25kg 1225J Portable DC High Voltage Surge Generator for Underground Cable Fault Detection| XHHV535-2L

The XHHV535-2L is an ultra-light portable DC high-voltage surge generator delivering 1225J discharge energy at up to 35kV for underground power cable fault location and DC withstand testing. At just 25kg, it is the lightest unit in the XHHV535 series—making it the ideal choice for field engineers who prioritize maximum portability without sacrificing capability.

Integrating a DC high-voltage source, 2μF energy storage capacitor, and high-voltage discharge ball gap into a single compact chassis, the XHHV535-2L completely replaces traditional test transformers, operation boxes, and pulse energy storage capacitors weighing over 100 kilograms combined. Its short-circuit-proof output design allows the high-voltage output to directly short-circuit to ground while continuing normal operation—truly indestructible by impulse. Fully compliant with DL/T846-2016 and DL/T474-2017.

• Automatic overcurrent, overvoltage, and overtemperature protection
• DC withstand voltage and impulse discharge dual-mode operation
• High-voltage pulse output is uniform and controllable
• Super short-circuit protection: high-voltage output can directly short-circuit to ground and continue working
• Dual 1.5-level pointer meters for current and voltage—intuitive real-time monitoring of full discharge cycle
• High-voltage side voltage measurement for real-time accuracy
• Zero-start protection: potentiometer return-to-zero for safe operation
• Unique high-voltage measurement design: voltmeter indicates capacitor voltage in real time even in stopped state
• Adjustable discharge intervals for acoustic-magnetic synchronization during fault pinpointing
• Compliant with DL/T846-2016 and DL/T474-2017

The XHHV535-2L is purpose-built for field service technicians, independent cable testing contractors, and utility maintenance crews who need a one-person-portable surge generator that can be carried between sites without lifting equipment. At just 25kg, it suits single-operator transport to confined vaults, manholes, and remote substations. Ideal for low-voltage distribution cable fault location, commissioning testing of new cable installations, and scheduled preventive maintenance programs where rapid deployment and minimal logistical footprint are critical.