NDWG-IV Overhead Line Fault Locator-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

Mobile: 133 9714 9829

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NDWG-IV Overhead Line Fault Locator

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Cable and Overhead Line Inspection Series

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NDWG-IV架空线路故障定位仪

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Product Details

■Product Overview

This instrument is suitable for 6-35KV Fault Location on Overhead Lines , It can address multiple fault types, including ground faults, high‑resistance faults, arc‑ground faults, and phase‑to‑phase short circuits, providing a comprehensive solution for overhead line fault location. The system integrates four functions: AC fault diagnosis, AC fault location, DC fault location, DC withstand voltage testing, and AC withstand voltage testing. Its innovative AC fault‑location mode detects characteristic signals directly beneath the line for low‑resistance faults, eliminating the need to install sensors on every pole, thereby offering simple operation and convenient use. For installations involving smart switches (which have a grounding connection… PT ) For high-resistance faults on the line, AC location is employed. + The method of the step-up converter does not require deactivation. PT The transmitter features a built-in high-capacity lithium battery, making it convenient to use and carry.

The complete system consists primarily of a transmitter, a receiver, an AC step-up transformer, a direct‑connection sensor, a suspended‑type sensor, an arc‑grounding adapter, and associated accessories.

■Features and Benefits

1. Purpose :6-35kV Overhead Line Fault Location and Identification

2. It integrates five functions: fault diagnosis, AC location, DC location, AC withstand voltage testing, and DC withstand voltage testing.

3. Fault Diagnosis

1) Guide appropriate positioning methods.

2) Measurement of line insulation resistance and capacitance.

4. Communication positioning - Direct output ( Low transition resistance grounding ):

1) Transmit signal : Active injection of high-power, specialized low-frequency AC signals.

2) Receive signal : Segmented line‑by‑line search, eliminating the need to climb poles and install sensors.

3) Work efficiently : No pole climbing is required, significantly improving testing efficiency and reducing workload.

5. Communication positioning - External step-up transformer output ( The line has a ground fault. PT , medium transition resistance grounding )

1 ) Transmit signal : Active injection of high-power, specialized low-frequency AC signals. 2) Receive signal : Segmented line‑by‑line inspection requires climbing poles to install and connect sensors. 3) No need to disconnect the line grounding. PT.4) Innovative comparison of resistive current content and current amplitude ratios addresses a broader range of fault conditions. ,

6. DC positioning ( High / Low-Resistance Grounding and Arc-Flash Grounding ):1) Transmit signal : Active injection of high-power pulsed DC signals. 2) Receive signal : Segmented line‑by‑line inspection requires climbing poles to install and connect sensors. 3) All‑round positioning mode, particularly effective in addressing the challenge of arc‑flash ground fault location.

7. DC withstand voltage and AC withstand voltage: acceptance tests following fault repair.

8. The transmitter is equipped with an automatic discharge‑stop function to ensure operational safety.

9. The transmitter is equipped with overcurrent protection and overtemperature protection.

10. The transmitter features a built-in high-capacity lithium-ion battery pack for convenient portability.

11. The receiver employs all-digital, high-sensitivity signal processing with clear and intuitive decision criteria.

12, It features data retention, ensuring no data is lost during power outages, and makes fixed-point measurements more convenient.

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NDWG-IV Overhead Line Fault Locator

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