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Switching device

A technology of equipment and pressure vessels, which is applied in the field of opening and closing equipment, can solve the problems of reducing the degree of freedom of configuration, equipment length and width, etc., and achieve the effect of expanding the degree of freedom of configuration and easy transportation and maintenance.

Inactive Publication Date: 2008-10-22
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the opening and closing equipment in which the operating mechanism box is arranged at one end of the pressure vessel, although the height of the equipment (the height of the pressure vessel) is not high, the disadvantage is that the length of the equipment is long, so a wide installation space is required, and Reduced degree of freedom in configuration of other devices placed around

Method used

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  • Switching device
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Experimental program
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Embodiment approach 1

[0037] Fig. 1 is a transverse cross-sectional view showing the structure of Embodiment 1 of the switchgear of the present invention. figure 2 It is an enlarged cross-sectional view of a main part of the switchgear shown in FIG. image 3 is a side view of the switchgear of FIG. 1 . Fig. 4 is a plan view of the switchgear of Fig. 1 .

[0038] In FIG. 1 , the switchgear 100 includes: a breaker 10 installed in the center of the pressure vessel 40; A circuit breaker 21 and a second circuit breaker 22; a pressure container 40 for accommodating the circuit breaker 10 and circuit breakers 21 and 22; and an operating mechanism 50 for receiving an operation command from the outside to make the circuit breaker 10 open. The operating mechanism 50 is accommodated in an operating mechanism case 51 provided on the upper portion of the pressure vessel 40 . The circuit breaker 10 and the operating mechanism 50 are connected by a connection mechanism 6 .

[0039] The pressure vessel 40 is i...

Embodiment approach 2

[0050] In the second embodiment, the resistance contact part connected to the resistor is connected in parallel with the main contact part to reduce the pulse at the time of restarting. Fig. 5 is a transverse cross-sectional view showing the structure of Embodiment 2 of the switchgear of the present invention. Figure 6 It is an enlarged cross-sectional view of a main part of the switchgear shown in FIG. Figure 5 and Figure 6 Among them, in the switchgear 100A of the present embodiment, the circuit breaker 10A has the structure of the circuit breaker 10 of the first embodiment, and the resistance contact part 3 is added thereto. The resistance contact part 3 is connected in parallel with the main contact part 1 . In addition, the resistance contact part 3 is connected in series with the resistor 9 .

[0051] Figure 6 Among them, the circuit breaker 10A is equipped with: a main contact part 1 composed of a movable main contact 1a and a fixed main contact 1b, and an interp...

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PUM

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Abstract

The invention provides an operable device that is capable of reducing an equipment height from a set face, to make transport and maintenance / repair operation easier, and increase degree of freedom for configuration of other equipment configured around, comprising a main contact part (1) (figure 2) having a moving main contact (a moving contact) (1a) and a fixed main contact (1b); a pressure vessel (40) that takes a moving direction of the moving contact (1a) as a length direction, accepts the main contact in an insulating state inside and is filled with insulating gas, to be arranged in a state that the length direction remains level; an operation mechanism (50) arranged above the pressure vessel (40), to be connected with the moving contact (1a) through a connecting mechanism (6) formed of an insulating material.

Description

technical field [0001] The invention relates to a switching device used in power systems such as power generation and transformation. Background technique [0002] Conventionally, switchgear includes a main contact portion having a fixed contact, a movable contact that contacts and separates from the fixed contact, and a pressure vessel that accommodates the main contact portion and is filled with an insulating gas. Moreover, many of these switching devices are provided with an operating mechanism that moves the movable contact forward and backward relative to the fixed contact to open and close the main contact portion. [0003] The operating mechanism is generally hydraulic, driven by an energy storage medium, and connected to the movable contact through an electrically insulated insulating control rod and a connecting rod mechanism. Furthermore, upon receiving an operation command issued during an accident of the power system, the hydraulic operating mechanism operates t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/02
Inventor 小松健松田大二森智仁
Owner MITSUBISHI ELECTRIC CORP
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