EN
GDCY-1000kV/100kJ Digital Intelligent Impulse Voltage Test System
GDCY-1000kV/100kJ Digital Intelligent Impulse Voltage Test System (±1000kV Peak, 100kJ Energy) with 10-Stage Marx Circuit, 1.2/50μs Lightning Impulse, 250/2500μs Switching Impulse, 2-5μs Chopped Wave, Computer Control, Digital Waveform Recording, for Power Transformer, GIS, Bushing, Instrument Transformer, Insulator Impulse Withstand Voltage Test.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDCY-1000kV/100kJ is a professional, laboratory-grade impulse voltage test system designed for insulation strength verification of high-voltage electrical equipment under lightning and switching overvoltage conditions. It fully complies with IEC 60060-1:2010 and GB/T 16927.1-2011 standards, adopting the classic 10-stage Marx multiplier circuit to generate high-voltage impulse waveforms with excellent stability and repeatability.
The system consists of a high-voltage DC charging power supply, a 10-stage impulse generator, a 0.2-level standard capacitor divider, a pneumatic chopping gap device, and a computer-based control and measurement system.It can generate standard lightning impulse full wave (1.2/50μs), standard switching impulse wave (250/2500μs), and lightning impulse chopped wave (2-5μs) with voltage utilization coefficient ≥90% and peak oscillation <5%. Equipped with a high-speed digital oscilloscope (100MHz bandwidth, 1GS/s sampling rate) and dedicated waveform analysis software, it automatically measures waveform parameters, calculates test results, and generates standardized test reports. With comprehensive safety protection including interlock, over-voltage, and emergency stop, it ensures safe and reliable operation in laboratory environments. Ideal for factory type tests, acceptance tests, and research experiments of power transformers, GIS, bushings, instrument transformers, insulators, and surge arresters.
Specifications
| Parameter | Specification |
|---|---|
| Rated Output Voltage | ±1000kV peak (positive/negative polarity switchable) |
| Rated Energy | 100kJ (10kJ per stage) |
| Circuit Structure | 10-stage Marx multiplier circuit |
| Stage Voltage | 100kV per stage |
| Stage Capacitance | 2μF per stage |
| Standard Lightning Impulse | 1.2/50μs (T1±30%, T2±20%) |
| Standard Switching Impulse | 250/2500μs (T1±20%, T2±60%) |
| Lightning Chopped Wave | 2-5μs chopping time, over-zero coefficient 0.25-0.35 |
| Voltage Utilization Coefficient | ≥90% (lightning wave, no load), ≥70% (switching wave) |
| Peak Oscillation | <5% |
| Waveform Repeatability | ≤±1% |
| Charging Voltage Accuracy | ≤±1% |
| Charging Voltage Instability | <±0.5% |
| Synchronous Discharge Range | ≥20% |
| Synchronous Discharge Error Rate | <2% |
| Ignition Range | 10%–100% of rated voltage |
| Measurement System | 100MHz bandwidth, 1GS/s sampling rate digital oscilloscope |
| Control System | Industrial computer + Windows-based dedicated software |
| Test Modes | Automatic test, Manual test, Step boost test |
| Data Management | Unlimited storage, PDF report generation, Excel export |
| Protection Functions | Interlock, Over-voltage, Over-current, Emergency stop, Automatic grounding |
| Working Time | ≥70%Un: 300s/charge-discharge cycle；<70%Un: 120s/charge-discharge cycle |
| Operating Temperature | 5℃ ~ +40℃ |
| Operating Humidity | ≤80%RH (non-condensing) |
| Altitude | ≤1000m |
| Compliance | IEC 60060-1:2010, IEC 60060-2:2010, GB/T 16927.1-2011, DL/T 848.5-2004, IEEE Std 4-2013 |
Applications
Core Test Objects
- Power transformers: 110kV-220kV power transformers and autotransformers
- GIS & gas-insulated switchgear: 110kV-220kV GIS, circuit breakers, disconnectors
- Bushings: 110kV-220kV transformer bushings and wall bushings
- Instrument transformers: 110kV-220kV current transformers (CT) and voltage transformers (VT)
- Insulators: suspension insulators, post insulators, insulator strings
- Surge arresters: 110kV-220kV metal oxide surge arresters
- Power cables: 110kV-220kV XLPE power cables
Typical Usage Scenarios
- Factory type tests: manufacturer factory acceptance tests (FAT) according to IEC and GB standards
- Substation commissioning: new equipment acceptance tests
- Research and development: insulation material performance research and new product development
- Third-party inspection: compliance testing and certification
- Power metrology institutes: calibration and traceability of impulse voltage measuring systems
Advantages
Q: What is the principle of impulse voltage generator?
Q: What waveforms can GDCY-1000kV/100kJ generate?
Q: What is the maximum load capacitance it can test?
Q: Does it support automatic test and report generation?
Q: What safety protection functions does it have?
FAQ
Q: Can impulse waveforms and parameters be customized?
A: Yes. All voltage, current, waveform front time, half-wave time and energy parameters of GDCL series can be customized according to your test standards.
Q: What standards does the generator comply with?
A: Fully designed in accordance with IEC 60060 high-voltage impulse test standards and national power industry impulse test specifications.
Q: What equipment is mainly tested by impulse current generator?
A: Mainly for lightning arresters, insulators, switchgear, grounding devices, lightning protectors and other HV components lightning surge withstand test.
Q: Is the system fully automatic?
A: Yes. Automatic charging, automatic triggering, automatic waveform collection, storage and report generation, simple and safe operation.
Q: Can it be used for both laboratory and field tests?
A: Modular split structure supports both fixed laboratory type tests and portable on-site impulse verification.
Q: What is the warranty period?
A: 1-year whole machine warranty, lifetime technical guidance, calibration and maintenance services.
