KR20200022662A - A transformer which all-in-one Power Receiving - Google Patents

Abstract

The present invention relates to an integrated extra-high tension power receiving transformer, wherein a power receiving device consisting of a switch for a fault section, a metering outfit, and a magnet fuse and a transformer unit consisting of a plurality of transformer units are separated by a separation plate in a transformer case to be individually separated and insulated through insulating oil. Therefore, the transformer can perform a function of power receiving equipment as one transformer, and improve an insulation rate to prevent a short circuit and a negligent accident.

Description

Integrated high voltage power receiver {A transformer which all-in-one Power Receiving}

The present invention is provided to separate the insulation through the insulating oil when the breaker breaker and the transformer transformer transformer for the instrument, the power receiving unit consisting of a magnetic fuse and the transformer unit consisting of a plurality of transformer units are separated through the separator plate in the power receiving device case, respectively. The present invention relates to an integrated high-voltage power receiving device capable of performing a function of a power receiving facility as a single transformer and preventing a short or a safety accident by increasing an insulation rate.

In general, a water substation facility is a device installed in a power plant, a substation, or a building that is equipped with electric facilities. Are distinguished.

The water substation facility is divided into an extra high voltage unit and a transformer unit, and the extra high pressure unit functions to receive electricity of a high pressure or a special high voltage supplied from an external source, and the transformer unit is suitable for a load of a customer with high or special high voltage electricity. It functions to reduce the pressure, and the low pressure part is to send a low pressure of electricity to a plurality of loads.

In the above-described air insulation type water substation equipment, the high voltage part and the transformer part constituting the water substation must maintain the insulation distance for the insulation between each other. When installing, it is not easy to carry and install water substation equipment.

In addition, the outside of the charging section (connection point between the conductors) of the extra-high voltage section and the transformer section is exposed, and thus there is a risk of electric shock accidents, and there are many cases where animals enter the switchboard or cause ground faults that are not intended by birds on the power pole. .

If the water substation is installed in a basement or outdoors with high humidity, the insulation may be deteriorated due to aging changes such as direct sunlight, and a ground fault may occur due to leakage current. In addition to waterproofing, the manager should check the daily maintenance of the water substation facilities.

In order to alleviate these disadvantages, registered utility model No. 435604 discloses a sealed part faucet-type faucet installation. The configuration thereof is as shown in FIG. 1, and the inside of the box-shaped body 28 has a failure section automatic switchgear, an arrester, a power fuse, and an instrument. A power inlet with a transformer, a transformer board with a transformer and a cooler, and a circuit breaker (6) A low pressure plate with a low-pressure MCCB and various instruments.The power inlet has a fault zone automatic switch (1), an arrester, and an epoxy. The mold power fuse cartridge 3 is combined into one device and connected to the instrument transformer 4 installed in the upper portion by a cable connecting member 27.

In addition, a cable connecting member 27 is used for the power input and output terminals to the instrument transformer 4, and the power transformer is provided with a spare terminal 14 for expansion on the primary side and a thermometer 21 and the like. The heat dissipator 15 is detachably mounted to the radiator of the transformer, and the lower part of the transformer circulates the refrigerant by the cooling unit in which the cooler 16 is installed. The low pressure air circuit breaker 6 and the emergency switching switch is installed, the lower portion is made of a configuration that is installed a plurality of MCCB (7).

However, the faucet installation as described above, even if the fault zone automatic switchgear, instrument transformer, transformer, epoxy mold cartridge, cable connection material is assembled and grounded, the epoxy mold cartridge is partly shielded structure, not completely shielded, the insulation distance between phases There is a disadvantage in that the volume is increased.

In addition, it is a connection structure by automatic wiring switch of fault section automatic switch and instrument transformer and horizontal line between transformer, and connection between transformer and instrument transformer and instrument transformer and fault section automatic switch is also connected by cable wiring by elbow connection material. Therefore, there is a disadvantage in that the compactness is not realized due to the complexity of the cable wiring.

An object of the present invention for improving the conventional problems as described above, as a one-piece high-voltage power receiving device to perform the function of the existing power equipment, and to increase the insulation rate of ground fault accidents caused by external factors and It is possible to prevent safety accidents in advance, and by installing fault section breaker, transformer transformer, and fuse inside the transformer filled with insulating oil to insulate it, it is possible to manufacture an integrated special high voltage power receiving device compactly. In order to minimize the installation area, and to provide an integrated special high-voltage power receiving device to prevent the charging section is exposed to the atmosphere.

The present invention is to achieve the above object, the fault section breaker and the transformer current transformer for the instrument, the receiving part consisting of the magnetic fuse and

The transformer unit consisting of a plurality of transformer units are separated through a separator plate in the power receiving device case, and each is built in,

Provides an integrated special high-voltage power receiving device that is installed so that the power receiving portion and the transformer is separated and insulated through separate insulating oil filled in both sides of the separation plate.

In addition, the present invention is arranged so that only the internal parts of the fault breaker and the instrument transformer are disposed in the space of the power receiving device case, and the fuse connected to the fault breaker switch is replaced by opening the cover provided in the power receiving device case. It provides an integrated extra high voltage receiving device.

In addition, the present invention provides an integrated high-voltage power receiving device having a configuration in which a fault section switch and a transformer transformer current transformer are connected through a cable connecting member or a bushing.

In addition, the present invention is the fault zone switch and the transformer transformer transformer for the instrument is disposed in the space via the insulation unit in the power receiving device case, the meter box or controller, the vacuum circuit breaker further outside the power receiving device case It provides an integrated extra-high voltage power receiving device consisting of a connected configuration.

Subsequently, the fault section breaker and the transformer transformer current transformer of the present invention provide an integrated high-voltage power receiving device installed to be exposed to the outside in an insulated state through a bushing provided in the power receiving device case.

As described above, according to the present invention, as a single integrated high-voltage power receiving device to perform the function of the existing power receiving equipment, to increase the insulation rate to prevent ground fault accidents and safety accidents caused by external factors in advance, insulation oil price By installing insulation section breaker, transformer transformer current transformer, fuse, etc. inside of the transformer to be filled, the integrated special high voltage power receiving device is manufactured compactly to minimize the installation area of the power receiving equipment, and the charging part is not exposed to the atmosphere. It is.

1 is a plan view showing a conventional water distribution equipment.
2 is a plan view of a transformer according to the present invention.
3 is a connection diagram showing a transformer according to the present invention.
4 is a diagram illustrating main parts of a transformer according to another embodiment of the present invention.
5 to 7 is a schematic diagram showing an installation state of a transformer according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the power receiving device T of the present invention, the transformer unit 100 is installed in a space S formed inside the power receiving device case 110 having the heat radiation fins 117 for cooling.

In addition, the transformer unit 100 is separated from the fault section switchgear 210, the transformer transformer current transformer 230, the fuse 250, the lightning arrester 270 on the space (S) inside the power receiver case 110. Place each.

At this time, the separating plate 500 is provided on the inner side of the power receiving device case 110, the transformer unit 100, the fault section switchgear 210 and the transformer transformer current transformer 230, the fuse ( 250, a light receiving unit 550 consisting of a lightning arrester 270, etc. are completely separated from both sides from the inside of the power receiving device case is mounted, respectively, filled with the insulating oil 300 in the inner space (S), the insulating oil ( 300 is filled so that the transformer part consisting of the transformer unit 100 and the fault section switchgear 210 and the power receiving part consisting of the transformer transformer current transformer 230, the fuse 250 and the like, respectively.

At this time, the failure section breaker 210, the transformer transformer current transformer 230 and the fuse 250, the vacuum circuit breaker 170 is installed to be directly exposed to the insulating oil 300 is separated from the insulating portion is filled with a transformer unit power supply They are connected in sequential order according to their supply order.

In addition, the separating plate installed inside the power receiving device case completely blocks the insulating oil from being mixed with each other.

On the other hand, the vacuum circuit breaker 170 may be installed inside the power receiving device case 110 or exposed to the outside.

In addition, the fuse 250 connected to the failure section switch 210 may be installed to be replaceable from the outside through the opening of the cover 113 provided on the upper side of the power receiving device case 110.

In addition, the failure section switch 210, the transformer transformer current transformer 230, an arrester, a vacuum circuit breaker, a fuse, a transformer unit, and the like are sequentially connected through a cable connecting member (not shown) or a bushing.

In this case, the power receiving unit and the transformer may be installed to be electrically connected through an insulating bushing 570 that is integrally connected to the separator plate and exposed to the insulating oil, or may be installed to be connected through a cable outside the power receiving device case. .

In addition, the outside of the faucet device case 110, a meter box (not shown) connected to the transformer transformer current transformer 230, a controller (not shown) connected to the failure section switch 210 and the handle for manual operation. 217 are provided respectively.

At this time, the transformer transformer current transformer 230, the current transformer 231 and the transformer 233 as a connection structure of the current transformer 231 and the transformer 233 is exposed to the insulating oil 300, the fault breaker 210 ) Is also installed on the fixed terminal 211 and the one side of the movable terminal 215 connected via the switch 213 to be exposed to the insulating oil 300, the movable terminal 215 is the outside of the power receiving device case It is connected to the handle 217 exposed to.

Subsequently, the input side of the fault section switch 210 and the output side of the transformer unit 100 are connected to each other through a bushing 111 provided in the power receiving device case 110 when an external three-phase power is input or output through a cable. The terminal 115 is installed to be exposed to the outside in an insulated state.

In addition, the failure section switch 210 and the transformer transformer current transformer 230 is provided to be electrically insulated through the insulating unit 180, which is a non-conductor provided on the inner side of the power receiving device case (110).

In this case, the insulating unit 180 is made of an assembly structure of the bracket 181 coupled to the interior of the power receiving device case 110 and the insulating block 185 connected to the bracket 181.

In addition, a plurality of power receiving device cases separately provided on the upper side of the frame 590 may be provided, and a power receiving part and a transformer part may be built therein, and insulating oil may be filled.

At this time, the outside of the power receiving device case may be installed to be connected through a cable connecting member or a bushing.

The power receiver and the transformer may be connected to each other by penetrating the separator plate installed inside the power receiver case, and both the power receiver and the transformer may be connected to the cable connecting member or bushing through the outside of the power receiver case where the separator is installed. It may be installed to be connected through.

The operation of the present invention having the above configuration will be described.

As shown in FIG. 2 to FIG. 7, in the present invention, a transformer unit 100 is disposed inside the power receiving device case 110 in which the insulating oil 300 is filled, and a high-pressure unit is disposed on one side of the transformer unit 100. Fault section switchgear 210 and the fuse, lightning arrester and transformer transformer 230 for the instrument is disposed, respectively.

In this case, a plurality of input / output terminals 115 having the bushing 111 interposed therebetween are exposed to the outside of the power receiving device case 110 and connected to the input side of the failure section switch 210 to receive power.

And, the fuse 250 is connected to one side of the failure section switch 210, one side of the fuse 250 is connected to the arrester 270.

In addition, the failure section switch 210 connected to the fuse 250 is connected to the transformer transformer current transformer 230, the transformer transformer current transformer 230 is connected to the transformer unit (100).

At this time, the failure section switch 210 and the transformer transformer current transformer 230 may be assembled by changing the mounting position inside the power receiving device case.

The transformer unit 100 of the present invention and the fault section switchgear 210 and the transformer transformer current transformer 230 is a main portion of the insulating oil is filled in the interior of the power receiving device case 110 in a configuration that is exposed without a separate case. When the 300 is in contact, the electrical shield structure is possible without a separate case for insulation, thereby simplifying the connection work.

At this time, when the oil is smoked by the operation of the transformer unit 100 to prevent the heat transfer to the power receiving portion is separated by the separating plate 500 the insulating oil insulating the transformer unit to prevent damage to the power receiving portion due to overheating. do.

In addition, in the connection of the transformer current transformer 230 and the fuse 250 and the arrester 270, the transformer unit 100, and the like from the failure section switch 210, it is possible to assemble without additional insulation work. Improves insulation while simplifying the structure of the connections

When the power receiving part and the transformer are electrically connected to each other through the insulating bushing 570 provided in the separating plate, the insulating oil on both sides of the separating plate is completely separated.

The present invention having such a configuration is connected to the secondary section of the fault section switch 210, the fault section switch 210 is connected to the primary side of the power supply, the fuse 250 to prevent the accident spread as a shear at the time of the load stage accident The other end is connected to the secondary side of the failure section switch 210 and the primary side of the fuse 250, and the other end is supplied to the arrester 270 grounded to the outside of the power receiving device case 110.

In addition, the transformer transformer current transformer 230 is connected to the secondary side of the fault section switch 210 and the fuse 250 is connected to the primary side of the transformer unit 100 to measure the amount of power.

According to the present invention, the transformer 231 and transformer 233 of the transformer transformer current transformer 230, the fixed terminal 211 and the switch 213 and the movable terminal 215 of the fault section switch 210 is filled with insulating oil. When installed inside the power receiving device case 110 is exposed to the insulating oil 300 it is not necessary to have a case for filling a separate insulating oil and insulating oil.

In addition, the terminal of the transformer transformer current transformer is exposed to the insulating oil inside the transformer casing to be excellent in safety.

In addition, the fuse 250 is exposed by the disassembling of the cover 113 provided on the upper portion of the transformer casing 110 so that it can be easily replaced from the outside of the transformer casing.

In addition, the handle 217 for manually operating the failure section switch 210 is exposed to the outside of the faucet device case 110 to be easily manipulated from the outside, the failure section switch 210 and the instrument Control the transformer current transformer 230 or the amount of power supplied can be confirmed from the outside by the meter box or controller.

In addition, the overload is blocked through the vacuum circuit breaker 170 installed outside the space S or the power receiving device case 110.

At this time, the vacuum circuit breaker 170 may also be installed to be in contact with the insulating oil 300, in this case to solve the problem of having to provide a separate insulating oil for insulation.

In addition, the fault breaker switch 210, the transformer transformer current transformer 230, and the vacuum circuit breaker 170 are each supported by the insulating unit 180, which is an insulator provided inside the power receiving device case 110, and electrically By insulated, it is to prevent safety accidents due to high pressure.

100 ... Transformer 110 ... Receiver Case
113 Cover 170 Vacuum circuit breaker
210 ... Fault section switchgear 230 ... Transformer transformer
250 ... fuse 300 ... insulating oil

Claims (4)

Faucet part consisting of breaker breaker, transformer transformer and instrument fuse
The transformer unit consisting of a plurality of transformer units are separated through a separator plate in the power receiving device case, and are respectively built
The integrated high voltage receiving device of claim 1, wherein the power receiving part and the transformer part are installed to be separated and insulated through separate insulating oil filled on both sides of the separating plate. According to claim 1, wherein only the internal parts of the fault breaker and the transformer transformer transformer for the instrument is disposed in the space of the power receiving device case, the fuse connected to the fault breaker switch is replaced through the opening of the cover provided in the power receiver device case. Integral high-voltage power receiving device, characterized in that installed so far. According to claim 1, wherein the plurality of power receiving device case is provided with a power receiving portion and the transformer is built in the inside, respectively, is configured to fill the insulating oil,
Separation plate is installed inside the power receiving device case is filled with insulating oil on both sides, made of any one selected from the configuration in which the power receiving portion and the transformer is built on both sides of the separation plate,
An integrated extra high voltage power receiving device, characterized in that the meter box is connected to the transformer transformer current transformer, the handle and controller connected to the fault section breaker, the vacuum circuit breaker is further connected to the outside of the power receiving device case. The breaker breaker or transformer unit of claim 1, wherein the breaker breaker and the transformer unit are connected to the breaker case in a state where the input / output terminal is insulated through a bushing provided outside of the breaker case. Integral high-voltage power receiving device, characterized in that connected as each.

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