How to Avoid System Crash in Overhead Distribution Line Status Monitoring System


Recently, the Nigeria Electricity Transmission Association requested urgent procurement of monitoring and data acquisition equipment (SCADA) to avoid the collapse of the power grid system. Usman, the managing director of the country's power transmission company, said, "SCADA is very important to the normal operation of the power grid. I don't know which one in the world is like Nigeria. Such a large country does not have such equipment."


Overhead Distribution Line


Distribution Line Condition Monitoring

According to statistics in 2018, nearly 90 million people in Nigeria frequently suffer from a series of power shortages caused by the instability of the power grid system. Mr. Oduntan, the executive director of Dincos, also stated that every time there is a problem with the Nigerian power grid, the power transmission company needs to contact employees by phone. Failure, which will prolong the power grid collapse time, will cause great inconvenience to people's life.

The line monitoring and fault tracking of the power grid will play the greatest positive role in the stable operation of the power grid and the realization of distribution network automation. The Four-Faith overhead distribution line status monitoring solution minimizes the chance of line crashes by monitoring line operation in real time, determining fault categories online, and sending fault notifications in real time, while greatly improving the efficiency of power grid operation and maintenance.

Condition Monitoring System for Overhead Distribution Lines


1. Program introduction

Four-Faith Overhead Distribution Line Status Monitoring System, which comprehensively utilizes sensing technology and GIS positioning function, is suitable for 6-35kv distribution network overhead lines. It monitors power lines 24 hours a day. When a line fails, the fault indicator will be on immediately. The ground triggers the flop + the LED light flashes, and when a short circuit or ground fault occurs, the fault location is displayed in time, and a text message is sent to the line operation and maintenance personnel to inform the fault type. At the same time, the fault information is wirelessly transmitted to the collection unit through short-distance RF, and the collection unit uploads it to the main station system through 2.5G/3G/4G.

2. Solution advantages:

2.1 Real-time monitoring and fast positioning

Real-time monitoring of line status to prevent line failures; combined with GIS system positioning, quickly and accurately locate the fault section; immediately determine the type of fault and issue fault information to help operation and maintenance personnel quickly rush to the scene and troubleshoot.

2.2 Remote configuration, efficient management

The device can be configured remotely without visiting the site in person, including setting operating parameters, such as heartbeat interval, time interval for uploading remote timing, transient fault recovery time, permanent fault power-on recovery time, etc.; at the same time, it can remotely upgrade and maintain programs, Greatly improve management efficiency.

2.3 Powerful power solution

The indicator can take power from the line, and when the load current is greater than 10A, it does not consume battery power; the indicator can work for more than 8 years without maintenance for a long time; the collection unit is powered by solar energy and a backup large-capacity lithium iron phosphate battery.

2.4 Epoxy casting, fully sealed structure

The fault indicator is poured with epoxy, and the protection level can reach IP68. It is suitable for long-term outdoor operation under harsh conditions, and can be installed and disassembled with power on.

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