High Voltage Cable Fault Locator with Built-in 2μF Capacitor and 0～1024 J Discharge Energy

• Automatic overcurrent, overvoltage, and overheat protection;
• DC withstand voltage and impulse discharge functions;
•  Uniform and controllable high-voltage pulse output;
• Strong short-circuit protection, allowing direct short-circuit operation to ground;
• Dual 1.5-level pointer meter display for current and voltage, providing clear and intuitive readings, making it easy to see whether a fault point has fully discharged and providing real-time feedback on the discharge process;
• Accurate real-time voltage measurement on the high-voltage side;
• Zero-position start protection for enhanced safety and reliability;
• Unique high-voltage measurement design, allowing the voltmeter to indicate the capacitor voltage value in real-time even when stopped, providing operators with complete control over the high voltage;
• Discharge time can be arbitrarily set within appropriate intervals.

Working Principle: Impulse Discharge Function
This system generates DC high-voltage pulse signals to produce electrical test signals with the required parameters. It is commonly used as an impulse high-voltage power supply for fault detection in power cables with voltage levels of 35kV and below.

It consists of a charging circuit and a discharging circuit. The voltage of the high-voltage cable is sampled and sent to the voltage regulation control circuit. The impulse magnet organically integrates the DC high-voltage power supply, energy storage capacitor, and high-voltage discharge sphere into one unit. It is typically used in high-voltage flashover fault testing and acoustic-magnetic synchronization fault point location.