Integrated Cable Fault Location System 32kV 2048J Multi-Pulse Trolley TDR Tester for 35kV Cable Detection| XHHV535-4TSB

Urban Distribution Grids

Complete fault location workflow for 35kV and below underground cables: fault diagnosis via built-in megohmmeter → pre-location with multi-pulse TDR → precise pinpointing with acoustic-magnetic synchronization. All from one trolley system.

Industrial Plants & Substations

DC withstand voltage testing of transformers, switchgear, and cables during commissioning, plus rapid fault response when production-critical feeders go down. The trolley design enables fast relocation between switch rooms.

Railway & Metro Systems

Fault location on signaling and traction power cables along rail corridors. The trolley-mounted system navigates platforms and service tunnels, while the battery-powered TDR tester operates where AC mains are unavailable.

Third-Party Testing Service Providers

All-in-one system covers 90% of field service calls. Low-voltage pulse for quick checks, 8-time multi-pulse for complex high-resistance faults, and comprehensive waveform storage for client reporting.

Q: What makes the XHHV535-4TSB different from a standalone HV surge generator?

The 4TSB is a complete cable fault location system combining a 10.1-inch touchscreen TDR tester with multi-pulse technology and a 32kV/2048J HV pulse generator on a single trolley. Unlike standalone generators, it handles the entire workflow — from fault diagnosis (built-in megohmmeter) through pre-location (TDR) to precise pinpointing — without needing separate instruments or external couplers.

Q: When should I use the multi-pulse method instead of standard high-voltage flashover?

The 8-time multi-pulse method is recommended for high-resistance and flashover faults where traditional HV flashover produces complex cosine-oscillation waveforms that are difficult to interpret. Multi-pulse extends the arc duration at the fault point and captures 8 waveform sets simultaneously, providing a clean short-circuit-like echo for unambiguous distance measurement.

Q: Can the TDR tester operate independently from the HV generator?

Yes. The TDR cable fault tester has a built-in 10.4Ah lithium battery providing 5+ hours of standalone operation. It can be used independently for low-voltage pulse testing, cable length measurement, wave velocity calibration, and insulation resistance testing (megohmmeter function) without the HV generator being powered on.

Q: How do I choose the right voltage/capacitor level for my cable?

Select based on cable voltage rating and fault type: 8kV/64μF for low-voltage cables and low-resistance faults requiring high current; 16kV/16μF for medium-voltage cables and general leakage faults; 32kV/4μF for 35kV cables and high-resistance flashover faults needing maximum breakdown voltage. The three-stage switching is done via a single rotary knob before power-on.

Q: What is the warranty and after-sales support?

Standard warranty is 12 months from delivery covering manufacturing defects, with lifetime technical support and maintenance services. Extended warranty plans are available. We provide remote diagnostics, spare parts supply, and optional on-site commissioning and operator training. Most inquiries receive a response within 24 hours.

Q: Can I export test waveforms for client reports?

Yes. The TDR tester stores waveforms with Chinese-character naming on board. Via USB connection and the included PC software, you can export waveform files, perform detailed analysis, generate reports, and print waveform images. This is particularly valuable for testing service providers who need to document results for their clients.