KR20200006777A - Switchboard having earthquake-proof device - Google Patents

Abstract

The present invention relates to a prefabricated distribution board with an earthquake-proof function (high and low voltage distribution boards, MCC, panel board, ESS), which increases the rigidity of an enclosure main body by additionally configuring a corner reinforcing member having tension and cushioning functions in the corner portion of the enclosure main body installed in a prefabricated type, and minimizes the transmission of vibration transmitted from the outside of the enclosure main body. The present invention may comprise: an enclosure main body comprising an upper horizontal frame which has an openable door on one side surface and forms a roof surface to have a hexahedral shape, a vertical frame which is connected in the vertical direction to the lower side of the upper horizontal frame, and a lower horizontal frame which is coupled to a lower side of the vertical frame and is disposed to face the upper horizontal frame; and a corner reinforcing member coupled to a portion where the upper horizontal frame and the vertical frame are connected or a portion where the vertical frame and the lower horizontal frame are connected in order to have tension and cushioning functions to increase the rigidity of the enclosure main body and mitigate external shocks.

Description

Prefabricated switchgear with seismic function (high and low voltage switchgear, MCC, distribution board, ESS) {SWITCHBOARD HAVING EARTHQUAKE-PROOF DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefabricated switchgear having a seismic function (high and low voltage switchgear, MCC, distribution board, ESS), and in particular, a prefabricated switchgear (high and low voltage switchgear) having a seismic function suitable for a prefabricated structure by shielding vibration generated by external force. , MCC, distribution panel, and ESS).

In general, the switchgear is responsible for receiving power from a power provider and supplying power to equipment requiring power consumption, and constructing related facilities of a general substation with power receiving equipment and power distribution equipment.

For example, the inside of the switchgear is divided into a special high voltage side and a low voltage side, and a power receiving facility receiving electricity from a power provider KEPCO, and the electricity received through the power receiving facility to change the voltage or capacity required by the user. It is equipped with a distribution system equipped with a circuit breaker that protects the entire facility from accidents such as transformers and power failures.

The switchgear used here is continuous and uniform with the main body of the switchgear, which is equipped with an open switchgear door for limiting direct contact with the outside and considering the safety of the electric shock and fire of the human body during the process of use. In consideration of the reliability of a supply voltage, various protection devices such as a circuit breaker and an arrester are installed in the main body.

In addition, the switchgear is connected to an inverter that automatically manages the DC voltage generated from the solar connection panel by converting it into AC voltage.

The inverter is provided with a PCB, a reactor, a capacitor, a measurement control module, an SMPS, an EMI filter, and a transformer for supplying power by converting an AC voltage.

In addition, the connection panel includes an input unit for outputting a DC voltage generated from sunlight in a series connection method, an output unit connected in series with an input unit to output a DC voltage output from the input unit, and an output current value and voltage. And a control unit for detecting and monitoring a value.

However, the conventional switchgear has a problem that the power receiving facility and the distribution facility installed inside the enclosure body are vulnerable to vibration transmitted from the outside.

In addition, there is a limit in shielding the vibration only by the rigidity of the enclosure body and protecting the power receiving equipment and the power distribution equipment.

[Patent Document 1] Registered Patent Publication No. 10-0746286 (2007. 08. 13.)

[Patent Document 2] Japanese Patent Application Laid-Open No. 2002-281616 (2002. 09. 27.)

The present invention is to solve the above problems, more specifically, to minimize the vibration transmitted from the outside, and to implement a zero potential by measuring the leakage voltage of the enclosure having an earthquake-resistant function to prevent an electric shock accident in advance The purpose is to provide a prefabricated switchgear (high and low voltage switchgear, MCC, distribution panel, ESS).

In addition, the present invention further comprises a corner reinforcing member having a tension and cushioning function in the corner portion of the enclosure body that is prefabricated to increase the rigidity of the enclosure body and minimize the transmission of vibration transmitted from the outside of the enclosure body. Another purpose is to provide a prefabricated switchgear (high and low voltage switchgear, MCC, distribution board, ESS) having a seismic function.

The prefabricated switchgear (high and low voltage switchgear, MCC, distribution board, ESS) having a seismic function according to the present invention for achieving the above object is formed on the roof surface so that the opening and closing door is provided on one side and has a hexahedral shape. An enclosure main body having an upper horizontal frame, a vertical frame connected to a lower side of the upper horizontal frame in a vertical direction, and a lower horizontal frame coupled to a lower side of the vertical frame and disposed to face the upper horizontal frame; Corners having tension and cushioning functions to increase rigidity of the enclosure body and to mitigate external shocks by being coupled to a portion where the upper horizontal frame and the vertical frame are connected or a portion where the vertical frame and the lower horizontal frame are connected. Characterized in that it comprises a reinforcing member.

The switchboard having a seismic function according to the embodiment of the present invention (high and low voltage switchboard, MCC, distribution board, ESS) has the following effects.

First, it is possible to minimize the damage of the power receiving equipment and distribution equipment due to the vibration transmitted from the outside, it is possible to reduce the manufacturing cost and time.

Second, by measuring and managing the leakage voltage of the enclosure according to the earthquake in real time, it is possible to prevent the electric shock accident by realizing the zero potential.

Third, it is possible to further increase the rigidity of the enclosure body by minimizing the tension and cushioning corner pieces in the corner portion of the enclosure body that is installed prefabricated, and to minimize the transmission of vibration transmitted from the outside of the enclosure body.

1 is a front view schematically showing the appearance of a switchgear (high and low voltage switchgear, MCC, distribution panel, ESS) having a seismic function according to an embodiment of the present invention.
FIG. 2 is a side view schematically showing the external appearance of a switchgear (high and low voltage switchgear, MCC, distribution board, ESS) having a seismic function of FIG.
3 is a partially enlarged view showing the earthquake-resistant part of FIG.
4 is a partially enlarged view showing a corner reinforcing member of FIG.
5 is an enlarged view showing another embodiment of the corner reinforcing member shown in FIG.
Figure 6 is an enlarged view showing another embodiment of the corner reinforcing member shown in FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be interpreted as being limited to ordinary or dictionary meanings, and the inventors properly define the concept of terms in order to explain their own invention in the best way. Based on the principle that it can, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a front view schematically showing the external appearance of a switchboard 100 (high and low voltage switchboard, MCC, distribution panel, ESS) having a seismic function according to an embodiment of the present invention, Figure 2 is a switchboard having the seismic function of Figure 1 It is a side view which shows the outline of (100) (high and low voltage switchgear, MCC, distribution board, ESS).

As shown in FIGS. 1 and 2, the switchboard 100 having a seismic function according to the present invention (high and low voltage switchboard, MCC, distribution board, and ESS) is provided with an openable and closed door 111 on one side and a hexahedron shape. An upper horizontal frame 112 forming a roof surface to have an outer shape of the upper surface, a vertical frame 113 vertically connected to a lower side of the upper horizontal frame 112, and coupled to a lower side of the vertical frame 113. An enclosure main body 110 having a lower horizontal frame 114 disposed to face the upper horizontal frame 112, and a support frame installed on a lower surface of the enclosure main body 110 to support the enclosure main body 110. Reinforcement frame 130 is coupled to the side of the support frame 120, and having a predetermined gap in the height direction of the enclosure body 110, while having a predetermined gap with the side of the enclosure body (110) And, the enclosure body 110 and the reinforcement frame 130 And a ball type seismic unit 140 inserted between the enclosure body 110 and the vibration shielding applied to the enclosure body 110 in a horizontal direction, and has a predetermined distance between the enclosure body 110 and the support frame 120. A plurality of dustproof units 150 and the upper horizontal frame 112 and the vertical frame 113 is connected to the portion or the vertical frame 113 and the lower horizontal frame 114 is coupled to the combination Corner reinforcement member 190 having tension and cushioning function to increase the rigidity of the enclosure body and to mitigate external shocks, and installed on and connected to each surface and N phases of the enclosure body 110, A plurality of leakage voltage measuring unit 160 for measuring the leakage voltage of the enclosure body 110 and the door of the enclosure main body 110 receives the leakage voltage measured by the leakage voltage measuring unit 160 Analyzes and generates trip signal of breaker It is configured to include a state control unit 170 and a state indicator 180 that is configured on one surface of the door of the enclosure main body 110 to be turned on or flashing according to the result of the earthquake or the state control unit 170.

Here, the complex main body 200 for detecting vibration, tilt and arc sensor is configured in the enclosure main body 110 to detect the tilt and arc of the enclosure main body 110 including an earthquake and the result is the state control unit. (170).

The door 111 is provided in the lateral direction of the enclosure body 110 to selectively open the space.

A plurality of doors 111 are provided to open or close the plurality of spaces in whole or in part, and an installation and maintenance of an inverter module, a power distribution module, and a transformer unit are made through the door 111.

Although not shown in the drawing, the power distribution module is provided with a power receiving unit that receives power from the outside, and an insulator is provided at an inner end of the power receiving unit, and an end of the insulator transmits electricity supplied from the outside. Busbar busbars with a large cross-sectional area or contact area are arranged to prevent the voltage from concentrating on the part.

The bus bar is preferably a C-shaped busbar having one cross section formed in a substantially 'C' shape.

The door 111 may be formed in a casement or sliding door structure, it will be described in an embodiment that the door switchboard 100 according to the present invention is installed in a casement structure.

In this case, a viewing window (not shown) is provided on the door 111 so that an operator can check the inside of the enclosure body 110.

The viewing window may be made of transparent glass or synthetic plastic material to visually check the inside of the enclosure main body 110, and may be formed to open and close the viewing window so that a part of an operator's hand or upper body may pass through. .

In addition, the enclosure main body 110 includes a display unit indicating the electricity generation information and the presence or absence of electricity input and output from the inverter module and the power distribution module.

The display unit indicates the current diagnosis situation, power generation amount, insolation amount, network environment setting, power generation efficiency, etc. of the inverter module and the power distribution module, and is preferably disposed on the door 111 to correspond to the eye level of the operator.

Inside the enclosure body 110, one or a plurality of partition walls are provided to allow the inverter module, the power distribution module, and the transformer to be positioned so as to be divided into a plurality of spaces so as to be separated in a horizontal or vertical direction.

In addition, inside the plurality of spaces, basic components such as a PCB, a circuit breaker, a lightning arrester, a fuse, and a switch, and a configuration (not shown) according to heat radiation and moisture proof are additionally provided.

The switchgear 100 (high and low voltage switchgear, MCC, distribution panel, ESS) is one side is connected to the inverter module, the other side is connected to the photovoltaic device, electrical energy provided from the photovoltaic device It may include a connection panel for outputting a signal.

The inverter module has a function of converting a DC voltage output from the connection panel into an AC voltage.

In this case, the inverter module includes essential components (not shown), such as a PCB, a reactor, a capacitor, a measurement control module, and an EMI filter.

The water distribution module has a function of distributing the AC voltage provided from the inverter module to output to the outside.

At this time, the transformer is interposed between the inverter module and the power distribution module.

Therefore, the transformer has a function of boosting the voltage required by the inverter module and the power distribution module.

As a result, the inverter module and the power distribution module can be shared by the transformer unit, so that the efficiency of the system can be increased and the manufacturing cost and time can be reduced, compared to the transformer module and the power distribution module. Can be.

The lower part of the enclosure body 110 is provided with a vent 115 so that external natural air can be smoothly introduced into the interior. At this time, the vent 115 is attached to the cover on the four sides to prevent small insects from invading.

The reinforcement frame 130 is a horizontal reinforcement frame 132 connecting the upper side of the vertical reinforcement frame 131 and the vertical reinforcement frame 131 is coupled to the side of the support frame 120 at a constant interval, and It includes an inclined reinforcement frame 133 disposed on both sides of the vertical reinforcement frame 131 to support the vertical reinforcement frame 131. At this time, the interval of the vertical reinforcement frame 131 can be freely adjusted according to the size of the enclosure body (110). That is, the interval of the vertical reinforcement frame 131 can be adjusted arbitrarily.

The anti-vibration unit 150 serves to absorb the vibration applied to the upper and lower sides of the enclosure main body 110, in the embodiment of the present invention has been described as an example of the anti-vibration rubber, but not limited to the anti-vibration rubber and In addition to stacking a plurality of iron plates between the anti-vibration rubber, it is possible to configure the anti-vibration unit as well as to adopt the anti-vibration unit according to another design.

The leakage voltage measuring unit 160 is disposed in a plurality with a predetermined interval so as to contact the surface of the enclosure body 110 made of a metal material, each enclosure body 110 measured through the leakage voltage measuring unit 160 Leakage voltage for is input to the state controller 150 by wire.

The state controller 150 receives the leakage voltage information measured by the plurality of leakage voltage measuring units 160 and finds a portion where the leakage voltage is relatively high, and delivers it to the administrator to directly diagnose the abnormality or schedule If it is determined that the voltage is abnormal, a control signal for tripping the main circuit breaker is output.

The lamp of the status indicator 180 is composed of three-color LEDs of red, green, and blue, and converts from red to yellow, yellow to blue according to a state by combining light of three-color LEDs under the control of the state controller 170. Produce lighting. In addition, in order to propagate a more urgent situation, the status indicator 180 may flash.

In addition, although the status indicator 180 is not shown, a built-in speaker may generate a warning sound when an emergency occurs.

3 is a partially enlarged view illustrating the seismic unit 140 of FIG. 2.

As shown in FIG. 3, the seismic unit 140 provides a function of preventing the vibration applied to the enclosure body 110 from being transmitted to the inside of the enclosure body 110.

The seismic unit 140 is an anti-vibration rubber 141 is coupled to the outer surface of the enclosure body 110, the first coupling plate 142 is coupled to the inner surface of the reinforcing frame 130, and the first It includes a dustproof member 143, one side is coupled to the coupling plate 142, and a second coupling plate 144 coupled to the other side of the dustproof member 143.

The dustproof member 143 is formed of an elastic material that can elastically increase or decrease the distance between the first coupling plate 142 and the second coupling plate 144. Accordingly, the dustproof member 143 may selectively include at least one or more of a coil spring having elasticity, a leaf spring, a synthetic rubber resin, a synthetic rubber having an air layer therein, and a magnetic steel having repulsive force.

Since the first and second coupling plates 142 and 144 are made of metal, only the first coupling plate 142 is coupled to the reinforcing frame 130 when the seismic unit 140 is configured. The coupling plate 144 is not coupled to the outer surface of the enclosure body 110 and has a constant gap. In this case, the anti-vibration rubber 141 is formed on the outer surface of the enclosure main body 110 to which the second coupling plate 144 is in contact so that the second coupling plate 144 does not directly contact the enclosure main body 110.

The seismic unit 140 is interposed between the reinforcement frame 130 spaced apart from the outer surface of the enclosure main body 110 by a set interval, and between the enclosure body 110 and the reinforcement frame 130 on the set interval. It is arranged in the upper and lower corner portions, and the central portion of both sides corners, respectively.

Here, the set interval may increase or decrease as the distance between the enclosure body 110 and the reinforcement frame 130 changes due to vibration applied from the outside. The seismic part 140 is installed at the set interval between the enclosure body 110 and the reinforcement frame 130 but provides a function of elastically oscillating vibration in the horizontal direction and ultimately maintaining the set interval.

Then, the seismic part 140 of one side arranged in the vibration direction is compressed to reduce the distance between the first coupling plate 142 and the second coupling plate 144, and the seismic part 140 of the other side is The tension is increased so that the distance between the other first bonding plate 142 and the second bonding plate 144 increases.

In addition, the seismic part 140 is moved to the original position from the outside of the enclosure body 110 when the vibration stops.

Accordingly, the enclosure body 110 may minimize the vibration transmitted from the enclosure body 110 by the seismic unit 140 to protect components disposed therein.

4 is an enlarged view showing the corner reinforcing member shown in FIG. 1 in more detail.

As shown in FIG. 4, the corner reinforcing member 190 includes at least two leaf springs 191 configured to have a predetermined gap at a portion where the upper horizontal frame 112 and the vertical frame 113 are connected, and While maintaining a constant spacing of the leaf spring 191, between the gap holding member 192, the plate spring 191 is freely spaced between, and fixed to one side of the leaf spring 191 to the upper horizontal frame 112 The first fixing member 193 and the second fixing member 194 for fixing the other side of the leaf spring 191 to the vertical frame 113.

It further comprises a dustproof rubber configured between the bonding surface of the leaf spring 191.

Here, the gap retaining member 192 is provided with a rubber packing 195 on the outside in contact with the leaf spring 191, the first and second fixing members (193, 194) through the bolt and nut Both sides of the leaf spring 191 is fixed to the upper horizontal frame 112 and the vertical frame 113, respectively.

In addition, the gap retaining member 192 is fastened through a bolt and a nut on the outside of the leaf spring 191 while serving to maintain the leaf spring 191 to have a constant gap.

The corner reinforcing member 190 configured as described above is configured at a portion where the upper horizontal frame 112 and the vertical frame 113 cross when the vibration is applied to the enclosure body 110 for earthquakes or other factors. The spring 191 is quickly absorbed against the impact between the gap holding member 192 and the plurality of leaf springs 191 resists and quickly restores the shape to the reaction force, thereby preventing damage to the enclosure body 110 in advance. It can prevent.

In addition, since the corner reinforcing member 190 is installed at the corner, that is, the corner portion of the enclosure main body 110, no maintenance is required, and it is easily installed as necessary by adjusting the hardness, thickness, and number of leaf springs 191. The enclosure body 110 can be supported more firmly.

The leaf spring 191 is made of steel of a metal material, the leaf spring 191 is installed in an arch shape. At this time, the leaf springs 191 are each curved in an arc shape having different curvatures, and the curved direction is the same so that a crescent space portion is formed therebetween.

5 is an enlarged view showing another embodiment of the corner reinforcing member shown in FIG. 1.

As shown in FIG. 5, the corner reinforcing member 190 includes at least two leaf springs 191 configured to have a predetermined gap at a portion where the upper horizontal frame 112 and the vertical frame 113 are connected, and While maintaining a constant spacing of the leaf spring 191, between the gap holding member 192, the plate spring 191 is freely spaced between, and fixed to one side of the leaf spring 191 to the upper horizontal frame 112 A first fixing member 193, a second fixing member 194 for fixing the other side of the leaf spring 191 to the vertical frame 113, and a gap retaining member 192 between the leaf spring 191. It includes a spring 196 is inserted into the configuration.

That is, the corner reinforcement member 190 and the other portion of the leaf spring 191 is configured in a triple structure, except for inserting the spring 196 for the buffer to the gap holding member 192. Have the same configuration.

Here, the gap retaining member 192 is provided with a rubber packing 195 on the outside in contact with the leaf spring 191, the first and second fixing members (193, 194) through the bolt and nut Both sides of the leaf spring 191 is fixed to the upper horizontal frame 112 and the vertical frame 113, respectively.

In addition, the gap retaining member 192 is fastened through a bolt and a nut on the outside of the leaf spring 191 while serving to maintain the leaf spring 191 to have a constant gap.

The corner reinforcing member 190 configured as described above is configured at a portion where the upper horizontal frame 112 and the vertical frame 113 cross when the vibration is applied to the enclosure body 110 for earthquakes or other factors. The spring 196 together with the spring 191 may serve to relieve vibration by contracting or relaxing between the space maintaining members 192.

FIG. 6 is an enlarged view showing another embodiment of the corner reinforcing member shown in FIG. 1.

As shown in FIG. 6, the corner reinforcement member 190 has a constant gap in a portion where the vertical frame 113 is connected between the upper horizontal frame 112 and the upper horizontal frame 112 which are disposed perpendicular to each other. At least two or more leaf springs 191 and the spacing member 192, which is spaced between the leaf springs 191 while maintaining a constant spacing of the leaf springs 191, and the leaf springs ( The first fixing member 193 for fixing one side of the 191 to the upper horizontal frame 112, The second fixing member 194 for fixing the other side of the leaf spring 191 to the vertical frame 113 and It includes a spring 196 is inserted into the gap holding member 192 between the leaf spring 191.

That is, the corner reinforcement member 190 and the other portion of the leaf spring 191 is configured in a triple structure, except for inserting the spring 196 for the buffer to the gap holding member 192. Have the same configuration.

Here, the gap retaining member 192 is provided with a rubber packing 195 on the outside in contact with the leaf spring 191, the first and second fixing members (193, 194) through the bolt and nut Both sides of the leaf spring 191 is fixed to the upper horizontal frame 112 and the vertical frame 113, respectively.

In addition, the gap retaining member 192 is fastened through a bolt and a nut on the outside of the leaf spring 191 while serving to maintain the leaf spring 191 to have a constant gap.

The corner reinforcing member 190 configured as described above is configured at a portion where the upper horizontal frame 112 and the vertical frame 113 cross when the vibration is applied to the enclosure body 110 for earthquakes or other factors. The spring 196 together with the spring 191 may serve to relieve vibration by contracting or relaxing between the space maintaining members 192.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: switchboard 110: the main body of the enclosure
120: support frame 130: reinforcement frame
140: seismic unit 150: dustproof unit
160: leakage voltage measuring unit 170: state control unit
180: status indicator 190: corner reinforcement member

Claims (13)

The upper horizontal frame is provided on one side and the roof is formed on one side and has a hexahedral shape, the vertical frame connected in a vertical direction to the lower side of the upper horizontal frame, and coupled to the lower side of the vertical frame An enclosure body having a lower horizontal frame disposed to face the upper horizontal frame;
Corners having tension and cushioning functions to increase rigidity of the enclosure body and to mitigate external shocks by being coupled to a portion where the upper horizontal frame and the vertical frame are connected or a portion where the vertical frame and the lower horizontal frame are connected. Prefabricated switchgear (high and low voltage switchgear, MCC, distribution panel, ESS) having a seismic function characterized in that it comprises a reinforcing member. According to claim 1, wherein the support frame which is installed on the lower surface of the enclosure body to support the enclosure body, and coupled to the side of the support frame and having a constant gap with the side surface of the enclosure body in the height direction of the enclosure body Prefabricated switchgear having a seismic function further comprises a reinforcement frame configured to a predetermined height, and a seismic unit inserted between the enclosure body and the reinforcement frame and shielding vibration applied to the enclosure body in a horizontal direction. (High and low voltage switchgear, MCC, distribution board, ESS). The prefabricated switchgear having a seismic function (high and low voltage switchgear, MCC, distribution panel, ESS) according to claim 2, further comprising a plurality of dustproof units configured to have a predetermined distance between the enclosure body and the support frame. ). 2. The apparatus of claim 1, further comprising: a plurality of leakage voltage measuring units installed on and connected to each surface and the N phase of the enclosure body to measure leakage voltages of the N phase and the enclosure body; The state controller is configured to receive and analyze the leakage voltage measured by the voltage measuring unit to generate a trip signal of the circuit breaker, and a state indicator configured on one side of the door of the enclosure main body to turn on or blink depending on the result of the earthquake or the state controller. Prefabricated switchgear (high and low voltage switchgear, MCC, distribution panel, ESS) having a seismic function characterized in that it comprises a. The method of claim 2,
The seismic part is provided with an anti-vibration rubber coupled to an outer surface of the enclosure body, a first coupling plate coupled to an inner surface of the reinforcing frame, an anti-vibration member coupled to one side of the first coupling plate, and the other side of the anti-vibration member. Prefabricated switchgear having a seismic function (high and low voltage switchgear, MCC, distribution panel, ESS) comprising a second bonding plate coupled to the. The method of claim 5, wherein
The anti-vibration member includes one or more selected from synthetic rubber, leaf spring, coil spring, and magnet having repulsive force having an air layer therein so that the distance between the first coupling plate and the second coupling plate may be elastically increased or decreased. Prefabricated switchgear having a seismic function (high and low voltage switchgear, MCC, distribution panel, ESS). According to claim 1, Prefabricated switchgear having a seismic function characterized in that it further comprises a complex sensor for detecting the vibration, tilt and arc sensor and transmitting the result to the state control unit inside the enclosure body ( High and low voltage switchgear, MCC, distribution panel, ESS). According to claim 2, wherein the reinforcement frame is a vertical reinforcement frame coupled to the side of the support frame at regular intervals, a horizontal reinforcement frame connecting the top of the vertical reinforcement frame, a constant slope on both sides of the vertical reinforcement frame Prefabricated switchgear (high and low voltage switchgear, MCC, distribution panel, ESS) having a seismic function, characterized in that it comprises a slanted reinforcement frame disposed to have a vertical reinforcement frame. The method of claim 1, wherein the lower part of the enclosure main body is provided with a vent so that the external natural air can be smoothly introduced into the interior (preparation, high and low voltage switchgear, MCC, distribution panel, ESS). The method of claim 1, wherein the corner reinforcing member is at least two or more leaf springs configured with a constant gap in the portion where the upper horizontal frame and the vertical frame is connected, and while maintaining the spacing of the leaf spring between the said It comprises a gap holding member that the leaf spring is spaced, a first fixing member for fixing one side of the leaf spring to the upper horizontal frame, and a second fixing member for fixing the other side of the leaf spring to the vertical frame Prefabricated switchgear with high earthquake resistance (high and low voltage switchgear, MCC, distribution board, ESS). The prefabricated switchgear (high / low voltage switchgear, MCC, distribution board, ESS) according to claim 10, wherein the gap retaining member has a rubber packing on an outer side in contact with the leaf spring. The prefabricated switchgear having a seismic function (high and low voltage switchgear, MCC, distribution panel, characterized in that it further comprises a spring is inserted into the gap retaining member between the leaf springs). ESS). 12. The prefabricated switchgear having a seismic function (high / low pressure switchboard, MCC, distribution board, ESS) according to claim 11, further comprising an anti-vibration rubber formed between the joining surfaces of the leaf springs.

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