JPS5973819A - Gas insulated switching device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas insulated switchgear, and more specifically, a fixed side electrode and a movable side electrode each have a fixed side contact element and a movable side contact element that move toward and away from each other. This invention relates to a three-phase, wire-type gas-insulated switchgear housed in a grounded closed container.

Conventionally, this type of device, as shown in FIG. Multiple gas insulated switchgear housed in/&...
Conventionally, as disconnectors in such gas-insulated switchgear in which the /71 are used in parallel as appropriate, the linear disconnectors 3 shown in Figure 2 (dark, (b)), the linear disconnectors 3 shown in Figure 3 (a) ), (
There was a right-angled disconnect switch shown in b).

The linear disconnector 3 shown in FIGS. 2(a) and 2(b) has a movable contact 71 that can come into contact with and separate from the fixed contact A/ provided on the fixed electrode 6. , an airtight container supported by an insulating spacer g and grounded! stored in a,
The busbars were connected in a horizontal straight line from left to right. The movable contact 71 was then rotated in an arc shape by a drive device (not shown), moved in the left-right linear direction, and moved toward and away from the fixed contact A/. As shown in FIG. 5(b), such five movable side electric currents fF7 were provided with three phases, and constituted a three-phase linear disconnector 3.

The right-angled disconnect switch shown in Figure 3 (a) and (b) K has a fixed electrode supported by an insulating spacer. and,
The movable side electrode supported vertically by the insulating spacer ffbK is housed in a sealed container to form a three-phase wire-shaped right-angled disconnector, and the fixed side contact 9/ is rotated to connect to the movable side. It was intended to make contact with and separate from the contact 71.

Since the conventional device was configured as described above, although the movable side electrode 7 is shared as a common component between the linear disconnector 3 and the right angle disconnector, the fixed side electrodes 6 and 9 are sealed. The containers 5a and 3b are different in shape and size, so if you do not draw a layout diagram at the time of estimating the gas insulated switchgear, you will be able to distinguish between a straight disconnector and a right-angled disconnector. It is difficult to distinguish between the fixed electrodes, and the fixed electrodes have a complicated shape, which requires a large amount of manufacturing cost, and there are disadvantages such as the fact that the mass production effect cannot be expected by sharing the same parts.

This invention aims to eliminate the drawbacks of the conventional devices as described above, and by improving the movable side electrode, the fixed side electrode and even the sealed container can be used as a linear disconnector by improving the movable side electrode. The main object of this invention is to provide a gas-insulated switchgear that can be used as a common component of right-angled disconnectors.

Another object of the present invention is to provide a connection part on the movable electrode that allows the connection direction of the bus conductor from the closed container to the movable electrode to be selected from the axial direction of the movable electrode and the direction perpendicular to this. To provide a gas insulated switchgear configured so that a linear disconnector and a right-angled disconnector can be used in common by simply replacing parts.

An embodiment of the present invention will be described below with reference to FIGS. In FIGS. 9 to 7, the same reference numerals indicate parts having the same shape and size.

Figures 3 and 3 are linear disconnectors/? Figure 9 (
In a) and (b), the upper and lower openings of the sealed container 7.1 are closed with blind lids /q, and bus conductors 2117.2/ are interposed in the P edge spacers /l that close the left and right openings. movable side electrode 17 and fixed side electrode/4fi
, /4b is installed on 5 so that it is located on a straight line, and the three-phase -
It constitutes a circular linear disconnector/3. /7/ , /
A/ is a movable contact.

This is a fixed side contact. The movable side electrode/7 is shown in FIG. 5(a).

As shown in detail in FIG. 9(b), screws are formed in the axial direction to screw together the two bus conductors, and this bus conductor 22 is the same as the bus conductor 20, 2/2 in FIG. 9(a). are connected by bolts (not shown). A screw 7.7 is also formed on the seat 17 provided perpendicularly to the axis, and the shield cap J is screwed onto it. Disconnected rotation axis, 24
Arms connected to /, 2! A lever and 2t are connected to the arm! By rotating within the range of arrow A, the movable electrode 1
7 in the axial direction.

6 and 7 show a right-angled disconnector 14/, and FIG.
a) In (b), the lower part of the airtight container 15 is closed with a blind lid, and the left insulating spacer itK is connected to the bus conductor 20, . Three movable electrodes 17 are supported via 2/, and the right insulating spacer /lK is arranged so that the three fixed electrodes /Aa and /Ab are located on the same straight line as the movable electrode /7. installed on. The bus conductor core extends vertically from the movable side electrode.

-t extends, the bus conductor provided at the upper insulating spacer itr, the bus conductor at 25F, 2? ,,2t are connected. FIGS. 7(a) and 7(b) show details of the movable side electrode 17, and the screw /7jl'c in the @ line direction connects the shielded bus conductor core 2g to the bus conductor 3/.

From the above, the linear disconnector 13 and the right angle disconnector /f
This means that the sealed container 13 can be shared, and the bus conductor and shield cap 30. By replacing and screwing the shield cap 3 and the bus conductor 31, the linear disconnector 13 and the right-angled disconnector can be used in common.

As is clear from the explanation above, this invention has the following advantages:
Since the linear disconnector and the right-angled disconnector can be used in common by simply replacing some parts, the costs can be kept at the same level for both, resulting in an excellent mass production effect.

[Brief explanation of the drawing]

Fig. 7 is a perspective view of the arrangement of the conventional device, Fig. 2(a), (
b) is a partially longitudinal front view and partially side view of a straight line disconnector, and Figures 3(a) and 3(b) are a partially longitudinal front view and partially side view of a right-angled disconnector, Figures D to 7 show one embodiment of this invention, and Figure 7 (al.
3(b) is a partially vertical front view and partially side view of the linear disconnector, and FIGS. Figure 6 (a
). (bl is a partially longitudinal front view and a partially side view of the right-angled disconnector, and FIGS. 7(a) and 7(b) are a partially vertical front view and a transverse sectional view of the movable electrode.13・・Straight type disconnector, /da・・Right angle type disconnector, 13・
・Airtight container, /Aa, /Ab・・Fixed side electrode, /A/・
・Fixed side contact, /7...Movable side electrode, /71...Movable side contact, 17 pieces, 173...Screw (connection part of bus conductor), /71...Socket, 1g...Insulating spacer ,lde...
Mekura lid, Ko θ. j/, I7J,, 27.2ff, 2q, j/...bus conductor, 23,3θ...shield cap 1.2ri...insulated rotating shaft, 2S...arm, roller...lever. In each figure, the same reference numerals indicate the same parts having the same shape and one dimension. Agent Shin Kuzuno −

Claims (2)

[Claims] (1) In a three-phase circular gas-insulated switchgear having a fixed side electrode and a movable side electrode, each of which is housed in an airtight container and has a contactor that moves toward and away from each other, the fixed side electrode and the movable side electrode are arranged coaxially. The movable side electrode and a connecting part provided on the movable side electrode and selectively connecting a bus conductor from the sealed container to the movable side electrode from the coaxial direction and from the direction perpendicular to the axis. gas insulated switchgear. (2) The gas insulated switchgear according to claim 1, wherein the connecting portion is a screw for selectively screwing together the bus conductor and the shield cap.