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Electrical-device connecting apparatus and opening/closing apparatus

A technology for electrical equipment and connection devices, which is applied in the field of electrical equipment connection devices and switching devices, can solve problems such as difficult to ensure the insertion and extraction of exhaust tools, and the difficulty of exhaust operation itself, so as to achieve simple exhaust, The effect of efficient exhaust

Active Publication Date: 2020-02-04
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the technology disclosed in Patent Document 2 has the following problems: in the case where the connecting portion is formed of a hard member such as ethylene propylene rubber, it is difficult to secure a space for inserting and pulling out the exhaust tool, and the exhaust work itself become difficult

Method used

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  • Electrical-device connecting apparatus and opening/closing apparatus
  • Electrical-device connecting apparatus and opening/closing apparatus
  • Electrical-device connecting apparatus and opening/closing apparatus

Examples

Experimental program
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Embodiment approach 1

[0024] Below, based on Figure 1 to Figure 6 Embodiment 1 of the present invention will be described. figure 1 is a cross-sectional view showing the electrical equipment connection device according to Embodiment 1 of the present invention, figure 2 yes means figure 1 An enlarged cross-sectional view of part A. The electrical device connection device 100 includes: a bus bar 10, that is, a bus conductor, which extends along the direction in which a plurality of switch devices 91 respectively accommodate circuit breakers (not shown) The closing device 91 is electrically connected to each other; and the insulating plug 20, that is, the insulating cylinder, the above-mentioned insulating plug 20 will be connected to the instrument transformer 92 of the bus bar 10 on the opposite side to the switching device 91, that is, between the electrical equipment and the bus bar 10 Electrically insulated between them, terminal members 30, 40 are provided at positions corresponding to the ...

Embodiment approach 2

[0038] Below, based on Figure 7 Embodiment 2 of the present invention will be described. Additionally, for Figure 1 to Figure 6 The same or corresponding parts are marked with the same symbols, and their explanations are omitted. In Embodiment 2, the diameters of the through holes through which the stud bolts pass are different. Figure 7 It is a perspective view which shows the arc conductor of Embodiment 2. In the arc conductors 731, 732, when the size of the pedestals 731b, 732b is set to be the same as the size of the pedestals 631b, 632b in Embodiment 1, the diameter of the through holes 731a, 732a is set to be that of the stud bolt 50. more than twice the diameter, so as to increase the proportion of the volume of the through holes 731a, 732a. About inner peripheral surface 731c, 732c, it is the same as inner peripheral surface 631c, 632c in Embodiment 1. Although not shown, the through-holes 14 of the bus bar 10 and the through-holes 731a, 732a of the arc conduct...

Embodiment approach 3

[0044] Embodiment 3 differs from Embodiment 1 or Embodiment 2 in that terminal members 30 , 40 are made of rubber having a hardness higher than that of silicone rubber, such as fluororubber and ethylene propylene rubber. In this case, since the terminal members 30, 40 are not easily deformed, when the insulating plug 20 is inserted into the electrical equipment connection portion 32, 42, the force required for diameter expansion becomes larger, and the insertion and fixation of the insulating plug 20 The surface pressure at the rear insulating interface portion 82 becomes larger. Others are the same as those in Embodiment 1, and thus description thereof will be omitted.

[0045] According to Embodiment 3, the same effect as Embodiment 1 can be obtained.

[0046] In addition, the risk of occurrence of insulation failure can be further reduced. More specifically, since the terminal member is made of hard rubber such as fluororubber and ethylene propylene rubber, the surface pr...

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Abstract

The purpose of the present invention is to obtain an electrical-device connecting apparatus and an opening / closing apparatus which are capable of simply and effectively degassing a connection portionof an electrical device. The electrical-device connecting apparatus (100) is provided with: a bus bar (10) that has a hollow portion (13) extending in the axial direction and through holes (14) extending in a direction orthogonal to the axis and that electrically connects a plurality of opening / closing apparatuses (91) to one another; insulating plugs (20) electrically insulating instrument transformers (92) connected to the bus bar from the bus bar; terminal members (30, 40) including bus-bar support portions (31, 41) which each have a hollow cylindrical shape extending in the axial directionand in which the bus bar is inserted, and including electrical-device connection portions (32, 42) which each extend in the direction orthogonal to the axis and in which the corresponding insulatingplugs are fixedly inserted; and stud bolts (50) each having one end fixed to the corresponding opening / closing apparatus, extending through the corresponding through holes in the direction orthogonalto the axis, and fixing the corresponding insulating plugs at the other ends thereof, wherein voids (81) allowing communication between the inner spaces (X) of the terminal members and the hollow portion are formed between the stud bolts and the bus bar.

Description

technical field [0001] The present invention relates to an electrical equipment connecting device and a switching device for connecting electrical equipment used for switching, distributing, and disconnecting electric power. Background technique [0002] Conventionally, in switchgears including busbar conductors, there is a structure in which an insulating cylinder having an inner peripheral wall surface is installed on one electrical equipment, and an insulating cylinder is installed on the other electrical equipment in order to electrically connect two electrical equipment. According to one aspect of the electrical equipment, the insulating cylinder has an inner peripheral wall that surrounds the contact terminal and whose diameter gradually decreases from the open end to the closed end, and the insulating column has a diameter corresponding to the inner peripheral wall of the insulating cylinder toward the front end. The outer peripheral wall surface becomes smaller in or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G5/06H02B1/20H02B3/00
CPCH02B13/005H01B17/26H01R24/38H02G5/061
Inventor 山田慎太郎吉田忠広森藤英二黑明慎太郎
Owner MITSUBISHI ELECTRIC CORP
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