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- Description
- Specifications
- Applications
- Advantages
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Description
The GDCY-900kV/90kJ Impulse Voltage Test System is a large-capacity professional high-voltage lightning impulse test device, specially used for lightning surge withstand insulation performance verification of ultra-high voltage power equipment.
Adopting multi-stage series charging and low-inductance closed-loop design, it outputs standard 1.2/50μs lightning impulse voltage stably, accurately simulates natural lightning overvoltage impact on power grid equipment, and scientifically evaluates insulation breakdown, flashover characteristics and safety reliability of HV/UHV electrical assets.
With rated voltage 900kV and single impulse energy 90kJ, it fully meets type tests, factory inspection and acceptance tests of transformers, GIS, HV bushings, insulators and switchgears, strictly complying with IEC 60060 international high-voltage test standards.
Specifications
| Parameter | Specification |
| Model | GDCY-900kV/90kJ |
| Rated Impulse Voltage | 900kV |
| Single Impulse Energy | 90kJ |
| Standard Waveform | Lightning impulse 1.2/50μs |
| Waveform Tolerance | Within IEC standard allowable range |
| Control Mode | Fully automatic computer control + manual emergency operation |
| Matching Measuring Device | Special resistive-capacitive impulse voltage divider |
| Protection Functions | Charging interlock, overvoltage protection, abnormal discharge protection, emergency stop |
| Applicable Standards | IEC 60060-1, IEC 60060-2, GB/T 16927 |
| Working Environment | Indoor laboratory, temperature: 5℃~40℃, low humidity non-condensing |
Applications
Lightning impulse withstand test for power transformers and instrument transformers
· Impulse insulation test for GIS, HV circuit breakers and high voltage switchgear
· Surge performance verification of HV bushings, composite insulators and power hardware fittings
· Lightning overvoltage withstand testing of HV power cables and cable terminals
· Type test, routine inspection and handover acceptance test of UHV power transmission and distribution equipment
· Insulation damage mechanism research and lightning protection performance testing in HV laboratories
Advantages
Strict International Standard Compliance
Fully designed and calibrated according to IEC 60060-1 & IEC 60060-2 impulse voltage test standards, test data globally recognized and valid for engineering certification.
Excellent Low-Inductance Waveform Performance
Optimized high-voltage loop layout ensures standard 1.2/50μs lightning waveform, high symmetry, low distortion and ultra-high test repeatability.
High Safety Fully Interlocked Operation
Multi-level charging and discharge safety interlocks effectively avoid misoperation, instantaneous high-voltage hazard and abnormal discharge accidents, fully protecting operators and test equipment.
Intelligent Fully Automatic Testing
DSP centralized control, whole process unattended automatic test, automatically save waveform data and generate standardized test reports, greatly improving laboratory test efficiency.
Stable High Energy Output
90kJ large impulse energy, meets harsh lightning impact test requirements of high voltage and large capacity power equipment.
Long Service Life & Low Maintenance
Adopt high-stability pulse capacitors, high-performance sphere gaps and industrial-grade control components, low failure rate, suitable for long-term frequent type test work.
FAQ
Q: What standard impulse waveform does this system output?
A: Standard natural lightning impulse waveform 1.2/50μs, fully conforming to IEC international high voltage impulse test standards.
Q: What HV equipment can GDCY-900kV test?
A: Mainly transformers, GIS, HV bushings, insulators, switchgears, power cables and other UHV power equipment lightning insulation withstand tests.
Q: Is the test process fully automatic?
A: Yes. Automatic charging, triggering, waveform sampling, data storage and report generation, simple and safe intelligent operation.
Q: What international standards does it comply with?
A: Strictly comply with IEC 60060-1, IEC 60060-2 and national high-voltage impulse test standards.
Q: What is the warranty and after-sales service?
A: 1-year whole machine warranty, lifetime technical support, on-site commissioning, calibration and maintenance services.
