1250A bus connecting device

Abstract

The utility model discloses a 1250A bus connecting device. The 1250A bus connecting device comprises a conductive block and more than one contact assembling assembly; the contact assembling assembly comprises a plurality of contact pieces A and contact pieces B which are arranged alternately; the plurality of contact pieces A and the plurality of contact pieces B are respectively connected with the conductive block in a clamping mode; the outer surface of the conductive block and the outer surfaces of the contact assembling assemblies are provided with a bus insulating sleeve; the bus insulating sleeve wraps the conductive block and the contact assembling assemblies. According to the 1250A bus connecting device, the effective area of electric contact between the contact pieces and the contact box of a ring main unit is increased; contact heating points are dispersed; local temperature rise is alleviated; conductive performance is improved; the bus contact piece groups can be in pressure connection with the conductive block, so that deviation can be allowed to occur when a bus connector is connected with the contact box.

Description

technical field [0001] The invention relates to a 1250A bus connection device, which is suitable for medium-voltage power distribution equipment, such as the connection of SF6 ring network cabinets and other fully sealed and fully insulated plug connections. Belongs to the technical field of electrical and power distribution equipment Background technique [0002] At present, after the SF6 ring network cabinet is used with the bus connection device, the ring network cabinet can be expanded in any connection combination. Due to the simple and fast installation of the busbar connection device, the complete set of ring network cabinet enterprises can form a batch standardized production of a single cabinet or prepare goods in advance. After receiving the contract order, the cabinets can be combined flexibly and quickly according to customer needs, and timely supply , to shorten the lead time. In the prior art, the technical parameters of the bus connection device are only sui...

AI Technical Summary

Problems solved by technology

[0003] 1. The contact between the contact piece contact ring and the rod-shaped contact of the ring network cabinet is prone to excessive temperature rise, which has the disadvantages of shortening the service life of the busbar connection device and wasting energy;

[0004] 2. When the rod-shaped contact of the ring network cabinet is pushed into the contact ring of the contact piece, it will be subjected to great resistance, which makes the splicing of the cabinet body laborious;

Therefore, its electrical conductivity needs to be improved.

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