Epoxy pouring solid insulation switch

Abstract

The invention provides an epoxy cast solid insulating switch, comprising a bus chamber and a switch body. In the bus chamber, the layout of bus bars is switched over from left, middle and right to front, middle and back through three switchover supports and three insulating buses; the switch body comprises three insulating rods, three fuse cabins and three fuse carrying carts; one end of each insulating rod is connected with a rotary component of an operation mechanism; the other end of each insulating rod is connected with a moving end of an arc-extinguishing chamber; the moving end and a static end are separated or closed through the operation mechanism; the fuse cabins are arranged under the arc-extinguishing chamber; the fuse carrying carts are arranged in the fuse cabins; the movement of the fuse carrying carts allows the fuses to have three working positions, namely a closing position, a breaking position and a fuse extracting position; and the switch body is cast by use of epoxy. The switch has the advantages of reasonable design, high electrical safety performance, small volume, light weight, stable performances, reliable movements, strong practicability and advancement. Therefore, the switch is a powerful guarantee for power supply reliability and is a precondition for reducing the investment of users.

Description

technical field [0001] The invention relates to a power high-voltage switch, in particular to a fully insulated epoxy cast solid insulated switch. Background technique [0002] The power switch is one of the key equipment in the power supply industry. It is used to protect the safe operation of the generator set in the power station. It is used as a switch for power transmission and transformation lines. It is one of the key components in relay protection and plays a role in safe power transmission. Function, mines, oil fields, and enterprises are used as equipment for industrial power distribution and electric traction. From this point of view, power switches play an important role in distributing electric energy and protecting power distribution equipment. [0003] The currently used power switch and the switchgear used with it are relatively large in volume, and a large amount of SF6 gas is used, which can bring serious pollution to the environment. Due to the limitation...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the large size of current switches and switch cabinets, the use of SF6 gas arc extinguishing can bring serious pollution to the environment, poor scalability, inconvenient installation, poor reliability, and the increase in manufacturing costs and operation and maintenance costs. Users bring certain economic losses and other problems, and provide an epoxy cast solid insulation with compact structure, small size, low operation and maintenance costs, not affected by the operating environment, and can significantly reduce the investment in power facilities and the loss of transmission and feeder lines. switch

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