JPS62110407A - Isolated phase gas insulated switchgear - 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] [Industrial application field] The present invention relates to a fully phase separated gas insulated switchgear.

[Conventional technology]

This type of fully phase-separated gas insulated switchgear is, for example, as described in Japanese Unexamined Patent Publication No. 1@56-139014, which is provided above and below one side of a vertically arranged gas breaker for each phase. For each phase, a switching circuit is provided independently for each phase by connecting a gas insulated conductor having, for example, a center conductor, a disconnector, an instrument current transformer, etc. built into a container, to the connection part. The main bus bar connected to the insulated conductor is arranged with one phase on the central axis of the gas insulated conductor and other phases above and below the one phase,
It is said that there are fewer right-angled bends. Such an arrangement is certainly effective in a specific circuit configuration, that is, in the case of a single busbar.

[Problem that the invention seeks to solve]

However, if a woman had a double busbar configuration, it would be difficult to configure the other main busbar, and it would be necessary to change the arrangement somewhat, and no consideration was given to standardizing other busbars other than the main busbar.

In addition, according to the conventional gas insulated switchgear with this arrangement, a space is created at the bottom of the lower branch container of the vertical breaker and the cable head is connected, so it is important to use this space effectively. Consideration has also been given to

An object of the present invention is to provide a fully phase-separated type gas-insulated switchgear in which the arrangement of the elements constituting the device can be shared with the conventional arrangement and the structure of the main bus bar can be simplified. It is in.

[Means for solving problems]

The present invention, which solves the above-mentioned problems, is constructed by connecting gas insulated conductors to the connection parts provided on one side of a vertically arranged gas breaker, and connecting the main bus bar etc. to the gas insulated conductors. In the all-phase separated type gas insulated switchgear in which a switching circuit is individually provided for each switch, each gas insulated conductor connected to the lower connection part of the gas breaker is arranged in a straight line with respect to the connection part. Each circuit breaker is constructed of a conductor and a circuit means arranged perpendicularly to the conductor, each having an abbreviated appearance (built-in), with each of the circuit means facing downward in the vertical axis direction of each circuit breaker. one phase of the busbars connected to each of the circuit means is provided on the central axis of one of the circuit means, and the busbars of the other phases connected to the other circuit means are arranged on the central axis of one of the circuit means. It is displayed by being placed on the left and right of the phase generatrix.

[Effect]

According to the present invention, elements other than the main bus bar can be used in common with elements of conventional products, and since the lower gas insulated conductor 1c is provided in a suspended state, the complicated main bus mount is not required. It can be omitted and the configuration can be simplified.

〔Example〕

An embodiment of the present invention will be described below.

FIG. 2 is a circuit diagram of a gas insulated switchgear which is the basis of the present invention. The circuit shown in FIG. 2 has a double bus configuration, with main buses IA and IB, two disconnectors, 2B and 8
, grounding devices 3 , 7 and 9 , instrument current transformers 4 and 6 , gas breaker 5 , and cable head 10 .

FIG. 1 shows an embodiment of the present invention, for example, a second embodiment of the present invention.
It is a front view which shows the example of a structure when applied to the circuit structure of a figure. In FIG. 1, connection parts 50 and 51 are provided above and below one side of the vertically arranged gas breaker 5, and the upper connection @SO includes a center conductor, a disconnector 8, a grounding device 7,
A substantially linear gas insulated conductor 14 formed by a container 140 containing a conductor 9 or the like is connected thereto, and a cable head 10 is connected to the tip of the gas insulated conductor 14 at a substantially right angle.

On the other hand, in the lower connection part 51 of the gas breaker 5.

A conductor 20A that is almost linear with respect to the lower connection part is built in, and two disconnection parts as circuit means arranged at right angles to the conductor 20A are built into the container 150, which has an abbreviated appearance. A gas insulated electric wire 15 made of the following is connected. The gas insulated wire 15 also has the connecting portion 51.
A linear conductor 20B is connected to the conductor 20B, and a gas insulated electric wire 15 is connected, which has a new path section 2B as a circuit means disposed perpendicularly to the conductor 20B and housed in an abbreviated container 160. has been done. Such containers 150.160
is supported on a pedestal 12.13. Then, one gas-insulated main bus bar, IB, is connected to one or both of the containers 150 and 160, and one phase, for example, the V phase, is coaxially connected to the disconnection portions 2A and 2B of the containers 150 and 160.
The other U-phase and W-phase are separated to the left and right of the V-phase and arranged so that the three phases are located at the vertices of an equilateral triangle. By arranging the main busbars IA and IB in this way, the container 140.15
0.160 can be constructed with the same dimensions as the element in the case where the main bus bar is a three-phase unit, and it is possible to standardize the product.

In addition, in this configuration, the main bus bars IA and IB are connected to the container 1.
50,160, and the container 150°160 is placed on the stand 1.
The structure is supported by 2.13. According to this structure, there is no need for a pedestal to be provided on the main bus bar in the conventional building block system, and the container structure becomes simple. Furthermore, when the current flowing through the main bus bar is high, there is no need to insulate the main bus bar from the main body base, resulting in a very simple structure.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to apply to various circuit configurations without destroying all conventional configurations with regard to the components other than the main bus bar, so that product standardization can be achieved.

Moreover, according to the present invention, the main bus bar is suspended, and the frame to be provided on each main bus bar is omitted, so that the structure is simplified.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a gas insulated switchgear according to the present invention, and FIG. 2 is a circuit diagram to which the present invention is applied. LA, IB...Main bus, 2 people, 2B, 8...Disconnector, 3.7.9...Grounding device, 4.6...Measurement current transformer, 5...Gas cutoff device, 10... cable head, 11... control kini vehicle, 12, 13.
... mount. 14.15.16...Gas insulated wire, 140,150
゜160...Container.

Claims (1)

[Claims] 1. Connect gas insulated conductors to the upper and lower connections on one side of the vertically arranged gas breaker, and connect the main bus bar etc. to the gas insulated conductors to create a switching circuit for each phase. In a fully phase-separated gas insulated switchgear provided individually for each gas breaker, each gas insulated conductor connected to the lower connection part of the gas breaker includes a conductor that is straight with respect to the connection part, and a conductor that is in a straight line with respect to the connection part, and Each of the circuit means is arranged perpendicularly to the circuit breaker and is built in a container having a substantially L-shaped appearance, and each of the circuit means is arranged toward the lower side in the longitudinal axis direction of each of the circuit breakers, and each of the circuit means is arranged at right angles to the One phase of the busbars connected to the circuit means is provided on the central axis of one of the circuit means, and busbars of other phases connected to the other circuit means are on the left and right sides of the one-phase busbar. A fully phase-separated gas insulated switchgear characterized by the following: