Box-type combined total terminal box for secondary line collection terminal of 220kV novel composite apparatus

Abstract

The invention relates to the technical field of connection terminals, in particular to a box-type combined total terminal box for a secondary line collection terminal of a 220kV novel composite apparatus. A semaphore collection terminal block, a partition plate, secondary line collection terminal blocks of a current transformer, a heater, a DC bus bar and DC air switch, AC bus bars, an AC air switch and a headlamp are arranged in a box body; and the box body is total terminal box formed by combining two parts of box bodies in which the same equipment is internally arranged. According to the box-type combined total terminal box, the semaphore of split-phase equipment is collected into the terminal box, so that the field construction workload is reduced, the technical difficulty of construction is lowered and the consumable materials are saved. Meanwhile, the box-type combined total terminal box has the beneficial effects that the box-type combined total terminal box has rainproof and moisture-proof functions, the temperature of the box body can be automatically adjusted and controlled, cable connection is facilitated, the field construction workload is reduced, the technical difficulty of construction is lowered and the consumable materials are saved. The power requirements of the split-phase equipment can be met, the power supply stability of an AC system is ensured, AC in a field region is designed according to loop network power supply, interval completion of an AC / DC loop network is facilitated and the power supply system is stable and reliable.

Description

technical field [0001] The invention relates to the technical field of terminal blocks, in particular to a combined main terminal box of a 220 kV new combined electrical secondary line summarizing terminal box type. Background technique [0002] The terminal box is a kind of interface device for switching construction lines, marking branch lines, and providing convenience for wiring and checking lines. In some cases, in order to facilitate construction and debugging, some more special products with more regular installation settings, such as short-circuit isolators, can be installed in the terminal box. [0003] Terminal block is an accessory product used to realize electrical connection, which is industrially divided into the category of connectors. With the increasing degree of industrial automation and stricter and more precise industrial control requirements, the amount of terminal blocks is gradually increasing. With the development of the electronics industry, the us...

AI Technical Summary

Problems solved by technology

However, due to its large size, it is inconvenient to move, and it is vulnerable to wind and rain outdoors for many years, and because the structure of the existing terminal box is too simple, it is impossible to combine multiple functions.

Therefore, there are also disadvantages and deficiencies of inconvenient use.

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