High-resistance cable faults can be difficult to identify using conventional low-voltage reflection methods alone. Depending on the fault characteristics, additional testing techniques may be required to determine the fault distance and locate the damaged section.
Sansion Power provides cable fault location solutions that can incorporate suitable high-voltage impulse equipment, pre-location instruments, and acoustic-electromagnetic pinpointing devices.
The appropriate configuration depends on the cable's rated voltage, insulation system, fault resistance, and required testing method.
The system must match the intended test method and cable application. A higher output rating does not automatically make an instrument suitable for every cable.
Some faults require different pre-location and pinpointing methods. The technical proposal should identify which methods are supported by the equipment.
High-voltage testing requires trained personnel, an appropriate test area, verified isolation, grounding and discharge procedures, and compliance with the equipment manual and local regulations.
They may not produce a sufficiently clear reflection under ordinary low-voltage TDR testing conditions. An alternative method may be required depending on the fault.
No. Some instruments perform only pre-location, while other systems include or support compatible impulse equipment. Confirm the complete configuration before purchasing.
Selection depends on the cable's rated voltage, insulation system, applicable testing procedure, and fault location method. The equipment should be selected with qualified technical guidance.
Review the manufacturer's documentation for grounding arrangements, discharge provisions, emergency stop functions, interlocks, indicators, and other protective features applicable to the model.
Provide the cable voltage class, cable type, approximate length, suspected fault type, and applicable testing standards so that the technical team can assess the requirements.
Request technical specifications and configuration guidance for high-voltage cable fault location applications.