DRAWER TYPE HIGH-VOLTAGE SWITCHGEAR

摘要

PROBLEM TO BE SOLVED: To secure the electric separating space between the mutual electric conductors on the side of a power supply and to realize the safe insulating dimensions by arranging the electric conductor of the second- and third-phased electric fuses in the vicinities of the insulating tube of the first-phase power fuse. SOLUTION: The first-phase power fuse 4a is provided among conducting terminals 6a and 8a and between a insulator 7a and an insulator 9a. Furthermore, a second-phase power fuse 4b has conducting terminals 6b and 8b and an insulating tube 5b and is provided between an insulator 7b and an insulator 9b. Furthermore, the third-phase power fuse 4c has conducting terminals 6c and 8c and an insulating tube 5c and is provided between insulators 9c. Then, electric conductors 10b and 10c of the second- and third-phase power fuses 4b and 4c are arranged in the vicinity of an insulating tube 5a of the first-phase power fuse 4a. Thus, the insulation separating dimensions between the electric conductors 10a-10c with the respective phases of 4a-4c can be secured only by space insulation.