Distributed Fault Monitoring Device for Transmission Lines

1. Product No.:

TLKS-PMG-DSC

2. Overview

Transmission Line Fault Diagnosis System

In the vast area of transmission lines, the operating environment of transmission towers is complex and harsh. In the past, once a transmission line fault occurred, manual full-line inspection was the only option, which was not only inefficient but also caused considerable interference to power operation.

However, with the advent of the TLKS-PMG-DSC Transmission Line Fault Diagnosis System, this situation has been effectively improved. The system can quickly diagnose the nature of transmission line faults, accelerate the fault troubleshooting speed of the power grid, and greatly save the time required for manual inspection and fault point location.

3. Working Principle

Transmission Line Fault Diagnosis System adopts the traveling wave monitoring principle. Through monitoring terminals distributed and installed on transmission lines, it real-timely monitors abnormal discharge currents caused by insulator deterioration, icing, hardware aging, floating potential, vegetation overheight, etc. on transmission lines, as well as the forward leader discharge current of conductors when thunderclouds approach. It realizes automatic monitoring and early warning of problems in the operation process of output lines, and can effectively prevent flashover tripping caused by trees growing too high, tripping caused by long-term floating discharge of hardware leading to fracture and falling, tripping caused by long-term accumulation of insulator faults, and tripping caused by insulator deterioration and line icing, etc.

4. Functional Features

1. Real-time Early Warning: Monitor problematic discharge conditions of lines, and judge whether there are problems combined with historical data, so as to discover line problems at the first time.

2. Problem Location: Can determine the location of transmission line problems, with a positioning error of less than ±300 meters.

3. Fault Location: Perform intelligent, fast and accurate positioning of transmission line faults.

4. Fault Waveform Recording: Record the power frequency waveforms and traveling wave waveforms at different positions of the line at the moment of fault occurrence.

5. Parameters

1. Suitable line voltage level: AC 35kV~750kV transmission lines

2. Fault positioning accuracy: ≤±300m

3. Fault interval positioning reliability: ≥99%

4. Equipment installation principles:

Install one set at each end of lines less than 30 kilometers; for lines longer than 30 kilometers, add one set of equipment every 30 kilometers. For transmission lines with complex network structures, install one set of distributed fault diagnosis devices at branch points; for branch lines longer than 30 kilometers, add one set of equipment every 30 kilometers. They should be arranged at positions with good communication signals, etc.

6. Conclusion

The TLKS-PMG-DSC Transmission Line Fault Diagnosis System can diagnose line faults timely and accurately, real-timely monitor the operating status of transmission lines, discover and diagnose various faults in a timely manner, and effectively avoid problems such as fault expansion and long-term power outages. Our company's products are customizable. The quoted price is a reference price at the time of current market release; the actual price is subject to negotiation. For more information about the product, please feel free to contact Liu Xiaokang from Telcom at 18820479231.