JPH08205339A - Gas insulation switchgear - Google Patents

Abstract

PURPOSE: To lessen the cost of a gas insulation switchgear and the entire facility by reducing the installation area. CONSTITUTION: In a gas insulation switchgear which has a single bus and wherein a bus 34 of an upper and-lower two-stage structure is installed in front of a gas cutoff of a bus division unit 1, transformer units for bus measurement 26 which are connected to both ends of the bus division unit 1 are stacked in upper and lower stages on one side of the bus division unit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas insulated switchgear having a single busbar and a busbar of a busbar sectioning unit having a busbar having an upper and lower two-stage structure on the front surface thereof.

[0002]

2. Description of the Related Art The conventional single-wire connection structure of this type of gas-insulated switchgear has the structure shown in FIGS. 1
Is a busbar division unit housed in a container 3 on a pedestal 2 located in the central part, and is composed of a disconnecting switch 6 and a grounding switch 7 which are connected to both ends of a gas circuit breaker 4 via current transformers 5, respectively. Has been done. Reference numeral 8 denotes a line unit housed in containers 9 and 10 on a pedestal 2 arranged side by side on both sides of the container 3, and includes a disconnector 11, a gas circuit breaker 12, a ground switch 13,
14, current transformers 15, 16, disconnector 17, ground switch 1
8, a lightning arrester 19, and an instrument transformer 20.

Reference numeral 21 denotes a transformer unit housed in containers 22 and 23 arranged side by side on the left side of the container 9 and on the right side of the container 10, respectively, which is composed of a disconnector 24 and a grounding switch 25 and is directly connected to the transformer. Has been done. Reference numeral 26 denotes a transformer unit for a busbar instrument housed in containers 27 and 28 arranged side by side on the left side of the container 22 and the right side of the container 23.
9. A ground switch 30 is provided. As shown in FIGS. 7A and 7B, the central portions of the containers 27 and 28 are supported by the gantry 2, and the ground switch 30 is housed in the central portions of the containers 27 and 28.
A grounding transformer 29 is housed in the rear part.

Reference numeral 31 denotes an upper bus bar connecting portion, which is provided on the upper part of the front surface of the container 3 in the central portion and on the upper part of the front surface of each container 9, 22, 27 located on the left side of the container 3. Reference numeral 32 denotes a lower busbar connecting portion, which is provided at the lower portion of the front surface of the container 3 and the lower portion of the front surface of each of the containers 10, 23, 28 located on the right side of the container 3. 33 is a busbar 34
Is a bus line in the left-right direction, in which the bus line 33
Thus, each upper busbar connecting portion 31 and each lower busbar connecting portion 32
Are connected, and each unit 1, 8, 21,
26 is connected. Reference numeral 35 is an operation box provided in front of each gantry 2.

[0005]

In the case of the above-mentioned conventional device, the line unit 8, the transformer unit 21, and the transformer unit 26 for the busbar meter are provided on both sides of the busbar section unit 1 as the center, and seven units are provided. Since the units of (1) are arranged side by side in a horizontal row, a rational arrangement is not performed, a large installation area is required, and there is a problem that the cost of the device and the entire equipment increases.

An object of the present invention is to provide a gas-insulated switchgear in which the installation area is reduced and the cost of the device and the entire equipment can be reduced, keeping the above points in mind.

[0007]

In order to solve the above-mentioned problems, the gas-insulated switchgear of the present invention comprises a single busbar and a busbar having a two-tier structure in the front of the gas circuit breaker of the busbar sorting unit. In the gas-insulated switchgear described above, the busbar instrument transformer units connected to both ends of the busbar segmentation unit are vertically stacked on one side of the busbar segmentation unit.

[0008]

In the gas-insulated switchgear of the present invention constructed as described above, the busbar instrument transformer units respectively connected to both ends of the busbar section unit are stacked vertically on one side of the busbar section unit. The rational arrangement of the transformer unit for the busbar instrument will be performed, the installation area will be reduced, and the cost of the gas insulated switchgear and the entire equipment will be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these drawings, the same symbols as those in FIGS. 5 to 8 indicate the same or corresponding ones, and the different points are as follows.

Containers 28 and 27 in which a transformer unit 26 for a busbar instrument is housed are stacked on a small pedestal 2 and the upper and lower portions 2
In a stacked structure, the busbar segmenting units 1 are arranged side by side on the left side of the container 3 in the central portion, and the upper busbar connecting portions 31 of the containers 3 and 27 and the lower busbar connecting portions 32 of the containers 3 and 28 are arranged. Each is connected by a bus line 33.

Therefore, in the same skeleton, 2
Since each busbar instrument transformer unit 26 has a vertically stacked two-stage structure on one side of the busbar division unit 1,
The installation area of the units arranged in parallel is only 6, and the installation area for one unit can be reduced compared to the conventional case.

[0012]

Since the present invention is constructed as described above, it has the following effects. In the gas-insulated switchgear of the present invention, the busbar instrument transformer units 26 connected to both ends of the busbar segmentation unit 1 have a two-tier structure in which one side of the busbar segmentation unit 1 is stacked. 26 units can be rationally arranged, the installation area of the units installed in parallel is only 6, and the installation area for one unit can be reduced, and the installation area can be reduced. The cost of the insulating switchgear and the entire equipment can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3 is a right side view of a part of FIG. 1. FIG.

FIG. 4 is a circuit diagram of FIG. 1.

FIG. 5 is a front view of a conventional example.

FIG. 6 is a plan view of FIG.

7A and 7B are a left side view of a part of FIG. 5 and a right side view of another part of FIG. 5, respectively.

FIG. 8 is a circuit diagram of FIG.

[Explanation of symbols]

 1 busbar division unit 4 gas circuit breaker 26 busbar meter transformer unit 34 busbar

Claims (1)

[Claims] 1. A gas-insulated switchgear having a single busbar and a busbar having a two-tiered upper and lower structure in front of a gas circuit breaker of the busbar section unit, for busbar meters connected to both ends of the busbar section unit, respectively. A gas-insulated switchgear in which a transformer unit has a vertically stacked two-tier structure on one side of the bus bar sorting unit.