Mounting structure for isolating switch in medium voltage switch cabinet

A technology of isolation switch and installation structure, which is applied in the field of medium-voltage switchgear, and can solve problems such as rising costs, incomplete combination schemes, and high prices of key components

Inactive Publication Date: 2008-01-30
上海华通企业集团有限公司
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  • Abstract
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Problems solved by technology

[0003] The basic components of this type of switchgear adopt the imported SFL and SFG type sulfur hexafluoride switches of ABB company. Due to the relatively high price of key components, the application level of this type of switchgear is limited to a certain extent during the promotion process; secondly, in the scheme combination , the combination scheme based on the load switch is basically adopted, the combination scheme is not complete, and it brings unnecessary cost increase

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  • Mounting structure for isolating switch in medium voltage switch cabinet
  • Mounting structure for isolating switch in medium voltage switch cabinet
  • Mounting structure for isolating switch in medium voltage switch cabinet

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[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0022] It can be seen from FIGS. 4A and 4B that the present invention includes: an isolating switch 20; the wiring surface of the isolating switch 20 is parallel to the side of the cabinet; the operating mechanism 21 of the isolating switch 20 is rotary;

[0023] The operating mechanism 21 is arranged on the inside of the front of the cabinet.

[0024] It can be seen from Figure 2: G1-first incoming cabinet, G2-second incoming cabinet, G3-main cabinet, and G5-PT cabinet were originally SFG-type load switches, but now they are GN30-type disconnecting switches. Due to the relatively low price of the isolating switch, the price advantage of the whole scheme is very obvious, and the combination scheme of the HXGN15-12 cabinet is more flexible and convenient, and the application of this cabinet type is more extensive. G4-metering cabinet, G6-first feeder c...

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Abstract

The invention relates to an installation structure of an isolation switch in a medium voltage switch cabinet which comprises the isolation switch (20); the connection surface of the isolation switch (20) is parallel to the side surface of a cabinet body and an operating mechanism (21) of the isolation switch (20) is a rotary type; the invention has the beneficial effects that: the space of the medium voltage switch cabinet is effectively utilized; the isolation switch can be completely and normally arranged in the cabinet body and satisfactory application effect is obtained; furthermore, by adopting the method of lateral installation, the main connection of the isolation switch cabinet is kept in accordance with the main connection of a load switch cabinet, which is more suitable for the requirements of fabrication technology.

Description

technical field [0001] The invention relates to a medium-voltage switchgear (HXGN15-12 series), in particular to an installation structure of a disconnector in the medium-voltage switchgear. Background technique [0002] HXGN15-12 series medium voltage switchgear is mainly used for the ring network power supply or dual radiation power supply of the power system with three-phase AC 50HZ and rated voltage of 10KV. It can also be used for terminal power supply as the control of electric energy and the protection device of electric equipment. At the same time, because of its relatively small size, it is especially suitable for being installed in a compact box-type substation. [0003] The basic components of this type of switchgear are imported SFL and SFG type sulfur hexafluoride switches from ABB company. Due to the relatively high price of key components, the application level of this type of switchgear is limited to a certain extent during the promotion process; secondly, in...

Claims

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Application Information

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IPC IPC(8): H02B1/00H02B1/04H02B1/26
Inventor 李成文
Owner 上海华通企业集团有限公司
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