XHSC-60Q Integrated Digital Burn Through Bridge 60kV 600mA Cable Fault Locator with HV GIS Capability

The XHSC-60Q is a fully integrated digital burn-through bridge that combines high-voltage burn-through (60kV, 600mA) and intelligent bridge fault pre-location in a single portable pull-rod case. Purpose-built for field service teams who need rapid deployment on complex cable systems — including GIS-terminated and cross-interconnected high-voltage networks — without the logistical burden of separate instruments.

The XHSC-60Q houses its high-voltage constant current source, bridge detection module, and 3.5-inch TFT LCD display inside a rugged pull-rod case rated for field transport. The entire system weighs only 29kg, enabling single-operator deployment from vehicle to test point. A turntable selector switch seamlessly toggles between burn-through and bridge modes — no cable reconnection required.

The intelligent bridge module supports three positioning algorithms:

• Bridge Method: Requires known cable length and equal cross-section auxiliary cable with low-resistance far-end short circuit
• Cross-Section Method: Uses known cross-sectional area and material data — ideal when auxiliary cable length differs
• Voltage Comparison Method: Determines fault distance by percentage calculation from two wiring configurations — suitable when only cable length is known

All methods operate via the high-potential-side LCD with ground-potential rotary control — no physical contact with the high-voltage section during operation.

• HV cable insulation fault pre-location on GIS-terminated circuits without removing GIS switchgear
• Cross-interconnected cable system sheath fault location without shorting interconnection links
• High-resistance fault burn-through on large-section, long-distance transmission and distribution cables
• DC withstand voltage verification testing
• Short cable and near-end fault location where wave reflection methods have blind zones

Unlike conventional two-instrument setups, the integrated design reduces field logistics, eliminates compatibility issues between separate units, and provides a consistent user interface across both operating modes. The four-wire (Kelvin) resistance measurement with shielded cable eliminates lead resistance errors, while the copper mesh braided shielding layer ensures operator safety through reliable grounding.