Cable AC Voltage Withstand Test Instrument Manufacturer

In the power system, the existing preventive withstand voltage tests for cables are unable to detect minor insulation defects that can lead to insulation hazards. Long-term practice has proven that partial discharge is the main cause of insulation breakdown in power cables after operation. Therefore, conducting partial discharge tests on cables is an excellent method for detecting the insulation condition of cables. Currently, oscillating wave cable detection and localization technology are widely used internationally. Based on this theory, our company has innovatively employed alternating current variable frequency high-voltage sources to develop a new type of... The cable testing system boasts independent intellectual property rights.

Technical Features:

Compared to existing preventive dielectric withstand test technologies, it can detect minor quality defects in cables non-destructively in a timely manner, particularly insulation defects caused by inadequate field joint manufacturing processes. It can also determine the location of the defects, preventing operation with potential safety hazards and causing operational accidents. It allows for on-site cable condition assessment to scientifically determine whether the cable requires supervised operation, defect repair, or replacement with a new cable.

◆ Adopting exchange chargingAC-OWTSThe system installation principle is superior to existing DC systems domestically and internationally.DC-OWTSTechnology to avoid the potential "false breakdown" effect of cables caused by direct current charging. More suitableXLPEInsulation material characteristics of cables, and can better test partial discharge in aging operating cables.

◆ Based on partial discharge data, the starting voltage for partial discharge in each phase cable can be determined.PDIVNo Chinese content provided.PDMaxThe data is recorded in the report to establish a line archive, ensuring a quick and accurate understanding of the cable's operational status in the future.

◆ Field practice has proven the effectiveness of oscillating wave method for cable partial discharge locationOWTSThe testing equipment demonstrates excellent detection capabilities for the quality of the cable's body, accessories, and jointing techniques.

Our system is fully compatible with existing national and industry standards, ensuring that the tests will not damage the cables.