Digital Burn Through Bridge 60kV 400mA Cable Fault Pre-Locator for Third-Party Cable Testing Services | XHSC-60Q

The XHSC-60Q integrates a 60kV burn-through unit, a high-current digital bridge and an intelligent fault diagnosis function in one trolley case. High-resistance and flashover faults are burned down to stable low-resistance faults with up to 400mA arc current, then pre-located by the 750mA digital bridge or cross-section mode with ±(0.1%·L+1)m accuracy over 1 to 50000m. One-key automatic operation, automatic wiring and earth checks, and automatic discharge make it a dependable daily tool for field service crews.

• Three jobs in one case: intelligent diagnosis, 60kV/400mA burn-through, and 4kV/750mA bridge and cross-section pre-location
• Bridge method has no blind zone, unlike reflectometry, so short cables and faults close to terminations are located reliably
• Intelligent burn-through stops automatically when the fault impedance reaches the ranging requirement, saving billable time
• One-key automation with on-screen guidance suits rotating field technicians and reduces training cost
• Automatic wiring check and protective-earth detection protect crews and equipment on unfamiliar sites
• 100 stored history records support report writing for every client contract
• Sunlight-readable 320x240 LCD works on sunny cable routes and in dark manholes
• Trolley case with casters, 22kg, IP54: moves easily between service vehicles and job sites

Instead of guessing the fault nature first, the XHSC-60Q runs an automatic intelligent diagnosis at up to 60kV and tells you exactly what to do next. This is how the built-in workflow decides the fastest route to the fault distance:

In burn-through mode the unit outputs up to 60kV with a 400mA arc current to carbonize high-resistance and flashover faults into stable low-resistance faults. With the intelligent burn-through function enabled, the test stops automatically as soon as the fault impedance drops to the level required by the ranging modes, instead of running the full preset time. The bridge accuracy can be verified on site with the supplied bridge test box (33.3% reference line) whenever a suspicious reading appears.

• One-key automatic operation: the unit diagnoses, burns and pre-locates without complex menu work
• Automatic wiring check with protective-earth detection prevents unsafe starts
• Automatic discharge at test end; emergency stop button cuts HV output instantly
• Up to 100 history records stored for bridge and cross-section results
• 320x240 dot-matrix LCD readable in direct sunlight