HSWHT-3000 High Voltage Cable Outer Sheath Fault Locator

1HSWHT-3000 High Voltage Cable Outer Sheath Fault Locatorproduct overview

With the comprehensive implementation of urban network renovation, many power supply bureaus, construction companies, and even design units have encountered 110kV XLPE cables. Due to time constraints and lack of experience, many cables have failed the withstand voltage test (10kV/1min) on the outer protective layer after installation. At present, the outer protective layer mostly uses HDPE sheath material, which has passed the DC 25kV/5min withstand voltage test in the factory, and the leakage current is as low as tens of μ A. Therefore, most of the defects after laying are caused by external forces during the laying process, including filling and covering. Defects after operation usually include termite bites; Water ingress into the grounding box; Deterioration of existing defect points; Due to factors such as moisture leakage in the forked part of the grounding wire causing a decrease in insulation resistance, sometimes it is difficult to locate due to the cable being buried too deep or the surrounding conditions being complex. Some defect points have been unresolved for many years, leaving hidden dangers for operation.

High voltage cable outer sheath fault detectorThe output voltage of the cable is 10KV or below, fully meeting the requirements of the Chinese national standard GB50150-2006 for the withstand voltage test of the cable outer sheath, including the cable outer sheath handover test and preventive test suitable for cross interconnection, as well as the fault location of the cable outer sheath. Quickly and accurately identify hidden dangers such as grounding faults and excessive leakage current in the outer sheath of 10kv-500kv single core and three core high voltage and ultra-high voltage cables. At the same time, it can conduct a 5kv-10kv, 1-minute DC withstand voltage test on the outer sheath of high-density polyethylene and polyvinyl chloride cables. It is an instrument for cable equipment maintenance of 10kv-500kv single core and three core high voltage and ultra-high voltage cable operating units, ultra-high voltage cable engineering companies, and various power transmission and transformation engineering companies.

IIHSWHT-3000 High Voltage Cable Outer Sheath Fault LocatorMain functional features

• Voltage adjustable
• adjustable frequency
• Overcurrent protection
• Fixed point, pressure resistant one click switching
• Test range without blind spots
• The sensitivity of the receiver is adjustable.
• Signal frequency adjustment
• Zero position protection

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• Specification

1. Input voltage: 220V (1 ± 10%), 50Hz (1 ± 5%)

2. Output voltage: 0-10kV (square wave) adjustable

3. Output current: max200mA

4. Output capacity: 2kVA

5. Frequency adjustment: Min: 0.4Hz, Max: 1Hz (adjustable range)