Design and Analysis of Universal Clamps for UHV Transmission Lines

The insulator replacement tools and instruments currently used have great shortcomings in terms of efficiency and versatility, when replacing the strain-resistant insulator string on a power transmission line. The first broken insulator on the side of the transmission line cannot be replaced in a timely and effective manner. For more stable and safer operation of ultra-high voltage (UHV) lines, a new type universal clamp is developed in this paper. The damaged insulators can be replaced in time, which improves the operation and maintenance efficiency of UHV lines. For different types of wire connecting plates, the replacement of the first damaged insulator on the transmission line side can be completed more efficiently. The finite element method is used to analyze the mechanical properties of the new clamp. And the feasibility of the new clamp structure design is verified by experimental results.