JPS6311005A - gas circuit breaker - 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] [Object of the Invention] (Industrial Application Field) The present invention provides three shutoff parts each housed in six separate cylinders.
This invention relates to phase-type gas circuit breakers, and particularly to improvements in the arrangement and structure of three-phase circuit breakers.

(Prior Art) Generally, a gas circuit breaker is constructed by connecting a bushing, a circuit breaker main body, an operating mechanism section, a coupling mechanism section, a pedestal, and the like.

Further, the circuit breaker main body is composed of a contact part, a current carrying part, an insulating part, and a cylindrical container that covers these parts.

As shown in FIGS. 3 and 4, the three-phase circuit breaker bodies 2a, 2b, and 2c are separately arranged in parallel and on the same plane on the pedestal 1. There is. Also,
Each circuit breaker body 2a, 2b.

In 2C, e is inside the cylindrical containers 3a, 3b, and 3C.
′? This cylindrical container 3a contains a blocking part (not shown).
, 3b, and 3C are filled with insulating gas. Then, the cylindrical containers 3a, 3 of each circuit breaker main body 2a, 2b, 2C
There are two outlet parts 3at and 3bt on the upper side of b and 3c, respectively.
, 3Ct are provided, and the outlet portions 3a+, 3bt
, 3Ct, the bushings 4a are inclined so as to open outward from each other along the longitudinal direction of the circuit breaker bodies 2a, 2b, 2C.
, 4b, and 4C are attached.

Roughly speaking, there is one operation Bi 4M section 5 on one side of the pedestal 1.
is provided, and each circuit breaker main body 2a is connected to the circuit breaker body 2a via the drive device 6 in the operation mechanism section 5 and the connection mechanism section 7.

A blocking portion (not shown) inside 2b and 2c is connected to the movable side. This connection mechanism section 7 is connected to each circuit breaker main body and, for example, link sections 9a, 9. b and 9c, respectively.

In such a conventional gas circuit breaker, the circuit breaker body 2a,
Since 2b and 2G are disposed horizontally to the longitudinal direction of the pedestal 1, the width W and the longitudinal dimension of the pedestal 1 become longer.

Further, since the operating mechanism section 5 is provided on the side surface of the pedestal 1, there is a problem that the width dimension X of the entire gas circuit breaker becomes long, and the installation area of the entire gas circuit breaker becomes large.

(Problems to be Solved by the Invention) As described above, in the conventional gas circuit breaker, the circuit breaker main body is arranged horizontally to the longitudinal direction of the mount, and the operation Ia
Since the structure was installed on the side of the frame, the entire installation area of the gas circuit breaker was large.

An object of the present invention is to provide a gas circuit breaker which is downsized as a whole and requires a small installation area.

[Structure of the Invention] (Means for Solving the Problems) The gas circuit breaker of the present invention has the following features: ■ A medium phase container is provided on the pedestal perpendicular to the pedestal, and the other two phases are connected around this medium phase container. The containers are arranged vertically so that they open in a v-shape in front of and behind the medium phase container.

(2) Bushings are installed at the outlet provided at one end of the tip of the cylindrical container for each phase, and at the outlet provided inclined in the axial direction in the middle of the container.

(2) An operating mechanism section is provided at one end of the pedestal, and a connecting mechanism section of this operating mechanism section is housed inside the pedestal, and this connection opening groove is connected to the movable section of the circuit breaker main body of each phase.

As described above, the structural features are as follows.

(Function) The gas circuit breaker of the present invention having the above-mentioned configuration has a medium-phase container arranged vertically on a pedestal vertically to the pedestal, and the other two phases vertically arranged in a V-shape in front and behind the medium-phase container. In addition, by placing the connection mechanism between the operating mechanism and the circuit breaker inside the pedestal,
The longitudinal and width dimensions of the frame can be reduced, and the overall installation area can be reduced.

(Example) Next, an example of the gas circuit breaker of the present invention will be described with reference to FIGS. 1 and 2.

Note that the same parts as those in the prior art are given the same reference numerals and the description thereof will be omitted.

*Configuration of Example* As shown in FIG. 1, a three-phase circuit breaker body 21a is filled with insulating gas on the center of the horizontal plane of the pedestal 20.

Cylindrical containers 22a, 22b, 22C are provided. These cylindrical containers 22a, 22b,
22G, a medium-phase container 22b is provided perpendicularly to a pedestal,
Centering around this medium phase container 22b, other two phase containers 228
．． 22C are vertically arranged so as to open in a V-shape at the front and rear of the medium-phase container 22b. These cylindrical containers 22a, 22b,
A circuit breaker 23 is housed in 22c, and this circuit breaker 23
is composed of a fixed electrode part 24 and a movable electrode part 25 that is provided opposite to the fixed electrode part 24 so as to be able to come into contact with and separate from it, and the fixed electrode part 24 and the movable electrode part 25 bs are each electrically connected to a bushing 26. It is introduced externally via .27.

These bushings 26, 27 are connected to the cylindrical containers 22a, 2
2b, 22c have an opening provided at one axial end of the upper end thereof, and a container 22a that is inclined from the axial direction.

22b and 22G are respectively attached to the outlet portions provided in the inner grooves. Roughly, an operating mechanism section 5 is provided at one end of the pedestal 20, and this operating mechanism section 5 is connected to the seats 71 to 28.
are connected to levers 29a, 29b, and 29c of a connecting mechanism section 29 provided inside the pedestal 20, and each lever 29
a, 29b, 29c are circuit breaker main bodies 21a, 21b, 2
It is connected to the movable side insulating rods 30a, 30b, 30c of 1c via rotary seal parts 31a, 31b, 3'IC, respectively.

Effects of this embodiment * In this embodiment configured as described above, the other two phases 22a and 22C are arranged on the pedestal so as to open in a V-shape with the middle phase container 22b at the center. Circuit breaker body 21a
, 21b, 21c, the longitudinal dimension required for installation is L1.
The dimensions are smaller than the previous dimensions. Further, the bushings 26° 27 are connected to the cylindrical containers 22a, 22b, 22.
c, and since the two connecting parts 914M of the operating mechanism part 5 were housed inside the pedestal 20,
The width dimension of the pedestal 20 is now the W1 dimension, which is narrower than the conventional ~■ dimension.

[Effects of the Invention] As described above, according to the present invention, the three-phase cylindrical container housing the gas circuit breaker main body is provided with the middle phase container perpendicular to the pedestal,
The other two phases are vertically arranged in a V-shape in front of and behind the middle phase container, and the coupling machine (the front part is placed inside the pedestal) increases the width of the pedestal and the longitudinal dimension of the pedestal. It is possible to provide a gas circuit breaker with a reduced installation area.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view of a gas circuit breaker showing an embodiment of the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a partially sectional side view of a conventional gas circuit breaker. FIG. 4 is a front view of FIG. 3. 1... Frame, 2a, 2b, 2G... Circuit breaker body, 3
a. 3b, 3c... Cylindrical container, 3at, 3bt, 3
C1...Cylindrical container outlet, 4a, 4b, 4G...
Bushing, 5... operating mechanism section, 6... drive device,
7... Connection mechanism part, 8... Shaft, 9a, 9b,
9c... Link part, 20 ・W stand, 21 a, 21
b, 21 c--breaker body, 22a, 22b, 22
c... Cylindrical container, 23... Rapid cutting part, 24... Fixed electrode part, 25... Movable electrode part, 26.27... Bushing, 28... Shaft, 29... Connection Mechanism part, 30a, 30b, 3OC... movable side insulating rod,
3Ta, 31b, 31C...Rotary seal portion.

Claims (1)

[Scope of Claims] A circuit breaker body is constructed by housing a circuit breaker body in which a fixed electrode section and a movable electrode section are arranged so as to be able to come into contact with and separate from each other in a cylindrical container. In a three-phase integrated gas circuit breaker connected to the coupling mechanism of the operating mechanism, an outlet is provided at one end of the tip of the cylindrical container for each phase, and an outlet is provided in the middle of the container at an angle in the axial direction. A bushing is installed at each outlet and a medium phase container is placed on the stand perpendicular to the stand, and the other two phase containers are opened in a V shape in front and behind the medium phase container, centering around this medium phase container. The circuit breaker is arranged vertically, an operating mechanism section is provided at one end of the pedestal, a connecting mechanism section of this operating mechanism section is disposed inside the pedestal, and this connecting mechanism is connected to the movable section of the circuit breaker main body of each phase. A gas circuit breaker characterized by: