Ring main unit

A technology of ring main unit and cabinet body, applied in the field of ring main unit, can solve problems such as unstable electrical connection, and achieve the effect of stable electrical connection

Active Publication Date: 2019-08-16
ZHEJIANG KANGGE ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The circuit breaker used in the existing ring network cabinet has the following problems: the copper guide piece and the guide rod are fixed by one-way bolt tightening, once the bolt is loose, the problem of unstable electrical connection is likely to occur

Method used

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Experimental program
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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the drawings.

[0036] Such as figure 1 with figure 2 As shown, a ring network cabinet includes a cabinet body 1 and a circuit breaker 2 located in the cabinet body 1, and the circuit breaker 2 functions to open, close, and disconnect.

[0037] Such as figure 2 As shown, the circuit breaker 2 includes a support frame 3, an arc extinguishing chamber 4 mounted on the frame, and an operating mechanism 5 for controlling on and off.

[0038] Such as figure 2 As shown, the support frame 3 includes two insulating support plates 6 that are vertically parallel and spaced at a certain distance. The same side of the two insulating support plates 6 is connected by a connecting plate 7 perpendicular to the two insulating support plates 6. The lower side of the support plate 6 is connected by the lower support plate 8. A mounting plate 9 is installed between the two insulating support plates 6 near the u...

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PUM

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Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a ring main unit. The ring main unit comprises a unit body and a breaker located in the unit body, the breaker comprises a support frame, an arc extinguish chamber installed on the support frame and an operation mechanism controlling on-off of a circuit, a copper sleeve is fixed at the lower end of the arc extinguish chamber, a first butt ring having a diameter larger than the copper sleeve is integrally formed at the lower end of the copper sleeve, an insertion rod having an upper end connected witha moving contact is inserted into the copper sleeve, the diameter of the insertion rod is equal to the inner diameter of the copper sleeve, a first butt ring is formed at the position at the lower portion of the first butt ring on the insertion rod, a lower copper row penetrates the position at the upper portion of the second butt ring on the insertion rod, and a first strong spring sleeves the position between the lower copper row and the second butt ring on the insertion rod. The copper row is extruded upwards under the action of the first strong spring and is butted against the first butt ring to allow the copper row to be tightly butted against the first butt ring for stable electrical connection.

Description

Technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to a ring network cabinet. Background technique [0002] The ring network cabinet is a group of transmission and distribution electrical equipment installed in a metal or non-metal insulated cabinet or made into an assembled spaced ring network power supply unit. Its core part uses load switches and fuses. It has a simple structure, small size, and Low price, can improve power supply parameters and performance, and power supply safety and other advantages. It is widely used in distribution stations and box-type substations of load centers in urban residential districts, high-rise buildings, large public buildings, factories and enterprises. [0003] A circuit breaker is used as a switch in the ring network cabinet. The circuit breaker refers to a switch that can close, carry and break the current under normal loop conditions and can close, carry and break the current u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/42H02B1/30
CPCH01H33/42H02B1/30
Inventor 王夏方施振中龙涛施雷震
Owner ZHEJIANG KANGGE ELECTRIC CO LTD
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