JPH09149513A - Cubicle-housed switchgear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to reduce the height of a case and diversify the arrangement of devices in the case. SOLUTION: This switchgear consists of devices, such as circuit breakers CB1, CB2 and disconnectors DS1, DS2 housed in a cubicle-type case 100. A device mounting plate 101 is secured inside the case 100 with its face in the vertical direction. The circuit breakers CB1, CB2 are placed with their axis turning in the horizontal direction and their ends secured on respective circuit breaker mounting plates 109 on one end. The circuit breaker mounting plates 109 holding the circuit breakers CB1, CB2, respectively, are secured in proximity to the periphery of windows 101a, 101b formed in the device mounting plate 101. The circuit breakers are so designed that it will be possible to connect either of external terminal conductors 116, 117 facing upward and external terminal conductors 116', 117' facing downward to the circuit breakers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cubicle storage type opening / closing device including a cubicle type outer shell container and a gas circuit breaker housed in the outer shell container.

[0002]

2. Description of the Related Art As a switchgear installed in power distribution equipment, a cubicle storage type switchgear having a structure in which a gas circuit breaker and other appropriate devices connected to the circuit breaker are housed in a cubicle type outer shell container. Is used.

In the present specification, "cubic type"
The term "box" means a box-like shape having a substantially rectangular parallelepiped or cubic shape.

FIG. 7A shows an example of a conventional switchgear of this type. This switchgear has a cubicle-shaped outer shell container 1 in which a three-phase gas circuit breaker CB and a three-phase gas circuit breaker are provided. The disconnector DS, the three-phase connector C for connecting an external circuit, the circuit breaker operating device 4, the disconnecting switch operating device 5, and the like are housed.

The container 1 is constructed so as to have a vertically long rectangular parallelepiped shape, and openable and closable inspection doors 1A and 1B are provided above and below the front surface of the container 1. In the cubicle container 1, a device mounting plate 6 whose plate surface extends in the vertical direction is provided so as to divide the container into two chambers, a device storage chamber 1a on the front side and a device storage chamber 1b on the back side. There is. The device mounting plate 6 includes a circuit breaker CB, a disconnector DS, and a connector C.
Etc. are attached, but a window portion 6a is provided in the portion to which the circuit breaker CB is attached, as shown in FIG. 8 (A).

As shown in FIGS. 8A and 8B, the gas circuit breaker CB includes a fixed contact 2B and a movable contact 2C in a cylindrical breaker container 2A made of an insulating resin material such as epoxy resin. The housing has a structure in which an end terminal block 2D connected to a fixed contact and an intermediate terminal block 2E connected to a movable contact are fixed to one end side and an intermediate part of an axial direction of a blocking part container, respectively. .

In the illustrated gas circuit breaker 2, the fixed contact 2B is a tulip contact held by a conductor 2F electrically and mechanically connected to the end terminal block 2D. The movable contact 2C is made of a tubular conductor slidably supported by the intermediate terminal block 2E via the sliding contact 2G and has a tip end portion in contact with the fixed contact 2B from the inside, and a rear end portion of the movable contact 2C is insulated. Operating rod 2
It is connected to the operation lever 2I via H. In the illustrated example, an arc drive coil 2J is provided so as to concentrically surround the fixed contact 2B. One end of the arc drive coil 2J is the fixed contact 2B and the other end is the movable contact side of the arc drive coil 2J. Is connected to an annular arc rotary plate 2K arranged at the end of the.

The end terminal block 2D is made of a conductor fitted to the inner peripheral portion of the one end side of the container so as to hermetically close the opening on the one end side of the blocking part container, and is provided on the end surface of the terminal block 2D. An external terminal conductor 2L for connecting other equipment is bolted. A part of one end of the shutoff container 2A is extended,
A protective wall 2a having a C-shaped cross section that is opened in a direction perpendicular to the axis of the shutoff container is provided, and another device is connected to the external terminal conductor 2L through the opening 2a1 of the protective wall 2a.

The intermediate terminal block 2E is cast in the intermediate portion of the shutoff container 2A, and a part of the terminal block 2E is protected by the protective wall 2a.
The external terminal conductor 2M for connecting another device is bolted to the exposed portion of the intermediate terminal block 2E, which is exposed to the same side as the opening 2a1.

The operating shaft 2P for supporting the operating lever 2I penetrates through the bearing of the airtight holding structure cast in the shutoff container 2A and is led out to the outside to reciprocally rotate the operating shaft 2P by a predetermined angle. Thus, the movable contact 2C is linearly displaced to displace the movable contact between the closing position and the closing position.

The other end of the shutoff container 2A in the axial direction is the bottom plate 2.
It is hermetically closed by N, and SF ₆ gas as an insulating arc extinguishing medium is sealed at a predetermined pressure in the shutoff container 2A. A mounting member 7 is fixed to the bottom plate 2N of the breaking unit container 2A, and the mounting member 7 is connected to one surface of a circuit breaker mounting plate 8 provided with the plate surface parallel to the axis of the breaking unit container 2A. There is. The circuit breaker operating device 4 is attached to the other surface of the circuit breaker mounting plate 8, and the output shaft of the operating device 4 is a connecting shaft provided in a state where the circuit breaker mounting plate 8 is hermetically and slidably pierced. It is connected to the operation shaft 2P via 9 and a lever 10.

The illustrated gas circuit breaker CB is known as an arc rotation type circuit breaker and has external terminal conductors 2L and 2M.
Is connected to a predetermined external main circuit (a circuit through which the main circuit current flows). In this state, when the movable contact 2C is in contact with the fixed contact 2B as shown in FIG. 8B, an external main circuit (not shown) -external terminal conductor 2L-end terminal block 2D-fixed contact 2B-movable contact 2C-
Sliding contact 2G-Intermediate terminal block 2E-External terminal conductor 2M-
A main circuit current flows through a path of an external main circuit (not shown). When the movable contact 2C is separated from the fixed contact 2B in order to cut off the main circuit current, an arc is generated between both contacts, and an exciting current flows through the arc drive coil 2J from the moment the arc contacts the arc rotating plate 2K. The magnetic flux generated from the arc drive coil 2J is linked to the arc by this exciting current, so that a strong rotational force is applied to the arc and the arc is rotated at high speed along the arc rotating plate 2K. By the rotation of this arc, S
Since the F ₆ gas is blown, the arc is cooled and extinguished by the cooling action of the SF ₆ gas.

The three-phase circuit breakers CB are arranged side by side in a direction perpendicular to the plane of the paper of FIG. 7 with the axes of the respective circuit breaker containers 2A oriented vertically. The mounting bracket 7 fixed to the bottom plate 2N is connected to a circuit breaker mounting plate 8 commonly provided for three-phase circuit breakers. Then, with the circuit breaker CB positioned in the device storage chamber 1b on the back side of the outer shell container 1, the circuit breaker mounting plate 8 is arranged so as to close the window 6a of the device mounting plate 6,
The circuit breaker CB is mounted on the device mounting plate 6 by hermetically connecting the peripheral part of the circuit breaker mounting plate 8 to the peripheral part of the window of the device mounting plate 6.

In the device housing chamber 1b on the back side of the outer shell container 1, a three-phase disconnecting switch DS is arranged in a state of being located above each of the three-phase circuit breakers CB. The disconnector DS is attached to the device mounting plate 6. The disconnector operating device 5 is arranged in the device storage chamber 1a on the front side of the outer shell container 1, and the output shaft of the operating device 5 is connected to the operating shaft of the disconnecting device DS via a connecting mechanism (not shown).

The disconnector DS is a known one having a fixed contact and a movable contact that can be displaced between a position in contact with the fixed contact and an open position separated from the fixed contact. The fixed contact side connected to the fixed contact The terminal 10a and the movable contact side terminal 10b connected to the movable contact are vertically provided.

Three-phase connectors C are arranged side by side in the vertical direction in the upper part of the equipment storage chamber 1a on the front side of the outer shell container 1, and the three-phase connectors C are fixed to the equipment mounting plate 6. The terminal conductors 11 of these connectors are led out into the device storage chamber 1b on the back side of the outer shell container. The external terminal conductor 2L on the fixed contact side of the circuit breaker CB and the movable contact side terminal 10b of the disconnector DS are connected by the connection conductor 12, and the external terminal 2M on the movable contact side of the circuit breaker CB is connected to the connection conductor 13. Connected to other devices via. Further, the fixed contact side terminal 10a of the three-phase disconnector DS and the terminal conductor 11 of the three-phase connector C are connected via a connection conductor 14. The electrical configuration of the switchgear shown in FIG. 7 (A) is as shown in the single line connection diagram in FIG. 7 (B).

In this type of switchgear, gas insulation may be used and air insulation may be used to insulate equipment such as circuit breakers and disconnectors. When gas insulation is adopted, the equipment storage chamber 1b on the back side of the outer shell container 1 is formed airtight, and SF ₆ gas is sealed at a predetermined pressure in the equipment storage chamber 1b.

[0018]

In the conventional cubicle storage type opening / closing device, the direction of pulling out the external terminal from the circuit breaker is restricted to one direction. Therefore, the arrangement of the circuit breaker in the outer shell container and other devices There is a problem in that when the arrangement of the equipment in the outer shell container is required to be changed, there is a limitation in the arrangement of the arrangement, and the requirement cannot be easily dealt with.

Further, in the conventional switchgear, since the circuit breaker is arranged with the axis of the breaker container oriented in the vertical direction, the height of the switchgear becomes large and the device becomes large. was there. In particular, when the switchgear is installed inside a building such as a building, the height of the outer shell container is limited. Therefore, when it is necessary to provide a circuit breaker for opening and closing a plurality of lines in the switchgear, It is often difficult to store the circuit breakers for multiple circuits side by side in the outer shell container, in which case it is necessary to arrange the circuit breakers for multiple circuits side by side. However, there has been a problem that the lateral dimension of the outer shell container becomes large and the floor area occupied by the device increases.

It is an object of the present invention to provide a cubicle storage type opening / closing device in which the height of the outer shell container is prevented from increasing and the device is downsized.

Another object of the present invention is to reduce the restrictions on the arrangement of the circuit breaker and other equipment in the outer shell container, and change the arrangement of the equipment to accommodate various electrical system connections. It is an object of the present invention to provide a cubicle storage type opening / closing device capable of easily dealing with the above.

[0022]

SUMMARY OF THE INVENTION According to the present invention, a breaking portion having a fixed contact and a movable contact is housed in a breaking portion container made of an insulating material, and one end side and an intermediate portion in the axial direction of the breaking portion container are respectively provided. A gas circuit breaker, in which an end terminal block connected to a fixed contact and an intermediate terminal block connected to a movable contact are fixed, is housed in a cubicle type outer shell container together with other devices connected to the circuit breaker. It relates to a cubicle storage type opening / closing device.

In the present invention, a device mounting plate whose plate surface extends in the vertical direction is arranged in the outer shell container, and the device mounting plate is fixed to the outer shell container.

Further, a circuit breaker mounting plate having a plate surface orthogonal to the axis of the circuit breaker container is fixed to the other end side of the circuit breaker container of the gas circuit breaker in the axial direction.

The gas circuit breaker is mounted by arranging the container of the circuit breaker with the axis of the container oriented horizontally and fixing the circuit breaker mounting plate to the device mounting plate.

Further, the end terminal block and the intermediate terminal block of the gas circuit breaker are provided so that external terminal conductors for connecting other devices can be attached either in the upward or downward direction.

As described above, when the circuit breaker container of the circuit breaker is arranged with the axis lined in the horizontal direction, the space occupied by each circuit breaker in the vertical direction in the outer shell container becomes small.
The height dimension of the outer shell container can be reduced.

Further, by arranging the circuit breaker container of the circuit breaker with the axis lined in the horizontal direction as described above, the circuit breakers for a plurality of lines can be vertically moved without increasing the height of the outer shell container. Since they can be arranged side by side in the direction, the switchgear for a plurality of lines can be configured without increasing the occupied floor area.

Further, as described above, when the external terminals can be pulled out from the end terminal block and the intermediate terminal block of the circuit breaker in any of the upper and lower directions, the arrangement of the equipment in the outer shell container. When it is necessary to change the above, the request can be easily met, and the design of the cubicle storage type opening / closing device can be facilitated.

In the present invention, the intermediate terminal block is provided at the intermediate portion in the axial direction of the shutoff portion container, but the "intermediate portion" need not be the central portion in the axial direction of the shutoff portion container, and the shutoff portion is not required. It may be an appropriate position between one end and the other end in the axial direction of the partial container.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1A shows an embodiment of the present invention. In this example, as shown in FIG. 1B, two lines L1 and L2 are connected to two lines. It is assumed that the switchgear is used when connecting to the cable Lo through the circuit breakers CB1 and CB2, the disconnectors DS1 and DS2 and the connector C.

In FIG. 1 (A), 100 is a cubicle-shaped outer shell container, and an openable door 100A is attached to the front surface of the outer shell container 100. Outer shell container 10
In 0, there is a device mounting plate 1 whose plate surface is vertically aligned.
01 is provided. The device mounting plate 101 is provided so as to partition the inside of the outer shell container 100 into a device storage chamber 100a on the front side and a device storage chamber 100b on the back side. The device mounting plate 101 is provided on the upper end side and the lower end side of the device mounting plate 101, respectively. Rectangular window portions 101a and 101b for mounting the gas circuit breakers CB1 and CB2 are provided.

The gas circuit breakers CB1 and CB2 are shown in FIG.
And (B). In FIG. 2, reference numeral 102 denotes a cylindrical blocking portion container made of an insulating resin material such as epoxy resin, and the blocking portion container 102 accommodates a blocking portion having a fixed contact 103 and a movable contact 104. An end terminal block 105 connected to a fixed contact and an intermediate terminal block 106 connected to a movable contact are fixed to one end side and an intermediate part of the blocking part container 102 in the axial direction, respectively.

The fixed contact 103 is an end terminal block 105.
It consists of a tulip contact carried by a conductor 107 electrically and mechanically connected to. In addition, the movable contact 104 is connected to the intermediate terminal block 106 by sliding contacts 1
The tubular conductor is slidably supported via 08 and has a tip end portion which is in contact with the fixed contact 103 from the inside.

In this example, the other end of the shutoff container 102 is
It is airtightly connected to the back surface of the circuit breaker mounting plate 109 having a plate surface orthogonal to the axis of the circuit breaker container, and is located on the front surface of the circuit breaker mounting plate 109 facing the circuit breaker container 102.
The mechanical case 110 is hermetically connected. An operation shaft 111 is supported by penetrating a bearing (not shown) having an airtight holding structure attached to a side wall of the mechanism case 110, and an operation lever 112 is attached to the operation shaft 111. The circuit breaker mounting plate 109 is provided with a hole 109a for communicating the inside of the breaker container 102 and the inside of the mechanism case 110, and the rear end of the movable contact 104 and the operating lever 11 are provided.
2 are connected via an insulating operating rod 113.

In the illustrated example, an arc drive coil 114 is provided so as to concentrically surround the fixed contact 103. One end of the arc drive coil 114 is the fixed contact 103 and the other end is the arc drive coil 114. Annular arc rotating plate 11 arranged at the end on the movable contact side
5 is connected.

The end terminal block 105 is composed of a disc-shaped conductor fitted to the inner peripheral portion of one end side of the container 102 via a packing so as to hermetically close the opening on the one end side of the shielding part container 102. , So that the entire end surface is exposed,
An external terminal conductor for connecting another device can be bolted to the end surface of the terminal block 105 in an arbitrary direction. In FIG. 2, external terminal conductors attached upward and downward to the end terminal block 105 are shown by reference numerals 116 and 116 ', respectively.

The intermediate terminal block 106 is cast in the intermediate part of the shutoff container 102, and the intermediate blocks of the terminal block 106 are separated from each other.
The two parts apart from each other by 0 degrees serve as external terminal mounting parts 106a and 106b, and the blocking part container 10 is arranged horizontally.
The external terminal conductors 117 and 117 ', which are exposed to the upper side surface and the lower side surface of the No. 2 and are formed in an L-shape on the two external terminal mounting portions 106a and 106b, respectively, can be bolted. As the external terminal conductors 116, 116 'and 117, 117', those having appropriate dimensions can be used according to the distance between the circuit breaker and other devices connected to the circuit breaker.

Inside the circuit breaker part container 102 and mechanism case 11
SF ₆ gas as an insulating arc-extinguishing medium is sealed in the chamber 0 at a predetermined pressure.

The circuit breaker shown in FIG. 2 is an arc rotation type gas circuit breaker, and its operation is similar to the conventional one.

The circuit breakers CB1 and CB2 are provided for three phases, and the three-phase circuit breakers CB1 and CB2 are respectively
They are arranged side by side in the width direction of the outer shell container 100 (direction perpendicular to the paper surface of FIG. 1) and attached to a common circuit breaker mounting plate 109.

A circuit breaker operating device 118 is mounted on the front surface (surface opposite to the circuit breaker) of each circuit breaker mounting plate 109, and the output shaft of the circuit breaker operating device is a drive lever 119.
Is connected to the operating shaft 111 of the circuit breaker of each phase.

In this example, the three-phase circuit breaker CB1 and the operating device 118 for operating each circuit breaker are mounted on the back side and the front side of the circuit breaker mounting plate 109 to form a first circuit breaker / operating device unit. The three-phase circuit breaker CB2 and the operating device 118 for operating each circuit breaker are mounted on the back side and the front side of another circuit breaker mounting plate 109, and the second circuit breaker and operating device unit are provided. It is configured.

The circuit breakers CB1 and CB2 are arranged with the axes of the respective circuit breaker containers oriented horizontally.
The circuit breaker mounting plate 109, which is inserted into the device storage chamber 100b through the windows 101a and 101b of the device mounting plate 101 and holds the circuit breakers CB1 and CB2, is arranged so as to close the window parts 101a and 101b, respectively. The periphery of the circuit breaker mounting plate is hermetically connected to the periphery of the window.

Below the three-phase circuit breaker CB1 and above the three-phase circuit breaker CB2, there are three-phase disconnectors DS1 and D, respectively.
S2 is located. Each disconnector comprises a base plate 120 which supports a fixed contact and a movable contact via an insulating support 121, and the disconnectors DS1 and DS2 are fixed to the rear surface of the device mounting plate 101. Disconnectors DS1 and DS on the front of the device mounting plate 101
Operation devices 122 for operating the respective disconnecting switches are attached to the positions corresponding to 2, and the output shafts of these operation devices 122 penetrate the device mounting plate 101 in an airtight manner and inside the device storage chamber 100b. It is connected to the operating portion of the movable contacts of the disconnectors DS1 and DS2 by the introduced connecting member (not shown).

In the equipment storage chamber 100a on the front side, operating devices 122 and 1 for operating the disconnecting switches DS1 and DS2, respectively.
The two-phase connectors C for connecting the cables are arranged side by side in the up-down direction in a state of being positioned between the two. The three-phase connector C is fixed to the device mounting plate 101, the respective terminal conductors 125 are introduced into the device storage chamber 100b, and the terminals on the fixed contact side of the disconnector DS1 of each phase and the fixed contact side of the disconnector DS2. Are connected to the terminal conductor 125 of the connector C of the corresponding phase via the bus conductors 126 and 127, respectively.

The circuit breaker CB1 of each phase arranged above
The external terminal conductor 117 'mounted on the external terminal mounting portion 106b on the lower side of the intermediate terminal block of is connected to the terminal on the movable contact side of the disconnector DS1 of the corresponding phase, and the circuit breaker of each phase arranged below External terminal conductor 1 attached to the external terminal attachment portion 106a on the upper side of the intermediate terminal block of CB2
Reference numeral 17 is connected to the terminal on the movable contact side of the corresponding phase disconnector DS2.

In the illustrated example, the circuit breaker C arranged above
External terminal conductor 116 protruding downward to the terminal block of B1
′ Is attached, and an external terminal conductor 116 protruding upward is attached to the end terminal block of the circuit breaker CB2 arranged below. These external terminal conductors 116 'and 1
Reference numeral 16 is connected via a conductor (not shown) to a cable head (not shown) for drawing in the lines L1 and L2, respectively.

Device storage chamber 1 on the rear side in the outer shell container 100
00b is airtightly configured, and the equipment storage chamber 100b
SF ₆ gas is sealed therein at a predetermined pressure.

As described above, the breaker container 102 of the circuit breaker.
By arranging with the axis line of the outer shell oriented in the horizontal direction, the space occupied by each circuit breaker in the vertical direction in the outer shell container 100 becomes smaller, so that the height dimension of the outer shell container 100 can be made smaller.

Further, when the shut-off container of the circuit breaker is arranged with its axis oriented horizontally as described above, the outer shell container 10
Even if the height of 0 is not increased, the circuit breakers for a plurality of lines can be arranged side by side in the vertical direction, so that a switchgear for a plurality of lines can be configured without increasing the occupied floor area. You can In the above example, the outer shell container 100 having substantially the same height as the outer shell container 1 used in the conventional switchgear shown in FIG.
1 and CB2 are arranged side by side in the vertical direction.

When only one circuit breaker is housed in the outer shell container 100, the height dimension of the outer shell container 100 can be made much smaller than in the conventional case.

Further, as described above, if the external terminal conductors can be drawn out from the end terminal block and the intermediate terminal block of the circuit breaker in any of the upper and lower directions, various electrical system connections can be made. Therefore, when it is necessary to change the arrangement of the equipment in the outer shell container, it is possible to easily meet the demand and facilitate the design of the cubicle storage type opening / closing device.

When the circuit breaker CB having the structure shown in FIG. 2 is used to carry out the present invention, the end of the circuit breaker CB is selected depending on the positional relationship between the circuit breaker and the equipment connected to the circuit breaker. At least one of the external terminal conductors 116 and 116 ′ is attached to the partial terminal block 105, and at least one of the external terminal conductors 117 and 117 ′ is attached to the intermediate terminal block 106.

For example, as shown in the single wire connection diagram of FIG. 3 (A), when the busbar conductors 201 and 202 are connected to both ends of the circuit breaker CB in the outer shell container 100, the connection form of the external terminal conductors is as follows. 4 as shown in FIGS.
It can take the form of a street.

As shown in FIG. 4 (A), the circuit breaker C
A bus bar 201 is connected to one end of B and two bus bars 20 are connected to the other end.
When connecting 2 and 203, four types of connection forms as shown in FIGS. 4B to 4E can be adopted.

Further, as shown in FIG. 5 (A), two busbars 201 and 202 are connected to one end of the circuit breaker CB and two busbars 201 and 202 are connected to the other end.
In case of connecting two busbars 203 and 204, as shown in FIG.
As shown in (B), two external terminal conductors 116 and 116 'may be attached to the end terminal block, and two external terminal conductors 117 and 117' may be attached to the intermediate terminal block.

In carrying out the present invention, when it is difficult to support all the devices on one device mounting plate, another device mounting plate may be provided in the outer shell container or the side wall of the outer shell container. Can also be used as a device mounting plate.

For example, as shown in FIG. 6A, a disconnector DS1 having one end connected to the bus 201 and a disconnector DS1.
Circuit breaker CB1 with one end connected to the other end of
Disconnectors DS2 and DS3 with one end connected to the other end of 1
In the case of configuring the switchgear having the circuit breakers CB2 and CB3, one ends of which are connected to the other ends of the disconnectors DS2 and DS3, the structure shown in FIG. 6B can be adopted.

Also in the example shown in FIG. 6B, the outer shell container 100 has a vertically long cubicle shape, and a door 100A is attached to the front surface of the container 100 so that the container 1
A device mounting plate 101 is fixed inside 00. The device mounting plate 101 is provided with its plate surface along the vertical direction, and the device mounting plate 101 allows the inside of the outer shell container 100 to be a device storage chamber 100a on the front side and a device storage chamber 100b on the back side. It is divided into

The equipment mounting plate 101 has a circuit breaker CB1.
.About.CB3 are respectively provided with three rectangular window portions 101a to 101c. Of these windows, the window portion 101a is provided at a substantially central portion in the vertical direction of the equipment mounting plate 101, and the circuit breaker mounting plate 109 holding the circuit breaker CB1 is mounted so as to close the window portion 101a. ing. Further, window portions 101b and 101c are provided above and below the window portion 101a, respectively.
Circuit breaker CB so as to close 01b and 101c respectively
A circuit breaker mounting plate 109 holding 2 and a circuit breaker mounting plate 109 holding circuit breaker CB3 are mounted.
On the back side of the equipment mounting plate 101, a disconnector DS2 is mounted between the circuit breakers CB2 and CB1 and is mounted between the circuit breakers CB1 and CB3.
S3 is attached. Further, the disconnector DS1 is attached to a position corresponding to the disconnector DS2 on the inner surface of the back plate 100B of the outer shell container 100. Disconnectors DS2 and DS
The manipulator 122 of 3 is attached to the front surface of the equipment mounting plate 101, and the manipulator 122 of the disconnector DS1 is the outer shell container 100.
Is attached to the outer surface of the back plate 100B.

Then, the external terminal conductor 116 mounted upward on the end terminal block of the circuit breaker CB1 is connected to the disconnector DS1.
External terminal conductors 117 and 117 ', which are connected to the terminals on the movable contact side of the circuit breaker CB1 and are attached to the upper and lower external terminal mounting portions of the intermediate terminal block of the circuit breaker CB1 on the fixed contact side of the disconnectors DS2 and DS3, respectively. It is connected to the terminal. In addition, the external terminal conductor 117 attached to the external terminal attachment portion below the intermediate terminal block of the circuit breaker CB2.
′ Is connected to the terminal on the movable contact side of the disconnector DS2, and the external terminal conductor 117 attached to the upper external terminal mounting portion of the intermediate terminal block of the circuit breaker CB3 is connected to the disconnector DS3.
Is connected to the movable contact side terminal. Circuit breaker C
B1 ～CB3 and disconnector DS1 ～DS3 is equipment housing chamber 100b accommodating back-side side be configured airtight, SF ₆ gas is sealed at a predetermined pressure to the instrument housing chamber 100b.

[0063] In the above description, although the encapsulating SF ₆ gas circuit breakers and disconnecting switch and the storage equipment housing chamber 100b, without encapsulating the SF ₆ gas in the instrument housing chamber,
It is needless to say that the present invention can be applied to the case of adopting the air insulation.

In the above example, the circuit breakers for two lines are housed in the outer shell container, but in the present invention, the number of circuit breakers housed in the outer shell container is arbitrary. For example, as shown in FIG. Like the conventional example, the present invention can be applied to the case where the circuit breaker for one line is housed in the outer shell container together with other devices. When only one circuit breaker is accommodated in the outer shell container, the height of the outer shell container can be made significantly smaller than in the conventional case, and the switchgear can be made compact.

In the above example, an arc rotation type circuit breaker was used as the gas circuit breaker, but the gas circuit breaker usable in the present invention is not limited to this, and the movable contact is a fixed contact. A puffer-type gas circuit breaker that reduces the volume in the puffer cylinder when leaving it, and extinguishes the arc by blowing gas from the cylinder into the arc through a nozzle, or provided near the arc generation space by the thermal energy of the arc A self-expanding gas circuit breaker that extinguishes arc by increasing the pressure in the gas chamber and blowing gas from the gas chamber to the arc through a nozzle, and a gas circuit breaker that appropriately combines these arc extinguishing methods. Various types of gas circuit breakers can be adopted.

In the above example, the equipment mounting plate is provided with the window portion, and the circuit breaker mounting plate holding the circuit breaker is attached so as to hermetically close the window portion. Although it is kept, it is not always necessary to adopt such a mounting structure when adopting the air insulation. For example, a plurality of device mounting plates are arranged in the outer shell container at intervals in the vertical direction, and a circuit breaker mounting plate holding a circuit breaker is arranged across adjacent device mounting plates. It is possible to adopt a structure in which the upper end and the lower end are fixed to the device mounting plate by bolts.

In the above example, the circuit breaker, the disconnector, and the connector are housed in the outer shell container, but the devices housed in the outer shell container are not limited to these, and may be arranged as necessary. Other devices such as a grounding switch can be housed in the outer shell container.

[0068]

As described above, according to the present invention, since the circuit breaker container of the circuit breaker is arranged with the axis lined horizontally, the space occupied by each circuit breaker vertically in the outer shell container. Can be made smaller, and the height dimension of the outer shell container can be made smaller.

Further, according to the present invention, the circuit breaker of the circuit breaker is arranged with the axis lined in the horizontal direction, and the circuit breakers for a plurality of lines can be cut off without increasing the height of the outer shell container. Since the devices can be arranged side by side in the vertical direction, there is an advantage that a switchgear for a plurality of lines can be configured without increasing the occupied floor area.

Further, according to the present invention, since the external terminals can be drawn out from the end terminal block and the intermediate terminal block of the circuit breaker in any of the upper and lower directions, the arrangement of the equipment in the outer shell container can be improved. When it is necessary to change, there is an advantage that the request can be easily met and the design of the cubicle storage type opening / closing device can be facilitated.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view showing an embodiment of the present invention. (B) is a single line connection diagram of (A).

FIG. 2A is a sectional view showing a mounting structure of a circuit breaker adopted in the present invention. (B) is a sectional view showing an example of the structure of the circuit breaker used in the present invention.

FIG. 3A is a single-line connection diagram showing an example of a circuit configuration around a circuit breaker. (B) thru | or (E) are side views which showed the various variation of the attachment method of the external terminal conductor to the circuit breaker which can be employ | adopted when constructing the circuit represented by the single wire connection figure of (A).

FIG. 4A is a single-line connection diagram showing another example of the circuit configuration around the circuit breaker. (B) thru | or (E) are side views which showed the various variation of the attachment method of the external terminal conductor to the circuit breaker which can be employ | adopted when constructing the circuit represented by the single wire connection figure of (A).

FIG. 5A is a single-line connection diagram showing still another circuit configuration around the circuit breaker. FIG. 6B is a side view showing how to attach the external terminal conductors when the circuit of FIG.

FIG. 6A is a single wire connection diagram showing another example of the circuit configuration around the circuit breaker. FIG. 3B is a cross-sectional view showing an example of the arrangement of devices and the connection between the devices when configuring the circuit of FIG.

FIG. 7A is a sectional view showing a configuration example of a cubicle storage type opening / closing device which has been conventionally used. (B) is a single line connection diagram of (A).

FIG. 8A is a sectional view showing a mounting structure for a circuit breaker. 7B is a sectional view showing the structure of the gas circuit breaker used in the switchgear of FIG. 7. FIG.

[Explanation of symbols]

 100 Outer shell container 101 Equipment mounting plate 102 Breaking part container 103 Fixed contact 104 Movable contact 105 End terminal block 106 Intermediate terminal block 109 Circuit breaker mounting plate 116,116 'External terminal conductor 117,117' External terminal conductor CB, CB1 ~ CB3 circuit breaker DS, DS1 to DS3 disconnector C connector

Claims (1)

[Claims] 1. A breaker having a fixed contact and a movable contact is housed in a breaker container made of an insulating material,
A gas circuit breaker, in which an end terminal block connected to the fixed contact and an intermediate terminal block connected to the movable contact are fixed to one end side and an intermediate part of the blocking section container in the axial direction, respectively, is connected to the circuit breaker. In a cubicle storage type opening / closing device which is housed in a cubicle type outer shell container together with other equipment, an equipment mounting plate having plate surfaces along a vertical direction is provided in the outer shell container, and the equipment mounting plate is provided. Is fixed to the outer shell container, and a circuit breaker mounting plate whose plate surface is orthogonal to the axis of the circuit breaker container is fixed to the other end side in the axial direction of the circuit breaker container of the gas circuit breaker, Is arranged with the axis of the circuit breaker container oriented horizontally, the circuit breaker mounting plate is fixed to the device mounting plate, and the end terminal block and the intermediate terminal block of the gas circuit breaker are different from each other. Connect equipment A cubicle storage type opening / closing device, characterized in that it is provided so that the external terminal conductor for carrying out can be attached either in an upward or downward direction.