JP2908068B2 - Gas-insulated power receiving equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-insulated power receiving equipment for receiving power from two systems.

[0002]

2. Description of the Related Art FIG. 11 shows a power receiving system diagram of a conventional gas insulated power receiving equipment. In FIG. 11, a special / high-voltage power receiving facility of a service / standby 2CB power receiving-secondary bank primary disconnecting device includes a disconnecting device 52 with a grounding device and a grounding disconnecting device 53 on the load side of the cable head 50 via a voltage detector 51. Are connected to each other. Of these, a current transformer 54,
A vacuum circuit breaker 55 and a disconnector 56 with a grounding device are connected in series, and the load side of the disconnector 56 is connected to each other,
These devices are housed in a power receiving panel described later.

Next, a PCT is provided on the load side of each disconnector 56.
7, two disconnectors 58 with a grounding device and a disconnector 60
Are connected in parallel. Of these, a dry type step-down transformer 62 is connected to the load side of each disconnector 58 via a current transformer 59, and a lightning arrester 61 is connected to the load side of the disconnector 60.
Is connected.

FIG. 12 is a single-line layout diagram showing a state in which the device of FIG. 11 is housed in a box of a gas-insulated power receiving facility.
In FIG. 12, a PCT panel 72 at the center of the gas-insulated power receiving equipment configured as a row board has a PCT 7 and a disconnector 60 at the bottom.
And the lightning arrester 61 are housed.
8 are stored on the left and right. Power receiving boards 71 are provided adjacent to the left and right of the PCT board 72, respectively, and the power receiving board 71 includes a cable head 50, a voltage detector 51, and a disconnector 5.
2. The grounding disconnector 53, the current transformer 54, the vacuum circuit breaker 55, and the disconnector 56 are housed and connected respectively, and the load side of the disconnector 56 and the PCT 7 are connected by cables arranged at the top of each box. They are connected as described in detail below. A transformer panel 73 is provided adjacent to the outside of each power receiving panel 71, and the primary side of the transformer 62 housed inside the transformer panel 71 includes a transformer panel 73, a power receiving panel 73, and a PCT panel. A cable disposed on the upper portion of the PCT board 72 is connected to the load side of the disconnector of the PCT board 72 as described later in detail.

Next, FIG. 13 shows a layout view of the box of the gas-insulated power receiving equipment shown in FIGS. 11 and 12, (a) is a plan view, and (b) is a front view. In FIG. 13, a double door, which will be described later, is provided on the front and rear surfaces of a central PCT panel 72, and left and right power receiving panels 71 of the PCT panel 72 are provided with single doors on the front and rear surfaces. The board 73 has a double door on the front left side and a single door on the right side, and a single door at the center of the rear face. Ducts 74A, 74B, and 74C are provided in the upper part of each of these boxes, respectively, and an exhaust port is provided in the upper part of the duct 74C. Among these ducts, a high-pressure cross-linked polyethylene cable (hereinafter, referred to as a cable) 80A is provided inside the central left and right ducts 74A and the central duct 74B.
Are arranged in the order of R, S, and T from the front, and a cable 80B is arranged in the order of R, S, and T from the front inside the duct 74B and the ducts 74C at the left and right ends, respectively.

FIG. 14 is a right side view of the power receiving board 71.
In FIG. 14, a box body of the power receiving board 71 includes a main circuit box 71a having an airtight structure provided in a central portion, and the main circuit box 71a.
Of the low-pressure box 71c, and a front-side door 8 on the front of the low-pressure box 71c.
3A, a rear door 83B is attached to the rear of the cable box 71b. A small airtight chamber 71d is provided at the upper end of the cable box 71b, and the main circuit box 71a is divided into upper, middle and lower gas sections. The main circuit box 71a and the airtight chamber 71d have sulfur hexafluoride gas ( Hereinafter, referred to as SF6 gas).

On the front wall of the main circuit box 71a, an electric operation unit of a disconnector 56 with a grounding device is mounted on the upper part of the main circuit box 71a.
The operation part of the vacuum circuit breaker 55 is mounted hermetically below the disconnector 56 by protruding the valve side into the main circuit box 71a. A disconnector 5 with a grounding device is provided below the vacuum circuit breaker 55.
2 protrudes the blade to the lower part of the main circuit box 71a, and is similarly airtightly mounted. The details indicated by a dashed line are provided between the upper and lower disconnectors 56, 52 and the drive unit provided on the upper part of the vacuum circuit breaker 55. The omitted drive rods are provided at the left and right ends of the box.

On the other hand, a T-shaped bushing 4A (not shown) is penetrated through the ceiling plate of the main circuit box 71a. The lower end of the T-shaped bushing 4A is connected to the upper pole of the disconnector 56 by a conductor 84A. The lower pole of the disconnector 56 is connected to an upper terminal of a spacer 86B penetrating the lower horizontal partition,
The lower terminal of the spacer 86B is connected to the upper pole of the vacuum circuit breaker 55 by a conductor.

The lower pole of the vacuum circuit breaker 55 is
1a is connected to the upper terminal of a current transformer 87 which is provided at the center of the rear wall of the current transformer 87. The lower terminal of the current transformer 87 is connected to the upper terminal of a spacer 86A which is provided at a horizontal partition wall therebelow. The lower terminal of the spacer 86A is connected to the disconnector 52.
Is connected to the upper pole. The lower pole of the disconnector 52 is connected to the main circuit box 71 via a conductor 84B supported by an insulator 85.
a is connected to the front end of a T-shaped bushing 4A penetrating below the rear wall.

A T-shaped bushing 4A is provided through the front wall of the airtight chamber 71d, and a power application terminal 51a for withstand voltage test is attached to the rear wall of the airtight chamber 71d. An I-shaped cable head 50 is vertically and airtightly penetrated below the head, and a voltage detector 51 is mounted between the I-shaped cable head 50 and the T-shaped bushing 4A on the front wall. These voltage detector 51 and power supply terminal 5
1a, the upper end of the I-shaped cable head 50 and the rear end of the T-shaped bushing 4A are connected by a conductor, and the upper and lower T-shaped bushings 4A are connected by a cable 82.

FIG. 15 is a right side view of the PCT board 72. As shown in FIG. In FIG. 15, the double door 92A described above is attached to the front surface of the box 91, the double door 92B is also attached to the rear surface of the box 91, and an airtight chamber 91b is provided at the lower surface of the ceiling. Being, the PC under it
A duct 74B1 is placed at the center and a duct 74B2 is placed at the rear on the upper surface of the ceiling.

Among these ducts, T-shaped bushings 4A and 4B are provided in the ducts 74B1 and 74B2 in an airtight manner through the ceiling plate of the airtight chamber 91b, and the T-shaped bushing 4A and the duct 74A of the power receiving panel 71 shown in FIG. Is connected by a cable 80A as shown in FIG. A bushing 22 is vertically and airtightly provided at the front of the lower surface of the airtight chamber 91b, and a disconnector 58 is provided at the rear of the bushing 22 by projecting an operation unit into the PCT chamber 91a. , The current transformer 59 is housed with the terminal side and the blade forward. Among them, the lower terminal of the T-shaped bushing 4A of the duct 74B1 and the upper terminal of the bushing 22 are connected by a conductor 93A, and the upper terminal of the bushing 22 and the upper pole of the disconnector 58 are conductors supported in the middle by insulators 85. 93B, and the lower pole of the disconnector 58 is connected to the T
The upper terminal of the T-shaped bushing 4B is connected to a lower terminal of a T-shaped bushing (not shown) in the duct 74C of the transformer panel 73 by a cable 80B as shown in FIG. After being connected to the upper terminal, it is connected to a primary side terminal (not shown) of the transformer 62. Now, in the gas-insulated power receiving equipment configured as described above, the front door and the rear door are opened so that maintenance can be performed from both the front and rear sides.

[0013]

However, in the gas-insulated power receiving equipment configured as described above, since the cables in the duct are arranged at two places in front and behind, the depth of the box increases, and The order of the fields is restricted. Furthermore,
At the front side of the wall of the power receiving board 71 where the vacuum circuit breaker 55 and the disconnectors 52 and 56 are mounted, mounting spaces 88A and 8 for mounting control devices shown in FIG.
8B is required, but as described above, since the protruding dimensions of the operation mechanism portions of the vacuum circuit breaker 55 and the disconnecting switches 52 and 56 are different, the mounting spaces 88A and 88B for the control articles are separated from the front door 83.
A is divided into the upper part and the lower part of A, and when designing for mounting the control supplies, it is necessary to determine the arrangement and write the drawings each time, so that it takes time both in the design and in the on-site assembly work.

The vacuum circuit breaker 55 and the disconnectors 52 and 56
Since the depth dimensions of the main circuit section are different, the depth dimension of the box body is determined by the portion where the total of the main circuit section dimensions is long.
The depth dimension becomes longer like the airtight chamber 91b of the T board 72.
Further, since the method of connecting the main circuit portion and the other box-side components is different, the types and number of connecting conductors and support components increase, and it takes time to manufacture and assemble the support components.

Next, a vacuum circuit breaker 55, disconnectors 52, 56
Circuit box 71a in which is stored and I-shaped cable head 50
Are housed in individual gas chambers, so that T-shaped bushings 4A, 4A,
4B, a vertical gable busbar 82 is required, and the number of gas seals at the portion to which the busbar 82 is attached increases, and the risk of gas leakage increases accordingly. In addition, these T-shaped bushings 4A, 4
As the depth dimension for mounting B increases, the assembling operation time increases.

Further, since the I-type cable head 50 has no power application terminal, one power application bushing 51a is required for each phase, it takes time to mount the bushing 51a, and it takes a long time to mount it. The cost is reduced and the number of parts increases, which is uneconomical.

Accordingly, an object of the present invention is to provide a gas-insulated power receiving equipment capable of reducing an installation floor area, being easy to manufacture, easily adapting to various specifications, and improving the reliability of a gas seal. It is to get.

[0018]

The first aspect of the present invention provides
PCT for accommodating the first incoming panel and instrument transformer current transformer inside of the second incoming panel for accommodating the connected circuit breaker Ru to a second system for accommodating a circuit breaker that will be connected to the first system And a transformer panel for accommodating a transformer outside of the first and second power receiving panels, and a transformer panel adjacent to the first and second power receiving panels and the PCT panel.
The first group of cable <br/> Bull connecting the circuit breaker and instrument voltage transformer current transformer on the side are arranged, first, second incoming panel and PCT Edition, meter on the side of the transformer board second connecting the transformer and the transformer current transformer
In gas-insulated power receiving equipment in which group cables are
By arranging the cables of the first group and the cables of the second group alternately, the depth of the box is reduced, the installation floor area is reduced, the manufacturing is easy, the reliability of the gas seal is increased, and various specifications are available. It is a gas-insulated power receiving facility that can be easily handled.

Further, the second invention, a second incoming panel for accommodating the first incoming panel and breakers that will be connected to a second system for accommodating a circuit breaker that will be connected to the first system, Transformer transformer for instrument
Provided adjacent the transformer board is for accommodating the PCT Edition a transformer for accommodating a flow device, first, second incoming panel and PCT board, circuit breaker and instrument voltage transformer in <br/> upper side of the transformer board The first group of cables for connecting current transformers
Of the second group that connects the cable and the
In the gas insulated power receiving equipment the cable is disposed, the
1, a second power receiving board is installed next to the power receiving board, and P
A CT panel is installed next to the transformer panel on the other side of the PCT.
By alternately arranging the cables of the first group and the cables of the second group, the depth of the box body is reduced, the installation floor area is reduced, the manufacturing is easy, and the reliability of the gas seal is improved. This is a gas-insulated power receiving facility that can easily handle various specifications.

[0020] Furthermore, the third invention, the circuit breaker and the disconnector of
The depth of the operation unit is the same, and the circuit breaker and disconnector main circuit
By making the depth the same, the depth of the box is reduced to reduce the installation floor area, the manufacturing is easy, the reliability of the gas seal is increased, and the gas insulated power receiving equipment can easily correspond to various specifications.

[0021] Further, the fourth invention, the incoming panel of the circuit breaker
The main circuit room that houses the disconnector and the cable
By next set Bull chamber in the width direction, and shallow depth of the box reduces floor space, increasing the reliability of the gas seal, which is readily gas-insulated power receiving equipment that can meet various specifications.

[0022]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a layout view of a gas-insulated power receiving equipment of the present invention corresponding to FIG. 13 of the related art, where (a) is a plan view and (b)
Is a front view.

In FIG. 1, a power receiving board 1 adjacent to the left and right sides of the PCT board 2 is provided at the center of the upper surface of the center PCT board 2.
And a T-shaped bushing 4A to which a cable 12A to be connected as described later is connected is attached from the front in the order of R, S, T as described later, and these three R, S, T
Between the T-shaped bushings 4A of the phase, T-shaped bushings 4B are attached to the left and right, and the T-shaped bushings 4B are connected to a T-shaped bushing 4B provided on the upper surface of the transformer board 3 arranged at the right end and a cable 12B. It is connected.

FIG. 2 is a right side view of the power receiving board 1. FIG.
In the front wall 11f of the main circuit box 11a, a disconnector 6B with a grounding device is provided at the upper part, a vacuum circuit breaker 5 is provided at the center, and a disconnector 6A having a grounding device is provided at the lower part.
The lightning arrester 9 is further hermetically attached below the disconnecting switch 6A. And among these, disconnectors 6A and 6B
And the height of the drive unit of the vacuum circuit breaker 5 from the mounting surface to the front wall 11f is designed and manufactured to have substantially the same dimensions as described later. As a result, the control indicated by the one-dot chain line on the back of the front door 11d. The article mounting space 11h has the same depth dimension over the upper and lower ends.

At the upper part of the main circuit box 11a, a substantially Z-shaped partition wall 11j for partitioning between the disconnector 6B and the rear part of the vacuum circuit breaker 5 is provided between the front wall 11f and the rear wall 11g of the main circuit box 11a. A spacer 17 is vertically penetrated vertically below the partition 11j. On the ceiling of the main circuit box 11a, three T-shaped bushings 4A shown in FIG. 1 are attached to the same mounting base in front and back, and behind each of the T-shaped bushings 4A, three T-shaped bushings 4A shown in FIG. The cables 12B respectively penetrate. The lower terminal of the T-shaped bushing 4A is connected to the upper terminal of the disconnector 6B by a conductor 15A supported by the insulator 16, and the lower terminal of the disconnector 6B is connected to the upper terminal of the spacer 17. The lower terminal of 17 is connected to the upper pole of the vacuum circuit breaker 5.

The lower pole of the vacuum circuit breaker 5 is
The lower terminal of the disconnector 6A is connected to the upper terminal of the disconnector 6A by the conductor 15C supported by the insulator 16 and to the lower part of the lightning arrester 9 and the upper part of the rear wall 11g by the conductor 15C supported by the insulator 16. It is connected to a terminal on the front side of the cable head 10. At the lower part of the T-shaped cable head 10, the cable 1 rising from the installation floor of the power receiving panel 1 is provided.
The current transformer 8A, the zero-phase current transformer 8B, and the cable support 14 are attached to an intermediate portion of the cable chamber 11b where the cable 13 rises.

In the power receiving panel 1 configured as described above, even if relays, control supplies, and the like mounted on the back of the front door 11d differ depending on the specifications of the power receiving equipment, the mounting space formed on the entire back of the door 11d. Since there is no restriction on the arrangement, it is possible to easily cope with the problem. Also, the cable 13
Is directly connected to the T-shaped cable head 10, so that the depth of the cable chamber 11b can be reduced,
The depth of the box can be reduced. Further, since the gas seal between the cable chamber 11b and the main circuit chamber 11a is only required at the mounting portion of the T-shaped cable head 10, the conventional gas seal shown in FIG.
In FIG. 14, the gas seal portion shown in FIG. 14 requires a total of four locations including the upper and lower T-shaped bushings 4A, the intermediate current transformer 87, and the I-shaped cable head 50 at the rear end. Can be reduced. Also,
The gas sealing section is also only the central main circuit chamber 11a, and there is no conventional airtight chamber 71d.

FIG. 3 is a right side view of the PCT board 2.
FIG. 16 is a view corresponding to FIG. 15 of the related art. In FIG. 3, T-shaped bushings 4B are respectively provided in the ceiling of the main circuit room 21a at the center of the box body 21 in the central portion and in the front-rear direction in the left and right directions. Is connected to the upper terminal of the current transformer 8 attached to the rear partition 21g by the conductor 22A, and the lower terminal of the current transformer 8C is connected to the upper part of the front wall 21f of the main circuit chamber 21a by the conductor 22B. It is connected to the upper terminal of the disconnector 6C with the attached grounding device.

The lower terminal of the disconnector 6C is connected to a conductor 22C supported by an insulator 16 attached to an upper part of a partition 21j below the disconnector 6C.
Are vertical conductors (not shown) having lower ends connected to both ends of the conductor 22C in a direction perpendicular to the plane of the paper and connected to the lower terminals of a total of six T-shaped bushings 4B penetrating right and left of the ceiling. Have been. On the other hand, a bushing 22 penetrates behind the insulator 16 in the partition 21j, an upper terminal of the bushing 22 is connected to each conductor 22C, and a lower terminal of the bushing 22 is connected to the PCT 7 therebelow. A lightning arrester 10 is provided at the front end of the section.

In the PCT board 2 configured as described above, the disconnector 6C is provided above the front wall 21f, and is provided at the center of the ceiling surface so as to extend forward and backward, and each T-shaped bushing for connecting to the power receiving board 1 is provided. By penetrating T-shaped bushings 4B for connecting to the transformer panel 3 at the left and right rear portions of 4A, it is possible to reduce the depth dimension of the box 21 and reduce it to the same dimension as the depth of the power receiving panel 1 described above. Can be.

Next, FIG. 4 shows an enlarged detailed view of the above-described vacuum circuit breaker 5, (a) is a front view, (b) is a right side view, and FIG. 5 is an enlarged view of the disconnectors 6A and 6B. (A)
Is a front view, and (b) is a right side view. 4 and 5, the depth D1 and the width W1 of the operation mechanism 5a of the vacuum circuit breaker 5 are shown.
Are substantially the same as the depth D3 and the width W2 of the operation mechanism 6a of the disconnectors 6A and 6B. Similarly, vacuum circuit breaker 5
The depth D2 of the main circuit portion 5b and the dimension D4 of the main circuit portion 6b of the disconnectors 6A and 6B are substantially the same. Furthermore, a contact 5c for connecting a conductor at the rear end of the vacuum circuit breaker 5 and a disconnector 6
The contacts 6c at the rear of A and 6B use exactly the same contacts.

As described above, the vacuum circuit breaker 5 and the disconnectors 5A, 5
By configuring B, a mounting space 11h for mounting control supplies having the same dimensions up to the door 11d shown in FIG. 2 as described above on the front surfaces of the operation mechanism 5a of the vacuum circuit breaker 5 and the operation mechanism 6a of the disconnector 6 as described above. Can be provided over the entire rear surface of the front door 13. Similarly, the protruding lengths of the high-voltage portions protruding into the main circuit chamber 11a can be made the same, and the occupation efficiency of devices inside the main circuit chamber 11a can be increased,
The bending height of the connection conductor can be made the same, the shape can be simplified and shared, and a power receiving panel can be easily manufactured and assembled. Similarly, the insulation distance between the devices and between the ground can be made uniform, and the insulation can be coordinated between the devices.

Meanwhile, in the gas insulated power receiving equipment configured as described above, as shown in FIG. 6, the back door 11e of the power receiving panel 1 is opened, and a withstand voltage test after installation can be performed. In FIG. 6, first, the T-shaped cable head 10
The blind plug at the rear end is removed and a power cable 19 is connected instead. The power cable 19 is supported by the box 11 and the fixed cable support 18. Power cable 19
Is treated as an aerial end portion 19a so that a predetermined withstand voltage value can be satisfied. This is fixed to the gantry 20 and connected to a separate voltage application test device (not shown) to perform a withstand voltage test on site. The connecting portion of the T-type cable head 10 to the power application cable 19 has the same connection structure as the T-type bushing 4A and the like, so that it can be used as a branch of the main circuit cable (for example, a connecting portion at the time of additional equipment). Can be used.

As described above, in the gas-insulated power receiving equipment of the present invention, two sets of three-phase box-to-box connecting cable buses are alternately arranged in each phase by the rational arrangement of the storage devices of the power receiving panel 1 and the PCT panel 2. And the depth of the box can be reduced.

On the other hand, in the gas-insulated power receiving equipment of the front and rear maintenance type configured as described above, a part of the power receiving panel is changed as shown in FIGS. 7, 8 and 9 depending on the conditions of the building to be installed. Thus, the front-maintenance type gas-insulated power receiving equipment of the third invention in which the back surface is adjacent to the wall surface of the building can be provided.
7 is a right side view of the front maintenance type power receiving panel 41, corresponding to FIG. 2, FIG. 8 is a sectional view taken along the line AA of FIG. 7, and FIG. 9 is a sectional view taken along the line BB of FIG. is there.

7, 8 and 9, a box 42A having the same outer shape as the box 11 of the front and rear maintenance type power receiving panel 1 shown in FIG. 2 is a main circuit forming the latter half of the box 42A. Box 4
2a and a low-voltage box 42c which is connected to the front surface of the main circuit box 42a and which is the same as the low-voltage box 11c in FIG. 1. The left side of the main circuit box 42a and the low-voltage box 42c are shown in FIGS. as shown in 9, is connected a cable box 42B is substantially box 42A and outer equal, the intermediate portion of the cable box 42B, the partition 42f ₂ is provided for partitioning the cable box 42B back and forth.

Of these, a partition 42j is provided above the main circuit box 42a to partition the disconnector 6B and the vacuum circuit breaker 5 horizontally. The spacer 17 penetrates the partition 42j as in FIG. The horizontal bus 45A is disposed on the front of the insulator 16 disposed above and below the lower part of the main circuit box 42a.
Each horizontal bus 45A is connected to the lower terminal of the disconnector 6A in front of it and to the lightning arrester 9 below it, and the rest is the same as FIG.

On the other hand, the upper end of the partition 42f ₂ of the intermediate portion of the cable box 42B, the T-shaped cable head 10 is arranged laterally as shown in Figure 8, the T-shaped cable head 10
A cable 13 rising from the floor surface is connected to a lower part of the cable, and an upper part of the cable 13 passes through the current transformer 8A,
The lower part of the cable 13 passes through the zero-phase current transformer 8B.
The upper end of a conductor 45B supported by the insulator 16 is connected to the rear terminal of the T-shaped cable head 10, and the other end of the conductor 45B is connected to the above-mentioned horizontal bus 45A at the lower rear.

Next, FIG. 10 shows a layout view of the gas insulated power receiving equipment of the fourth invention, and shows the arrangement of the row boards from power receiving boards 1 from the left.
Installed with PCT panels 2,2 and transformer panels 3,3,
And PCT board 2 are connected by T-shaped bushing 4A and cable 12A, and PCT board 2 and transformer board 3 are connected by T-shaped bushing 4B.
And an insulated gas power receiving equipment with different specifications by connecting with a cable 12B.

[0040]

As described above, according to the first aspect , the first system
Power receiving board and second system accommodating a circuit breaker connected to
Inside the second power panel that houses the circuit breaker connected to the
A PCT panel for accommodating an instrument transformer is provided next to
A transformer board is provided adjacent to the outside of the second power receiving board, and the first and second transformer boards are provided.
A first group of cable is arranged to connect the upper breaker and instrument voltage transformer current transformer side <br/> of incoming panel and PCT board, first, second incoming panel and PCT board, transformer in panel above side instrument transformer current transformer <br/> a second group of cables disposed gas insulated power receiving facility for connecting a transformer, a first group of cable second group of Ke <br Since the cables are alternately arranged, it is possible to obtain a gas-insulated power receiving equipment that can reduce the installation floor area, is easy to manufacture, increases the reliability of the gas seal, and can easily correspond to various specifications.

Further, according to the second invention, a second incoming panel for accommodating the first incoming panel and breakers that will be connected to a second system for accommodating a circuit breaker that will be connected to the first system And instrument variables
PCT panel for accommodating pressure transformers and transformer for accommodating transformers
Panels are installed next to each other, the first and second power receiving panels, PCT panels, and transformers
Of the first group that connects the circuit breaker and the
The second group that connects the cable, the transformer for the instrument, and the transformer
In the cable is arranged gas-insulated power receiving equipment, the
1, a second power receiving board is installed next to the power receiving board, and P
Next to the CT panel, and the transformer panel on the other side of this PCT panel
The first group of cables and the second group of cables are arranged alternately, so the installation floor area is reduced, manufacturing is easy, the reliability of gas seals is increased, and various specifications can be easily handled. It is possible to obtain a gas-insulated power receiving equipment that can be used.

[0042] Furthermore, according to the third aspect, the circuit breaker and disconnection
The depth of the operation unit of the disconnector is the same, and the main circuit of the circuit breaker and disconnector
Since the depth of the road is the same, a gas-insulated switchgear that can reduce the installation floor area, is easy to manufacture, increases the reliability of the gas seal, and can easily meet various specifications can be obtained.

[0043] Furthermore, according to the fourth aspect, shielding the incoming panel
The main circuit room and the cables that house the disconnector and disconnector
Having next set cable chamber in the width direction that reduces the floor space, easy manufacture, increasing the reliability of the gas seal, it is possible to obtain a gas-insulated power receiving equipment which can easily cope with various specifications .

[Brief description of the drawings]

FIG. 1 is a layout view showing an embodiment of a gas-insulated power receiving facility according to the first and second inventions, wherein (a) is a plan view and (b) is a front view.

FIG. 2 is a right side view showing a power receiving panel constituting the gas-insulated power receiving equipment of the first, second, and fourth inventions.

FIG. 3 is a right side view showing a PCT board constituting the gas-insulated power receiving equipment of the first, second, third and fourth inventions.

FIG. 4 is an external view of a vacuum circuit breaker housed in a power receiving panel constituting the gas-insulated power receiving equipment of the first, second, third, and fourth inventions, (a) is a front view, and (b) is a front view. Right side view.

FIG. 5 is an external view of a disconnector housed in a power receiving panel constituting the gas-insulated power receiving equipment of the first, second, third, and fourth inventions;
(A) is a front view, (b) is a right side view.

FIG. 6 is a right side view showing the operation of the gas-insulated power receiving equipment of the first, second, and fourth inventions.

FIG. 7 is a right side view showing a power receiving panel of one embodiment of the gas-insulated power receiving equipment of the third invention.

FIG. 8 is a sectional view taken along line AA of FIG. 7;

FIG. 9 is a sectional view taken along line BB of FIG. 8;

FIG. 10 is a layout view showing another embodiment of the gas-insulated power receiving equipment of the fourth invention.

FIG. 11 is a single-line diagram showing a power receiving system of a conventional gas-insulated power receiving facility.

FIG. 12 is a single-line layout diagram of a conventional gas-insulated power receiving facility.

FIG. 13 is a layout view of a conventional gas-insulated power receiving equipment, in which (a)
Is a plan view, and (b) is a front view.

FIG. 14 is a right side view of a power receiving panel constituting the conventional gas-insulated power receiving equipment.

FIG. 15 is a right side view of a PCT panel constituting the conventional gas insulated power receiving equipment.

[Explanation of symbols]

1: Power receiving board, 2: PCT board, 3: Transformer board, 4A, 4B
... T-type bushing, 5 ... Vacuum breaker, 6A, 6B, 6C
... disconnector, 7 ... PCT, 8A, 8C, 52, 56, 59
... current transformer, 8B ... zero-phase current transformer, 9 ... lightning arrester, 10 ... T-shaped cable head, 11, 21, 41A, 42A, 42B
... box, 12A, 12B, 13 ... cable.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryoichi Kodama 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. (72) Inventor Tomi 1 Toshiba-cho, Fuchu-shi, Tokyo Toshiba Fuchu Plant, Inc. (72) Inventor Masaki Ikuta 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. (72) Inventor Junichi Ikeda 1-Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba (72) Inventor Kazuhito Horikiri 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation (72) Katsumi Goto 1-1-1, Shibaura, Minato-ku, Tokyo Inside the head office of Toshiba Corporation (72) Inventor Yasufumi Nagata 1-1-1, Shibaura, Minato-ku, Tokyo In the head office of Toshiba Corporation (72) Inventor Kiyoshi Kawamata 1-1-1, Shibaura, Minato-ku, Tokyo Toshiba Corporation In the head office (56) References JP-A-3-70406 (JP, A) JP-A 63-198316 (JP, U) JP-A 63-74005 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02B 1/30 H02B 7/00

Claims (4)

(57) [Claims] 1. A to receiving a first circuit breaker that will be connected to the grid
That houses the first incoming panel and circuit breaker connected to Ru in the second system
A PCT board for accommodating a voltage transformer for an instrument is provided adjacent to the inside of the second power receiving panel, and outside the first and second power receiving boards.
A transformer panel accommodating a transformer is provided adjacent to the first and second transformer panels.
The instrument incoming panel and the circuit breaker on the side of the PCT Release of
A first group of cables connecting the transformers for
On the first and second power receiving panels, the PCT panel, and the transformer panel
The connecting said transformer and said voltage transformer current transformer on the side 2
In gas-insulated power receiving equipment in which group cables are
A gas-insulated power receiving facility, wherein the first group of cables and the second group of cables are arranged alternately. Wherein the first incoming panel Ru <br/> to house the first circuit breaker that will be connected to the grid, a circuit breaker that is connected to the second system yield
And the second of the incoming panel to be paid, P for accommodating the instrument transformer current transformer
A CT board and a transformer board for accommodating a transformer are provided adjacent to each other, and the first and second power receiving boards , the PCT board, and the upper side of the transformer board,
A first group of connecting the circuit breaker and the instrument transformer
Connect the cable, the instrument transformer and the transformer
In the gas-insulated power receiving equipment in which the second group of cables to be installed is disposed , the first and second power receiving panels are disposed adjacent to each other, and
The PCT panel is placed next to one side of the switchboard,
Side of the transformer panel, and the first group of cables and
Gas insulated power receiving equipment, wherein two groups of cables are alternately arranged . 3. Depth of operation parts of the circuit breaker and the disconnector
And the depth of the main circuit of the circuit breaker and the disconnector
To claim 1 or claim 2, characterized in that the the same
The described gas-insulated power receiving equipment. 4. The power receiving board houses a circuit breaker and a disconnecting switch.
Main circuit room and cable room where cable rises in the width direction
4. The method according to claim 1, wherein the light emitting device is provided adjacent to the light emitting device.
Gas insulated power receiving equipment as described in Crab.