KR101294605B1 - Power receiving and transforming device with aseismicity and vibration proof - Google Patents

Abstract

PURPOSE: A switchgear having earthquake-proof and vibration-isolation function is provided to prevent damage of a component, by blocking first damage when earthquake or mechanical vibration is first generated. CONSTITUTION: A first vibration-isolation part (200) includes an elastic member. A second vibration-isolation part (300) controls displacement of a piston according to the intensity of a current. The second vibration-isolation part suppresses the movement of the main body of the switchgear with the control. A detection part outputs a current according to the vibration state to a control part (500). The control part outputs an amplified current to the second vibration-isolation part.

Description

Switchgear with Seismic and Dustproof Function {Power Receiving and Transforming Device With Aseismicity and Vibration Proof}

The present invention relates to a switchgear for receiving electricity of high voltage or extra high voltage and converting it into a voltage used by a customer and distributing it to a load facility. More particularly, the present invention relates to a switchgear having a seismic and dustproof function.

In general, since electric power demand is high in private electric facilities such as buildings or factories, it is impossible to receive electricity that can be used as it is from a power company, such as a general electric equipment having a low voltage of 110V or 220V.

Therefore, in general private electric installations, high voltages of 3,300V or 6,600V are received from power distribution lines of substations and converted to commercial voltages.In particular, private electric installations of large buildings receive 22.9kV extra-high voltages and convert them back to commercial voltages. There is a switchgear that makes this possible.

Such a switchgear includes a power supply facility for receiving high voltage and extra high pressure supplied from a substation, a substation facility for stepping down high voltage and extra high voltage received from a substation to a commercial voltage, and the electric power of each part in the building. It includes a power distribution facility for supplying and the like, and a housing for accommodating the power receiving facility, substation facility, and power distribution facility, and is generally fixed to the ground. Therefore, in the conventional switchgear, vibration from mechanical vibration or earthquake is transmitted to the switchgear as it is.

If the switchgear is installed on the ground as described above, when mechanical vibration or earthquake vibration or shock occurs, the power device inside the switchgear, the wiring connecting the power devices, and the electrical parts such as a protection relay are damaged or damaged. It is easy to do so, and the interruption generated may cause interruption of power supply and fire.

In recent years, large and small earthquakes in many parts of the world have caused a lot of human and national damage, and these signs are occurring in Korea, which has been classified as a relatively safe area.

The present invention, which is designed to solve the problems of the prior art, the damage of the internal and external components by the impact during the impact, such as earthquake or mechanical vibration, the primary damage of the housing damage and the power failure and fire due to the flow of the components, etc. It is to provide a switchgear with a seismic and dustproof function that can block the secondary damages and notify the outside of the earthquake, enabling earthquake preparedness and evacuation.

In order to achieve the above object, a switchgear having a seismic and dustproof function according to the present invention, the switchgear main body, the first dust-proof unit for providing a mechanical buffering force against vibration or shock, the vibration sensing current according to the detected vibration state A detector for outputting a to the controller; A control unit including a current amplifier for receiving and amplifying the current output from the detection unit, and outputting the amplified current to the second dustproof unit; And a second dustproof unit configured to suppress the movement of the switchboard main body according to the strength of the amplifying current.

In the present specification, the term "dustproof". It can be used to mean dustproof and earthquake-resistant. Therefore, the first dustproof part and the second dustproof part may be used as the first and second seismic parts, respectively.

In the switchgear having a seismic and dustproof function according to the present invention, the first dustproof part mechanically buffers vibration or shock and the like, and in a separate process, the second dustproof part corresponding to the intensity of the electrical signal output from the detector and the controller. In the main body of the switchgear can be suppressed in the horizontal, vertical, or horizontal and vertical movement.

The first dustproof part may include an elastic member including an elastic layer and a reinforcement layer. The elastic layer and the reinforcement layer may be alternately stacked. The laminated structure of the elastic layer and the reinforcing layer may be exposed to the outside, and the reinforcing layer may be embedded in the elastic layer so that the reinforcing layer may not be exposed to the outside. The elastic layer and the reinforcing layer may be an elastic rubber layer and a reinforcing steel sheet layer. In a non-limiting example, the elastic layer may be made of neoprene synthetic rubber.

The first dustproof part may be positioned between the lower surface of the switchboard main body and the ground, wherein the upper end may be coupled to the lower surface of the switchboard main body and the lower end may be coupled to the ground. Coupling with the switchgear main body and the ground may be a bolt fastening structure, but is not limited thereto.

The first dustproof part may further include an upper plate and a lower plate respectively installed at upper and lower ends of the elastic member. In this case, the upper plate may be coupled to the lower surface of the main switchboard body, and the lower plate may be coupled to the ground. In a non-limiting example, the top plate and the bottom plate may be integrally coupled to the elastic member by gluing, bolting, injection molding, or the like, or simply unbonded and unfastened to the top and bottom of the elastic member. It may be laid. The upper plate and the lower plate may be provided with stoppers for suppressing movement or preventing slipping of the elastic member.

Since the first dustproof part separates the switchboard main body from the ground at a predetermined interval, vibration or shock generated in the ground may not be transmitted to the switchboard main body as it is. In addition, the vibration or shock generated in the switchgear body may not be transmitted to the ground as it is.

Since the first dustproof part includes an elastic member including a reinforcing layer, it is possible to suppress swelling or buckling caused by vertical load, and flexibly cope with deformation in the horizontal direction due to the characteristics of the rubber layer. Therefore, unlike the elastic member made of only a conventional elastic material, it has excellent durability against long-term use and can provide a buffer against vibration in the vertical and horizontal directions.

The detection unit, in a non-limiting example, may include a detector for detecting vibration and a detector for outputting a current to the controller according to the sensed vibration state. In a non-limiting example, the detector may include a three-axis acceleration detector that analyzes and measures the acceleration of the sensed vibration and outputs a current to the controller according to the vibration state. Further, in a non-limiting example, the three-axis acceleration detector may analyze and measure the acceleration of the sensed vibration and output a current according to the magnitude of the earthquake to the controller. However, it is not limited thereto.

In a non-limiting example, the detection unit may be a first detection unit mounted on the lower surface of the main switchgear main body. In this case, the first detector may detect a vibration or an earthquake transmitted from the ground, analyze and measure the acceleration of the detected vibration, and output a current to the controller according to the magnitude of the earthquake. The seismic magnitude class may conform to the mercali magnitude class. In a non-limiting example, when the mercali intensity rank is 4 or more, a current can be output from the first detector. The strength of the current can vary depending on the magnitude of the seismic magnitude.

In a non-limiting example, the detector may be a second detector installed inside the main body of the switchgear, specifically, in the transformer board. In this case, the second detector may detect a vibration generated in the distribution panel, specifically, a transformer, and may output a current according to the detected intensity of the vibration to the controller. As a result, in the switchgear according to the non-limiting example of the present invention, since the vibration generated in the transformer is not directly transmitted to the switchgear body and the wall and / or the floor, it is possible to minimize the solid front sound due to the use of the transformer.

The solid front sound is a sound generated by shock or vibration transmitted to the structure as it is and vibrating the floor and the wall. In general, the noise of the transformer is not well known, but vibrations generated by the transformer can shake the floor and generate noise. However, the switchboard main body according to the non-limiting example of the present invention, as described above can minimize the first half of the solid sound. Furthermore, since the switchboard main body is spaced apart from the floor or the like by the first vibration isolator, the solid front sound can be further attenuated.

In a non-limiting example, the detection unit may be a third detection unit installed in the panel of the main switchgear main body. In general, the main body of the switchgear is equipped with a precision measuring instrument for measuring the voltage, current, power, and the like, and includes an automatic fault switch (ASS), a load switch (LBS), a vacuum breaker (VCB), and an air circuit breaker (ACB). Major devices should be loaded manually or automatically. Due to the impact generated during the input, the bolt fastening of the cable (cable) connected to the above devices can be released, the bolt fastening may cause a fire. In addition, the main switchboard is connected to the bus bar (bus bar)-bus bar, the bus bar-the cable is connected to the main bus, the impact generated during the injection can be loosened, which may also cause a fire. However, the switchboard according to the non-limiting example of the present invention can prevent the fire by attenuating the impact generated during the input.

In a non-limiting example, the detector may be two or more selected from the first detector, the second detector, the third detector, and the like.

The controller may receive and amplify the current output from the detector, and then output the amplified current to the second dustproof unit.

In a non-limiting example, the control unit may further include a first display unit for displaying the strength of the earthquake as an acceleration and / or a second display unit for displaying whether current is transmitted to the second dustproof unit. The apparatus may further include a control unit for allowing a user to adjust the acceleration range and the alarm setting. The control unit may further include an alarm unit that notifies the occurrence of an earthquake, and / or an external communication port that outputs an earthquake magnitude rank to an external earthquake control room. Therefore, at the same time as the occurrence of the earthquake, it is possible to notify the outside of the earthquake occurrence situation to enable the preparation and evacuation of the earthquake.

The second dustproof part includes a cylinder, a magnetic core part mounted in the cylinder, a piston reciprocating in the hollow of the magnetic core part, and connected to the main body of the switchgear, and sealed in the cylinder. And a suspension of ferrite particles contained within the cavity of the space and the magnetic core.

In the second vibration isolator, an electromagnetic field is generated corresponding to the intensity of the received current, whereby the ferrite particles accommodated in the second vibration is bonded to each other, and the coupling between the ferrite particles is the movement of the piston. Since it acts as a resistance against, eventually the movement of the piston can be suppressed and the movement of the switchboard can be suppressed. Specifically, the coupling between the ferrite particles may occur in a direction perpendicular to the direction of movement of the piston.

The cylinder may be mounted and fixed to the ground, for example, may be mounted to the ground by bolting. In some cases, the second dustproof part may further include a ground support coupled to the cylinder to mount the cylinder on the ground.

One end of the piston may be coupled to the main switchgear main body, and in some cases, the second dustproof part may further include a main body coupling unit coupling the piston to the main switchgear main body. In this case, one end of the main body fastening portion may be engaged with one end of the piston, and the other end of the main body fastening portion may be engaged with the lower surface of the switchgear. The fastening method is not limited and may be a bolt fastening structure as a non-limiting example.

The magnetic core unit may generate an electromagnetic field in response to the current received from the controller. At this time, the coupling between the ferrite particles occurs in the suspension of the ferrite particles contained in the sealed space in the cylinder, which can act as a resistance to the movement or movement of the piston. The suspension of ferrite particles may be an oil suspension of ferrite particles.

The second dustproof part may be located in a space between the ground and the switchboard main body spaced apart by the first dustproof part. The angle between the piston and the ground may be in a range of 0 degrees or more and less than 90 degrees. Specifically, when the angle between the piston and the ground is 0 degrees, the piston may be installed parallel to the ground. In this case, the restraining force can be exerted on the movement of the switchgear with respect to the vibration or the impact in the horizontal direction.

In order to provide the suppression force in the horizontal and vertical directions with respect to the movement of the switchboard with respect to the vibration in the horizontal and vertical directions, the angle of the piston and the ground may be greater than 0 degrees and less than 90 degrees, more than 10 degrees and less than 80 degrees, 20 degrees or more and less than 70 degrees, 30 degrees or more and less than 65 degrees, 35 degrees or more and less than 65 degrees, 40 degrees or more and less than 65 degrees, and the like.

In one non-limiting embodiment, the second vibration isolator may include one piston. In another non-limiting embodiment, the second vibration isolator may include two or more pistons. Among the two or more pistons, one or more pairs of pistons parallel to each other may be included.

The switchgear main body may be a switchgear panel which is generally used, and may include a housing for accommodating them, such as a special high voltage plate, a transformer panel, a high voltage panel, a low voltage panel, a motor control panel (MCC panel), a distribution panel, and the like. Since the structure and manufacturing method of a general switchgear is known in the art, detailed description thereof will be omitted below.

The switchgear having a dustproof and seismic function according to the present invention, the damage of the internal and external components due to the impact when the shock occurs, such as earthquake or mechanical vibration, the primary damage of the housing damage and the secondary damage such as power failure and fire due to the flow of the component It can block the earthquake and notify the outside of the earthquake, so it is possible to prepare for and evacuate the earthquake.

1 is a front view of a switchboard according to one non-limiting embodiment of the present invention;
2 is a rear view of the switchgear of FIG. 1;
3 is a perspective view of a detector according to one non-limiting embodiment of the present invention;
4 is a perspective view of a first dustproof part according to a non-limiting embodiment of the present invention;
5 is a cross-sectional view of the second dustproof body of the second dustproof part according to a non-limiting embodiment of the present invention;
6 is a diagram schematically showing the bonding state of ferrite particles in the second dustproof portion;
7 is a schematic diagram showing a state in which the second dustproof part is inclined with the ground, according to a non-limiting embodiment of the present invention;
FIG. 8 is a schematic diagram showing a state in which a second dustproof part designed to include two pistons parallel to each other is installed, according to a non-limiting embodiment of the present invention.

Hereinafter, with reference to the drawings, a non-limiting embodiment of the present invention will be described in detail, but the content of the present invention is not limited thereto, and can be easily substituted and modified within the scope of the technical matters of the present invention. Equivalent inventions are also included in the spirit of the invention.

1 and 2, the switchboard according to a non-limiting embodiment of the present invention, the switchboard body 100, the first dustproof part 200, the second dustproof part 300, the detector 400 and The control unit 500 is included. 2 and 3, the detection unit 400 is mounted on the lower surface of the switchboard main body, and measures acceleration according to a sensor (not shown) and a seismic magnitude class that detect vibration in the housing 410. A three-axis acceleration detector (not shown) for analyzing and outputting current is included, and the current according to the seismic magnitude class is output through the output cable 420. The output cable 420 is connected to the control unit 500 through the cable hole 110 of the lower surface of the switchboard main body 100. In a non-limiting example, when the mercali magnitude is greater than 4, the current along the seismic magnitude class is 4 to 20 mA. The detection unit 400 is bolted to the lower surface of the switchgear main body using the bolt fastener 430.

Referring to FIG. 1, the control unit 500 may include a first display unit 510 for displaying an intensity of an earthquake as an acceleration, a second display unit 520 for displaying whether a current is transmitted to the second dustproof unit 300, and a user. It includes a control unit 530 that can adjust the acceleration range adjustment and alarm settings (setting) and the like. Although not shown, the control unit 500 may further include an external communication port for outputting an earthquake magnitude class to an external earthquake control room to notify an earthquake occurrence, and the alarm unit and the external communication port may include a control unit 500. It can be located on the back.

1 and 2, the first dustproof part 200 is mounted on the lower surface of the main switchboard body 100. Referring to FIG. 4, the first dustproof part 200 includes an elastic member having a laminated structure in which an elastic layer 210 and a reinforcing layer 220 are alternately stacked, and an upper plate 250 mounted on an upper end of the elastic member and elasticity. And a bottom plate 260 mounted to the bottom of the member. A bolt fastener 270 is formed on the upper plate 250 and the lower plate 260, and the first dustproof part 200 is bolted to the lower surface of the main switchboard body using the bolt fastener 270. The upper plate 250 is coupled to the switchboard body, and the lower plate 260 is coupled to the ground.

1, 2, and 5 to 8 together, the second dustproof part 300 is mounted on the lower surface of the switchboard main body 100. The second dustproof part 300 includes a second dustproof part main body 310 coupled to the switchboard main body 100, and the second dustproof part main body 310 receives the current output from the piston 320 and the controller. Oil to seal the wire 321, the cylinder 330, the magnetic core portion 360, the cylinder 330 is formed in the cylinder 330, the hollow through which the piston 320 passes through to the second dustproof portion The oil seal 350 and the bearing 340, the body fastening portion 372 to be fastened to the switchboard main body 100, the ground fastening portion 371 to be fastened to the ground, and the second dustproof part 300 are ground supports. 381 and main body support 382.

The space inside the cylinder 330 is completely sealed by the oil seal 350 and the bearing 340, and the oil suspension of the ferrite particles 331 is filled. The oil suspension of the ferrite particles 331 is also filled in the hollow of the magnetic core portion 360. The ferrite particles 331 are coupled to each other by the electromagnetic field generated by the electric current received from the controller, and the coupling force acts in a direction perpendicular to the direction of movement of the piston 320.

The magnetic core portion 360 includes a core body 361 and a coil 362 wound around the core body 361. The body fastening portion 372 is coupled to the body support 382, and the ground fastening portion 371 is coupled to the ground support 381.

Unlike FIG. 1 in which the second vibration isolator main body 310 is mounted horizontally with the ground, the second vibration isolator main body 310 in FIG. 7 has a predetermined angle with the ground. Although not shown in the drawings, in the non-limiting example, the predetermined angle is 60 degrees. When the second vibration isolator main body 310 is horizontal to the ground, the second vibration isolator main body 310 is grounded, unlike the case where the vibration and shock resistance can be imparted to the switchgear only for the shock caused by the vibration and the earthquake acting in the horizontal direction. In the case of providing the lens at a predetermined angle, the vibration resistance can be imparted to both the vibration in the horizontal direction and the vertical direction and the impact caused by the earthquake.

Referring to FIG. 8, unlike FIG. 1, since there are two pistons in the second dustproof main body 310, the two pistons are parallel to each other, and the movements of the two pistons are suppressed at the same time, the left and right movement of the switchboard is more efficient. Can be suppressed.

Claims (16)

Switchgear main body;
A first dustproof part spaced apart from the main body of the switchgear and including an elastic member including an elastic layer and a reinforcement layer;
A cylinder, a magnetic core part mounted in the cylinder, a piston reciprocating in the hollow of the magnetic core part and connected to the main body of the switchgear, a hollow space in the cylinder, and a hollow of the magnetic core part A second dustproof part including a suspension of ferrite particles contained therein and controlling displacement of the piston according to the strength of the current according to the vibration state to suppress movement of the main switchgear body;
A detector for detecting vibration and measuring and analyzing the detected vibration and outputting a current according to the vibration state to the controller; And
A control unit including a current amplifier for receiving and amplifying the current output from the detection unit, and outputting the amplified current to the second dustproof unit;
Switchgear comprising a. The method of claim 1, wherein the elastic member,
A switchgear comprising a laminated structure in which an elastic rubber layer and a reinforcing steel sheet layer are alternately laminated. The method of claim 1, wherein the first dustproof part,
The switchgear further comprises an upper plate and a lower plate respectively installed above and below the elastic member. The switchgear of claim 3, wherein the upper plate, the lower plate, or the upper and lower plates further include a stopper for suppressing movement of the elastic member. The switchgear according to claim 1, wherein the suspension of ferrite particles is an oil suspension of ferrite particles. The switchgear according to claim 1, wherein the cylinder is fixed to the ground. The method of claim 1, wherein the second dustproof part,
And a ground supporter coupled to the cylinder for mounting the cylinder on the ground. The method of claim 1, wherein the second dustproof part,
A switchgear further comprising a body fastening portion coupled to the piston to mount the piston to the switchgear body. The method of claim 1, wherein the second dustproof part,
Switchgear, characterized in that located in the space between the main body and the switchboard spaced apart by the first dustproof unit. The apparatus of claim 1,
A group consisting of a first display unit for displaying the seismic intensity as an acceleration, a second display unit for indicating whether the current is transmitted to the second dustproof unit, an alarm unit for an earthquake occurrence, and an external communication port for outputting the seismic magnitude class to an external earthquake control room. Switchgear, characterized in that it further comprises one or more selected from. The angle of the piston and the ground,
Switchgear, characterized in that the range of more than 0 degrees to less than 90 degrees. The switchgear according to claim 1, wherein the second vibration isolator comprises one piston. The switchgear of claim 1, wherein the second dustproof part comprises two or more pistons. The method of claim 1, wherein the second dustproof part,
2. A switchgear comprising two or more pistons, wherein the switchboard comprises one or more pairs of parallel pistons. The method of claim 1, wherein the detection unit is one or more selected from the group consisting of a first detection unit provided on the lower surface of the main switchgear main body, a second detection unit provided in the interior of the transformer panel and a third detection unit provided on the panel of the main switchgear main body. Switchgear characterized by the above. The switchgear of claim 15, wherein the first detector comprises a three-axis acceleration detector for analyzing and measuring an acceleration of the earthquake and the detected earthquake and outputting a current according to the magnitude of the earthquake to the controller. .

Images