Product Introduction
An impulse voltage generator is a device that generates impulse voltage waves. It is used to test the insulation performance of electrical equipment under atmospheric overvoltage and switching overvoltage. Therefore, an impulse voltage generator can generate not only lightning impulse voltage waveforms and lightning impulse voltage chopped waveforms, but also switching impulse voltage waveforms.
This series of impulse voltage generators can be used to conduct impulse voltage tests and other scientific research on insulator strings, long air gaps, bushings, instrument transformers, transformers, and other test objects.
Product Parameter (specification)
| Nominal lightning impulse voltage | ±200kV |
| Nominal capacity (energy) | 10kJ |
| Class capacitor | 1μF, 100kV oil-filled fully insulated package |
| voltage levels | 100kV per level, 2 levels in total |
| stages/stage capacity | 2/5 kJ |
| Output standard waveform and amplitude | 3 types |
| Synchronization range | greater than 20% |
| Operating duration | It can operate continuously when the voltage is less than 80% of the rated operating voltage; it can operate intermittently when the voltage is greater than 80% of the rated operating voltage |
| Amplitude adjustment error voltage difference | less than 1%, and the minimum output voltage is not greater than 10% of the equipment's nominal voltage |
| Synchronization error rate | less than 1% |
| Grounding resistance | less than 1Ω |
| Load capacity of this device | less than 5000pF |
| Base & Dimension & Weight |
Base: 1.8m × 1.2m, casters, movable. Height: Approx. 1.6m. Weight: Approx. 320kg |
Product Features
Multifunctional waveform output
- It can generate lightning impulse voltage waveforms, lightning impulse voltage chopped waveforms, switching impulse voltage waveforms, etc.
- Suitable for impact testing of various test objects such as insulator strings, long air gaps, bushings, instrument transformers, and transformers.
High precision and reliable synchronization
- High amplitude adjustment accuracy and stable output
- Wide synchronization range and low synchronization error rate
Safe use conditions
- Suitable for environments with normal altitude, temperature and humidity.
- A reliable grounding point is required, and the grounding resistance requirement is strict.
- The high-voltage end must maintain a sufficient safe distance from surrounding grounded objects.
Compact structure, mobile
- The base is equipped with casters, making the whole unit movable.
- The structure has a moderate height, making it easy to arrange.
Flexible working methods
- It can work continuously under low load.
- It can operate intermittently under high load to adapt to different testing needs.
Complete set
- Includes charging transformers, high-voltage silicon rectifiers, automatic grounding switches, charging protection resistors, capacitive voltage dividers, chopping devices, steepening gaps, manual/automatic control consoles, etc.
Product Application
1. Insulation performance test of electrical equipment
- Insulator string
- Casing
- Mutual inductor
- Transformer
2. Air gap discharge test
- Impulse voltage withstand test for long air gaps
3. Overvoltage Protection Research
- Simulate atmospheric overvoltage (such as lightning).
- Simulated operating overvoltage
4. Cutoff and Steep Wave Tests
- Lightning impulse voltage cutoff test
- Steepening gap correlation test
5. Scientific Research
- Other impulse voltage-related experiments in the field of high voltage technology
Company Qualifications
FAQ
Q: 1. How does an impulse generator work?
A: The impulse generator produces impulse voltage waves by charging main capacitors through a charging transformer and rectifier, then discharging them via a spark gap and wave-shaping resistors (front and tail resistors) to form the required waveform.
Q: 2. What is lightning impulse?
A: Lightning impulse is a type of impulse voltage wave used to test insulation performance of power equipment against atmospheric overvoltages. The generator can produce lightning impulse voltage waves.
Q: 3. Will lightning strike a generator?
A: The manual does not state whether lightning will strike a generator. However, the impulse generator is designed to test equipment such as transformers, bushings, and insulators against lightning impulses.
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