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Gas insulating switch device

A gas-insulated switch and insulating rod technology, applied in switchgear, switchgear setting, air switch parts and other directions, can solve the problem of increased assembly time, difficulty in adjusting the movable contact to the correct position, and driving the movable contact part. Complex structure and other problems, to achieve the effect of reducing manufacturing cost and high quality

Active Publication Date: 2013-05-15
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the rod is separated, and the structure of the parts that drive the movable contact becomes complicated.
In addition, since it is necessary to fasten bolts inside the conductor, there are problems such as poor efficiency of assembly work.
In addition, insulating rods of one-piece structure are usually cast-molded objects, which cannot obtain high dimensional accuracy
Therefore, it is difficult to adjust the movable contact to the correct position, and the assembly time increases

Method used

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  • Gas insulating switch device
  • Gas insulating switch device
  • Gas insulating switch device

Examples

Experimental program
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Effect test

no. 1 approach

[0050] use figure 1 and figure 2 The first embodiment of the present invention will be described. figure 1 It is a schematic front view of a partial section of the gas insulated switchgear according to this embodiment. figure 2 yes figure 1 The cross-sectional view in the direction of II-II shows the state where the second movable rod 52 is electrically connected to the conductor 70 on the fixed side of the circuit breaker.

[0051] First, the configuration of the gas insulated switchgear of the present embodiment will be described.

[0052] The gas insulated switchgear of this embodiment has the following two functions: a function of turning on and off the energization of each phase of the three-phase current as a circuit breaker, and a function of connecting to a grounded electrical contact as a grounding switch.

[0053] This gas insulated switchgear has: a box body 1 enclosing an insulating gas 2 such as SF6; an insulating rod 20 arranged in the box body 1; a plurali...

no. 2 approach

[0087] use image 3 and Figure 4 A second embodiment of the gas insulated switchgear of the present invention will be described. image 3 It is a partially cutaway schematic front view of the gas insulated switchgear according to this embodiment. Figure 4 yes image 3 A cross-sectional view taken along the direction IV-IV of the gear engagement portion 90 of the insulating rod 20 and the second pinion gear 32 . In addition, this embodiment is a modified example of the first embodiment, and the same part as the first embodiment or a similar part is given the same code|symbol, and repeated description is abbreviate|omitted.

[0088] In this embodiment, if Figure 4 As shown, the gear engaging portion 90 of the insulating rod 20 fitted in each of the first to third pinion gears 31 to 33 is formed in a regular hexagonal shape in cross section. In addition, the holes formed in the center of each of the first to third pinion gears 31 to 33 into which the gear engaging portion...

no. 3 approach

[0095] use Figure 5 ~ Figure 7 A third embodiment of the gas insulated switchgear of the present invention will be described. Figure 5 It is a partially cutaway schematic front view of a third embodiment of the gas insulated switchgear of the present invention. Figure 6 yes Figure 5 Ⅵ-Ⅵ direction cross-sectional view. Figure 7 yes Figure 6 The enlarged cross-sectional view of part VII in middle.

[0096] In addition, this embodiment is a modified example of the first embodiment, and the same part as the first embodiment or a similar part is given the same code|symbol, and repeated description is abbreviate|omitted.

[0097] In the present embodiment, the pressing portion 65 is formed at a portion where the insulating rod 20 penetrates the second movable-side conductor 12 .

[0098] The pressing portion 65 is arranged at a position facing the second rack 42 across the insulating rod 20 , and forms the insulating rod 20 so as to cover a part of the peripheral surface ...

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Abstract

The invention provides a gas insulating switch device with high quality and low manufacturing cost. According to embodiments, the gas insulating switch device is provided with a case body (1) which is filled with insulating gas (2), an insulating rod (20) which integrally and axially stretches and is rotationally, freely and directly supported on two bearings (61, 62) and is arranged in the case body (1) and made of insulating materials, an electric contact part which is arranged in the case body (1) and formed by a conductor, movable rods (51-53) which are capable of moving in the case body (1) and electrically connected or disconnected with the electric contact part and formed by the conductor, and a force transmitting mechanism which is used for mechanically clamping the insulating rod(20) and the movable rods (51-53) and enabling the movable rods (51-53) to movably transmit the force via the rotating force when the insulating rod (20) rotating.

Description

technical field [0001] Embodiments of the present invention relate to a gas insulated switchgear including a movable contact that can be electrically connected to or disconnected from an electric contact portion. Background technique [0002] Insulating rods for operating disconnect switches and earthing switches are made by molding electrodes with epoxy resin. For example, in order to operate a three-phase type circuit breaker or a grounding switch, a member for moving a rod-shaped or blade-shaped circuit breaker movable contact is mechanically engaged with an electrode of an insulating rod. [0003] As shown in, for example, Patent Document 1, in a switchgear that performs connection or disconnection of such contacts, it is known that a shaft is held by a conductor on a movable side of a circuit breaker. In addition, as shown in Patent Document 2, there is known a structure in which phase-to-phase and ground insulating rods are integrated. [0004] Patent Document 1 Japa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B13/035H01H31/10
Inventor 矢永博纪真田靖宪
Owner KK TOSHIBA