KR100336267B1 - A Hydroelectricity Transformer Having Laminating Structure - Google Patents

Abstract

The present invention is to install the transformers used in the faucet in each case and design them in a laminated structure, thereby simplifying the installation as well as the use of space to a minimum, in particular, to prevent safety accidents in advance, such as in the construction of large apartments The present invention relates to a power receiving transformer having a multi-stage casing structure and an installation method, so that the remaining space can be efficiently used.

It is installed at the top of the bracket located on the lower side of the automatic switchgear for controlling the opening and closing of the main power, the power fuse is installed while maintaining the separation distance so as not to induce the electrical switch to the automatic switchgear and overload generation, and the power fuse One side is connected to the primary side and the other side is configured to include an arrester connected to the ground line, the automatic opening and closing base having a rectangular sealed structure of the upper and lower parts except the bracket;

A transformer base for the improver located below the automatic switching base;

It is characterized in that the load side transformer panel is located on the lower portion of the transformer base for the retrofitters.

Description

Power receiving transformer with multi-stage stacking structure and installation method {A Hydroelectricity Transformer Having Laminating Structure}

The present invention relates to a faucet transformer having a multi-stage casing structure, in particular, by mounting the transformers used in the faucet in each case and designing them in a laminated structure, it is easy to install and reduce the use of space to a minimum It relates to a power receiving transformer having a multi-stage casing laminated structure characterized in that the remaining space can be efficiently used when applied to large construction, such as construction sites.

In general, collective power demand sources such as schools, buildings, apartment complexes, factories, etc., each have a water substation facility to obtain the necessary power.

These substation facilities will include transformers, switches and other safety devices to receive the extra high voltage supplied from the substation and convert it to a suitable low voltage commercial voltage.

1 is a first embodiment of a conventional packaged water substation facility, Figure 2 is a second embodiment of a package water substation of a conventional water substation facility, Figure 3 is an electrical circuit diagram of a conventional water substation device. to be.

As shown, the extra-high voltage of three-phase 22,900V input through the high-voltage line 2 passes through a failure section automatic section switch (ASS) 4 and then grounds one side through the high-voltage line 6. (8) and the power fuse (10) to be drawn in.

Three power fuses 10 are installed in sets of three RST lines of a three-phase input.

Install the instrument transformer (MOF: Metering Out Fit, 12) in the three-phase line of the extra-high voltage through the power fuse 10 to connect to pick up the voltage and current for measuring the amount of power used,

The voltage and current values detected by the instrument transformer 12 are connected to be applied to a voltmeter and an ammeter installed in the power meter 14.

On the other hand, for each phase, the special high voltage through the power fuse 10 is input to the input terminal of the special high voltage of the △ connection method of the high voltage transformer 18 through the high voltage line 16 to the low voltage terminal of the secondary side with a low voltage of the Y connection method. The low voltage shown on the secondary low voltage terminal of the high voltage transformer 18 is connected to the load 22 through a high speed circuit breaker (MCCB) of 4 terminals.

When the three-phase high voltage up to 22,900V is supplied from the substation to the substation, the high voltage is applied to the high voltage inlet terminal of the fault switchgear with the ASS operating lever along the high voltage line. .

This fault zone automatic switch selects one of the spacing line (or offline) and the extra-high pressure inlet line by the operation of the ASS operating lever.

The extra high pressure line selected by the ASS operating lever is displayed at the high voltage withdrawing terminal of the failure section automatic switchgear, and the extra high pressure is applied to the arrester and the power fuse along the high voltage line.

That is, the fault section automatic switchgear which is arranged in the upper part of the case and forms a stacking structure with the high voltage transformer is configured to supply a high pressure to the high voltage transformer and the current transformer through each of the phase arresters and power fuses of which one side is grounded. Will be authorized.

The power fuse is a silicon fuse filled with an element and silicon anti-corrosion agent in a sealed fuse barrel to generate a very high arc resistance to cut off the fault current in a short time.

However, in the conventional water substation facilities, when the high voltage switch devices and related instruments are arranged around a large transformer whose power consumption is determined as a unit, they have been arranged in a flat manner and safety considerations such as an electric shock accident are considered. As a result, sufficient distances between the devices have been maintained even inside the water substation, so that a large installation area is required to install the water substation, and there is a logistical difficulty in transporting and carrying a large weight of the water substation.

That is, in order to install the conventional power receiving transformer system as shown in FIG. 1, it is necessary to work up a column and raise the transformer, so that a lot of working time is required, in particular, there is a high risk of electric shock accident;

The system as shown in FIG. 2 also occupies a lot of space because the faucet-type transformer system is installed in the horizontal direction, and thus encroaches other spaces, thereby causing a problem that acts as an obstacle during the progress of other processes.

The present invention is to solve the above problems, by mounting the automatic switchgear and power metering unit and load-side transformer in a predetermined number of cases suitable for vertical stacking, and installed by stacking, reducing the installation area of the water substation equipment and equipment The purpose is to prevent safety accidents by inserting inside the case.

As a means for achieving the above object,

The present invention is installed on the top of the bracket located on the lower side of the automatic switchgear for controlling the opening and closing of the main power source, the power fuse is installed while maintaining the separation distance so as not to induce the electrical switch to the automatic switchgear and to prevent the occurrence of overload, An automatic opening and closing base having a rectangular sealed structure in which one side is connected to the primary side of the power fuse and the other end is connected to a ground line, and the upper and lower parts are bored except for the bracket;

It is installed on the upper side of the bracket located at the bottom of one side and connected to the secondary side of the automatic fuse-based power fuse through the connection line, and connected with the transformer for improving the load side and the primary side of the transformer for improving the load. It is composed of a transformer fuse to temporarily cut off the power while maintaining a distance so as not to be separated, a rectangular sealed structure of the upper and lower parts except for the bracket, and the transformer base for the improver located in the lower part of the automatic switching base and;

It is installed on the top of the bracket located at the bottom of one side and includes a transformer connected to the transformer-based transformer fuse secondary side and the connection line through the improver, and a low voltage line connected to the secondary side of the transformer to induce power supply and bracket Except for a rectangular sealed structure of the upper and lower portions of the drilled state, it is characterized by consisting of the load side transformer panel located in the lower portion of the transformer base for the improver.

1 is a first embodiment of a conventional power receiving transformer.

Figure 2 is a second embodiment of a conventional power receiving transformer.

3 is a configuration diagram of a conventional power receiving transformer circuit.

Figures 4a, b, c is a first embodiment of the present invention.

5a, b, c are second embodiment of the present invention.

Figure 6a, b, c is a third embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: automatic switching base 110: automatic switch

120: power fuse 130: lightning arrester

140: processing bushing 150: underground line head

200: transformer based on the meter 210: transformer for the meter

220: transformer fuse 300: load side transformer panel

310: load side transformer 320: transformer fuse

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

Figure 4a is a configuration diagram showing a first embodiment of the present invention, Figure 4b is a side view of Figure 4a, Figure 4c is an enclosure configuration diagram of the present invention, as shown,

It is installed at the top of the bracket located at the bottom of one side and the automatic switchgear 110 for controlling the opening and closing of the main power, the automatic switchgear 110 is installed while maintaining the separation distance so as not to induce electrical power and block the occurrence of overload The fuse 120 and the power fuse 120, one side is connected to the primary side and the other side is configured to include an arrester 130 is connected to the ground line, except for the bracket has a rectangular sealed structure of the upper and lower parts are opened Automatic opening and closing base 100 and;

Installed on the top of the bracket located at the bottom of the side is connected to the secondary side of the power fuse 120 of the automatic opening and closing base (100) through the connection line for the transformer transformer 210 for measuring the load power use, and the transformer for the improver It is connected to the primary side of 210, but maintains a distance so as not to induce electrical induction, and comprises a transformer fuse 220 for temporarily shutting off the power, except for the bracket is a rectangular sealed structure of the upper and lower parts are opened The transformer base 200 for the improver is located at the bottom of the automatic opening and closing base 100;

It is installed at the top of the bracket located at the bottom of one side is connected to the transformer 310 and the secondary side of the transformer fuse 220 and the connection line of the transformer base 200 for the retrofitter, and is connected to the secondary side of the transformer 310 It includes a low-pressure line 320 to induce power supply and is a rectangular sealed structure of the upper and lower parts except the bracket, and consists of a load-side transformer panel 300 located in the lower portion of the transformer base for the retrofit.

In the above, 140 is used when connecting the overhead line as the processing bushing, 150 is used when connecting the underground line as the underground head, using the present invention, any one of the overhead line or ground line can be selectively used.

In addition, 230 and 330 are ladders, which are installed in any one side housing selected from the right side or the left side of the retrofit transformer base and the load-side transformer board, and during installation and repair, the workman climbs up using the ladder and the upper enclosure Open the door to work.

In addition, the 340 is a transparent window so that the power consumption can be easily read from the outside.

Looking at the circuit connection configuration of the present invention configured as described above, the extra high pressure of 22,900V drawn along the high voltage line through the high voltage inlet is a high pressure of the fault zone automatic switchgear 110 having an ASS automatic lever for performing the disconnect switch function It is connected to the inlet terminal, and the special high pressure appearing in the high-voltage drawer terminal of the failure section automatic switch 110 is applied to the power fuse 120 along the high-voltage line, the high-voltage component through the power fuse is a high-voltage cable It is connected to be applied to the power meter 210 through the furnace, and the high pressure drawn along the high voltage line from the power meter is connected to the high voltage terminal of the load-side transformer (310).

The greatest feature of the present invention made as described above is the power transformer of the present invention is the transformer transformer panel 200 is stacked on top of the automatic switching base (100), the load transformer panel (top) on the instrument transformer panel 200 ( 300 is laminated | stacked, respectively.

That is, the present invention is characterized in that the transformer used in the faucet-type transformer system has a configuration to be laminated after each built in the enclosure according to the intended use so that the work is completed by assembly in the field after pre-fabrication in the factory.

This is because the conventional faucet-type transformer system is installed after the power poles are set up high, the cost of additional restraint increases, and the labor cost must be mobilized. There are various problems, such as the risk of damage, but if you use the device of the present invention, the transformer is mounted on a case-by-case basis and then assembled and completed in the field so that the work is easily progressed and there are no risk factors such as falling accidents. .

In addition, in order to install a conventional faucet-type transformer system, it takes a lot of work time to raise the transformer and work to raise the transformer, but when using the present invention, after the transformer is built in the case in advance, the construction site is completed only by assembly. Because two workers can complete the work in about 4 hours, the work speed is fast and the cost reduction is 20% effective on the existing faucet construction cost.

In addition, the use of the present invention prevents the occurrence of algae and luggage falling accidents because the faucet installation is kept in a completely closed state to provide an advantage that can be blocked in advance due to power failure.

That is, in the conventional faucet, when a bird such as a magpie installs a tree branch to install a tree, the conductive metals are placed to be overloaded due to a short circuit, which may cause an electrostatic accident. If a foreign material infiltrated or a conductive material contained in foreign matter such as yellow sand accumulated in the faucet facility and rained, it could cause a short accident.

However, when the present invention is used, all the faucet facilities are kept in a sealed state inside the case, and thus, it is possible to prevent damage caused by algae, and also to prevent damage caused by foreign substances in the air. It will be provided.

In addition, since the present invention is easy to install as well as easy to dismantle, it is possible to withdraw the work using a small number of workers within a short time, thereby satisfying the quick installation and the quick dismantling work at the same time.

In addition, the present invention is stacked in the form of a case to occupy a minimum area to minimize the impact on other construction bar, in particular, conventional transformers for automatic switchgear and instrument transformers and load-side transformers that are essential for the power receiving equipment is arranged on the plane Because it takes up a lot of space, but if stacked vertically as in the present invention occupies a small area that is very advantageous for space use.

This may not cause a big problem even if the land is stretched to a flat surface in a wide country like the United States, but if a long stretch to a flat land in a narrow country like Korea may cause problems in space utilization, as in the present invention. When each transformer is mounted in a case and lifted vertically, it is possible to optimize space utilization naturally.

5A, 5B, and 5C illustrate a second embodiment of the present invention.

It is installed at the top of the bracket located at the bottom of one side and the automatic switchgear 110 for controlling the opening and closing of the main power, the automatic switchgear 110 is installed while maintaining the separation distance so as not to induce electrical power and block the occurrence of overload The fuse 120 and the power fuse 120, one side is connected to the primary side and the other side is configured to include an arrester 130 is connected to the ground line, except for the bracket has a rectangular sealed structure of the upper and lower parts are opened Automatic opening and closing base 100 and;

Installed on the top of the bracket located at the bottom of the side is connected to the secondary side of the power fuse 120 of the automatic opening and closing base (100) through the connection line for the transformer transformer 210 for measuring the load power use, and the transformer for the improver It is configured to include a first transformer fuse 220 and a second transformer fuse 221 of the same function to be connected to the primary side of 210 but maintaining a distance so as not to induce electricity and temporarily cut off power. A transformer closure base 200 for improving, which is a rectangular sealed structure in a state where the upper and lower parts of the bracket are bored except for the bracket;

It is installed on the top of the bracket located at one side lower and the transformer 310 connected to the secondary side of the first transformer fuse 220 and the connection line of the transformer base 200 for the retrofitter, and connected to the secondary side of the transformer power A first load side transformer panel (300) including a low pressure line (320) for guiding a supply and having a rectangular sealed structure having a top and bottom portion except for a bracket, and located below the transformer base for the retrofitter;

The transformer 410 and the transformer 410 which is installed on the upper side of the bracket located at the lower side and connected through the secondary side of the transformer transformer 221 secondary side and the high voltage cable 430 of the transformer base 200 for the retrofit, The second load side includes a low pressure line 420 connected to the secondary side to induce power supply, and has a rectangular sealed structure in a state where the upper and lower portions are bored except for the bracket, and is located below the first load side transformer panel 300. Transformer panel 400 was configured.

In the above, the faucet-type transformer was completed in four stages using the layout structure of the present invention. The internal design is the same as that shown in FIG. 4, and the terminal load side transformer is separated into a first transformer and a second transformer, respectively, which are required for actual use. The voltage can be solved in one device.

In addition, in the present invention as shown in Figure 4c to install a working ladder bar, 230, 330, 430 is a ladder, is installed in any one side housing selected from the right side or left side of the transformer transformer base and the load side transformer panel, installation and At the time of repair, the worker climbed up by using the ladder and opened the enclosure located at the upper part so as to work on the work.

In addition, 340 and 440 are transparent windows so that power consumption can be easily read from the outside.

On the other hand, the present invention is very advantageous in large capacity because the high-pressure vacuum circuit breaker and CT PT which should be in accordance with the electrical regulations requiring a capacity of 1000KVA or more can be used after being stacked in a separate case.

That is, Figure 6a, b, c is a third embodiment of the present invention, is installed on the upper end of the bracket located on one side of the bottom of the automatic switchgear 110 for controlling the opening and closing of the main power, the electrical switchgear 110 Power fuse 120 is installed while maintaining the separation distance so as not to induce and overload generation, and one end is connected to the primary side of the power fuse 120, the other end is connected to the ground line 130 includes an arrester 130 It is configured to, and has an automatic opening and closing base 100 having a rectangular sealed structure of the upper and lower parts except the bracket;

Transformer fuse 510 connected to the secondary side of the power fuse 120 of the automatic opening and closing 100 to control the interruption of the power supply, and connected to the primary side of the transformer fuse 510, but the electrical induction It is connected to the meter transformer 520 and the secondary side of the transformer fuse 510 for measuring the power consumption while maintaining the distance so as not to be spaced apart and maintains the distance so as not to induce electrical instantaneous voltage value It is configured to include a bolt meter transformer 530, and a rectangular sealed structure of the upper and lower parts except the bracket for supporting the transformer 530, the improved side is located on the bottom of the automatic opening and closing base. An electric base 500;

A high voltage current breaker 600 connected to a secondary side of the meter transformer 520 through a connection line and automatically cut off when an abnormality occurs by embedding an overcurrent relay, an overcurrent ground relay, and an overvoltage ground relay;

A fuse 710 connected through an output line of the high voltage current breaker 600 and a high voltage cable 610, a load transformer 720 connected to a secondary side of the fuse 710, and a load transformer It includes a low-pressure line 730 connected to the secondary side to induce power supply, and has a rectangular sealed structure of the upper and lower parts except for the bracket, the load side transformer panel 700 located in the lower part of the transformer base for the retrofitter. It consisted of.

In addition, in the present invention as shown in Figure 4c to install a working ladder bar, 530, 620, 740 is a ladder, installed in any one side housing selected from the right side or left side of the transformer transformer base and the load-side transformer panel, installation and At the time of repair, the worker climbed up by using the ladder and opened the enclosure located at the upper part so as to work on the work.

In addition, the 750 is a transparent window so that the power consumption can be easily read from the outside.

When the present invention is configured as described above, it can be easily used in a power receiving transformer used for a capacity of 1000 KVA or more.

After all, the present invention is to install the transformers used in the faucet in each case and to design them in a laminated structure, the ease of installation as well as the use of space is reduced to a minimum, especially when applied to large constructions, such as apartment construction site efficiently It includes ancillary advantages that make it available and does not interfere with other construction.

As described above, the present invention provides the effect of enabling the size reduction and light weight of the water substation facility by installing and installing the automatic switching unit, the electric power metering unit, and the load-side transformer, respectively, in a predetermined number of cases.

And, although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention.

Accordingly, the appended claims will include such modifications and variations as fall within the spirit of the invention.

Claims (18)

It is installed at the top of the bracket located on the lower side of the automatic switchgear for controlling the opening and closing of the main power, the power fuse is installed while maintaining the separation distance so as not to induce the electrical switch to the automatic switchgear and overload generation, and the power fuse One side is connected to the primary side and the other side is configured to include an arrester connected to the ground line, the automatic opening and closing base having a rectangular sealed structure of the upper and lower parts except the bracket; It is installed on the upper side of the bracket located at the bottom of one side and connected to the secondary side of the automatic fuse-based power fuse through the connection line, and connected with the transformer for improving the load side and the primary side of the transformer for improving the load. It is composed of a transformer fuse to temporarily cut off the power while maintaining a distance so as not to be separated, a rectangular sealed structure of the upper and lower parts except for the bracket, and the transformer base for the improver located in the lower part of the automatic switching base and; It is installed on the top of the bracket located at the bottom of one side and includes a transformer connected to the transformer-based transformer fuse secondary side and the connection line through the improver, and a low voltage line connected to the secondary side of the transformer to induce power supply and bracket A power receiving type transformer having a multi-stage stacking structure, characterized in that the rectangular sealed structure of the upper and lower parts are opened, and consists of a load-side transformer panel positioned below the transformer base for the improver. The method of claim 1, And a ladder mounted on any one side housing selected from the right side or the left side of the transformer transformer base and the load side transformer panel. The method of claim 1, The automatic switch, the transformer for transformers and the transformer for load are transformers having a multi-stage stacking structure, characterized in that they are staggered to the left and right about the central vertical axis of the enclosure. The method of claim 1, The power receiving transformer having a multi-stage stacking structure, characterized in that the transparent window is installed on the upper right side of the load side transformer panel to check the amount of power used. It is installed at the top of the bracket located on the lower side of the automatic switchgear for controlling the opening and closing of the main power, the power fuse is installed while maintaining the separation distance so as not to induce the electrical switch to the automatic switchgear and overload generation, and the power fuse One side is connected to the primary side and the other side is configured to include an arrester connected to the ground line, the automatic opening and closing base having a rectangular sealed structure of the upper and lower parts except the bracket; It is installed on the upper side of the bracket located at the bottom of one side and connected to the secondary side of the automatic fuse-based power fuse through the connection line, and connected with the transformer for improving the load side and the primary side of the transformer for improving the load. It comprises a first transformer fuse and a second transformer fuse of the same function to temporarily cut off the power while maintaining a distance so as not to be separated from each other, and has a rectangular sealed structure of the upper and lower parts except for the bracket, and the automatic switching base A transformer half for the improver located in the lower portion of the transformer; It is installed on the top of the bracket located at the bottom of one side and includes a transformer connected to the secondary side of the transformer-based first transformer fuse through a connection line, and a low voltage line connected to the secondary side of the transformer to induce power supply; A first load side transformer panel disposed at a lower portion of the transformer base for the improver, the rectangular seal structure having a top and bottom portions except for a bracket; It is installed on the top of the bracket located at the bottom of one side and includes a transformer connected to the transformer-based second transformer fuse secondary side and a high voltage cable, and a low voltage line connected to the secondary side of the transformer to induce power supply And a rectangular sealed structure having a top and bottom portion except for the bracket, and having a second load side transformer panel positioned below the first load side transformer panel. The method of claim 5, And a ladder provided in any one side housing selected from the right side or the left side of the retrofit transformer base, the first load side transformer board, and the second load side transformer board. The method of claim 5, The power switch transformer having a multi-stage stacking structure, characterized in that the automatic switch and the retrofit transformer, the first load transformer and the second load transformer are staggered to the left and right about the central vertical axis of the enclosure. It is installed at the top of the bracket located on the lower side of the automatic switchgear for controlling the opening and closing of the main power, the power fuse is installed while maintaining the separation distance so as not to induce the electrical switch to the automatic switchgear and overload generation, and the power fuse One side is connected to the primary side and the other side is configured to include an arrester connected to the ground line, the automatic opening and closing base having a rectangular sealed structure of the upper and lower parts except the bracket; A transformer fuse which is connected to the secondary side of the automatic switch-based power fuse through a connection line to control the interruption of the power supply, and is connected to the primary side of the transformer fuse but maintains a distance separated from each other so as not to induce electricity. A meter transformer for measurement and a volt meter transformer connected to the secondary side of the transformer fuse to maintain a spaced distance so as not to induce electricity and displaying an instantaneous voltage value. A transformer closure base for improvement, which is a rectangular sealed structure in a state where the upper and lower parts are bored except for a bracket, and is located below the automatic opening and closing base; A high voltage current circuit breaker connected to the secondary side of the transformer for metering and automatically shut off when an abnormality occurs by embedding an overcurrent relay, an overcurrent ground relay, and an overvoltage ground relay; A fuse connected through an output line of the high voltage current breaker and a high voltage cable, a load transformer connected to a secondary side of the fuse, and a low voltage line connected to a secondary side of the load transformer to induce power supply; And a rectangular sealed structure having a top and bottom portion except for a bracket, and having a load side transformer panel positioned below the transformer base for the retrofitter. The method of claim 8, A power transformer having a multi-stage stacking structure, characterized in that the ladder is positioned on any one side housing selected from the right side or the left side of the transformer base, the high voltage current circuit breaker, and the second load side transformer panel. The method according to any one of claims 1, 5 and 8, The automatic opening and closing base is a power receiving transformer having a multi-stage stacking structure, characterized in that it optionally comprises any one of the processing bushing or underground head. A load-side transformer having a case of a rectangular sealed structure with upper and lower parts installed therein, a bracket installed at a lower side of one side of the case, a transformer installed at an upper portion thereof, and a low pressure line for inducing power supply to a secondary side of the transformer. A first step of fixing the halves to the ground; It is provided with a case of a rectangular sealed structure with the upper and lower parts drilled, a bracket is installed at the lower side of one side of the case, a transformer for the improver is installed at the upper part thereof, The transformer is connected to the primary side of the transformer for improving, but the transformer fuse is installed to maintain the distance so as not to induce electricity and temporarily cut off the power. A second step of connecting the primary side of the transformer and the secondary side of the transformer fuse; It is provided with a case of a rectangular sealed structure with an upper and a lower part, and a bracket is installed at the bottom of one side of the case, and an automatic switch is installed at the upper portion thereof, and the automatic switch is installed while maintaining a separation distance so as not to induce electricity. After fixing the completed automatic switching base on the upper side of the transformer panel, including a power fuse for blocking the power fuse, one end is connected to the primary side of the power fuse and the other side is connected to the ground line, the fuse of the transformer for the improver A method for installing a power receiving transformer having a multi-stage stacking structure, comprising a third step of connecting a primary side and a secondary side of a power fuse. The method of claim 11, And a step of installing a ladder on any one side housing selected from the right side or the left side of the transformer substation base and the load side transformer panel. The method of claim 11, The automatic switchgear and the transformer for improved transformer and the transformer for load are installed on the faucet type transformer having a multi-stage stacking structure, characterized in that the staggered installation respectively to the left and right around the central vertical axis of the enclosure. Comprising a case of a rectangular sealed structure with a top and bottom opening, a bracket is installed on the lower side of one side of the case, a transformer is installed on the upper portion, and a low pressure line for inducing power supply to the secondary side of the transformer is completed A first step of fixing the load side transformer board to the ground; Comprising a case of a rectangular sealed structure with a top and bottom opening, the bracket is installed at the bottom of one side of the case, the transformer is installed on the upper portion, and the low pressure line is installed on the secondary side of the transformer to install a low pressure line A second step of fixing the load side transformer board over the first load side transformer board; It is provided with a case of a rectangular sealed structure with the upper and lower parts, and the bracket is installed on the lower side of one side of the case, the transformer for the retrofitter is installed on the upper part, and connected to the primary side of the transformer for the retrofitter but spaced apart so as not to be inductive After the transformer fuse is installed to maintain the distance and temporarily cut off the power, the completed transformer is fixed to the upper part of the load transformer panel. Then, the primary side of the first load transformer and the secondary side of the first transformer fuse are coaxial cables. A third step of connecting the first side of the second load transformer and the second side of the second transformer fuse through a connection line; It is provided with a case of a rectangular sealed structure with an upper and a lower part, and a bracket is installed at the bottom of one side of the case, and an automatic switch is installed at the upper portion thereof, and the automatic switch is installed while maintaining a separation distance so as not to induce electricity. After fixing the completed automatic switching base on the upper side of the transformer panel, including a power fuse for blocking the power fuse, one end is connected to the primary side of the power fuse and the other side is connected to the ground line, the fuse of the transformer for the improver 4. A method for installing a power receiving transformer having a multi-stage stacking structure, comprising a fourth step of connecting a primary side and a secondary side of a power fuse. The method of claim 14, A transformer having a multi-stage stacking structure, further comprising the step of installing a ladder in any one side housing selected from the right side or the left side of the retrofit transformer base, the first load side transformer board, and the second load side transformer board. How to install. The method of claim 14, The automatic switchgear and the retrofit transformer, the first load transformer and the second load transformer is a power transformer having a multi-stage stacking structure, characterized in that they are staggered to the left and right about the central vertical axis of the enclosure. It is provided with a case of a rectangular sealed structure with a top and bottom, a bracket is installed at the bottom of one side of the case, a load transformer is installed on the upper part, and a low pressure line is installed to induce power supply to the secondary side of the load transformer. A first step of connecting the primary side of the transformer and the primary side of the transformer fuse to fix the completed load side transformer panel to the ground; It is provided with a case of a rectangular sealed structure with a top and bottom opening, a bracket is installed at the bottom of one side of the case, connected to the secondary side of the transformer fuse of the load-side transformer by a coaxial cable, built-in overcurrent relay, overcurrent ground relay and overvoltage ground relay A second step of installing a high voltage current circuit breaker that is automatically cut off when an abnormality occurs and fixing the upper portion of the load side transformer panel; It is provided with a case of a rectangular sealed structure with an upper and a lower part, and brackets are installed at both lower ends of the case, and a meter transformer and a bolt meter transformer are installed at the upper part of the bracket, and a primary side of the meter transformer and a fuse of the transformer are installed. A third step of connecting the primary side and connecting the primary side of the transformer for voltmeter and the secondary side of the transformer fuse to fix the transformer base for the retrofitter and to fix the upper portion of the high voltage current breaker; It is provided with a case of a rectangular sealed structure with a top and bottom opening, a bracket is installed at the bottom of one side of the case, an automatic switch is installed on the upper part thereof, and is installed while maintaining the separation distance so as not to induce electricity to the automatic switch. After fixing the completed automatic switching base on the upper side of the transformer panel, including a power fuse for blocking the power fuse, one end is connected to the primary side of the power fuse and the other side is connected to the ground line, the fuse of the transformer for the improver A method for installing a power receiving transformer having a multi-stage stacking structure, comprising a fourth step of connecting to a primary side. The method of claim 17, A method for installing a power receiver transformer having a multi-stage stacking structure, characterized in that a ladder is installed on any one side housing selected from the right side or the left side of the transformer transformer base, the high voltage current circuit breaker, and the second load side transformer panel.