NDWGY-503S Outer Sheath Fault Locator-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

Mobile: 133 9714 9829

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NDWGY-503S Outer Sheath Fault Locator

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Cable and Overhead Line Inspection Series

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NDWGY-503S 外护套故障定位仪

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■Product Overview

With the comprehensive rollout of urban grid upgrades, many power supply bureaus, construction contractors, and even design firms are encountering this for the first time. 110kVXLPE Cables, due to time constraints and lack of experience , This results in many cables failing the withstand voltage test after installation. (10kV/1min) , at present, the outer sheath is mostly made of HDPE Sheath material , It has already been passed in the factory via direct current. 25kV/5min Withstand voltage test , Leakage current as low as several tens of μA. A Therefore, most defects that appear after installation are caused during the installation process. , This includes damage caused by external forces during backfilling and cover‑plate installation. Post‑operation defects typically manifest as white‑moth bite marks. ; Water ingress in the grounding box ; Degradation of the original defect points ; Moisture ingress into the branching section of the grounding conductor, leading to a reduction in insulation resistance, and other similar causes. , Sometimes, due to the cable being buried too deeply or the surrounding conditions being complex. , Makes positioning extremely difficult. , Some defects have remained unresolved for years, leaving potential risks to operations.

The output voltage of the high-voltage cable outer sheath fault detector is 10KV and below, fully compliant with Chinese national standards GB50150-2006 Regulations for the Dielectric Withstand Test of Cable Outer Sheaths , Includes handover and preventive testing of cable outer sheaths suitable for cross‑connected systems, as well as fault location in cable outer sheaths, enabling rapid and accurate identification. 10kv-500kv Potential hazards such as grounding faults in the outer sheaths of single-core and three-core high-voltage and extra-high-voltage cables, as well as abnormally high leakage currents. , It can also be used to process the outer sheaths of high-density polyethylene and polyvinyl chloride cables. 5kV-10kV,1 Minute DC withstand voltage test , Yes 10kv-500kv A specialized instrument indispensable for cable equipment maintenance at operating units of single-core and three-core high‑voltage and extra‑high‑voltage cables, as well as at extra‑high‑voltage cable engineering firms and power transmission and transformation project companies.

■Features and Benefits

. Adjustable voltage, adjustable frequency

. Overcurrent protection. One-touch switching between fixed-point and withstand voltage modes.

. The test coverage is complete with no blind spots. Receiver sensitivity is adjustable.

. Signal frequency adjustment. Zero‑position protection

■ Technical Specifications

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

Output voltage :0~10kV( Square wave ) Adjustable

Output current :max200mA

Output capacity :2kVA

Frequency adjustment :Min:0.4Hz ， Max:1Hz( Adjustable range )

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NDWGY-503S Outer Sheath Fault Locator

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