JPH08196007A - Gas insulated substation facility - Google Patents

Abstract

PURPOSE: To reduce the installing area of a substation facility which receives power from a different system and supplies power to a load through a transformer. CONSTITUTION: A transformer (PT) for an instrument is contained in a bus chamber of the lower end of a power receiving board 1B for receiving power of one side, a current transformer(CT) for an instrument is contained in the bus chamber of the lower end of the transformer primary board 2A, and a ground transformer (GPT) is contained in the bus chamber of the lower end of the transformer primary board 2B. The board 1B is provided at the adjacent board 2A, a power receiving board 1A for receiving the power from the other side power source is provided adjacent to the outside of the board 1B, and the board 2B is provided adjacent to the outside of the board 2A. The boards 1A, 1B and the boards 2A, 2B are connected with a cable 3 for connecting the insulating bushing 4 passed through the rear end of the chamber of the box to the rear part of the bushing.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to gas-insulated substation equipment.

[0002]

2. Description of the Related Art FIG. 16 shows an example of a main circuit single wire connection diagram of a conventional gas-insulated substation equipment. This Figure 16 is a regular spare, 1P
The case of special high voltage power receiving equipment of CT, 2CB is shown. In FIG. 16, on the load side of each cable head CHD (hereinafter, simply referred to as CHD) 1 that is connected to a normal power source and a standby power source (not shown) and is raised from the floor on which this gas-insulated power receiving equipment is installed, Lightning arrester LA (hereinafter referred to as LA), voltage detector (hereinafter referred to as VD), grounding disconnector (hereinafter referred to as ES) 1A, and first and second power source side disconnectors (hereinafter referred to as 1A are connected in order, and ES2A is connected to the load side of these DS1A.

To the load side of these ES2A, first and second vacuum circuit breakers (hereinafter referred to as CB) 1 and DS2A of the first and second load sides are sequentially connected, and these DS2
ES3A is connected to the load side of A. This ES
The load side of 3A, after being connected to each other, is connected to the power source side of a voltage transformer (hereinafter referred to as PCT).

The load side of this PCT is branched into two circuits, DS3A and DS5A on the third and fourth power supply sides of each circuit.
It is connected to the. Of these, on the load side of DS5A,
A grounding transformer (hereinafter referred to as GPT) for obtaining a neutral point for grounding is connected.

On the load side of these DS3A, ES4A
And the third and fourth CB2 are connected in order, and these CB2
ES5A and a fourth load side DS4A are sequentially connected to the load side of the DS4A, and an ES6A is connected to the load side of the DS4A.
And CHD2 are connected, and first and second step-down transformers (hereinafter, referred to as T) are also connected.

FIG. 17 is a front view showing an example of a conventional special high voltage power receiving equipment in which main circuit devices connected as shown in the main circuit single wire connection diagram shown in FIG. is there. In FIG. 17, a regular side power receiving panel 51A, which will be described in detail later, is installed at the left end, and a spare side power receiving panel 51B, which is the same product as the power receiving panel 51A, is symmetrically installed at the right end. These power receiving boards 51A and 51B have CHD1 to E shown in FIG.
Main circuit devices up to S3A are housed as described later in FIG.

Between these power receiving boards 51A and 51B, as shown in FIG.
The transformer primary boards 52A and 52B, which will be described later, which house the main circuit devices from DS3A to CHD2 shown in Fig. 2 are symmetrically installed, and the PTCs are placed between these transformer primary boards 52A and 52B.
A PCT board 50, which will be described later, in which GPT and GPT are stored is installed.

Doors are attached to the front and rear of each of the power receiving boards 51A and 51B, the transformer primary boards 52A and 52B, and the PCT board 50, and an insulating bushing 4 which is not described in detail is provided on the ceiling board as described later. It is installed throughout.

These insulating bushings 4 are connected to each other by means of a high-voltage cross-linked polyethylene cable (hereinafter referred to as a cable) 3 which is arranged on the ceiling plate of each box and which is defined by Japanese Industrial Standard JISC3606. The insulating bushing 4 and the cable 3 are covered with a cable duct 53 shown in FIG. 17 placed on the upper surface of the box body.

FIG. 18 is an explanatory view showing a state in which the main circuit equipment shown in FIG. 16 is distributed and housed in each box body arranged as shown in FIG. 17 for each system. It shows with. The arrangement position of each device indicates that the left side is the front side and the right side is the rear side.

In FIG. 18, power receiving boards 51A at the left end and the right end,
Above the inside of 51B, ES3A and DS2A shown on the power source side of the PCT in FIG. 16 are housed as described later in detail in FIG.

The CB1 shown in FIG. 16 is stored in front of the middle portion of the power receiving boards 51A and 51B, the ES2A, DS1A and ES1A shown in FIG. 16 are stored in the lower portion, and the rear portion is housed. Similarly, LA, VD and CHD1 are housed as will be described later with reference to FIG.

On the other hand, in the transformer primary boards 52A and 52B, DS3A and DS4A shown on the load side of the PCT in FIG. 16 are housed in the upper part as will be described later in detail in FIG. 20, and in the lower part of the middle part, ES5A, DS4A, ES6A are stored, and CHD2 is stored in the rear part. Also, the central PCT board
50 includes PCT, CT and DS5A and GP shown in FIG.
The T is stored as described later in detail in FIG.

FIG. 19 shows a power receiving panel 51 shown in FIGS. 16 and 17.
The right side view of A and 51B is shown. However, the right side plate is omitted. In FIG. 19, the insulating bushing 4 shown in FIGS. 17 and 18 is vertically provided at the center of the ceiling plate of each of the power receiving boards 51A and 51B.

A partition 51 is provided in front of the middle portion of the box body.
a is provided vertically, and a substantially L-shaped partition 51b is provided between the middle part of the partition 51a and the rear part of the ceiling plate.
Further, a U-shaped partition 51f is provided in front of the partition 51a.

As a result, the box body has a circuit breaker chamber 51c in front of the partition 51a and an upper disconnector chamber 51 in the upper rear part of the partition 51a.
d, the lower disconnector chamber formed from the lower part to the rear
It is divided into three gas chambers 51e and an air insulating chamber 56 formed in front of and above and below the partition 51f.

Of these, CB1 is housed in the breaker chamber 51c, and the upper pole of this CB1 is connected to the front end of the insulating spacer 20 penetrating the upper portion of the partition 51a. Also,
The lower pole of CB1 is connected to the front end of the insulating spacer 20 which is provided in the middle of the partition 51a. At the bottom of CB1,
An operating mechanism CB1a with wheels for operating the CB1 is housed in the air insulating chamber 56.

The upper disconnector chamber 51d accommodates the DS2A and ES3A assembled together, and the lower disconnector chamber 51e.
In the rear, VD, LA, CHD1, and ES1A, DS1A, ES2A integrally assembled from the rear are housed in order.

Of these, the front end of the DS2A is a partition 51a.
Is connected to the upper electrode of CB1 via a spacer 20 penetrating the upper part of the. Insulation bushing 4 pierced on the ceiling board
Is connected to the rear end of DS2A, and the upper part of the insulating bushing 4 is connected to the transformer primary boards 52A and 52B, which are adjacent boards shown in FIGS. 17 and 18, by a cable 3.

On the other hand, the front end of DS1A is also connected to the lower pole of CB1 through a spacer 20 penetrating the center of the partition 51a, and the rear end of DS1A is connected to the upper ends of CHD1 and LA and the lower end of VD. Has been done. The cable 3 connected to the lower end of the CHD 1 is connected to the distribution line on the regular high-voltage side through a large-size disconnector (not shown) installed separately from these boxes.

On the front side of the center of the partition 51f,
A pair of disconnector operating mechanisms 55A for operating ES3A and DS2A respectively are fixed. This disconnector operating mechanism 55A
And ES3A and DS2A are connected by a drive shaft shown by a chain line.

Similarly, on the front surface of the lower end of the partition 51f, E
A pair of disconnector operating mechanisms 55B for operating S2A and DS1A respectively are fixed, and ES1A is also provided on the lower rear side of LA.
The disconnector operating mechanism 55C for operating is fixed. These disconnector operating mechanisms 55B, 55C and ES2A, DS1A and ES1A are also connected by the drive shafts indicated by the alternate long and short dash lines and the bevel gears that connect the ends of these drive shafts.

FIG. 20 is a right side view of the transformer primary boards 52A and 52B shown in FIGS. Figure 20
The difference from FIG. 19 is that in the rear part of the upper disconnector chamber 52d, which is partitioned by a vertical partition 52a having the same shape as the partition 51a shown in FIG. 19 and an L-shaped partition 52b behind the partition 52a, FIG.
The DS3A shown in and the ES4A integrally incorporated in the DS3A are vertically housed, and the lower disconnector chamber 52e is also shown in FIG.
Almost the same as ES5A, DS4A, ES6A and CHD2
Is stored, but LA and VD stored in FIG.
It is not stored as shown in FIG.

The front of the circuit breaker chamber 52c has a DS3A
And a pair of disconnector operating mechanisms 57A for operating the ES4A via the drive shaft are attached, and a pair of disconnector operating mechanisms 57B for operating the ES5A and the DS4A are attached to the lower end of the front surface of the circuit breaker chamber 52c. . The disconnector operating mechanism 57C for operating the ES 6A is attached to the rear of the lower side of the CHD 2.

Further, FIG. 21 shows the PC shown in FIGS. 17 and 18.
FIG. 7 is a right side view showing the T board 50. In FIG. 21, a partition 50b is vertically installed at the center of the box, a partition 50a is installed vertically at the front of the box, and a partition 50c of the same product as the partition 50a is symmetrical to the partition 50a at the rear. Vertically installed.

As a result, PT and CT are stored in the gas chamber 50d partitioned by the partitions 50a and 50b, and DS5A and GPT are stored in the gas chamber 50e partitioned by the partitions 50b and 50c. Is stored.

Insulating bushings 4 whose lower ends are connected to CT and DS5A are provided on the ceiling plates of the gas chambers 50d and 50e for three phases respectively. The upper ends of these insulating bushings 4 are, as shown in FIGS. 17 and 18, a PCT board.
Cables 3 are connected to the insulating bushings penetrating the ceiling plates of the transformer primary boards 52A and 52B adjacent to the left and right of the 50. A disconnector operating mechanism 59 for operating the DS 5A via a drive shaft is attached to the center of the rear surface of the partition 50c.

By the way, the gas-insulated power receiving equipment composed of the power receiving boards 51A and 51B, the transformer primary boards 52A and 52B, and the PCT board 50 is used in power receiving equipment of a high-rise building in a city. With the rise in land prices, users are required to reduce the installation area.

Therefore, in the above-described gas-insulated power receiving equipment, as described above, the inside of each box is divided into a plurality of airtight chambers, and each of these airtight chambers is filled with sulfur hexafluoride gas as an insulating gas. are doing. By enclosing this insulating gas, the insulation characteristics between the phases of each main circuit device and the ground potential are improved, and together with the miniaturization of each main circuit device, the storage density of each main circuit device is increased, The installation area is reduced by downsizing the outer shape of each box.

[0030]

However, even for the miniaturized gas-insulated power receiving equipment, the number of users receiving the received voltage at an extra high voltage increases due to the increase in the number of buildings, and the power supply panel increases as the load increases. As the number of electric power stations increases, it is inevitable that this tendency will continue in the future, because of the restrictions of the power receiving room of the building, it is required to make it smaller and reduce the installation area.
Then, the objective of this invention is to obtain the gas insulation substation facility which can reduce an installation area further.

[0031]

The gas-insulated substation equipment of the present invention comprises a first vacuum circuit breaker connected to a power source on one side via a first power source side disconnector, and a load side on a first load side. A first power receiving panel provided with an insulating gas chamber to which a disconnector is connected and which individually houses the first power source side disconnector and the first vacuum circuit breaker and the first load side disconnector, and a power source on the other side. The second load side disconnector and the instrument transformer are connected to the load side of the second vacuum circuit breaker connected to the second power source side disconnector by the second power source side disconnector and the second power source side disconnector. Second vacuum circuit breaker, second load side disconnecting switch, and an insulating gas chamber for individually accommodating the instrument transformer
Power receiving panel, and a load side of the third vacuum circuit breaker connected to the load side of the first power receiving panel and the second power receiving panel via the third power source side disconnecting switch And an instrument current transformer are connected to each other, and a third power source side disconnector and a third vacuum circuit breaker and a third load side disconnector and an insulating gas chamber for individually accommodating the instrument current transformer are provided. A first transformer panel to which the first transformer is connected, and a fourth side on the load side of the first power receiving panel and the second power receiving panel.
The fourth load side disconnector and the grounding transformer are connected to the load side of the fourth vacuum circuit breaker connected through the power source side disconnector, and the fourth power source side disconnector and the fourth vacuum breaker are connected. And a second load side disconnector and an insulating gas chamber for individually accommodating the grounding transformer, and a second transformer panel to which the second transformer is connected on the load side. .

The second power receiving panel and the first transformer panel are provided adjacent to each other, the first power receiving panel is provided next to the outer side of the second power receiving panel, and the first transformer panel is located outside the first transformer panel. It is preferable to install the transformer panel of No. 2 next to each other, and the insulating gas chambers for separately storing the power source side disconnecting switch and the load side disconnecting switch are vertically adjacent to each other behind the insulating gas chamber for storing the vacuum circuit breaker. , It is preferable that an insulating gas chamber for accommodating the instrument transformer, an insulating gas chamber for accommodating the current transformer for the instrument, and an insulating gas chamber for accommodating the grounding transformer are provided adjacent to each other on the lower side of the insulating gas chamber. Insulation gas chamber for accommodating the load-side disconnector provided, insulation gas chamber for accommodating the transformer for the instrument, insulation gas chamber accommodating the disconnector for the power supply provided on the transformer panel and the current transformer for the instrument On the rear wall of the insulating gas chamber, an insulating bushing that connects the adjacent boxes via cables may be installed. It is preferred.

Further, an insulating gas chamber for accommodating the load side disconnector is provided adjacent to the upper part of the rear part of the insulating gas chamber for accommodating the vacuum circuit breaker, and an insulation for accommodating the power source side disconnector is provided under the insulating gas chamber. The gas chamber may be adjacently provided, and the insulating bushing may be provided through the ceiling plate of the insulating gas chamber that houses the load side disconnector.

An insulating gas chamber for accommodating the load side disconnector is provided adjacent to the lower part of the rear part of the insulating gas chamber for accommodating the vacuum circuit breaker, and an insulating gas chamber for accommodating the power source side disconnector is provided above the insulating gas chamber. The chambers may be adjacent to each other, and an insulating bushing may be provided through the bottom plate of the insulating gas chamber that houses the load side disconnector.

Further, an insulating gas chamber for accommodating the voltage transformer may be provided next to the rear portion of the insulating gas chamber for accommodating the load side disconnector, and an insulating bushing may be provided through the ceiling plate of the insulating gas chamber. Alternatively, an insulating gas chamber for accommodating the voltage transformer may be provided adjacent to the rear portion of the insulating gas chamber for accommodating the load side disconnector, and an insulating bushing may be provided through the bottom plate of the insulating gas chamber.

By such a means, the instrument transformer is housed in the second power receiving panel, the instrument current transformer is accommodated in the first transformer panel, and the ground transformer is accommodated in the second transformer panel. By storing the container, the PCT panel, which was required before, is no longer required
Consists of a box of faces.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the gas insulated substation equipment of the present invention will be described below with reference to the drawings. Figure 1
It is a front view which shows 1st Embodiment of the gas insulated power receiving equipment of this invention, Comprising: It is a figure corresponding to FIG. 17 shown by the prior art. The same elements as those of FIGS. 17 to 18 shown in the conventional technique are designated by the same reference numerals.

That is, in FIG. 1, the main circuit devices connected in the main circuit single line connection diagram shown in FIG. 16 are housed in a total of four box bodies for each system. In FIG. 1, a power receiving panel 1A on the regular side is installed at the left end as in FIG. 17, but a power receiving panel 1B that is almost the same as this power receiving panel 1A is installed on the right side of this power receiving panel 1A. ing.

Similar to FIG. 17, these power receiving boards 1A and 1B have CHD1 to E shown in the main circuit single wire connection diagram of FIG.
Equipment corresponding to the main circuit equipment up to S3A is shown in FIG. 3 and FIG.
It is stored as described later. These receiving boards 1
On the right side of A and 1B, transformer primary boards 2A and 2B are installed in order, and the PCT board shown in the prior art is omitted.

A partition plate, which will be described later, mounted inside each of the power receiving boards 1A, 1B and the transformer primary boards 2A, 2B is provided with an insulating bushing 4 shown by a broken line in FIG. These insulating bushings 4 are connected by a cable 3 via an insulating spacer (not shown) which penetrates the side plate of each box as shown by the broken line in FIG. Therefore, there is no cable duct shown in FIG.

FIG. 2 is an explanatory view showing a state in which the main circuit equipment shown in the main circuit single wire connection diagram of FIG. 16 is distributed and housed in each box shown in FIG. Corresponding to 18,
Similar to FIG. 18, each box is indicated by a chain line.

In FIG. 2, in the center inside the power receiving panels 1A and 1B on the left side, the PC of the main circuit single line connection diagram shown in FIG.
This E is compatible with ES3A and DS2A shown on the power supply side of T.
ES3 and DS2, which are miniaturized versions of S3A and DS2A, are housed as described later in detail with reference to FIGS. 3 and 4.

Further, in front of the middle part of the box body, CB1
Are stored as described later in FIG. 3, ES2, DS1, ES1 are stored in the upper part of the central part of the box body, and LA, VD and CHD1 are described later in FIGS. 3 and 4 in the rear part of the box body. It is stored so that On the other hand, in the power receiving panel 1B installed on the right side, the PT is housed in the lower portion as described later with reference to FIG.

DS3 and DS4 are housed in the center of the transformer primary boards 2A and 2B as will be described later in detail with reference to FIGS. 5 and 6, and E is provided on top of the transformer primary boards 2A and 2B.
S5, DS4, ES6 are stored. Further, three CTs are stored in the lower part of the rear end of the transformer primary boards 2A and 2B, and the PCT shown in FIG. 16 is installed in the lower part of the transformer primary board 2A.
The CT constituting the above is housed, and the GPT is housed together with the DS5 in the lower central part of the transformer board 2B as described later in detail with reference to FIG.

FIG. 3 shows a right side view of the power receiving board 1A shown in FIGS. 1 and 2, and FIG. 4 shows a right side view of the power receiving board 1B. Therefore, FIGS. 3 and 4 are views corresponding to FIG. 13 shown in the related art.

In FIGS. 3 and 4, these power receiving boards 1 are shown.
The rear parts of the ceiling plates of A and 1B project upward and are high. Further, a partition 1a is vertically provided in front of the middle part of the box body as in the conventional case, and a substantially L-shaped partition 1b is provided between the middle part of the partition 1a and the rear part of the ceiling plate. There is. Further, an L-shaped partition 1c is provided below the partition 1b.

As a result, the power receiving panel 1A has a circuit breaker chamber 6 in front of the partition 1a and a power receiving chamber 5 above the rear of the partition 1a.
And is divided into three gas chambers of the lower bus line chamber 7. On the other hand, in the power receiving panel 1B, a busbar chamber 8 is further formed below the busbar chamber 7 by a partition 1d, and is divided into four gas chambers. An air insulating chamber that communicates with the front and the lower rear of the circuit breaker chamber 6 is formed in each box.

Among them, the CB1 is housed in the breaker chamber 6 as in the conventional case, and the upper electrode of the CB1 is connected to the front end of the spacer 20 penetrating the upper part of the partition 1a.
DS2 and ES3, which are integrally assembled, are housed in the central portion of the bus room 7, and LA and CHD1, VD, ES1, DS1, ES2, whose upper end is supported by the insulator 18, are housed in the power receiving room 5.
Are stored in order from the rear.

An inspection lid 28A is attached to the ceiling plate at the upper end of the circuit breaker chamber 6 in an airtight and removable manner. In addition, an inspection lid 28B is attached to the front of the ceiling plate of the power receiving room 5 to partition the power receiving room 5 and the bus room 7 from each other.
Also, the inspection lid 28C is attached to the lower part of the VD.

On the other hand, the front end of the insulating bushing 4 penetrating the rear wall of the bus room 7 is connected to the rear end of the DS2, and the rear portion of the insulating bushing 4 becomes the adjacent board shown in FIGS. The transformer primary board 2A and the power receiving boards 1A and 1B provided adjacent to each other are connected by a cable 3 which connects them via an insulating spacer (not shown).

Cable 3 connected to the lower end of CHD1
Is supported by a cable support 19 fixed to a support frame attached to the box body, then penetrates three CTs, passes through a separately installed large disconnector (not shown), and then distributes a special high voltage distribution line. It is connected to the.

Further, PT is housed in front of the busbar chamber 8, and the front end of the insulating bushing 4 penetrating the rear wall of the busbar chamber 8 is the front end of the insulating bushing 4 on the rear wall of PT and the busbar chamber 7. It is connected to the. The rear end of the insulating bushing 4 is connected by a cable 3 to a transformer primary panel 2A, which will be described in detail later with reference to FIGS.

A disconnector operating mechanism 25A for operating the DS1 with the drive shaft shown by the alternate long and short dash line is attached to the upper part of the front surface of the circuit breaker chamber 6, and a disconnector operating mechanism 25B for operating the DS2 is installed below this. Is attached. Further, a disconnector operating mechanism for operating the ES3 is attached to the lower side of the disconnector operating mechanism 25B, and an ES is attached to the lower rear surface of the partition 1b.
A disconnector operating mechanism 25D for operating 1 is attached.

FIG. 5 is a right side view of the transformer primary panel 2A shown in FIGS. 1 and 2, and FIG. 6 is the same transformer primary panel 2B.
FIG. Therefore, FIGS. 5 and 6 are diagrams corresponding to FIG. 20 shown in the related art.

5 and 6, the point different from the power receiving panel 1B shown in FIG. 4 is that the power receiving chamber 9 partitioned by the partition 1a and the partition 1d accommodates the DS5, ES6, and DS4 assembled together. Then, in the bus room 7, ES4,
The DS3 is stored, and the power receiving chamber 9 does not store LA and VD as shown in FIG.

Among these, CT is housed in the busbar room 8 of the transformer primary board 2A shown in FIG. 5, and GPT and DS5 are housed in the busbar room 8A of the transformer primary board 2B. Of these, an inspection lid 28E is attached to the rear wall of the bus room 8A. Further, an insulating bushing 4 is provided at the rear end of each partition 1d, and the lower end of this insulating bushing 4 has
The cable 3 connected to T shown in FIG. 2 is connected. Similar to FIGS. 3 and 4, the cable 3 is supported by the cable support 19 and then penetrates three CTs.

In the gas-insulated substation equipment constructed in this way, the busbar chambers 7 and 8 at the center of each box can use common partitions. Moreover, in the conventional gas-insulated substation equipment, a dedicated PCT panel is installed
Although T, CT, GPT, etc. were stored, in the gas-insulated substation equipment of the present invention, PT is stored in the busbar room 8 of the power receiving panel 1B, and CT is stored in the busbar room 8 of the transformer primary panel 2A. Further, GPT and DS5 are housed in the busbar room 8A of the transformer primary board 2B, and an insulating bushing 4 for connecting the boxes is provided on the rear wall of the busbar rooms 7, 8 and 8A to make a total of 4 Since the substation equipment can be configured by the box body of the surface, the installation area of this gas-insulated substation equipment can be reduced. In the above implementation, the case where the regular power supply is connected to the standby power supply has been described, but the same applies to the case of two-line power reception.

By the way, the gas-insulated substation equipment of the present invention is
The present invention can be applied to the double bus type power receiving equipment shown in the main circuit single wire connection diagram of FIG. 7 and the front layout diagram of FIG. 7 and 8 show the gas-insulated substation equipment adopted in the primary substation of the main system and connected to four different systems. Monthly magazine, Joint Electric Research, Vol. 39, Chapter 6, Chapter 7 Has been described.

7 and 8, a busbar connecting board 11A is installed at the left end, and a busbar connecting board 11B, which is the same product as the busbar connecting board 11A, is installed symmetrically to the busbar connecting board 11A. There is. Of these, the busbar connecting board 11A on the left end is provided with the power receiving board 12A of the 1st system, the transformer primary board 13A, the power receiving board 12B of the 2nd system, and the transformer primary board 13B next to each other in the same order as shown in FIG. It is set up.

Similarly, on the inner side of the bus bar connecting board 11B at the right end, a No. 4 power receiving board 12D, a transformer primary board 13D, a No. 3 power receiving board 12C and a transformer primary board 13C are also shown in FIG. Are arranged next to each other in order. Further, on the right side of the transformer primary panel 13B, a busbar communication panel 14A is adjacently provided, and the transformer primary panel 13C is provided.
A busbar connecting board 14B is also provided adjacent to the left side of the busbar, and a busbar converting board 15 is provided adjacently between the left and right busbar connecting boards 14A and 14B.

Of these, the busbar conversion board 15 and this busbar conversion board
Insulating bushings 4 are vertically provided on the ceiling portions of the busbar connecting boards 14A and 14B that are adjacently provided on both sides of 15. As shown in FIG. 8 (b), these insulating bushings 4 are connected to each other by a cable 3 arranged above the busbar conversion board 15 and the busbar communication boards 14A and 14B, and further, the busbar conversion board.
The positions of the R phase, the S phase, and the T phase are phase-converted by being connected to each of the insulating bushings 4 penetrating forward and backward as shown in FIG. 9 with respect to the inside of 15 and the busbar connecting boards 14A and 14B. Has been done.

FIG. 9 shows a right side view of the power receiving boards 12A, 12B, 12C and 12D, and the power receiving boards 1A and 1B shown in FIGS. 3 and 4.
It is a right side view showing a 2nd embodiment of the gas insulation substation equipment of the present invention corresponding to.

In FIG. 9, the difference from the power receiving panel 1B shown in FIG. 4 is that the central bus room 7A and the lower bus room 8B are different from each other.
An insulating spacer 16 is provided on the front side of the partition 1c for partitioning the space.
, The upper terminal of the insulating spacer 16 is connected to the intermediate portion of the insulating spacer 20 and DS2, and the DS2 is fixed to the intermediate portion of the partition 1c and slightly rearward. Also, DS
2 has ES2 incorporated in the circuit breaker room side. Further, the lower bus bar chamber 8B contains the DS3 whose front end is connected to the lower terminal of the insulating spacer 16 by a conductor, and does not contain the PT shown in FIG. .

In this way, the receiving boards 12A, 12B, 12C, 12D
Even in the gas-insulated substation equipment configured with
The power receiving chamber 5 is provided at the upper end with respect to the rear part, and the power receiving chamber 5
The installation area can be reduced by providing the first busbar chamber 7A and the second busbar chamber 8B in the lower part of the.

Both ends of the DS2 and DS3 housed in the bus room 7A, 8B are connected to the bus room 7A, 8B, respectively.
A transformer primary panel 13 adjacent to the power receiving panels 12A, 12B, 12C, 12D via an insulating bushing 4 provided at the rear end of B.
A, 13B, 13C, 13D and busbar connecting boards 11A, 11B, 14A,
By connecting the 14B and the busbar conversion board 15 to the cable 3 as shown in FIG. 8, even if the power of either system is cut off,
It is possible to open the electrodes of DS2 and DS3, disconnect the power receiving panel connected to the power source in which the power failure occurred, and continue supplying power to the load.

Next, FIGS. 10 and 11 are partial right side views showing a third embodiment of the gas insulated substation equipment of the present invention.
And a cable corresponding to the power receiving panel shown in FIG. 4 and connected to an adjacent panel is arranged at the upper portion of the ceiling plate of the box, as in FIGS. 19 and 20 shown in the related art. The invention as described in 1) is shown. The same elements as those in FIGS. 3 and 4 are designated by the same reference numerals and the description thereof will be omitted.

Of these, in FIG. 10 corresponding to the regular power receiving panel 1A of FIG. 3, a busbar chamber 7B is formed above the rear part of the circuit breaker chamber 6, and below and above this busbar chamber 7B. Thus, an L-shaped power receiving chamber 5A is formed.

An insulating bushing 4 is provided on the ceiling plate of the bus room 7B, and the lower end of the insulating bushing 4 has a width of DS2.
Connected to the rear end of the DS2, the front end of this DS2 is an insulating spacer
It is connected to the upper pole of CB1 via 20. The cable 3 connected to the CHD 1 passes through three CTs arranged vertically in the pit where the cable 3 is raised.

On the other hand, a diagram corresponding to the invention described in claim 7.
In the spare power receiving panel shown in FIG. 11, a bus room 8C is provided adjacent to the rear of the bus room 7B. This bus room 8C
The first half of the ceiling plate of PT projects upward, and PTs are stored upside down.

An insulating bushing 4 is vertically provided in the latter half of the ceiling plate of the bus room 8C. Others are the same as FIG.

In the gas-insulated substation equipment constructed as described above, by providing the busbar chamber 8C adjacent to the rear portion of the busbar chamber 7B in the spare power receiving panel, the depth of the box body increases, but the adjacent box body It is possible to meet the specification that the cable connecting between the two is installed on the top of the box.

Next, FIG. 12 and FIG. 13 are partial right side views showing the fourth embodiment of the gas insulated substation equipment of the present invention.
Also, a case corresponding to the power receiving panel shown in FIG. 11 and having a cable to be connected to an adjacent panel disposed at the lower portion of the box body to provide the invention according to claim 6 will be described. The same elements as in FIGS. 10 and 11 include
The same reference numerals are given and the description is omitted.

Of these, in FIG. 12 corresponding to the regular power receiving panel shown in FIG. 10, an L-shaped power receiving chamber 5A1 is formed above the rear part of the circuit breaker chamber 6, and the lower side of this power receiving chamber 5A1 is formed. On the other hand, a bus room 7B1 is formed.

An insulating bushing 4 is provided in the bottom plate of the bus room 7B1 in a reverse direction. The upper end of the insulating bushing 4 is connected to the rear end of the DS2, and the front end of the DS2 passes through an insulating spacer 20. It is connected to the lower pole of CB1.
The rear terminal of DS1 is connected to the upper end of LA through the terminals of the upper ends of VD and CHD1 as in FIG. The other is
It is the same as in FIG.

On the other hand, a diagram corresponding to the invention described in claim 8.
In the spare power receiving panel shown in 13, the bus room 8C1 is provided adjacent to the rear of the bus room 7B1. An insulating bushing 4 is vertically provided in the latter half of the ceiling plate of the bus room 8C1, and the first half projects downward to accommodate the PT. Others are the same as FIG. The upper ends of these PT and insulating bushing 4 are connected to the rear end of DS2 through an insulating spacer 20 penetrating the rear end of the busbar chamber 7B1.

In the gas-insulated substation equipment constructed as described above, by providing the busbar chamber 8C1 adjacent to the rear portion of the busbar chamber 7B1 in the spare power receiving panel, the depth of the box is increased, but the depth of the adjacent box is increased. It is possible to meet the specification that the cable connecting between the two is installed at the bottom of the box.

Next, FIG. 14 and FIG. 15 are partial right side views showing the fifth embodiment of the gas insulated substation equipment of the present invention.
13 shows another embodiment in which a cable corresponding to the power receiving panel shown in FIG. 13 and connected to an adjacent panel is arranged above the ceiling plate of the box body. The same elements as those in FIGS. 10 to 13 are designated by the same reference numerals and the description thereof will be omitted.

Of these, in FIG. 14 corresponding to the commonly used power receiving panel shown in FIGS. 10 and 12, a busbar chamber 7B2 is formed above the rear part of the circuit breaker chamber 6, and the lower side of the busbar chamber 7B2 is formed. An L-shaped power receiving chamber 5B is formed on the rear side.

An insulating bushing 4 is provided on the back plate of the bus room 7B2, and the front end of the insulating bushing 4 is a DS.
2 is connected to the rear end of DS2, and the front end of DS2 is connected to the upper pole of CB1 via the insulating spacer 20.

On the other hand, in the spare power receiving panel shown in FIG. 15, a bus room 8D is provided adjacent to the upper part of the bus room 7B2. This bus-bar room 8D projects upward from the box and accommodates PT.

An insulating bushing 4 is provided from behind in the latter half of the back surface of the bus room 8D. An insulating spacer 20 that internally connects the upper and lower insulating bushings 4 is provided through a partition plate that partitions the bus chamber 8D and the bus chamber 7B2. Others are the same as FIG.

In the gas-insulated substation equipment constructed as described above, by providing the busbar chamber 8D adjacent to the upper part of the busbar chamber 7B2 in the auxiliary power receiving panel, the depth of the box is increased, but the box of the adjacent box is increased. It is possible to meet the specification that the cable connecting between the two is installed on the back of the upper part of the box.

[0083]

As described above, according to the gas-insulated substation equipment of the present invention, the load side of the first vacuum circuit breaker connected to the power source on one side through the disconnector of the first power source side is connected to the first load side. A first power receiving panel provided with an insulating gas chamber to which a disconnector is connected and which individually houses the first power source side disconnector and the first vacuum circuit breaker and the first load side disconnector, and a power source on the other side. The second load side disconnector and the instrument transformer are connected to the load side of the second vacuum circuit breaker connected to the second power source side disconnector by the second power source side disconnector, On the load side of the first power receiving panel and the second power receiving panel, and the second power receiving panel equipped with the insulating gas chamber for individually accommodating the vacuum circuit breaker and the second load side disconnector and the instrument transformer. The third load side disconnector and the current transformer for measuring instrument are connected to the load side of the third vacuum circuit breaker connected through the third power source side disconnector, and the third power source side disconnector And a first transformer panel having a third vacuum circuit breaker, a third load-side disconnecting switch, and an insulating gas chamber for individually accommodating a current transformer for measuring, and a first transformer connected to the load side, , A load side of the fourth vacuum circuit breaker connected to the load side of the first power receiving panel and the second power receiving panel via a fourth power source side disconnector, and a fourth load side disconnector and a grounding transformer Connected with the fourth
And a second vacuum circuit breaker, a fourth load side disconnector and an insulating gas chamber for individually accommodating a grounding transformer, and a second transformer connected to the load side. By installing a transformer panel, the instrument transformer is stored in the second power receiving panel,
The first transformer panel contains the current transformer for the instrument, and the second transformer panel contains the grounding transformer.
Since no panel is required, it is possible to obtain gas-insulated substation equipment that can further reduce the installation area.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of gas-insulated substation equipment of the present invention.

FIG. 2 is a layout diagram of a main circuit single wire connection showing the first embodiment of the gas insulated substation equipment of the present invention.

FIG. 3 is a right side view showing a power receiving board on one side which constitutes the first embodiment of the gas insulated substation equipment of the present invention.

FIG. 4 is a right side view showing the other side power receiving panel that constitutes the first embodiment of the gas insulated substation equipment of the present invention.

FIG. 5 is a right side view showing a transformer primary panel on one side which constitutes the first embodiment of the gas insulated substation equipment of the present invention.

FIG. 6 is a right side view showing the transformer primary board on the other side, which constitutes the first embodiment of the gas insulated substation equipment of the present invention.

FIG. 7 is a layout diagram of a main circuit single wire connection showing a second embodiment of the gas insulated substation equipment of the present invention.

FIG. 8 is a layout view showing a second embodiment of the gas insulated substation equipment of the present invention, (a) is a partial plan view and (b) is a front view.

FIG. 9 is a partial right side view showing the second embodiment of the gas insulated substation equipment of the present invention.

FIG. 10 is a right side view showing a third embodiment of the gas insulated substation equipment of the present invention.

FIG. 11 is a right side view showing the fourth embodiment of the gas insulated substation equipment of the present invention.

FIG. 12 is a right side view showing a fifth embodiment of the gas insulated substation equipment of the present invention.

FIG. 13 is a right side view showing a sixth embodiment of the gas insulated substation equipment of the present invention.

FIG. 14 is a right side view showing a seventh embodiment of the gas insulated substation equipment of the present invention.

FIG. 15 is a right side view showing an eighth embodiment of the gas insulated substation equipment of the present invention.

FIG. 16 is a main circuit single wire connection diagram showing an example of conventional gas-insulated substation equipment.

FIG. 17 is a front view showing an example of conventional gas-insulated substation equipment.

FIG. 18 is a layout diagram of a main circuit single wire connection showing an example of conventional gas-insulated substation equipment.

FIG. 19 is a right side view showing an example of a power receiving panel that constitutes a conventional gas-insulated substation facility.

FIG. 20 is a right side view showing an example of a transformer primary panel that constitutes a conventional gas-insulated substation facility.

FIG. 21 is a right side view showing an example of a PCT panel that constitutes conventional gas-insulated substation equipment.

[Explanation of symbols]

1A, 1B, 12A, 12B, 12C, 12D ... Power receiving board, 2A,
2B, 13A, 13B, 13C, 13D ... Transformer primary board, 3 ... High-voltage cross-linked polyethylene cable, 4 ... Insulation bushing,
5, 5A, 5A1, 5B, 9 ... Power receiving room, 6 ... Circuit breaker room,
7,7A, 7B, 7B1,7B2,8,8A, 8B, 8
C, 8D ... Busbar room, 11A, 11B, 14A, 14B ... Busbar communication board, 15 ... Busbar conversion board, 17 ... Duct, 18 ... Insulator, 19 ... Cable support, 25A, 25B, 25C, 25D ... Disconnector operating mechanism ,
CB1, CB2 ... Vacuum breaker, CHD1, CHD2 ... Cable head, CT ... Current transformer for instrument, DS1, DSD
2, DS3, DS4 ... Disconnector, ES1, ES2, ES
3, ES4 ... Grounding disconnector, GPT ... Grounding transformer, LA ...
Lightning arrester, VD ... voltage detector, T ... step-down transformer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shiro Otake No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu factory (72) Inventor Etsuro Fukunaga 1-1-1, Shibaura, Minato-ku, Tokyo Toshiba Headquarters Co., Ltd. In the office (72) Inventor Nobuo Masaki No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu factory, Toshiba Corporation

Claims (8)

[Claims] 1. A first load side disconnector is connected to a load side of a first vacuum circuit breaker connected to a power source on one side via a first power side disconnector, and the first power source disconnector is connected. Switchboard, a first power receiving panel provided with an insulating gas chamber for individually accommodating the first vacuum circuit breaker and the first load side disconnector, and a second power source side disconnector for a power source on the other side. A second load side disconnector and an instrument transformer are connected to the load side of the second vacuum circuit breaker connected by the above, and the second power source side disconnector, the second vacuum circuit breaker, and the second Second power receiving panel provided with an insulating gas chamber for individually accommodating the load side disconnector and the instrument transformer, and a third power source on the load side of the first power receiving panel and the second power receiving panel. A third load side disconnector and an instrument current transformer are connected to a load side of a third vacuum circuit breaker connected via a side disconnector, and the third power source side disconnector is connected. And a third vacuum circuit breaker, an insulating gas chamber for individually accommodating the third load side disconnector and the instrument current transformer, and a first transformer connected to the load side. A transformer panel, a load side of a fourth vacuum circuit breaker connected to a load side of the first power receiving panel and the second power receiving panel via a fourth power source side disconnector, and a fourth load side. An insulating gas chamber, which is connected to a disconnector and a grounding transformer, and individually houses the fourth power source-side disconnector, the fourth vacuum circuit breaker, the fourth load-side disconnector, and the grounding transformer. A gas-insulated substation facility comprising a second transformer panel including a second transformer connected to the load side. 2. The second power receiving panel and the first transformer panel are provided adjacent to each other, the first power receiving panel is provided adjacent to the outside of the second power receiving panel, and the first transformer is provided. The gas-insulated substation equipment according to claim 1, wherein the second transformer board is provided adjacent to the outside of the board. 3. An insulating gas chamber for individually accommodating the power source side disconnector and the load side disconnector is vertically adjacent to a rear portion of the insulating gas chamber for accommodating the vacuum circuit breaker, and below the insulating gas chamber. The insulating gas chamber for accommodating a transformer for an instrument, the insulating gas chamber for accommodating the current transformer for an instrument, or the insulating gas chamber for accommodating the grounding transformer is adjacently provided. The gas insulated substation equipment according to claim 2. 4. An insulating gas chamber for accommodating the first and second load side disconnectors provided in the first and second power receiving boards and an insulating gas chamber for accommodating the instrument transformer. Of the insulating gas chamber that houses the third and fourth power source side disconnectors provided on the rear wall and the first and second transformer panels, and the insulating gas chamber that houses the instrument current transformer. 4. An insulating bushing for connecting adjacent box bodies through a cable is provided on the rear wall so as to penetrate therethrough.
Gas-insulated substation equipment according to any one of 1. 5. The insulating gas chamber for accommodating the load side disconnector is adjacent to an upper portion of a rear portion of the insulating gas chamber for accommodating the vacuum circuit breaker, and the power source side disconnector is provided under the insulating gas chamber. 4. The gas-insulated substation according to claim 3, wherein the insulating gas chamber for accommodating the container is provided adjacent to the insulating gas chamber, and the insulating bushing is provided through a ceiling plate of the insulating gas chamber for accommodating the load-side disconnector. Facility. 6. The insulating gas chamber accommodating the load side disconnector is adjacent to a lower portion of a rear portion of the insulating gas chamber accommodating the vacuum circuit breaker, and the power source side disconnector is disposed above the insulating gas chamber. 4. The gas-insulated substation equipment according to claim 3, wherein the insulating gas chamber for housing the load-side disconnector is adjacent to the insulating gas chamber, and the insulating bushing is provided through the bottom plate of the insulating gas chamber for housing the load side disconnector. 7. The insulating gas chamber for accommodating the voltage transformer is provided adjacent to a rear portion of the insulating gas chamber for accommodating the load side disconnector, and the insulating bushing is inserted through a ceiling plate of the insulating gas chamber. The gas-insulated substation equipment according to claim 5, wherein the gas-insulated substation equipment is provided. 8. The insulating gas chamber for accommodating the voltage transformer is provided next to the rear portion of the insulating gas chamber for accommodating the load side disconnector, and the insulating bushing is provided through the bottom plate of the insulating gas chamber. The gas-insulated substation equipment according to claim 6, wherein