Development of inspection robot system for live-line suspension insulator strings in 345kV power transmission lines

A new inspection robot system is presented for live-line suspension insulator strings to prevent an insulator failure that can have severe effects on national industry, economy and security. This robot system is small-sized, lightweight and more superior in insulation and reliability by adopting a new wheel-leg moving mechanism and a new insulation resistance measurement method. We confirmed its effectiveness through experiments including a live-line test.