltage: Up to 200kV (customizable ranges)
Accuracy: ±1% for voltage, ±1.5% for current
Display: Digital readout for voltage/current with real-time monitoring
Compliance: Meets IEC 61010 and IEEE 4 safety standards
Why Choose LZGF DC Hipot Tester?
Reliability: High-power IGBT technology ensures consistent performance.
Safety:
Automatic discharge after testing
EMC shielding to reduce interference
Efficiency: 0.75x mode speeds up arrester testing by 30%.
For detailed specifications or custom configurations, contact our technical team.
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LZGF DC Hipot Tester – High-Voltage Generator for Power Equipment Testing