Understanding Repetitive Pulse Generators in High-Voltage Measurement
Repetitive pulse generators are critical tools in high-voltage measurement and testing environments. These devices produce precise, repeating electrical pulses with controlled parameters such as amplitude, frequency, and rise time. They are widely used to simulate transient conditions, test insulation materials, and validate the performance of high-voltage equipment.
How Repetitive Pulse Generators Work
A repetitive pulse generator typically consists of a charging circuit, energy storage unit (e.g., capacitors), and a switching mechanism. The charging circuit accumulates energy, which is then discharged at set intervals through the switch, creating a series of pulses. Advanced models allow users to adjust pulse characteristics like voltage levels (from a few kV to several hundred kV), repetition rates (from Hz to kHz), and pulse widths.
Key Applications
In high-voltage engineering, these generators are essential for:
Testing dielectric strength of materials
Evaluating the response of protective devices like surge arrestors
Calibrating measurement instruments such as oscilloscopes and voltage dividers
Researching partial discharge phenomena
Features to Consider
When selecting a repetitive pulse generator, consider:
Output voltage and current range
Pulse repetition accuracy and stability
Safety protections (e.g., overcurrent shutdown)
Compatibility with external control systems
Repetitive pulse generators enable reliable and repeatable high-voltage testing, ensuring compliance with international standards like IEC and IEEE. Their versatility makes them indispensable in industries ranging from power transmission to aerospace.
