WO2019190049A1

WO2019190049A1 - System for managing circuit breaker in distribution switchboard

Info

Publication number: WO2019190049A1
Application number: PCT/KR2019/001728
Authority: WO
Inventors: 최지현
Original assignee: 엘에스산전 주식회사
Priority date: 2018-03-28
Filing date: 2019-02-13
Publication date: 2019-10-03
Also published as: KR20190113405A; KR102034894B1

Abstract

A system for managing a circuit breaker in a distribution switchboard according to an embodiment of the present invention comprises: a vibration detection sensor provided in a distribution switchboard panel; and a control apparatus for performing a first test for checking whether a switch of each of the circuit breakers operates, on the basis of a first test request of circuit breakers included in the distribution switchboard panel and vibration detection data acquired using the vibration detection sensor, wherein the control apparatus: receives the first test request of the circuit breakers included in the distribution switchboard panel; controls the switches of the respective circuit breakers to sequentially operate, in response to the received first test request; acquires vibration detection data by using the vibration detection sensor whenever the switch of each of the circuit breakers operates; and performs the first test on the basis of the acquired vibration detection data.

Description

Breaker management system in switchboard

The present invention relates to a circuit breaker management system for managing a circuit breaker installed in a distribution panel.

In the switchboard, a number of power devices for power conversion, transmission, and measurement are arranged. Among these, a circuit breaker disposed on a line to which electric power is transmitted interrupts the line when an error element such as overcurrent, overvoltage, undervoltage, short circuit, or ground fault is detected on the line. By such a breaker, the switchboard and the loads or various systems connected thereto can be protected from error elements.

The switchboard panel is configured to be opened and closed by a door or the like. However, since the switchboard panel is normally kept in the closed state, it is difficult for the administrator or the user to grasp the situation inside the switchboard panel until the door is opened.

In addition, in order to block a specific line, a control device such as a gateway or a data logger may output a control signal for switching off the breaker disposed in the specific line. However, when the breaker does not normally receive the control signal, or when a switch breakdown occurs, an error that the switch cannot be turned off may occur. If the line is not normally cut because the switch of the breaker is not normally turned off, damage such as line damage or fire may occur as the overcurrent continuously flows into the corresponding line.

Therefore, the administrator or user needs to test periodically or aperiodically whether the breaker operates normally.

However, in the past, it is common to test the circuit breaker manually by an administrator or a user. Therefore, there is a problem that the test is very cumbersome, and the test time is difficult to reduce.

The problem to be solved by the present invention is to provide a breaker management system in a switchboard that can easily test whether the breakers disposed in the switchgear panel normal operation.

The breaker management system in a switchboard according to an embodiment of the present invention, the breaker based on the vibration detection sensor provided in the switchboard panel, the first test request of the breakers included in the switchboard panel and the vibration detection data of the vibration detection sensor And a control device configured to perform a first test for confirming whether each switch is in operation, wherein the control device receives a first test request of circuit breakers included in the switchboard panel, and responds to the received first test request. And controlling the switches of each of the breakers to be sequentially operated, obtaining vibration sensing data using the vibration sensing sensor every time the switches of each of the breakers are operated, and based on the obtained vibration sensing data. Perform the test.

The control device may stop the first test and output an error notification of the circuit breaker having the specific switch when it is detected that the specific switch is not operated.

The control device may output a test normal notification indicating that the test result is normal when it is confirmed that the switch of each of the breakers is in normal operation.

The control device may transmit the error notification or the test normal notification to a terminal connected to the control device.

According to an embodiment, the control apparatus includes a gateway included in the switchboard panel and connected to each of the breakers, wherein the gateway sequentially controls a control signal for operating a switch of each of the breakers to each of the breakers. Can transmit

According to an embodiment, the vibration sensor may be included in the gateway, and the gateway may check whether each of the breakers is operated based on the obtained vibration detection data.

According to an embodiment, the control device may distinguish between on and off of the switch according to the vibration direction included in the vibration detection data.

The control device may distinguish on / off of the switch of each of the breakers based on the arrangement direction of each of the breakers and the vibration direction included in the vibration sensing data.

According to an embodiment, the gateway may further include a noise detection sensor for acquiring noise detection data when the switch operation of each of the breakers is performed. You can check the operation of the switch.

The control device may distinguish on / off of the switch based on the vibration direction included in the vibration sensing data and the size or length of the noise included in the noise sensing data.

The control apparatus may further include a data logger connected to the gateway, wherein the data logger receives the vibration sensing data from the gateway and based on the received vibration sensing data, respectively. You can check whether the switch works.

According to an embodiment, the control device further includes a data logger connected to the gateway, and a server connected to the data logger, wherein the server receives the vibration sensing data from the gateway through the data logger, On the basis of the received vibration detection data, it is possible to check whether each of the breakers is in operation.

The control device may further include a memory configured to store vibration detection data obtained when the switch of each of the breakers is operated.

The control device receives a second test request at a predetermined time after completion of the first test, controls to operate switches of at least two of the breakers in response to the received second test request, and In operation of switches of at least two breakers, obtain vibration detection data using the vibration detection sensor, and based on the obtained vibration detection data and vibration data of each of the at least two breakers stored in the memory, At least two breakers can check whether each switch is in operation.

According to various embodiments of the present disclosure, a breaker management system in a distribution board automatically tests whether a breaker switch is normally operated using a vibration sensor and a noise sensor, and provides a test result to an administrator or a user. As a result, the administrator or the user can eliminate the trouble of manually testing whether the breaker switch is normally operated, and the time required for the test can be reduced.

In addition, the administrator or the user can easily test the breakers in the switchboard panel with a simple input, thereby improving usability.

The breaker management system in the switchboard stores the vibration detection data for each of the switches during the initial test, and then operates the switches simultaneously using the stored vibration detection data for the test. As a result, the time required for the test can be further reduced.

1 is a schematic diagram illustrating a circuit breaker management system in a switchboard according to an exemplary embodiment of the present invention.

2 is a schematic block diagram of a gateway included in a breaker management system in a switchboard according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating an operation of performing an initial test for breakers by a breaker management system in a switchboard according to an exemplary embodiment of the present invention.

4 is an exemplary diagram illustrating an operation of a gateway transmitting a control signal for operating a switch of a specific breaker.

FIG. 5 is a diagram illustrating an example of a waveform detected by a vibration sensor when a switch of a specific circuit breaker receiving the control signal of FIG. 4 normally operates.

FIG. 6 is a diagram illustrating an example of a waveform detected by a vibration sensor when a switch of a specific circuit breaker receiving the control signal of FIG. 4 is inoperative.

FIG. 7 is a diagram illustrating an example of an error notification provided when a switch malfunction of a specific breaker is detected according to the example illustrated in FIG. 6.

FIG. 8 is a flowchart illustrating an operation in which a breaker management system in a switchboard performs a test of breakers using the vibration sensing data stored for each of the switches of the breakers.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

Referring to FIG. 1, a breaker management system (hereinafter, referred to as a 'breaker management system') in a switchboard includes a plurality of breakers 11 and relays provided in the switchboard panel 10. ), A meter 13, and a gateway 14, a data logger 20, a server 30, and the like. Since the breaker management system is not composed of only the components shown in FIG. 1, the breaker management system may include more or fewer configurations.

A plurality of breakers 11 may be disposed in the switchboard panel 10. The number of breakers disposed inside the switchboard panel 10 may be determined based on the number of lines branching inside the switchboard panel 10. For example, each of the breakers 11 may be fastened and fixed to a slot in the switchboard panel 10.

Each of the circuit breakers 11 may protect the switchboard and the load or various systems connected thereto by blocking the line when an element such as an overcurrent, overvoltage, undervoltage, short circuit, or ground fault is detected in the line. The breakers 11 may be disposed to correspond to each of the tracks one by one to perform a blocking operation of the corresponding track. Each of the breakers 11 may be implemented as an air circuit breaker (ACB), a molded case circuit breaker (MCCB), a molded circuit breaker (MCB), or the like. In general, the ACB with the highest allowable current may be placed on the upper line, and the MCB with the lowest allowable current may be placed on the lower line.

The breakers 11 are disposed on each of the branched lines in the switchboard panel 10, and thus the breakers 11 may also have a line relationship according to an ancestry relationship between the lines.

Each of the breakers 11 may include a switch (not shown). When each of the breakers 11 is switched off, the arranged line is cut off to stop the power supply, and when the switch is turned on, the power supply may be resumed. For example, each of the breakers 11 may turn the switch on / off based on a control signal received from the gateway 14. According to an embodiment, an administrator or a user may manually operate the switch to turn on / off the switch. The switch may be provided in the form of a physical switch so that the position may be changed when the switch is turned on or off, and a certain level of vibration may occur.

The relay 12 may control to supply or cut off power to a load end such as a motor or an electric motor, and may protect the load end when an accident current such as overcurrent or short circuit current occurs in the current flowing through the load end. The relay 12 may be implemented as an electronic motor protection relay (EMPR), but is not limited thereto.

The meter 13 can measure and monitor the amount of power in the power system of the switchboard. For example, the meter 13 may be implemented as a digital integrated meter (GIMAC), but is not limited thereto.

The gateway 14 may be provided in the switchboard panel 10. According to an embodiment, the gateway 14 may be disposed outside the switchboard panel 10.

The gateway 14 is connected to the breakers 11, the relay 12, and the meter 13 in the switchboard panel 10 according to a wired or wireless communication scheme (for example, RS485, etc.). The gateway 14 may receive various types of information related to the operation state of the switchboard from the breakers 11, the relays 12, and the meters 13. In addition, the gateway 14 may transmit the received information to the data logger 20 or the server 30.

In addition, the gateway 14 may receive a control command for the components inside the switchboard panel 10 from the data logger 20 or the server 30. In addition, the gateway 14 may control the

components

11, 12, 13 based on the received control command, or directly generate the control command to control the

components

11, 12, 13.

According to an embodiment, the gateway 14 may be connected to a human machine interface 40. The HMI 40 may be provided on an outer surface of the switchboard panel 10 or on the outside of the switchboard panel 10. The HMI 40 may receive various information related to an operation state in the switchboard panel 10 from the gateway 14 and display the information in a graphic or text form. In addition, the HMI 40 may receive various commands or requests related to the operation of the switchboard from an administrator or a user, and transmit the received commands or requests to the gateway 14. The gateway 14 may process a command or request received from the HMI 40, and output the processing result through the HMI 40.

The data logger 20 may be connected to the gateway 14 and the server 30 through a wired or wireless communication scheme. The data logger 20 receives various information related to the operation of the gateway 14 and the lower devices (the breakers 11, the relay 12, the meter 13, etc.), and receives the received information from the server 30. Can be sent to. In addition, the data logger 20 may transmit a control command received from the server 30 to the gateway 14.

The server 30 may be implemented in the form of a cloud server to integrally manage information in the switchboard panel 10.

The gateway 14, the data logger 20, or the server 30 may correspond to a control device of a breaker management system in a switchboard. Such a control device may control the operation of the

components

11, 12, 13 in the switchboard panel 10.

Such a control device may be connected to the administrator's or user's terminal 60 (for example, a smartphone, a tablet PC, a notebook, a desktop, etc.) through various known communication methods. That is, the control device may transmit various information related to the operation of the switchboard to the terminal 60. In addition, the control device receives a control command for controlling the

components

11, 12, 13 in the switchboard panel 10 from the terminal 60, and generates a control signal based on the received control command. , 12, 13).

On the other hand, when an overcurrent or overvoltage occurs in a specific line while driving the switchboard, the control device may output a control signal for switching off the breaker 11 arranged in the specific line. However, when the circuit breaker 11 does not receive the control signal normally or a switch breakdown occurs, an error that the switch cannot be turned off may occur. When the line is not normally blocked due to the error, there is a fear that overcurrent or overvoltage is maintained and damage such as a failure or fire of the line may occur. However, since an administrator or user may not always monitor whether the breaker is switched off, it may be difficult to immediately identify the occurrence of such an error.

The circuit breaker management system according to an exemplary embodiment of the present invention provides a test function for the control device of the circuit breaker management system to test whether the switch 11 is normally operated, thereby preventing the above-mentioned problems from occurring. can do.

Hereinafter, an embodiment related to the operation of the circuit breaker management system according to an exemplary embodiment of the present disclosure will be described with reference to FIGS. 2 to 8.

In the following figures, it is assumed that the gateway 14 performs a test of the breakers 11. However, in some embodiments, the data logger 20 or the server 30 may perform the test. In this case, the gateway 14 may transmit the vibration detection data obtained by the vibration detection sensor 143 or the noise detection data obtained by the noise detection sensor 144 to the data logger 20 or the server 30. There will be.

Referring to FIG. 2, the gateway 14 includes a communication unit 141, a memory 142, a vibration sensor 143, and a controller 145.

The communication unit 141 includes a gateway 14 and breakers 11, a gateway 14 and a relay 12, a gateway 14 and a meter 13, a gateway 14, a data logger 20, and a gateway ( 14 and the HMI 40 and at least one wired / wireless communication module for enabling communication between the gateway 14 and the terminal 60.

The memory 142 may store various information related to the operation of the gateway 14, information about the

components

11, 12, and 13 included in the switchboard panel 10, and the like. In particular, the memory 142 may store information about a reference waveform of vibration generated when the switch 11 operates the switch (eg, when the switch is turned off). In addition, the memory 142 may store vibration sensing data for each of the switches obtained during the initial test of the breakers 11.

The controller 145 may control the overall operation of the gateway 14. When the controller 145 performs the test on the breakers 11, the controller 145 may output a control signal for operating a switch of each of the breakers 11, and control the vibration detection sensor 143 to obtain vibration detection data. Can be.

The gateway 14 according to an embodiment of the present invention may include a vibration sensor 143. The vibration sensor 143 may be implemented as a MEMS sensor such as an acceleration sensor, but is not limited thereto.

The vibration sensor 143 may be provided in a form embedded in the gateway 14. On the contrary, the vibration sensor 143 is spaced apart from the gateway 14 and fixed to an inner wall of the switchboard panel 10, and may be provided in a form of being connected to the gateway 14 by a cable or the like.

The vibration sensor 143 may detect vibration generated when a state change of the breakers 11 is switched off or on. The controller 145 may detect whether the switch is normally operated based on the vibration detection data acquired by the vibration detection sensor 143.

According to an embodiment, the vibration sensor 143 may detect vibrations in the directions of each axis (for example, X axis, Y axis, and Z axis) of the three-dimensional space to distinguish the on / off of the switch. have. For example, the vibration sensor 143 may check that the switch is turned on when vibration in the X-axis direction is detected. The vibration sensor 143 may determine that the switch is turned off when vibration in the Z-axis direction is detected. The controller 145 may generate or store information on a switch operation corresponding to the vibration direction of the vibration sensor 143.

The vibration direction of the vibration sensor 143 may vary according to the arrangement form (position and direction) of each of the breakers or the arrangement form of the switchboard panels. In this case, the controller 145 may distinguish on / off of the switch of each breaker based on the information on the arrangement of the breakers and the vibration direction generated when the breaker switches. In addition, the controller 145 may generate information on the switch operation corresponding to the vibration direction of the vibration sensing sensor included in the other distribution panel based on the distribution direction of the switchboard panel 10 and the arrangement direction of the other switchboard panel. have.

According to an embodiment, the gateway 14 may further include a noise detection sensor 144. For example, the noise sensor 144 may be implemented as a microphone, but is not necessarily so.

The noise sensor 144 may generate noise detection data by detecting noise generated when a switch operation of the breakers 11 is performed. The controller 145 may check whether the switch is normally operated by using the vibration detection data and the noise detection data.

On the other hand, the controller 145 may distinguish the on / off of the switch based on the size or length of the noise included in the noise detection data. For example, the magnitude (first magnitude) of noise generated when switching off may be greater than the magnitude (second magnitude) of noise generated when switching on. In addition, the length (first length) of noise generated when switching off may be longer than the length (second length) of noise generated when switching on.

In addition, the controller 145 may distinguish the on / off of the switch by combining the vibration sensing data and the noise sensing data.

For example, the controller 145 may determine that the switch is turned on when the vibration of the X-axis direction and the noise of the second magnitude are sensed. The controller 145 may determine that the switch is turned off when the vibration of the Z-axis direction and the noise of the first magnitude are sensed.

The controller 145 may accumulate and store the vibration detection data and the noise detection data (for example, in the form of a table), and may distinguish the on / off of the switch by using the accumulated stored data.

In the following description, the control device performs a test of the circuit breakers using only the vibration detection data of the vibration detection sensor 143. However, according to an exemplary embodiment, the control device is obtained by the vibration detection data and the noise detection sensor 144. The test may be performed using noise detection data.

Referring to FIG. 3, the control device (gateway 14, data logger 20, or server 30) may receive a breaker test request from an administrator or a user (S100).

For example, the server 30 (or the control device) may receive a test request for the breakers 11 included in the switchboard panel 10 from an administrator or a user. The test request may be received through an input device connected to the server 30 or may be received from a terminal of an administrator or a user.

Meanwhile, the circuit breaker test of FIG. 3 may correspond to a test performed for the first time after installation of the switchboard panel 10, but is not necessarily the case.

In response to the received circuit breaker test request, the control device may control a switch operation of the Nth circuit breaker (N sequentially increases from 1) among the M circuit breakers included in the switchboard panel (S110).

When the control device tests the switches of the plurality of breakers 11 at the same time, it may be difficult to determine which breaker switch the particular switch corresponds to when the particular switch is not operated.

Therefore, the control device can sequentially test the plurality of circuit breakers 11 one by one. For example, the control device may transmit a control signal for controlling the switch operation of the N-th breaker to the N-th breaker.

The control device may check whether the switch of the N-th breaker is normally operated based on the vibration detection data obtained from the vibration detection sensor 143 (S120).

The control device may transmit a control signal to the N-th breaker, and obtain vibration detection data for a predetermined time from the vibration detection sensor 143.

When the switch of the N-th circuit breaker operates normally, vibration generated according to the operation of the switch may be detected by the vibration detecting sensor 143. On the other hand, when the switch of the N-th breaker is inoperative, the vibration sensor 143 may not detect the vibration. That is, when vibration detection data includes vibration according to the operation of the switch, the control device may confirm that the switch of the N-th breaker is normally operated.

As a result of the check, when the switch is inoperative (NO in S130), the control device may notify an error of the N-th breaker (S140).

For example, when the N-th breaker does not receive the control signal transmitted by the control device (communication error) or when there is a physical problem in the switch of the N-th breaker, the switch of the N-th breaker may be inoperative.

If it is confirmed that the switch breaker of the N-th breaker is confirmed, the control device may stop the test and notify the administrator or the user of the error of the N-th breaker. The control device may transmit the error notification of the N-th circuit breaker to the terminal 60 of the administrator or the user, or output it through the HMI 40. The administrator or the user may check the N-th breaker based on the error notification.

As a result of the check, if the switch operates normally (YES in S130), the control device checks whether the tests for all the breakers 11 have been performed (S150), and if not performed, the test for the other breakers can be performed sequentially. There is (S160).

If the testing of all the breakers 11 is not completed, the control device may transmit a control signal for operating the switch of the next breaker to the next breaker.

According to an embodiment of the present disclosure, when the switch is normally operated, the control device may store the obtained vibration detection data as the vibration detection data for the N-th breaker or the like. The stored vibration sensing data can be utilized in testing a plurality of breakers 11 performed after the initial test. This will be described later with reference to FIG. 8.

As a result of the check, when all the breakers 11 have been tested, the control device may inform that the breaker test result is normal (S170).

The control device may transmit a message or information indicating that the circuit breaker test result is normal to the terminal 60 or output it through an output device such as the HMI 40.

Hereinafter, an example related to the operation of the breaker management system in the switchboard shown in FIG. 3 will be described with reference to FIGS. 4 to 7.

4 is an exemplary view illustrating an operation of a gateway transmitting a control signal for operating a switch of a specific circuit breaker, and FIG. 5 is a vibration sensor when the switch of the specific circuit breaker receiving the control signal of FIG. 4 operates normally. It is a figure which shows the example of the waveform detected by the.

Referring to FIG. 4, the controller 145 of the gateway 14 may test a plurality of breakers CB1 to CB11 in response to a breaker test request received from an administrator or a user.

The gateway 14 may check the switch operation based on the vibration detection data obtained from the vibration detection sensor 143 while sequentially operating the switches of the plurality of breakers CB1 to CB11.

For example, the gateway 14 may transmit a control signal CTRL for operating (eg, turning off) the switch of the ninth breaker CB9 after the test of the first breaker CB1 to the eighth breaker CB8. To breaker CB9.

Referring to FIG. 5, the ninth circuit breaker CB9 may switch off based on the received control signal CTRL. As the switch is turned off at the first time point T1, vibration of a predetermined magnitude may occur. The vibration gradually weakens with time, and after a predetermined time, the vibration may no longer occur. As such, when the switch of the ninth circuit breaker CB9 operates normally, the vibration detection data acquired by the vibration detection sensor 143 may include a waveform W1 of the form shown in FIG. 5.

Referring to FIG. 6, when the ninth breaker CB9 does not normally receive the control signal CTRL from the gateway 14 or an error occurs in the switch, the ninth breaker CB9 may not turn off the switch. have.

As the switch of the ninth circuit breaker CB9 is inoperative, vibration may not occur at the first time point T1. In this case, as illustrated in FIG. 6, the waveform W2 included in the vibration sensing data acquired by the vibration sensing sensor 143 has an amplitude at the first time point T1 unlike the waveform W1 of FIG. 5. A change, i.e., a change in amplitude due to the operation of the switch, may not be included.

That is, when the amplitude change of the waveform W2 is less than or equal to the predetermined value from the first time point T1 or the first time point T1 from the first time point T1 or the first time point T1, the controller 145 of the gateway 14 may block the ninth circuit breaker CB9. It can be confirmed that the switch is not operated.

Referring to FIG. 7, when the controller 145 of the gateway 14 determines that the switch of the ninth breaker CB9 is inoperative, as in the embodiment of FIG. 6, the ninth breaker through the HMI 40. The screen 700 indicating an error of the CB9, that is, the switch non-operation of the ninth switch CB9 may be displayed.

For example, the screen 700 may include a message for inducing an administrator or a user to check and check the ninth breaker CB9 as the switch non-operation of the ninth breaker CB9 is confirmed. An administrator or a user may easily confirm that the switch of the ninth breaker CB9 is not operated based on the screen 700, and may take action accordingly.

Referring to FIG. 8, the control device of the breaker management system may receive a breaker test request from an administrator or a user (S200).

The breaker test to be described with reference to FIG. 8 may correspond to the breaker test after the initial test according to the embodiment shown in FIG. 3 is performed.

For example, the control device may receive a test request for the breakers 11 included in the switchboard panel 10 from an administrator or a user. The test request may be received through an input device (not shown) connected to the control device, or may be received from the terminal 60.

The control device may control a switch operation of each of the plurality of breakers 11 included in the switchboard panel 10 in response to the received breaker test request (S210).

Unlike step S110 of FIG. 3, the control device may control to operate the switches of the plurality of breakers 11 at the same time.

For example, the control device may transmit a control signal for controlling a switch operation of each of the plurality of breakers 11 to each of the plurality of breakers 11.

According to an embodiment, the control device may control to simultaneously operate switches of at least two breakers of the plurality of breakers 11.

The control device is based on the vibration sensing data obtained from the vibration sensing sensor 143 and the vibration sensing data for each of the breakers 11 obtained in the initial test or the previous test and stored in the memory 142. It can be checked whether the normal operation (S220).

The control device may transmit a control signal to the plurality of circuit breakers 11 and obtain vibration detection data for a predetermined time from the vibration detection sensor 143. The obtained vibration sensing data may include vibration (waveform) generated as the plurality of switches operate.

The control device may determine whether the switches of the breakers 11 operate normally by using the obtained vibration detection data and the vibration detection data of each of the breakers 11 previously stored in the memory 142.

For example, the characteristics (eg, frequency characteristics) of vibrations generated during operation of each of the switches of the breakers 11 may be different. That is, the vibration detection data obtained from the vibration detection sensor 143 may include vibrations (waveforms) according to various frequency characteristics. Accordingly, the control device may analyze the frequency characteristics included in the obtained vibration sensing data and compare the vibration sensing data with respect to each of the circuit breakers 11 previously stored in the memory 142 to determine whether the switches are normally operated.

However, the control device does not check whether the switches operate normally using only the frequency characteristics of the vibrations included in the vibration sensing data. That is, the control device can compare the vibration detection data in various ways to check whether the switches are in normal operation.

As a result of the check, when an inactive switch among the switches is detected (YES in S230), the control device may notify an error occurrence of the breaker corresponding to the switch that is detected as inoperable (S240).

As a result of the checking according to step S220, the control device may detect at least one switch not in operation among the plurality of switches. For example, the control device detects that the switch of the specific circuit breaker is inoperative when the frequency characteristics of the vibration included in the vibration sensing data obtained from the vibration sensor 143 do not include the frequency characteristic of the specific circuit breaker. can do.

In this case, the control device may stop the test and notify the administrator or the user of the error of the breaker corresponding to the switch detected as inoperative. Examples related to the error notification of the control device have been described above in step S140 of FIG. 3.

On the other hand, when all of the switches operate normally (NO in S230), the control device may inform that the breaker test has been completed normally (S250).

That is, the control device may simultaneously perform the test of each of the breakers 11 by using the vibration sensing data stored for each of the breakers 11. Accordingly, the time required for testing the breakers 11 can be effectively saved.

According to an embodiment of the present invention, the breaker management system in the switchboard automatically tests whether the breaker switches normal operation using the vibration sensor and the noise sensor, and provides the test result to the administrator or the user, so that the administrator or the user Eliminate the hassle of manually testing the switch for proper operation.

In addition, the breaker management system in the switchboard stores the vibration detection data for each of the switches during the initial test, and then performs the tests by simultaneously operating the switches using the stored vibration detection data in the test, thereby effectively reducing the time required for the test. You can save.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims

A vibration sensor provided in the switchboard panel; And

And a control device configured to perform a first test to determine whether each of the breakers is operated based on a first test request of the breakers included in the switchboard panel and vibration detection data of the vibration sensor.

The control device

Receive a first test request of the breakers included in the switchboard panel,

In response to the received first test request, controlling the switches of each of the breakers to be sequentially operated,

Each time the switch operation of each of the breakers, by using the vibration detection sensor to obtain vibration detection data,

A circuit breaker management system in a switchboard for performing the first test based on the obtained vibration sensing data.
The method of claim 1,

The control device,

If it is detected that a specific switch is not operating,

Breaking management system in a switchboard for stopping the first test, and outputs an error notification of the breaker having the specific switch.
The method of claim 1,

The control device,

And confirming that the switch of each of the breakers is in normal operation, and outputting a test normal notification indicating that the test result is normal.
The method according to claim 2 or 3,

The control device,

The circuit breaker management system of the switchboard for transmitting the error notification or the test normal notification to the terminal connected to the control device.
The method of claim 1,

The control device,

A gateway included in the switchboard panel and connected to each of the breakers;

The gateway, the breaker management system in the switchboard for transmitting a control signal for operating the switch of each of the breakers sequentially to each of the breakers.
The method of claim 5,

The vibration sensor is included in the gateway,

The gateway is a breaker management system in the switchboard to check whether the operation of each of the breakers on the basis of the obtained vibration detection data.
The method of claim 6,

The control device,

The breaker management system in the switchboard for classifying the on / off of the switch according to the vibration direction included in the vibration detection data.
The method of claim 7, wherein

The control device,

And a circuit breaker management system for distinguishing on / off of a switch of each of the breakers based on an arrangement direction of each of the breakers and a vibration direction included in the vibration sensing data.
The method of claim 7, wherein

The gateway further includes a noise sensor for acquiring noise detection data during operation of each switch of the breakers,

The control device,

The breaker management system of the switchboard for checking the operation of the switch of each of the breakers based on the vibration detection data and the noise detection data.
The method of claim 9,

The control device,

And a circuit breaker management system for classifying a switch on / off based on a vibration direction included in the vibration detection data and a magnitude or length of noise included in the noise detection data.
The method of claim 5,

The control device,

Further comprising a data logger connected to the gateway,

The data logger,

Receiving the vibration sensing data from the gateway,

The breaker management system of the switchboard for checking the operation of each of the breakers based on the received vibration detection data.
The method of claim 5,

The control device,

A data logger connected to the gateway; And

Further comprising a server connected to the data logger,

The server,

Receive the vibration sensing data from the gateway via the data logger,

The breaker management system of the switchboard for checking the operation of each of the breakers based on the received vibration detection data.
The method of claim 1,

The control device,

And a memory configured to store vibration detection data obtained when the switches of the breakers are operated.
The method of claim 13,

The control device,

Receive a second test request at a predetermined time after the first test is completed,

In response to the received second test request, control to operate the switches of at least two of the breakers;

In operation of the switches of the at least two breakers, obtain vibration detection data using the vibration detection sensor,

And determining whether the switches of each of the at least two breakers are operated based on the obtained vibration sensing data and the vibration data of each of the at least two breakers stored in the memory.