POWER LINE INSPECTION

GENERAL INTRODUCTION

Electricity is the foundation of modern social development. Timely and effective powerline inspection is very important to ensure grid security. There were numbers of challenges and difficulties during power line inspection in the past years: long transmission line, time-consuming procedures etc. Consequently, the inspection efficiency was low, the workers were placed in higher risks. In response to the above pain points, MMCUAV develops the automatic power lines inspection system with UAV.

CASE STUDIES

STEPS

· POWER LINE POINT CLOUD MODELING

MMCUAV uses airborne Lidar to plot point cloud model for the transmission line. With the detailed 3D model, the drone can safely reach every corner and every angle of the tower without worrying about crash into power lines.

· 3D MISSION ROUTE PLANNING

After the transmission line 3D point cloud model is created, a 3-axis drone flight plan can be generated. The plan contains not only the flying route, but also the hover points and shooting angle as well.

· AUTOMATIC MISSION FLIGHT

The drone can fly automatically following the flight plan by using RTK for positioning. During the auto inspection process, the images will send back to the control center from the drone. By applying drone inspection solution for the power line, the accuracy and efficiency of inspection are improved massively.

· DATA ANALYSIS

Once the inspection is finished, the drone operator can proceed the pictures collection, images uploading, defects analysis, and report generation. Then it can submit a summarized line inspection report for the grid operator. 

PRODUCT STRENGTHS

Resistant to Power Frequency Magnetic Field up to 100A/m. Suitable for high-voltage tower inspection.

Stable flight platform, with mission flight function, reduce inspection time massively.

Lower cost compares to manned-inspection.

Easy to transport and operate, quickly respond to cases of emergency.

Industrial grade carbon-fiber frame allows the drone to inspect in various weather conditions.

REGULAR INSPECTION CONTENTS

Missing parts of the tower, loose bolts, loss of the number plate, the nest, the ice, the fallen tower, etc.

The deformed and broken wire, and the attrition between the equalizer ring bars, the burn fault created by the current problem, the overheated pressure adaptor tube, and the foreign bodies, etc.

Flash marks, ice coating, electric current burn, self-explosion, fouling, core rod exposure, damp heat, abnormal discharge, low value, zero value, etc.

Discharge burn, exposed ground wire, loose bolts, etc.

There are stone fields, tall trees, building construction, and other risk factors in the corridors.

The tower protection cap is buried, the earth fill is removed, or the revetment is damaged, etc.

Broken strands, abrasion, lightning strikes, the foreign bodies, etc.

Various types of clips are missing, the pressure equalizing ring is broken, the spacer rod is deformed, the displacement of the shockproof hammer is lost, etc.

Pull wire rust, abrasion, slack line, loss of fixture, etc.

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