Hot plug type middle-high voltage power distribution prefabricated cabin

Abstract

The invention discloses a hot plug type middle-high voltage power distribution prefabricated cabin, which comprises a bus and outgoing line integrated fixed prefabricated cabin and a power distribution unit type movable prefabricated cabin, and is characterized in that the bus and outgoing line integrated fixed prefabricated cabin comprises a high voltage fixed cabin, a middle voltage fixed cabin and an interval inner cabin, a GIL bus, a GIS outlet cable sleeve, a bus and outlet static contact insulating sleeve are arranged in the cabin. The power distribution unit type mobile prefabricated cabin internally comprises GIS power distribution unit equipment, a lead, a bus and an outgoing line moving contact sleeve; hot plugging between the bus and outgoing line integrated fixed prefabricated cabin and the power distribution device unit type mobile prefabricated cabin is realized through a moving contact and a static contact, and the static contacts of the bus and outgoing line integrated fixed prefabricated cabin are compactly arranged in an electrified manner through an insulating sleeve. The invention aims to solve the problems that various devices and materials need to be purchased to be combined and matched from drawings to engineering sites due to the fact that an existing middle-high voltage power distribution device needs to be designed, manufactured, constructed and debugged in various installation stages, construction and installation are time-consuming and labor-consuming, power-off overhaul is difficult, and operation and maintenance are not changed. The design, manufacture, installation, operation and maintenance modes of the current middle and high voltage power distribution device are thoroughly changed, and the device has the advantages of compact structure, small occupied area, convenience in design, construction, operation and maintenance, short power failure time, basically no on-site electrical operation and the like.

Description

technical field [0001] The invention relates to the technical field of 10-35 kV medium-voltage and 66-220 kV high-voltage power distribution devices, in particular to a live plug-in type medium-voltage power distribution prefabricated cabin. Background technique [0002] At present, the main types of high-voltage power distribution devices mainly include air-insulated open equipment (AIS), SF6 gas-insulated combined electrical appliances (GIS) and semi-SF6 gas-insulated combined electrical appliances (HGIS), etc., but all types have equipment failures. The power outage or planned maintenance has a long power outage time, and the equipment needs to be repaired at the project site. Moreover, when it is arranged outdoors, there are problems such as large area and complicated design, manufacture, construction, operation and maintenance. When it is arranged indoors, only GIS equipment is suitable, but it is necessary to build houses, which makes design, construction, operation an...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a prefabricated cabin of live plug-in type medium and high voltage power distribution. For the existing medium and high voltage power distribution device, it needs to go through the installation stages of design, manufacture, construction and commissioning, and needs to purchase various equipment and materials from drawings to Combining and matching on the project site, time-consuming and labor-intensive construction and installation, difficult power outage maintenance, and unchanged operation and maintenance have completely changed the current mode of design, manufacture, installation, operation, and maintenance of medium and high-voltage power distribution devices. It has a compact structure, With a series of advantages such as small footprint, convenient design, construction, operation and maintenance, short power outage time, and basically no on-site electrical work, a new solution is proposed for building an efficient, flexible, and reliable medium and high voltage power grid.

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