KR102079100B1 - Transformer protectors that can shut off circuit breakers in the event of an earthquake - Google Patents

Abstract

The present invention relates to a transformer protection apparatus for disconnecting a circuit breaker upon the occurrence of a dangerous situation like an earthquake. According to the present invention, in order to prevent damage to a transformer in case of an earthquake, a plurality of sub damping means are used to damp vertical vibrations delivered to the transformer, a first distance measurement sensor attached to the bottom of the transformer is used to measure the distance between the bottom of the transformer and an upper foundation placed thereunder in case of vertical vibrations, and a second distance measurement sensor attached to the upper side of the transformer is used to measure the distance between the upper side of the transformer and an external case placed thereon. Therefore, information about whether the transformer belongs to a danger stage, in which the transformer can be broken or malfunctioning due to an earthquake, or a stage lower than the danger stage, in which the probability of the transformer being broken or malfunctioning is high in spite of an earthquake, can be transmitted to an external management server and a manager terminal in accordance with the level of each measurement value. If the situation corresponds to the danger stages, the circuit breaker is sequentially disconnected through a sequence management means to protect the transformer.

Description

TRANSFORMER PROTECTORS THAT CAN SHUT OFF CIRCUIT BREAKERS IN THE EVENT OF AN EARTHQUAKE}

The present invention relates to a transformer protection device, and more particularly, when detecting the occurrence of an earthquake, the earthquake that can protect the transformer by measuring the degree of shaking of the transformer using a sensor, and cut off the power of the breaker according to the measured value The present invention relates to a transformer protection device that can block a circuit breaker according to a dangerous situation in case of occurrence.

In general, since a transformer receives high voltage power from a power plant and distributes it to various electric system, there is always a high voltage residual power inside the transformer. Such a transformer may cause a short circuit due to the dew in a general natural situation in which dew is generated inside, and may cause a disaster such as a fire. May cause.

Therefore, the transformer is designed to prepare for various abnormal situations, and for this purpose, the transformer is basically provided with a circuit breaker such as VCB, ACB, MCCB. The breaker is configured to automatically trip when an abnormality occurs in a track to protect the track and various electrical equipments connected to the corresponding track, and operate to recover if there is no abnormality through a later track check.

However, in the event of a massive natural disaster such as an earthquake, despite the breaker, the transformer itself is shocked by the vibration caused by the earthquake. Thus, even if the breaker is tripped, residual power is present inside the transformer. Therefore, when damage occurs to the internal parts that are impacted, such residual power may leak and cause great damage due to short circuit or short circuit.

1 to 5 show a ground transformer with a conventional seismic function, a base (A) installed on the ground, an outer case (B) provided on an upper portion of the base (A), and the outer case ( A transformer unit C fixed to an upper surface of the base A is provided to be positioned inside B).

And, according to the ground transformer with a seismic function, the base (A) is made of a concrete material, as shown in Figures 1 to 3, the upper surface is provided with a lower guide rail 11 extending in the front and rear direction The lower base 20 and the upper guide rail 21 which is slidably coupled to the fixed base 10 and the lower guide rail 11 in a forward and backward direction and has a laterally extending upper guide rail 21. The upper base 30, which is slidably coupled to the side 21 and the transformer unit C is installed on the upper surface, the lower measuring mechanism 40 connected to the lower base 20, and the upper foundation ( 30 is connected to the upper measuring instrument 50 connected to the lower base 20, the lower position adjusting means 60 for sliding the lower base 20 forward and backward, and connected to the upper base 30. Above the upper side to slide the upper base 30 laterally Tooth adjustment means 70, the lower braking means 80 is connected to the lower foundation 20 to secure the lower foundation 20 does not slide forward and backward, and the upper foundation 30 is connected to the upper foundation 30 Upper braking means (90) for fixing the 30 so as not to slide in the front and rear direction, an earthquake detecting sensor (100) provided in the fixed base 10 to detect the occurrence of earthquake, and the lower measuring mechanism (40) And control means 110 for receiving the signals of the upper measuring device 50 and the earthquake detection sensor 100 and controlling the operation of the upper and lower braking means 80 and 90 and the upper and lower position adjusting means 60 and 70. It is composed of

The fixing base 10 is installed in a square block shape, the upper surface of which is fixed to the ground.

At this time, the fixing base 10 is configured such that the area of the upper surface is larger than the area of the outer case B, so that the outer case B is fixed to the upper surface of the fixing base 10.

The lower guide rails 11 are provided on both sides of the upper surface of the fixed foundation 10 so as to be laterally spaced apart from each other.

The lower foundation 20 is formed in the form of a rectangular metal plate of high strength, and is formed in the shape of a bar extending in the front and rear direction on both lower sides so as to be slidable in the front and rear directions on the upper surface of the lower guide rail 11. The combined lower slide block 22 is provided.

The lower slide block 22 is provided to be spaced apart from each other to correspond to the interval of the lower guide rail 11, the lower rack gear 23 on the side of the lower slide block 22 on one side of the front and rear directions It is formed to extend.

The upper guide rails 21 are provided on the upper surface of the lower foundation 20 so as to be spaced apart from each other in the front and rear directions.

The upper base 30 is configured in the form of a rectangular metal plate of high strength, and is formed in a bar shape extending laterally on both sides of the lower side so as to be able to slide laterally on the upper surface of the upper guide rail 21. The combined upper slide block 31 is provided.

The upper slide block 31 is provided so as to be spaced apart from each other in the front and rear directions so as to correspond to the gap of the upper guide rail 21, the upper rack gear 32 on the front of the upper slide block 31 located in the rear It is formed to extend laterally.

At this time, the area of the lower foundation 20 and the upper foundation 30 is configured to be smaller than the inner area of the outer case (B), the lower foundation 20 and the upper foundation 30 is the lower guide rail 11 ) And the upper guide rail 21 may be advanced back and forth in the front and rear and left and right directions.

In addition, the lower guide rails 11 and the upper guide rails 21 are preferably formed long enough to accommodate the vibration width of the lower base 20 and the upper base 30 to vibrate at a magnitude of 6 or more magnitude. Do.

The lower measuring device 40 and the upper measuring device 50 are rotatably coupled to the fixed base 10 and the lower base 20 and meshed with the lower rack gear 23 and the upper rack gear 32, respectively. The lower driven gear 41 and the upper driven gear 51 and the lower angle sensor 42 and the upper angle sensor 52 for measuring the rotation angles of the lower driven gear 41 and the upper driven gear 51. It is composed.

The lower driven gear 41 and the upper driven gear 51 are rotatably coupled to the rotation shafts 12 and 24 provided to extend in the vertical direction on the upper surfaces of the fixed foundation 10 and the lower foundation 20.

The lower angle sensor 42 and the upper angle sensor 52 are fixedly coupled to the rotary shafts 12 and 24 so that the lower driven gear 41 or the upper driven gear 51 rotates, the lower driven gear 41. B is configured to measure the angle at which the upper driven gear 51 is rotated and output to the control means 110.

In this case, since the diameters of the upper and lower driven gears 41 and 51 are known, the angles at which the upper and lower driven gears 41 and 51 are rotated by using the upper and lower angle sensors 42 and 52 are measured. The distance between the upper and lower slide blocks 22 and 31 and the upper and lower foundations 20 and 30 is slid from the center of the upper and lower guide rails 11 and 21 to the front and rear or left and right directions. Can be.

The lower position adjusting means 60 and the upper position adjusting means 70 include a lower pinion gear 61 and an upper pinion gear 71 coupled to the lower rack gear 23 and the upper rack gear 32; It consists of a lower drive motor 62 and an upper drive motor 72 connected to the lower pinion gear 61 and the upper pinion gear 71.

The lower drive motor 62 and the upper drive motor 72 uses a BLDS motor that does not generate a resistance when not driven.

Accordingly, when the upper and lower drive motors 62 and 72 are driven, the upper and lower pinion gears 61 and 71 are rotated to slide the lower slide block 22 in the front-rear direction or the upper slide block. Slide (31) laterally.

On the contrary, when the upper and lower driving motors 62 and 72 are stopped, the lower slide block 22 and the upper slide block 31 slide freely in the front-rear direction or the left-right direction.

The lower braking means 80 is provided on one side of the lower slide block 22 and is configured to press the circumference of the lower guide rail 11 to fix the lower slide block 22 so as not to move.

The upper braking means 90 is provided on one side of the upper slide block 31 and is configured to press the circumference of the upper guide rail 21 during operation to fix the upper slide block 31 so as not to move.

In this case, the upper and lower braking means (80, 90) is the control when the lower slide block 22 and the upper slide block 31 is located in the center of the lower guide rail 11 and the upper guide rail 21 Operated by a control signal of the means 110, the upper and lower slide blocks 22 and 31 are fixed so as not to move.

That is, the lower foundation 20 and the upper foundation 30 are slidably coupled to the lower guide rail 11 and the upper guide rail 21 in the front, rear, left and right directions, respectively, and the lower guide rail 11 The upper guide rail 21 and the upper guide rail 21 may not be perfectly horizontal, and vibration generated by a vehicle passing through the periphery may be transmitted. In this case, the lower foundation 20 and the upper foundation 30 may be lowered. The guide rail 11 and the upper guide rail 21 can be slid toward the ends, and thus, the lower foundation 20 and the upper foundation 30 are formed of the lower guide rail 11 and the upper guide rail 21. When an earthquake occurs in a state that slides toward the end, the lower base 20 and the upper base 30 may be caught by the end of the lower guide rail 11 and the upper guide rail 21 may not be free to flow.

At this time, the upper and lower braking means (80, 90) in the state in which the lower slide block 22 and the upper slide block 31 is located in the center portion of the lower guide rail 11 and the upper guide rail 21. When the lower slide block 22 and the upper slide block 31 is fixed, and the braking of the upper and lower braking means 80 and 90 is released during an earthquake, the upper and lower slide blocks 22 and 31 It can freely slide back and forth and left and right directions to absorb vibrations in the front and rear and left and right directions.

The earthquake detection sensor 100 detects that the fixed foundation 10 is vibrated by an earthquake and outputs a signal, and thus the detailed description thereof will be omitted.

The control means 110 releases the braking of the upper and lower braking means (80,90) when the earthquake is detected in the earthquake detection sensor 100, the lower slide block 22 and the upper slide block By 31 sliding along the lower guide rail 11 and the upper guide rail 21 in the front and rear and left and right directions, the front and rear and left and right vibration of the fixed foundation 10 is transmitted to the upper base 30. To prevent the transformer unit C installed in the upper base 30 from being vibrated.

 At the same time, the control means 110 controls the operation of the lower position adjusting means 60 and the upper position adjusting means 70 while feeding back the signals of the lower measuring instrument 40 and the upper measuring instrument 50. The slide block 22 and the upper slide block 31 is adjusted so as not to leave the lower guide rail 11 and the upper guide rail 21.

That is, when an earthquake is generated and the upper and lower braking means 80 and 90 are released, as shown in FIGS. 4 and 5, the lower slide block may be caused by the vibration of the fixed foundation 10. The lower slide block 22 and the upper slide block 31 and the upper slide block 31 are vibrated in the front, rear, left, and right directions, and at the same time, the lower slide block 22 and the upper slide block due to the inclination of the upper and lower guide rails 11 and 21 or other various causes. 31 does not vibrate within a certain range, and the center of vibration, that is, the centers of both ends of the lower slide block 22 and the upper slide block 31 at the position where the lower guide rail 11 or the upper guide rail ( 21 may be gradually moved to one side.

At this time, the control means 110 receives the signals of the lower measuring device 40 and the upper measuring device 50, the lower center of the vibration of the lower slide block 22 and the upper slide block 31, When it is detected that the lower guide rail 11 or the upper guide rail 21 is gradually moved to one side, the lower position adjusting means 60 and the upper position adjusting means 70 are driven to the upper and lower slide blocks ( The vibration centers of 22 and 31 are adjusted to be positioned at the center of the upper and lower guide rails 11 and 21.

For example, when the vibration center of the lower slide block 22 moves forward of the lower guide rail 11, when the lower slide block 22 slides backward, the lower position adjusting means 60 is moved. By driving and applying a force to slide the lower slide block 22 to the rear, it is possible to adjust the vibration center of the lower slide block 22 is located in the center of the lower guide rail (11).

Therefore, the lower slide block 22 and the upper slide block 31 vibrate in the front and rear or left and right directions at the center of the lower guide rail 11 and the upper guide rail 21, the lower slide block 22 and the upper The slide block 31 is prevented from falling out of the lower guide rail 11 and the upper guide rail 21.

And, if it is determined that the earthquake is stopped by receiving the signal of the earthquake detection sensor 100, the control means 110 drives the upper, lower position adjusting means (60, 70), the upper, lower slide block After the upper and lower guide rails 11 and 21 are positioned at the center of the upper and lower guide rails 11 and 21, the upper and lower slide blocks 22 and 31 are operated by operating the upper and lower braking means 80 and 90. ) So that it does not move.

The ground transformer having the seismic function configured as described above is fixed so that the lower base 20 and the upper base 30 are not moved by the upper and lower braking means 80 and 90 in normal times, and the seismic sensor 100 When an earthquake is detected, the control means 110 controls the upper and lower braking means 80 and 90 to release the lock, thereby allowing the lower foundation 20 and the lower foundation 20 to freely lift the upper and lower guides. By sliding back and forth and left and right along the rails 11 and 21, the vibration of the fixed foundation 10 is absorbed and the transformer unit C installed in the upper foundation 30 is not vibrated.

Therefore, the transformer unit C may be vibrated by an earthquake, thereby preventing the transformer unit C from being damaged.

In addition, while feeding back the signals of the lower measuring device 40 and the upper measuring device 50, the operation of the lower position adjusting means 60 and the upper position adjusting means 70 is controlled to control the lower slide block 22 and the upper part. By adjusting the slide block 31 so as not to leave the lower guide rail 11 and the upper guide rail 21, there is an advantage that can effectively prevent the vibration or shock is transmitted to the transformer unit (C).

In general, when the slide block that slides freely along the guide rail is not excessively moved toward the end of the guide rail, springs or dampers are provided at both ends of the guide rail so that the slide block is excessively moved toward the end of the guide rail. In this case, a shock may be transmitted to the transformer unit C when the fixed foundation 10 vibrates.

On the other hand, in the case of a ground transformer having a seismic function, the upper and lower slide blocks 22 and 31 using the upper and lower measuring instruments 40 and 50 and the upper and lower position adjusting means 60 and 70. The upper and lower guide rails 11 and 21 are adjusted to vibrate to prevent vibration from being transmitted to the transformer unit C when the fixed foundation 10 is vibrated, so that the transformer unit ( C) has the advantage of more effectively preventing the damage by the impact.

6 to 9 illustrate a second embodiment of a ground transformer having a seismic function, and is provided on an outer circumferential surface of the outer case B to detect a person near the outer case B. Referring to FIG. Proximity detection sensor 120, the warning means 130 provided on one side of the outer case (B), a plurality of air injection nozzles 140 provided to face the outer side of the outer case (B) And an air supply means 150 which is operated by the control of the control means 110 to supply high pressure air to the air injection nozzle 140.

The proximity sensor 120 detects when an object is approached within a predetermined distance using ultrasonic waves, which is very general and will not be described in detail.

The air injection nozzle 140 has a plurality of nozzle bodies provided to be spaced apart from each other at regular intervals on the air supply pipe 141 provided on the circumference of the outer case (B) and the outer surface of the air supply pipe 141 ( 142).

The warning means 130 is configured to output a pre-stored guidement operationally controlled by the control means 110.

The guidement stored in the warning means 130 may be configured as 'please be away from the transformer because it is dangerous.'

The air supply means 150 is provided on one inner side of the outer case B and is connected to the air supply pipe 141 to use an air compressor for supplying high pressure air to the air supply pipe 141.

When the occurrence of an earthquake is detected by the earthquake detection sensor 100, the control unit 110 receives a signal from the proximity detection sensor 120 and there is a person near the outer case B. The warning means 130 is driven to warn nearby people.

The control means 110 receives a signal from the proximity sensor 120 and outputs a warning from the warning means 130. Even after a preset time elapses, a person near the outer case B If not far more than a predetermined distance, as shown in Figure 9, by driving the air supply means 150 to inject air to the circumference of the outer case (B) through the air injection nozzle 140.

When the air is injected from the air injection nozzle 140 in this way, the air is strongly injected toward the person near the outer case (B), and people are surprised to be forced to move away from the outer case (B).

The ground transformer equipped with the seismic function configured as described above detects if there is a person near the outer case (B) when an earthquake occurs, outputs a warning, and if the person does not move away after the warning output, the air spray nozzle 140 By injecting air through the force) to force people away from the outer case (B), it is possible to prevent people around you from being injured by the high-temperature insulating oil spilled from the transformer unit (C) damaged by the earthquake There is an advantage.

FIG. 10 illustrates a third embodiment of a ground transformer having a seismic function. An auxiliary attenuation means 160 is provided between the upper base 30 and the transformer unit B to attenuate vertical vibration. do.

The auxiliary damping means 160 is a damper 161 provided between the upper base 30 and the transformer unit B so as to extend in the vertical direction, and the compression coil spring 162 provided on the outside of the damper 161. It consists of

Therefore, when an earthquake in the up and down direction occurs, the damper 161 and the compression coil spring 162 are compressed and stretched to attenuate the vibration in the up and down direction.

Referring to FIG. 10, the ground transformer equipped with the seismic function according to the related art has an auxiliary damping means 160 between the upper base 30 and the transformer unit B to attenuate up and down vibrations. It is not possible to measure the degree of vibration up and down when it occurs, and it is a dangerous situation depending on the degree of vibration up and down, or it is not dangerous and it is not necessary to take action immediately. There is a problem that you do not know exactly whether the situation. In addition, there is a problem that can not prevent damage to the transformer because there is no way to safely cut off and restore the power according to the degree of up and down vibration when the up and down vibration occurs.

Utility Model Registration No. 20-0465728 Patent Registration No. 10-1957113 Patent Registration No. 10-1253992

The present invention is to solve the above problems, in order to prevent damage to the transformer in the event of an earthquake by using a plurality of auxiliary attenuating means to attenuate the vertical vibration transmitted to the transformer, the first distance attached to the bottom of the transformer Measures the distance between the bottom of the transformer and the upper base underneath the vibration by using the measuring sensor, and uses the second distance measuring sensor attached to the upper surface of the transformer to measure the top and bottom of the transformer. Measure the distance between the outer casings to determine if the transformer is at risk of failure or damage due to the earthquake, or if the earthquake has occurred but is of a lower caution level than the dangerous phase, the transformer is likely to fail or break. If it is not high, send it to external management server and administrator terminal. , It is an object to provide a transformer protection that can be cut off the circuit breaker in accordance with the sequence management means when the circuit breaker earthquake to protect the transformer by interrupting sequentially through dangerous situation if the risk step.

The present invention for achieving the above object, the transformer unit; A primary circuit breaker connected to the primary side of the transformer unit; A secondary circuit breaker connected to the secondary side of the transformer unit; Sequence management means for sequentially blocking or starting the primary breaker and the secondary breaker; Fixed base composed of concrete material and having a lower guide rail extending in the front and rear direction on the upper surface; A lower base slidably coupled to the lower guide rail in a forward and backward direction and having an upper guide rail extending laterally on an upper surface thereof; An upper foundation slidably coupled to the upper guide rail and having the transformer unit C installed on an upper surface thereof; An earthquake detection sensor provided in the fixed base to detect the occurrence of an earthquake; A plurality of auxiliary attenuating means provided between the upper base and the transformer unit C to reduce the vertical vibration transmitted to the transformer unit C; A plurality of first distance measuring sensors attached to a bottom surface of the transformer unit C to measure a distance to an upper basis under the transformer; A plurality of second distance measuring sensors attached to an upper surface of the transformer unit C to measure a distance to an outer case B thereon; Communication means attached to the inside or outside of the outer case (B) to transmit data to an external management server and a manager terminal, and to receive a control signal; And detecting the occurrence of an earthquake by receiving the signal of the earthquake detection sensor, measuring the measured value of the first distance measuring sensor to be smaller than the first set value, and the measured value of the second distance measuring sensor to be smaller than the second set value. When a large measurement is repeatedly detected, an external earthquake occurs through the communication means to transmit a dangerous phase, the power is sequentially blocked through the sequence management means, and an earthquake detection signal is detected to detect the occurrence of an earthquake. However, if the measured value of the first distance measuring sensor is measured to be larger than the first set value and the measured value of the second distance measuring sensor is measured to be smaller than the second set value, it is repeatedly detected through the communication means. Control means for transmitting that an earthquake has occurred but is of a lesser caution level than the dangerous phase.

The primary circuit breaker is characterized in that the VCB or ACB.

In addition, when the primary circuit breaker is VCB, the secondary circuit breaker is ACB or MCCB, and when the primary circuit breaker is ACB, the secondary circuit breaker is MCCB.

The first distance measuring sensor is attached to the bottom of the transformer unit (C) one by one near the auxiliary attenuating means and consists of a total of four, and the second distance measuring sensor is attached to one of the top four corners of the transformer unit (C). The control means includes all four measured values of the first distance measuring sensor smaller than the first set value, and all measured values of the four second distance measuring sensors are larger than the second set value. If the measurement is repeatedly detected for a certain time, the earthquake occurs outside the communication means through the communication means transmits a dangerous phase, the power is sequentially cut off through the sequence management means, the control means four first distance measuring sensor All measured values of are measured larger than the first set value, and all measured values of the four second distance measuring sensors are measured smaller than the second set value repeatedly for a predetermined time. If not, but outside the earthquake on through the communication means is characterized in that that the transfer rates are lower than the risk step Note step.

In addition, the first distance measuring sensor is attached to the bottom of the transformer unit (C) one by one adjacent to the auxiliary attenuating means and consists of a total of four, the second distance measuring sensor on the top four corners of the transformer unit (C) It is attached one by one and consists of a total of four, the control means is any one of the measured value of the four first distance measuring sensor (v1) or the measured value of the position symmetrical with respect to the center of the bottom of the transformer unit (C) Two (v1, 2) is measured smaller than the first set value, the measurement of the same direction as any one (v1) of the measured value of the four second distance measuring sensor based on the center of the upper surface of the transformer unit (C) Based on the value v1 'or the center of the upper surface of the transformer unit C, two measured values v1 and 2' in the same direction as the two v1 and 2 are measured to be larger than the second set value. If repeatedly detected during the earthquake occurs through the communication means Transmitting that the dangerous phase, the power is sequentially blocked through the sequence management means.

The first distance measuring sensor is attached to the inner side of the auxiliary attenuating means one by one based on the center of the bottom of the transformer unit (C) consists of a total of four, from the center of the bottom of the transformer unit (C) to the first distance measuring sensor The distance of is shorter than the distance from the center of the bottom of the transformer unit (C) to the auxiliary attenuation means, the second distance measuring sensor is characterized in that it is attached to one of the top four corners of the transformer unit (C) consists of a total of four.

The distance D1 from the center of the bottom surface of the transformer unit C to the first distance measuring sensor is shorter than the distance D2 from the center of the upper surface of the transformer unit C to the second distance measuring sensor. The means may include any one of the measured values of the four second distance measuring sensors (v1 ') or any two (v1, 2') of the measured values that are symmetrical with respect to the center of the upper surface of the transformer unit (C). 2 is measured to be larger than the set value, and the measured value v1 or the transformer unit in the same direction as the one v1 'based on the bottom center of the transformer unit C among the measured values of the four first distance measuring sensors. Based on the bottom center of C), the two measured values v1 and 2 in the same direction as the two v1 and 2 'are measured larger than the first set value, but the first set value to the first set value + α If it is repeatedly detected for a certain period of time to fall within the range of the earthquake occurs outside the communication means A transmission system that is characterized in that the sequential block the electric power through the sequence control measures.

In addition, the α is as follows

α = (D2-D1) / D1) × 100 Equation 1

It is characterized by calculating by Formula 1.

The control means recovers power from the primary circuit breaker to the secondary circuit breaker through the sequence management means according to the control signal received through the communication means, and sequentially recovers each secondary circuit breaker when a plurality of secondary circuit breakers are configured. It is characterized by preventing the damage caused by the inrush current.

According to the present invention having the above configuration, the following effects can be achieved.

First, when the earthquake is detected using an earthquake sensor, when the transformer unit shakes up and down using the first distance sensor attached to the bottom of the transformer unit and the second distance sensor attached to the upper surface of the transformer unit. By measuring the degree of shaking and using the measured values, it is possible to inform the outside managers whether the earthquake is a dangerous phase or an earthquake occurs but the level of attention is lower than the dangerous level.

In the case of a dangerous step, the breaker is sequentially blocked to protect the transformer, and the breaker is sequentially restored according to a control signal received from the outside through communication means to prevent damage due to the inrush current. It is possible to prevent the unit from being damaged by vibration or short circuit.

In addition, when measuring the degree of shaking of the transformer unit up and down, using the first distance measuring sensor attached to the bottom of the transformer unit and the second distance measuring sensor attached to the upper surface of the transformer unit double measurement, the measured value is a set value It is measured and reported accurately without error by applying the method of transmitting whether the earthquake is a dangerous phase only when it is observed repeatedly for a certain period of time, or whether the earthquake has occurred but is a caution level that is lower than the dangerous level. You can do it.

Figure 1 is a side cross-sectional view showing a ground transformer with a conventional seismic function
Figure 2 is a front sectional view showing a ground transformer with a conventional seismic function
Figure 3 is a circuit diagram of a conventional ground transformer with a seismic function
4 and 5 is a reference diagram showing the action of the ground transformer with a conventional seismic function
Figure 6 is a side cross-sectional view showing a second embodiment of a conventional ground transformer with a seismic function
Figure 7 is a plan view showing a second embodiment of the ground transformer with a conventional seismic function
8 is a circuit diagram of a second embodiment of a ground transformer with a conventional earthquake resistance function;
9 is a reference diagram showing the operation of the second embodiment of the ground transformer with a conventional seismic function
Figure 10 is a side cross-sectional view showing a third embodiment of the ground transformer with a conventional seismic function
11 is a functional block diagram of a ground transformer with a seismic function that can detect the movement of the transformer during the earthquake according to the present invention to propagate the dangerous situation step by step
Figure 12 is a side cross-sectional view showing a ground transformer with a seismic function that can detect the movement of the transformer during the earthquake according to the present invention to propagate the dangerous situation step by step
Figure 13 is a state in which a plurality of distance measuring sensors are mounted on the bottom and top of the transformer unit constituting the ground transformer with a seismic function that can detect the movement of the transformer when the earthquake occurs according to the present invention to propagate the dangerous situation step by step Conceptual diagram
14 is a state in which four second distance measuring sensors are mounted on an upper surface of a transformer unit constituting a ground transformer having a seismic function capable of detecting a movement of a transformer and propagating a dangerous situation step by step when an earthquake occurs according to the present invention. A plan view (A) and a bottom view (B) showing a state in which four first distance measuring sensors are mounted on the bottom of the transformer unit.

Advantages and features of the present invention, and a method of achieving them will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

In this specification, the embodiments are provided so that the disclosure of the present invention may be completed, and a person of ordinary skill in the art may completely notify the scope of the present invention.

And the present invention is defined only by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well known techniques are not described in detail in order to avoid obscuring the present invention.

In addition, the same reference numerals throughout the specification refer to the same components, and the terminology (discussed) used herein is for the purpose of describing the embodiments are not intended to limit the invention.

In this specification, the singular forms "a", "an" and "the" include plural unless the context clearly dictates otherwise, and the elements and acts mentioned as "comprising" include, do not exclude the presence or addition of one or more other components and acts. .

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used as meanings that can be commonly understood by those skilled in the art.

In addition, the terms defined in the commonly used dictionary are not ideally or excessively interpreted unless they are defined.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

The same reference numerals as in the prior art are used for the same configuration as the prior art, and detailed descriptions of components overlapping with the prior art are omitted.

11 to 14, the transformer protection device that can block the circuit breaker according to the dangerous situation in the event of an earthquake according to the present invention is fixed foundation 10, lower foundation 20, upper foundation 30, transformer unit (C), the primary circuit breaker 170, the secondary circuit breaker 180, sequence management means 190, earthquake detection sensor 100, a plurality of auxiliary attenuation means 160, a plurality of first distance measuring sensor 210 ), A plurality of second distance measuring sensors 220, communication means 230 and the control means 110.

The power provided through the power lead-in is transformed through the transformer unit C to be sent to the load side. At this time, the primary circuit breaker 170 connected to the primary side of the transformer unit C and the secondary circuit breaker 180 connected to the secondary side of the transformer unit C in order to cut off and restore the power provided to the transformer unit C. Configure the breaker stream to include.

The primary circuit breaker 170 may be configured as a vacuum circuit breaker (VCB) or an air circuit breaker (ACB). When the primary circuit breaker 170 is a VCB, the secondary circuit breaker 180 may be an ACB or a molded case circuit (MCCB). Breaker), and when the primary breaker 170 is an ACB, the secondary breaker 180 may be configured as an MCCB. The secondary breaker 180 may be configured in plurality.

The sequence manager 190 blocks or activates the primary circuit breaker 170 and the secondary circuit breaker 180 sequentially.

Fixed base 10 is composed of a concrete material and the upper surface is provided with a lower guide rail 11 extending in the front and rear direction. The fixing base 10 is installed in a square block shape, the upper surface of which is fixed to the ground.

In this case, the fixing base 10 is configured such that the area of the upper surface is larger than that of the outer case B, and the outer case B is fixed to the upper surface of the fixing base 10.

The lower guide rails 11 are provided on both sides of the upper surface of the fixed foundation 10 so as to be laterally spaced apart from each other.

The lower foundation 20 is slidably coupled to the lower guide rail 11 in the front-rear direction and has an upper guide rail 21 extending in the lateral direction.

The lower foundation 20 is formed in the form of a rectangular metal plate of high strength, and is formed in the shape of a bar extending in the front and rear direction on both lower sides so as to be slidable in the front and rear directions on the upper surface of the lower guide rail 11. The combined lower slide block 22 is provided.

The lower slide block 22 is provided to be spaced apart from each other to correspond to the interval of the lower guide rail 11, the lower rack gear 23 on the side of the lower slide block 22 on one side of the front and rear directions It is formed to extend.

The upper guide rails 21 are provided on the upper surface of the lower foundation 20 so as to be spaced apart from each other in the front and rear directions.

The upper foundation 30 is slidably coupled to the upper guide rail 21 in the lateral direction, and the transformer unit C is installed on an upper surface thereof.

The upper base 30 is configured in the form of a rectangular metal plate of high strength, and is formed in a bar shape extending laterally on both sides of the lower side so as to be able to slide laterally on the upper surface of the upper guide rail 21. The combined upper slide block 31 is provided.

The upper slide block 31 is provided so as to be spaced apart from each other in the front and rear directions so as to correspond to the gap of the upper guide rail 21, the upper rack gear 32 on the front of the upper slide block 31 located in the rear It is formed to extend laterally.

At this time, the area of the lower foundation 20 and the upper foundation 30 is configured to be smaller than the inner area of the outer case (B), the lower foundation 20 and the upper foundation 30 is the lower guide rail 11 ) And the upper guide rail 21 may be advanced back and forth in the front and rear and left and right directions.

In addition, the lower guide rails 11 and the upper guide rails 21 are preferably formed long enough to accommodate the vibration width of the lower base 20 and the upper base 30 to vibrate at a magnitude of 6 or more magnitude. Do.

The earthquake detection sensor 100 detects the vibration of the fixed base 10 due to an earthquake and outputs a signal, which is generally widely used, and thus a detailed description thereof will be omitted.

A plurality of auxiliary attenuation means 160 is provided between the upper base 30 and the transformer unit (C) to attenuate the vertical vibration transmitted to the transformer unit (C).

The auxiliary attenuation means 160 includes a damper 161 provided between the upper base 30 and the transformer unit C so as to extend in the vertical direction, and a compression coil spring 162 provided outside the damper 161. It consists of

Therefore, when an earthquake in the up and down direction occurs, the damper 161 and the compression coil spring 162 are compressed and stretched to attenuate the vibration in the up and down direction.

Distance measuring sensors are sensors that measure the distance between a sensor and an object. You can send infrared light to the object you want to measure, calculate the time it takes to bounce back and see the distance. The infrared distance measuring sensor measures and outputs the analog intensity of the infrared ray measured by the receiver.

The distance measuring sensor includes a light emitting unit for transmitting infrared rays and a light receiving unit for receiving infrared rays reflected from an object. The light emitting part is made of “diode” LED which can transmit infrared rays, and the light receiving part is made of transistor. Transistors are devices that act as switches that may or may not allow current to flow through the semiconductor. Use this device to measure the distance. When the infrared light is received at the light receiver, the transistor can flow current. At this time, the amount of current flowing varies according to the amount of infrared rays received, and the output voltage is different.

Referring to FIG. 12, a plurality of first distance measuring sensors 210 are attached to the bottom surface of the transformer unit C and measure a distance to the upper base 30 below them. As described above, a light emitting unit capable of transmitting infrared rays and a light receiving unit receiving infrared rays are included. The infrared rays transmitted from the light emitting part toward the ground are reflected by the upper base 30 and received by the light receiving part.

A plurality of second distance measuring sensor 220 is attached to the upper surface of the transformer unit (C) to measure the distance to the outer case (B) thereon. Like the first distance measuring sensor 210, the light emitting unit capable of transmitting infrared rays and the light receiving unit receiving infrared rays are included. The infrared rays transmitted from the light emitting part in the opposite direction to the ground are reflected by the outer case B and received by the light receiving part.

Communication means 230 is attached to the inside or outside of the outer case (B) to transmit data to the external management server 240 and the manager terminal 250. The communication means 230 may transmit data wirelessly or by wire.

The control unit 110 detects the occurrence of the earthquake by receiving the signal from the earthquake detection sensor 100, the measured value of the first distance measuring sensor 210 is measured smaller than the first set value, the second distance When it is repeatedly detected that the measured value of the measuring sensor 220 is greater than the second set value, and transmits an earthquake to the outside through the communication means 230, the dangerous phase, and through the sequence management means 190 When the power supply to the transformer unit (C) is sequentially blocked, and receives a control signal from the external management server 240 through the communication means 230 during the earthquake release, the primary breaker 170 and the secondary breaker 180 Restore sequentially to ensure stable power supply. After the earthquake is released, the management server 240 may determine whether to recover the primary breaker 170 and the secondary breaker 180 and transmit a recovery control signal. For example, the first set value may be set to 10 cm, and the second set value may be set to 20 cm.

When an earthquake occurs and the vertical vibration occurs, the vertical vibration may affect the transformer unit C, but the plurality of auxiliary attenuation means 160 located between the transformer unit C and the upper foundation 30 may include a transformer unit ( Attenuate the up and down vibration transmitted to C). That is, the compression coil spring 162 is compressed and stretched while repeatedly moving up and down while attenuating up and down vibrations.

When the compression coil spring 162 repeatedly moves up and down, the light emitting unit of the first distance measuring sensor 210 periodically emits infrared rays to the ground direction, and the emitted infrared rays are reflected from the upper base 30 to the light receiving unit. Is received. Similarly, the light emitting unit of the second distance measuring sensor 220 periodically transmits infrared rays in the opposite direction to the ground, and the transmitted infrared rays are reflected by the outer case B and received by the light receiving unit.

The first distance measuring sensor 210 repeatedly measures the distance through this process, and a value smaller than the first set value ex, 10 cm, which is measured in advance, is repeatedly measured, and the second distance measuring sensor ( If the measured value of 220 is larger than the preset second set value (ex, 20 cm) repeatedly measured, since the vibration in the vertical direction is severe due to the earthquake and the transformer unit C is shaken a lot, the transformer unit C ) Is a dangerous situation.

However, although the control means 110 detects the occurrence of the earthquake by receiving a signal from the earthquake detection sensor 100, the measured value of the first distance measuring sensor 210 is measured larger than the first set value (ex, 10cm) When the measured value of the second distance measuring sensor 220 is repeatedly measured to be smaller than the second set value (ex, 20 cm), the vertical vibration is detected by the earthquake, but the degree of shaking of the transformer unit C is detected. It means that is not large, and transmits that the earthquake occurred in the outside through the communication means 230, but the attention stage is lower than the dangerous level.

12 and 13, four first distance measuring sensors 210 are attached to the bottom of the transformer unit C, one adjacent to the auxiliary attenuating means 160, for a total of four (211, 212, 213, 214). The second distance measuring sensor 220 is attached to one of the four corners of the upper surface of the transformer unit (C) is composed of a total of four (221, 222, 223, 224).

The control unit 110 measures all of the measured values of the four first distance measuring sensors 211, 212, 213 and 214 to be smaller than the first set value, and the four second distance measuring sensors 221, 222, 223, If it is repeatedly detected for a predetermined time that all of the measured values of 224 is greater than the second set value is transmitted through the communication means 230 that the earthquake occurs outside the dangerous phase, the sequence management means 190 To turn off the power sequentially.

In this case, since up and down vibrations are severe as a whole rather than one of the transformer unit C, all of the measured values of the four first distance measuring sensors 211, 212, 213, and 214 are measured smaller than the first set value. When all of the measured values of the second distance measuring sensors 221, 222, 223, and 224 are larger than the second set value, it is repeatedly detected for a predetermined time.

In addition, the control unit 110 measures all of the measured values of the four first distance sensors 211, 212, 213, and 214 to be greater than the first set value, and the four second distance sensors 221, 222, If it is repeatedly detected for a predetermined time that all of the measured values of the 223, 224 is smaller than the second set value is transmitted through the communication means 230 that the earthquake occurred in the outside, but the warning level is lower than the dangerous level . One of the transformer unit (C), but not the overall vibration up and down, it means that the degree of shaking of the transformer unit (C) is not large.

In addition, the control means 110 may operate as follows.

The control means 110 is a measured value of a position symmetrical with respect to one another based on the center of the bottom surface of any one v1 of the four first distance measuring sensors 211, 212, 213, and 214 or the transformer unit C. Any two (v1, 2) is measured smaller than the first set value, and based on the center of the upper surface of the transformer unit (C) of the measured values of the four second distance measuring sensors (221, 222, 223, 224) Two measured values v1 'and 2' in the same direction as the two v1 and 2, based on the measured value v1 'in the same direction as the one v1 or the center of the upper surface of the transformer unit C. If the measured value larger than the second set value is repeatedly detected for a predetermined time, an external earthquake occurs through the communication means 230 to transmit that it is a dangerous step, and the power is sequentially blocked through the sequence management means 190.

Referring to FIGS. 13 and 14, one of the measured values of four first distance measuring sensors 211, 212, 213, and 214 is v1 measured by the first distance measuring sensor 212. ), And any two of the measured values (v1, 2) at positions symmetrical with respect to the bottom center O1 of the transformer unit C are mutually based on the bottom center O1 of the transformer unit C. Assume that the measured values v1 and 2 are measured by the two first distance sensors 212 and 213 located at symmetrical positions.

In addition, among the measured values of the four second distance measuring sensors 221, 222, 223, and 224, the measured value v1 in the same direction as the one v1 based on the upper center O2 of the transformer unit C. ') Refers to a value measured by the second distance measuring sensor 222 positioned in the same direction as the first distance measuring sensor 212.

In addition, the two measurement values (v1, 2 ') in the same direction as the two (v1, 2) relative to the center of the upper surface of the transformer unit (C) is the same as the two first distance measuring sensors (212, 213) Refers to a value measured by two second distance measuring sensors 222 and 223 positioned in the direction.

The measured values measured by the four sensors constituting the first distance measuring sensor 210 and the measured values measured by the four sensors constituting the second distance measuring sensor 220 are both the first set value and the second set value. Even if the condition is not satisfied, if the measured value measured by the distance measuring sensor located in the same direction on the bottom and the upper surface of the transformer unit C is measured smaller than the first set value, and larger than the second set value, the transformer unit C is measured. It is determined that either one of the direction is shaking more than the other direction, or is shaking greatly in both directions with respect to the center and transmits that the earthquake occurs outside the communication means 230 is a dangerous step.

In addition, the first distance measuring sensor 210 and the second distance measuring sensor 220 may be configured as follows.

Referring to FIGS. 13 and 14, the first distance measuring sensors 211, 212, 213, and 214 are located near the inside of the auxiliary damping means 160 based on the bottom center O1 of the transformer unit C. Referring to FIGS. It is attached one by one and consists of a total of four, the distance from the bottom center (01) of the transformer unit (C) to the first distance measuring sensors (211, 212, 213, 214) is at the bottom center (O1) of the transformer unit (C) Shorter than the distance to the auxiliary attenuation means 160, the second distance measuring sensor (221, 222, 223, 224) is attached to one of the four corners of the upper surface of the transformer unit (C) consists of a total of four.

Specifically, the distance D1 from the bottom center O1 of the transformer unit C to the first distance measuring sensors 211, 212, 213, and 214 is at the top center O2 of the transformer unit C. It is shorter than the distance D2 to the second distance measuring sensors 221, 222, 223, and 224.

The control means 110 may be any one of the measured values of the four second distance measuring sensors 221, 222, 223, and 224 (for example, a value measured by the second distance measuring sensor 222) or Any two of the measured values (v1, 2 ') (for example, the second distance measuring sensor 222 and the second distance measuring sensor 223 at positions symmetrical with respect to the center of the upper surface O1 of the transformer unit C) are The measured value) is greater than the second set value, and is based on the bottom center O1 of the transformer unit C among the measured values of the four first distance measuring sensors 211, 212, 213, and 214. Measured value v1 in the same direction as one v1 '(for example, the value measured by the first distance measuring sensor 212 in the same direction as the second distance measuring sensor 222) or the bottom center of the transformer unit C. A first distance located in the same direction as the two distance measuring sensors 222 and 223 (for example, the second distance measuring sensors 222 and 223) in the same direction as the two (v1, 2 ') based on (O1). Measuring sensors 212 and 213 measure Two values) are measured to be larger than the first set value, but if repeatedly detected for a predetermined time to fall within the range of the first set value to the first set value + α, an earthquake is generated through the communication means 230. Transmits the dangerous step, and sequentially cuts power through the sequence managing means 190.

As shown in FIG. 14, the distance D1 from the bottom center O1 of the transformer unit C to the first distance measuring sensors 211, 212, 213, and 214 is the upper center O2 of the transformer unit C. ) May be shorter than the distance D2 from the second distance measuring sensors 221, 222, 223, and 224.

The distance D1 from the bottom center O1 of the transformer unit C to the first distance measuring sensors 211, 212, 213, and 214 and the second distance measuring sensor from the center O2 of the upper surface of the transformer unit C. When the distances D2 to 221, 222, 223, and 224 are the same, the measured values measured by the first distance measuring sensors 211, 212, 213, and 214 are measured to be smaller than the first set value, and the second Although the transformer unit C determines that the transformer unit C is in a dangerous situation when the measured value measured by the distance measuring sensors 221, 222, 223, and 224 is greater than the second set value, the transformer unit C The distance D1 from the bottom center O1 to the first distance sensors 211, 212, 213, and 214 is the second distance measuring sensor 221, 222, from the center O2 of the top surface of the transformer unit C. When the distance D2 is shorter than the distances 223 and 224, the value measured by the second distance measuring sensor 222 located on the upper surface of the transformer unit C or the value measured by the second distance measuring sensors 222 and 223 Transformer unit even when measured larger than the second set value The value measured by the first distance measuring sensor 212 or the value measured by the first distance measuring sensors 212 and 213 on the bottom of (C) may not be measured smaller than the first set value.

Because, when either side is shaken up and down by the vibration based on the bottom center (O1) or both sides are shaken by the vibration by the vibration based on the bottom center (O1), more precisely, based on the bottom center (O1) The distance value measured by the first distance measuring sensor (211, 212, 213, 214) located at the distance D1 from the bottom center O1 when the transformer unit C is shaken to both sides by vibration is slightly longer than D1. This is because the measurement will be slightly longer than when measured with the position at.

The first set value is the same distance as the second distance measuring sensor (221, 222, 223, 224) the first distance measuring sensor (211, 212, 213, 214) relative to the center (O1) of the transformer unit (C) The distance D1 from the center O1 of the transformer unit C to the first distance measuring sensors 211, 212, 213, 214 is the center of the transformer unit C because it is a value based on when it is installed at the position of. If it is shorter than the distance D2 from O2 to the second distance measuring sensors 221, 222, 223 and 224, the value is corrected by the first set value + α.

Therefore, the value measured by the first distance measuring sensor 212 or the two values measured by the first distance measuring sensors 212 and 213 are measured to be larger than the first setting value, but the range is between the first setting value and the first setting value + α. When it is repeatedly detected for a certain time to belong to the earthquake occurs through the communication means 230 transmits that the dangerous phase, and the sequence management means 190 sequentially cut off the power.

And α can be calculated by the following equation 1.

α = (D2-D1) / D1 × 100 Equation 1

For example, if D1 = 100 cm and D2 = 105 cm, α = (105-100) / 100 × 100 = 5 cm

For example, if it is repeatedly detected that the value measured by the first distance measuring sensor 212 or the two values measured by the first distance measuring sensors 212 and 213 falls within the range of the first setting value to the first setting value + 5 cm, the communication is performed. An earthquake may be transmitted to the outside through the means 230, indicating that the earthquake is a dangerous step.

The control means 110 recovers power from the primary circuit breaker 170 to the secondary circuit breaker 180 through the sequence management means 190 according to the control signal received through the communication means 230, but the secondary circuit breaker. When 180 is configured in plural, the secondary breakers may be sequentially restored to prevent damage due to inrush current.

The control unit 110 may control the first circuit breaker 170 to be started and restored through the sequence manager 190, and then the second circuit breaker 180 may be started and restored. As such, the sequence management means 190 sequentially recovers the primary circuit breaker 180 from the primary circuit breaker 170 to the secondary circuit breaker 180, so as to start the secondary circuit breaker 180 first or the primary circuit breaker 170 and the secondary circuit breaker. Simultaneously recover 180 to prevent instantaneous inrush current from occurring on the primary breaker 170 side, through which the primary breaker 170 is damaged due to the inrush current or the line and the primary breaker 170 Sparks can be prevented from occurring at the contacts.

In addition, when the secondary circuit breakers 180 are configured in plural, the control unit 110 controls the sequence managing unit 190 to operate the secondary circuit breakers 180 at predetermined time intervals after the primary circuit breaker 170 is started. You can start it up and restore it.

As a result, when the secondary circuit breakers 180 connected to the load side are simultaneously started, the inrush current rapidly increases, whereas the inrush currents generated by the primary circuit breakers 170 when the plurality of secondary circuit breakers 180 are individually operated. It can greatly reduce the primary circuit breaker 170 also can prevent the spark generated at the contact point of the line and the breaker stream.

As described above, the control means 110 sequentially blocks and restores the breakers 170 and 180 through the sequence management means 190, so that the charging power remaining in the transformer unit C whose durability is weakened due to the earthquake. However, it can be easily protected from inrush current.

In summary, not only when the transformer unit C is greatly shaken up and down by the vibration of the earthquake, but when either one of the transformer units C loses its center and shakes up and down greatly and is based on the center of the transformer unit C. When a large shaking to both sides through the communication means 230 to inform the outside manager that the earthquake is a dangerous situation, the sequence breaker means 190 through the primary breaker 170 and the secondary breaker 180 in sequence Can be blocked and recovered.

With this system, when the earthquake occurs, the transformer is unconditionally determined to be a dangerous situation, so you do not have to take any action quickly.When the control means informs you that it is a dangerous step, it automatically shuts off the primary circuit breaker and the secondary circuit breaker. When receiving, the transformer can be protected by sequentially recovering the primary breaker and the secondary breaker, so that it is easy for the manager to manage the transformer facility and is quite economical in terms of the management cost.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features, The embodiments are to be understood in all respects as illustrative and not restrictive.

In addition, the scope of the present invention is specified by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Should be interpreted as

A. Foundation B. Outer Case
C. Transformer Unit 10. Fixed Foundation
20. Lower Foundation 30. Upper Foundation
40. Lower measuring instrument 50. Upper measuring instrument
60. Lower position adjusting means 70. Upper position adjusting means
80. Lower braking means 90. Upper braking means
100. Earthquake Sensing Sensor 110. Control Means
120. Proximity sensor 130. Warning means
140. Air injection nozzle 150. Air supply means
160. Secondary damping means 170. Primary breaker
180. Secondary breaker 190. Sequence control measures
210. First distance measuring sensor 220. Second distance measuring sensor
230. Communication means 240. Management server
250. Administrator terminal

Claims (9)

Transformer unit;
A primary circuit breaker connected to the primary side of the transformer unit;
A secondary circuit breaker connected to the secondary side of the transformer unit;
Sequence management means for sequentially blocking or starting the primary breaker and the secondary breaker;
Fixed base composed of concrete material and having a lower guide rail extending in the front and rear direction on the upper surface;
A lower base slidably coupled to the lower guide rail in a forward and backward direction and having an upper guide rail extending laterally on an upper surface thereof;
An upper foundation slidably coupled to the upper guide rail and having the transformer unit C installed on an upper surface thereof;
An earthquake detection sensor provided in the fixed base to detect the occurrence of an earthquake;
A plurality of auxiliary attenuating means provided between the upper base and the transformer unit C to reduce the vertical vibration transmitted to the transformer unit C;
A plurality of first distance measuring sensors attached to a bottom surface of the transformer unit C to measure a distance to an upper basis under the transformer;
A plurality of second distance measuring sensors attached to an upper surface of the transformer unit C to measure a distance to an outer case B thereon;
Communication means attached to the inside or outside of the outer case (B) to transmit data to an external management server and a manager terminal, and to receive a control signal; And
Receiving a signal from the earthquake detection sensor to detect the occurrence of an earthquake, the measured value of the first distance measuring sensor is measured smaller than the first set value, the measured value of the second distance measuring sensor is larger than the second set value When the measurement is repeatedly detected, an earthquake is generated through the communication means to transmit a dangerous phase, the power is sequentially cut off through the sequence management means, and the earthquake detection signal is detected to detect the occurrence of the earthquake. When the measured value of the first distance measuring sensor is measured to be greater than the first set value and the measured value of the second distance measuring sensor is measured to be smaller than the second set value, the earthquake is externally transmitted through the communication means. The control according to the dangerous situation, characterized in that it comprises a control means for transmitting that the caution phase is lower than the dangerous stage, but occurred Transformer protection to shut off the machine.
The method of claim 1,
The primary circuit breaker is a transformer protection device that can block the circuit breaker according to a dangerous situation in the event of an earthquake, characterized in that the VCB or ACB.
The method of claim 2,
When the primary circuit breaker is VCB, the secondary circuit breaker is ACB or MCCB, and when the primary circuit breaker is ACB, the secondary circuit breaker is MCCB. Transformer protection.
The method of claim 1,
The first distance measuring sensor is attached to the bottom of the transformer unit (C) one by one near the auxiliary attenuating means and consists of a total of four,
The second distance measuring sensor is attached to one of the top four corners of the transformer unit (C) consists of a total of four,
The control means repeatedly measures for a predetermined time that all of the measured values of the four first distance measuring sensors are smaller than the first set value, and that all of the measured values of the four second distance measuring sensors are larger than the second set value. When detected as an earthquake occurs outside the communication means through the communication means that the dangerous phase, the sequence management means to cut off the power in sequence,
The control means repeatedly measures for a predetermined time that all of the measured values of the four first distance measuring sensors are measured to be larger than the first set value, and that all of the measured values of the four second distance measuring sensors are smaller than the second set value. When the earthquake occurs when the external earthquake is detected through the communication means, but a transformer protection device that can block the breaker according to the dangerous situation when the earthquake occurs, characterized in that the transmission of a caution level lower than the dangerous level.
The method of claim 1,
The first distance measuring sensor is attached to the bottom of the transformer unit (C) one by one near the auxiliary attenuating means and consists of a total of four,
The second distance measuring sensor is attached to one of the top four corners of the transformer unit (C) consists of a total of four,
The control means includes any one (v1) of the measured values of the four first distance measuring sensors or any two (v1, 2) of the measured values symmetric with respect to each other with respect to the bottom center of the transformer unit (C). 1 is measured smaller than the set value, the measured value (v1 ') or the transformer unit in the same direction as any one (v1) based on the center of the upper surface of the transformer unit (C) of the measured values of the four second distance measuring sensor ( If the two measurement values (v1,2 ') in the same direction as the two (v1,2) are measured to be larger than the second set value with respect to the center of the upper surface of the C) for a predetermined time repeatedly the communication means Transmit that the earthquake occurs outside the dangerous stage through, and the transformer protection device that can block the breaker according to the dangerous situation in the event of an earthquake, characterized in that the power is sequentially cut through the sequence management means.
The method of claim 1,
The first distance measuring sensor is attached to the inner side of the auxiliary attenuating means one by one based on the center of the bottom of the transformer unit (C) consists of a total of four, from the center of the bottom of the transformer unit (C) to the first distance measuring sensor The distance of is shorter than the distance from the center of the bottom of the transformer unit (C) to the auxiliary damping means,
The second distance measuring sensor is attached to the four corners of the transformer unit (C) one by one to the transformer protection device that can block the breaker according to the dangerous situation, characterized in that composed of a total of four.
The method of claim 6,
The distance D1 from the center of the bottom surface of the transformer unit C to the first distance measuring sensor is shorter than the distance D2 from the center of the top surface of the transformer unit C to the second distance measuring sensor,
The control means may be any one of the measured values of the four second distance measuring sensors (v1 ') or any two (v1, 2') of the measured values symmetrical with respect to the center of the upper surface of the transformer unit (C). Is measured to be larger than the second set value, and the measured value v1 or the transformer in the same direction as the one v1 'based on the bottom center of the transformer unit C among the measured values of the four first distance measuring sensors. The two measured values v1 and 2 in the same direction as the two v1 and 2 'are measured to be larger than the first set value based on the bottom center of the unit C, but the first to first set values are measured. When it is detected repeatedly within a range of + α for a predetermined time, the earthquake occurs outside the communication means through the communication means that the dangerous phase, and the sequence management means to cut off the power sequentially characterized in that the risk of occurrence Transformers that can break the breaker depending on the situation Protection.
The method of claim 7, wherein
Α is as follows
α = (D2-D1) / D1) × 100 Equation 1
Transformer protection device that can break the breaker according to the dangerous situation in case of earthquake, characterized in that calculated by the formula 1.
The method of claim 1,
The control means recovers power from the primary circuit breaker to the secondary circuit breaker through the sequence management means according to the control signal received through the communication means, and sequentially recovers each secondary circuit breaker when a plurality of secondary circuit breakers are configured. Transformer protection device that can block the breaker according to the dangerous situation in the event of an earthquake, characterized in that to prevent damage due to inrush current.

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