JP2002238112A - Cubicle-type power reception and conversion facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cubicle-type power reception and conversion facility which can be made into a power reception and conversion facility of multi- application by rearranging apparatuses, such as a transformer, a high voltage board, a low voltage board, easily and quickly, according to the situation of an installation site, and also can be made so that the heat generated from the transformer does not affect the apparatuses, such as a high voltage board, a low voltage board and further where addition of optional apparatuses, such as a reactor board, a VCT board, a high voltage feed board can be performed easily and quickly. SOLUTION: This facility is equipped with circuits where the high voltage board(s), the low voltage board(s), and the transformer(s) are each inserted using one piece or plural pieces, and individual apparatuses are stored in separate cases, and these cases can be separated from one another, in a condition with their storing the apparatuses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cubicle-type power receiving and transforming equipment, and more particularly, to a versatile receiving and transforming equipment such as a transformer, a high-voltage board, a low-voltage board, etc., which is easily and quickly rearranged according to the situation of an installation site. Substation equipment, and
The heat generated from the transformer can be prevented from affecting the equipment such as the high-pressure board and low-pressure board, and the optional equipment such as the reactor board, VCT board and high-pressure feed board can be easily and quickly added. It relates to a cubicle-type power receiving and transforming facility that can be used.

[0002]

2. Description of the Related Art Conventionally, cubicle-type power receiving and transforming equipment has been frequently used in construction sites and civil engineering sites. Conventional cubicle-type substation equipment
A high-voltage board, a low-pressure board, and a circuit in which a transformer is inserted are provided, and these devices are housed in one case.

[0003]

However, the above-mentioned prior art has the following problems. That is, the conventional cubicle-type power receiving and transforming equipment has a high-voltage board, a low-voltage board, and a transformer housed in a single case, so that there is no partition wall between these devices, and therefore, the transformer In many cases, the heat generated from the heat directly acts on the high-pressure plate and the low-pressure plate to adversely affect these devices.

Further, it is often necessary to change the so-called high-voltage panel, low-voltage panel, or transformer in accordance with the situation at the installation site, so-called specification change. However, it is not easy to replace the equipment in the case. However, changing the specifications required a great deal of time, labor and man-hours. This was a particularly troublesome problem for cubicle-type substation equipment rental companies.

[0005] In this type of power receiving and transforming equipment, a capacitor is often inserted in the circuit to improve the load power factor. Failures such as harmonic overload of the device itself often occur. Therefore, for the purpose of reducing these obstacles, a reactor board is provided between the high-voltage board and the transformer to interconnect these devices. However, the conventional cubicle-type substation equipment has a high-voltage board and a transformer housed in a single case, and the gap between the high-voltage board and the transformer cannot be increased in the case. It was necessary to separately prepare a case large enough to accommodate all of the transformer and the reactor board, and to reload these devices in the case. Therefore, a lot of time, labor,
Man-hours are required, and the rental company has a problem that the types and number of cases to be managed increase, and the management space and management cost increase. In addition to the reactor board, various optional equipment such as a high-pressure feed board and a VCT board may be added as necessary. However, these equipments are also provided for the same reason as the reactor board. Expansion was difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a multipurpose power receiving and transforming facility by easily and quickly rearranging equipment such as a transformer, a high-voltage board, and a low-voltage board according to the situation of an installation site. In addition, it is possible to prevent the heat generated from the transformer from affecting the equipment such as the high-pressure board and the low-pressure board, and furthermore, the optional equipment such as the reactor board, the VCT board, and the high-pressure feed board. It is an object of the present invention to provide a cubicle-type power receiving and transforming facility capable of easily and quickly expanding an extension.

[0007]

According to the first aspect of the present invention,
It is equipped with a circuit in which one or more high-voltage boards, low-voltage boards, and transformers are inserted, respectively, and individual devices are housed in separate cases, and these cases can be separated from each other while housing the devices. This is a cubicle-type power receiving and transforming facility characterized by being performed.

According to a second aspect of the present invention, optional equipment such as a reactor board, a VCT board, and a high-pressure feed board are inserted into the cubicle-type power receiving and transforming equipment, and the individual equipment is housed in separate cases. The cubicle-type power receiving and transforming facility according to claim 1, wherein the case is configured to be separable from each other while housing the device.
The above problems are completely solved by providing these inventions.

[0009]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view illustrating an example of a cubicle-type power receiving and transforming facility according to the present invention. FIG.
It is a front view which shows the inside of the substation equipment shown in FIG. FIG.
FIG. 2 is a front view showing an example of a separated state of the substation equipment shown in FIG. 1.

As shown in FIG. 2, a cubicle-type power receiving and transforming facility (1) (hereinafter referred to as a power receiving and transforming facility) according to the present invention comprises a high-voltage board (2), a low-voltage board (3), and a transformer (4). One or a plurality of circuits (one in the illustrated example) are provided, and each device is provided in a separate case (5
a), (5b) and (5c), and these cases (5a), (5b) and (5c) are separable from each other in a state in which the devices are housed. In the illustrated example, a VCT board (transformer instrument panel) (6) is separately inserted into the circuit, and the VCT board (6) is housed in another case (5d). (5d) is the case (5
A), (5b), and (5c) can be separated while the VCT board (6) is housed.

As the high-pressure board (2), the low-pressure board (3), the transformer (4), and the VCT board (6), conventionally known ones can be used. The voltage of 6000 (V) received from the panel (2) is
(V), 220 (V), and 440 (V) at the same time, and the current after the transformation can be simultaneously sent to the low-voltage board (3). The primary voltage value and the secondary voltage value are not limited to the values just illustrated. The high-pressure board (2), the low-pressure board (3), the transformer (4), and the VCT board (6) are inserted in the circuit one by one in the illustrated example, but in the present invention, the numbers are different for each device. Is also good. For example, one high-pressure board (2), a plurality of low-pressure boards (3), a plurality of transformers (4), and one VCT board (6) can be arranged. Usually, the performance of a plurality of devices, for example, the capacity (unit: kVA), the primary voltage (unit: V), the secondary voltage (unit: V), and the like are different for each device, and multipurpose power receiving and transforming equipment ( 1). As the secondary voltage set when the primary voltage is 6000 (V), for example, 110
(V), 220 (V), and 440 (V) can be selected. The primary voltage value and the secondary voltage value are not limited to the values just illustrated.

The cases (5a), (5b) and (5c) individually accommodate the high-pressure board (2), the low-pressure board (3) and the transformer (4). The material is not particularly limited. For example, the material may be formed in a box shape from a steel plate, foamable concrete, or the like. Cases (5a), (5b),
The shape of (5c) is not particularly limited as long as the device can be openably and closably encased. Cases (5a), (5
A wall plate (7) is provided on the two left and right sides and the back of (b) and (5c), a ceiling plate is provided on the upper surface, and a bottom plate (not shown) called a base is provided on the bottom surface. An anchor bolt hole is formed in the bottom plate portion, and the bottom plate portion is fixed to the floor surface by inserting and fixing an anchor bolt in this hole.
Note that the bottom plate is at a predetermined distance from the floor (for example, about 10 cm).
It is fixed in a raised state. The case (5a) and the case (5c), and the case (5b) and the case (5c) are adjacent to each other, but the wall plate portions (7),
In (7), a wiring insertion hole (not shown) for electrically connecting devices is formed.

Next, a method of changing the specification of the power receiving and transforming equipment (1) will be described. Substation equipment according to the present invention (1)
In, when it becomes necessary to change the specifications according to the situation at the installation site, only the device to be changed is replaced together with the case. Specifically, first, the electrical connection between the device to be changed (for example, the low-voltage board (3) (see FIG. 3)) and the device (for example, the transformer (4)) connected thereto is released. Next, the equipment to be changed (for example, the low-pressure board (3)) is removed from the floor surface, and the equipment to be newly installed (for example, the low-pressure board (3) of another specification) is fixed at the place. And make an electrical connection to the next device. As described above, the specification change of the substation equipment (1) is completed.

According to the substation equipment (1) according to the present invention,
Transformers (4), high-pressure boards (2),
The equipment such as the low-voltage board (3) can be easily and quickly rearranged to form the versatile power receiving and transforming equipment (1). The transformer (4) and the high-pressure board (2), and the transformer (4) and the low-pressure board (3) are provided with a wall plate (7) of a case for accommodating them.
(7) Since the heat is isolated by the two sheets and is insulated by the air layer between the two wall plates (7) and (7), the heat generated from the transformer (4) is transferred to the high-pressure board (2). ), Does not adversely affect equipment such as the low-pressure board (3). In addition, when a harmonic current flows in a circuit, etc., a reactor board (not shown) can be easily and promptly inserted. Can be prevented from adversely affecting the device. Also, when transmitting the received high-voltage primary current to another power receiving and transforming equipment (one or more, not shown), a high-voltage feeder (not shown) can be easily and quickly inserted into the power receiving and transforming equipment. Can be done. Further, in the case where a meter for integrating the electric power rate is provided, a VCT board (6) including the meter and a transformer for giving a signal to the meter can be easily and quickly inserted into the substation equipment (1). .

As described above, optional equipment (not shown) such as a reactor board, a high-pressure feed board, and a VCT board can be inserted into the power receiving and transforming equipment according to the present invention. Even when these optional devices are inserted, the individual devices are housed in separate cases, and these cases can be separated from each other while the devices are arranged inside. By inserting optional equipment (not shown) such as a reactor board, high-pressure feed board, VCT board, etc., it is possible to make an excellent power receiving and transforming equipment (1) having additional functions according to the equipment.
The specification change becomes very easy. In particular, when a reactor board is provided, it is possible to prevent a harmonic current from adversely affecting a power supply, a capacitor, and the like. In addition, the reactor can be removed together with the case if necessary, and the removal operation can be easily performed, so that the specification can be easily changed.

[0016]

According to the first aspect of the present invention, there is provided a circuit in which one or a plurality of high-voltage boards, low-voltage boards, and transformers are respectively inserted, and individual devices are accommodated in separate cases. Are cubicle-type power receiving and transforming facilities characterized in that they are separable from each other in a state in which the equipment is housed, and therefore have the following effects. That is,
Equipment such as a transformer, a high-voltage board, and a low-voltage board can be easily and quickly rearranged according to the situation at the installation site to provide a versatile power receiving and transforming facility. This is particularly beneficial for cubicle substation equipment rental companies. In other words, when renting cubicle-type substation equipment,
Since the cubicle-type substation equipment that has been returned is often rented with its specifications changed, it is very significant that it is easy to change the specifications. Further, the transformer and the high-voltage board, and the transformer and the low-pressure board are isolated by the two wall plate portions of the case accommodating them, and are insulated by the air layer between the two wall plate portions. The heat generated from the transformer does not adversely affect equipment such as high-pressure boards and low-pressure boards. In addition, when a harmonic current is supplied, the reactor board can be easily and quickly added, and the increase can prevent the harmonic current from adversely affecting the equipment.

According to a second aspect of the present invention, optional equipment such as a reactor board, a VCT board, and a high-voltage feed board are inserted into the cubicle-type power receiving and transforming equipment, and the individual equipments are housed in separate cases. The cubicle according to claim 1, wherein the case is separable from each other in a state in which the device is housed, so that the following effects are obtained. That is, reactor board, high-pressure feed board, V
By inserting an optional device (not shown) such as a CT board, an excellent power receiving and transforming facility having an additional function corresponding to the device can be obtained, and the specification change becomes extremely easy. In particular, when a reactor board is provided, it is possible to prevent a harmonic current from adversely affecting a power supply, a capacitor, and the like. In addition, it is also possible to remove the reactor board together with the case as necessary, making it easy to remove it.
Changing the specifications becomes extremely easy.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a cubicle-type substation facility according to the present invention.

FIG. 2 is a front view showing the inside of the substation equipment shown in FIG.

3 is a front view showing the power receiving and transforming equipment shown in FIG. 1 in a separated state.

[Explanation of symbols]

 1 ················································································ Transformers 5a, 5b, 5c, 5d.

Claims (2)

[Claims] 1. A high-voltage board, a low-pressure board, and a transformer each having a circuit in which one or more transformers are inserted, and individual devices are housed in separate cases. Cubicle-type power receiving and transforming equipment characterized by being separable from each other. 2. Optional equipment such as a reactor board, a VCT board, and a high-voltage feed board are inserted into the cubicle-type power receiving and transforming equipment, and each equipment is housed in a separate case. These cases house the equipment. The cubicle-type power receiving and transforming equipment according to claim 1, wherein the cubicle-type power receiving and transforming equipment can be separated from each other in a state where the cubicle is installed.