KR101170711B1 - Deterioration sensing cabinet panel distribution board - Google Patents

Abstract

PURPOSE: A distribution board for sensing the deterioration of a live line is provided to simplify an internal structure by sensing a temperature of the live line with a noncontact sensing unit. CONSTITUTION: A deterioration sensing unit(200) senses the deterioration of a live unit(300) by measuring the temperature of a case and senses the temperature change of a connection unit(330) of a circuit breaker(310), a bus bar(320) and a connection unit(323) of the bus bar. The live unit distributes power supplied through a lead-in line to an indoor line. The live line is fixed on a base(120) of the case and includes a main circuit breaker(311), a first bus bar(321), a second bus bar(322), and a sub circuit breaker(312).

Description

Deterioration sensing cabinet panel distribution board

The present invention relates to a deterioration detection distribution panel capable of detecting the deterioration of an internal live part, and in particular, by detecting the temperature of the live part configured in the distribution panel by using a non-contact sensing means, to easily detect the deterioration of the live part while simplifying the internal configuration. It is about a deterioration detection distribution board.

The power supplied through the power system is finally supplied to each customer through the distribution panel. The distribution panel includes a case, a plurality of busbars or cables (hereinafter, collectively described as busbars) for distributing electric power through a plurality of breakers and breakers housed inside the case.

1 is an exemplary view showing an example of a general distribution board.

Referring to FIG. 1, the distribution panel includes a case 10, a base plate 29, a parking breaker 21, an auxiliary breaker 23, first and second bus bars 12 and 13, and a bus bar holder 14. It includes.

The parking terminal 21 has an input terminal 22a connected to the lead line 11 and an output terminal 23a connected to the first bus bar 12. In the auxiliary circuit breaker 22, the input terminal 22a is connected to the first busbar 12 by the second busbar 13, and the output terminal 23b is connected to the indoor wiring. In addition, the end of the first busbar 12 is fixed by the busbar fixing rack 14.

Such distribution boards have a periodic check to determine most of the abnormalities in advance, but damage and deterioration may occur due to abnormalities that are not confirmed by related lines, which may cause short circuits, disconnections, and fires.

More specifically, the accumulation of foreign matter inside the breakers 21 and 22, the busbars 12 and 13, and the case, the breaker aging, the aging of the busbars, the connection between the busbars or the connection between the busbars and the breakers are incorrect. The connection, the increase in load, and the resulting overheating of the live part, the generation of arcs in the live part or the connection part, are the main causes of damage to the distribution panel and deterioration.

Therefore, conventionally, by checking only the occurrence of the arc by using the arc detector, it is difficult to detect overheating and deterioration in the state where the arc does not occur, resulting in a problem of failure of the distribution panel.

In addition, when sensing the temperature of the live part to detect overheating and deterioration, insulation with the live part is required, and as the number of objects to be measured increases, the configuration inside the distribution board becomes more complicated, resulting in burnout or short circuit. There was a problem.

Accordingly, an object of the present invention is to provide a deterioration detecting distribution panel which makes it possible to easily detect the deterioration of the live part while simplifying the internal configuration by sensing the temperature of the live part configured in the distribution panel using a non-contact sensing means.

In addition, another object of the present invention is to output the deterioration detection results through the output device outside the distribution panel and to transmit the detection results to a remote monitoring system or user terminal as needed, the user can easily check the status of the distribution panel In other words, a deterioration detection panel should be provided to enable immediate response in the event of an emergency.

In order to achieve the above object, the deterioration sensing distribution panel according to the present invention has a plate-shaped base coupled therein; A live part installed on the base and including a plurality of breakers and bus bars; Deterioration detection unit for determining the degradation of the live portion by measuring the temperature inside the live part and the case; And an output unit for outputting a determination result of the degradation detection unit.

The deterioration detecting unit includes a first temperature sensor measuring a temperature inside the case and a second temperature sensor measuring a temperature of the live part.

The degradation detection unit may include: a measurement information calculator configured to calculate first measurement information and second measurement information by using temperature information from the first temperature sensor and the second temperature sensor; A deterioration diagnosis unit which stores reference information including temperature or time information for comparison with the measurement information, and determines deterioration of the live part based on the reference information, the first measurement information, and the second measurement information; And a data storage means for storing a result of the degradation determination by the degradation diagnosis unit, and a result processing unit converting the degradation determination result into a form that can be output by the output unit and providing the result to the output unit.

The deterioration diagnosis unit determines deterioration by at least one of comparison of the reference information with the first measurement information, comparison of the reference information with the second measurement information, and comparison of the first measurement information with the second measurement information. do.

The second temperature sensor is configured in plural, the measurement information calculator calculates a plurality of second measurement information for each of the plurality of second temperature sensors, and the degradation diagnosis unit compares the plurality of second measurement information to each other. To judge the deterioration.

The live part may include a parking short circuit having an input connection part connected to a lead wire to which power is supplied; A first bus bar connected to an output connection of the parking terminal; A plurality of second bus bars, one end of which is connected to the first bus bar; And a plurality of sub-breakers having an input connection part connected to the other end of the second bus bar and an output connection part connected to the receiving side wiring.

The degradation detection unit is an input connection portion of the parking terminal, an output connection portion of the parking terminal, an input connection portion of the sub-breaker, an output connection portion of the sub-breaker, the first booth bar, the second booth bar and the first booth bar and the The temperature of at least one of the connection points of the second busbars is measured.

The first measurement information and the second measurement information is at least one of a temperature gradient, a temperature holding time, a current temperature and a temperature rise information calculated using the temperature information from the first temperature sensor and the second temperature sensor. It includes.

The deterioration detecting distribution panel according to the present invention can easily detect deterioration of the live part while simplifying the internal configuration by detecting the temperature of the live part configured in the distribution panel using the non-contact detection means.

In addition, the deterioration detection distribution panel according to the present invention outputs the degradation detection results through the output device outside the distribution panel, and transmits the detection results to a remote monitoring system or user terminal as needed, the user easily Check and take immediate action in case of emergency.

1 is an exemplary view showing an example of a general distribution panel.
Figure 2 is an exemplary view schematically showing the external form of the distribution panel according to the present invention.
Figure 3 is an exemplary view showing the form inside the distribution panel.
Figure 4 is an exemplary view showing in more detail the configuration of the degradation detection unit.
5 is a flowchart illustrating a degradation detection method by the degradation detection unit.
6 is a flow chart for explaining the degradation diagnostic step of FIG.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the accompanying drawings, it should be noted that the same reference numerals are used in the drawings to designate the same configuration in other drawings as much as possible. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or known configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. And certain features shown in the drawings are enlarged or reduced or simplified for ease of description, the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

Figure 2 is an exemplary view schematically showing the external shape of the distribution panel according to the present invention, Figure 3 is an exemplary view showing the shape of the inside of the distribution panel.

2 and 3, the deterioration detecting distribution panel according to the present invention includes a case 110, a deterioration detecting unit 200, and a live part 300.

The case 110 serves to isolate and protect the outside from the outside by accommodating the live part 300 and the deterioration detecting part 200 therein. In addition, a display unit 241 for displaying the operating state of the live part 300 under the control of the deterioration detecting unit 200 is installed outside the case 110. The case 110 includes a main body 111 and a front case 112 coupled to the main body 111 so as to be openable and closed, and a base 120 fixed to the inside of the main body 111 to install the live part 300. do. In addition, a lead wire opening 115 is formed in the case 110 so that the lead wire can be connected to the live part inside the case 100. In addition, the locking device 118 for locking the front case 112 and the main body 111 may be formed in the case 110, but the present invention is not limited thereto.

The deterioration detecting unit 200 detects deterioration of the live section 300 by measuring temperatures inside the live section 300 and the case 110. In particular, the degradation detection unit 200 may be connected to the connection parts 331a, 332a, 331b, and 332b of the breaker 310, the busbars 320, and the busbars 320, as indicated by a dotted line 221 in FIG. 3. The temperature change of the 323 is detected and the state of the live part 300 is notified to the user through the display unit 241 or the communication unit according to the detection result. Detailed configuration of the degradation detection unit 200 will be described in more detail below.

The live part 300 distributes the power supplied through the incoming line to the receiving side wiring or the indoor wiring (hereinafter referred to as 'indoor wiring'), and serves to relay the incoming wire and the indoor wiring for this purpose. In particular, the live part 300 has a circuit breaker 310 having a capacity corresponding to the indoor wiring to which power is distributed to the connecting part of the live part 300 and the indoor wiring to replace the indoor wiring with the live part 300 in case of an abnormal circuit. It plays a role. For this purpose, the live part 300 is fixedly installed on the base 120 inside the case 110. The live part 300 may include a first bus bar 321, a first bus bar 321, and a second circuit breaker connected to the output terminal 332a of the parking terminal 311 and the parking terminal 311. The second bus bar 322 connecting the 312, the second bus bar 322 and the secondary circuit breaker 312 for relaying and connecting the indoor wiring. Here, the parking breaker 311 or the secondary breaker 312 may be provided in plurality. 3 illustrates an example in which the first bus bar 321 is composed of two bus bars, it may be composed of three or more bus bars, and the present invention is not limited thereto.

4 is an exemplary view showing in more detail the configuration of the degradation detection unit.

Referring to FIG. 4, the degradation detecting unit 200 includes a first sensor 210, a second sensor 220, a diagnostic processor 230, and an output unit 240.

The first sensor 210 measures the temperature inside the distribution panel, that is, inside the case 110, prepares the first temperature information, and writes the created first temperature information to the measurement information calculator 231 of the diagnostic processor 230. To pass. The first sensor 210 is configured using a non-contact temperature measuring element, and is installed spaced apart from the live part 300 inside the case 110. The first sensor 210 may be installed at one or more places where the live part 300 is not installed as shown, but is not limited to the present invention. In addition, the first sensor 210 may be integrally formed with the second sensor 220, and this does not limit the present invention.

The second sensor 220 measures the temperature of the live part 300 to create second temperature information, and transmits the created second temperature information to the diagnostic processor 240. In particular, the second sensor 220 is a specific point of the live part 300, that is, the detection target 221, such as the connection part 330, the bus bar 320, and the connection part 323 of the bus bar 310. The second temperature information is prepared by continuously measuring the temperature. To this end, the second sensor 220 may be composed of one or more sensors according to the object of the live part 300 to be measured. In addition, when the range of the measurement target is outside the measurement range of one of the second sensors 220 such as the bus bar 320, the plurality of second sensors 220 may be configured for the same object to measure the temperature.

The second sensor 220 is preferably configured using a non-contact sensor for measuring the temperature without contacting the contact object. To this end, the second sensor 220 may be configured using an infrared sensor, but this does not limit the present invention, and any sensor may be used as long as the sensor can detect a temperature of the measurement object spaced apart from the measurement object. It's okay. The second sensor 220 prepares the second temperature information including the classification information for distinguishing the measurement object.

The diagnostic processor 230 detects deterioration of the live part 300 using the first and second temperature sensors transmitted from the first sensor 210 and the second sensor 220. Specifically, the diagnostic processor 230 calculates the slope and temperature change information for each temperature information from the first and second temperature information, and compares the calculated information with each other to detect degradation of the live part 300. In particular, the diagnostic processor 230 stores reference information for deterioration diagnosis, and compares the calculated information with the reference information to determine deterioration. In addition, the diagnostic processor 230 outputs whether the live part 300 is deteriorated through the output unit 240, so that the user can recognize it. To this end, the diagnostic processor 230 includes a measurement information calculator 231, a degradation diagnosis unit 233, and a result processor 235.

The measurement information calculation unit 231 calculates first measurement information, which is measurement information on the first temperature information, and second measurement information, which is measurement information on the second temperature information, from the first and second temperature information. The first and second measurement information includes a temperature gradient for each of the first temperature information and the second temperature information, and temperature change information for each of the first and second temperature information. The rate of change of temperature, the specified time period, for example, temperature change information of a day or several hours. The measurement information calculator 231 transfers the calculated information to the degradation diagnosis unit 233.

The degradation diagnosis unit 233 determines the degradation of the live part using the measurement information and the reference information calculated in the measurement information calculation unit 231. The degradation diagnosis unit 233 compares the measurement information with the reference information to determine whether a temperature change of a predetermined level or more has occurred and compares the measurement information with each other to determine the object where the temperature change has occurred and the degree of temperature change to perform the degradation diagnosis. . Specifically, the reference information is the reference temperature, which is the temperature information that should be generally maintained by the live part 300, and the time limit information that can be maintained at the corresponding temperature when the temperature rise occurs, the reference time information and the live part 300 limit of temperature rise. It includes threshold temperature, which is a value, and reference slope information, which is information of a rate of change of temperature rise. The reference information is set and stored in accordance with the live part to be measured temperature. That is, different information may be stored as reference information depending on whether the breaker 310 is connected to the connection unit 330 or the busbar 320. Through this, the degradation diagnosis unit 233 compares the reference information and the calculation information to determine whether the live unit 300 is deteriorated, and transmits the determination result to the result processing unit 235.

The result processing unit 235 converts the determination result and the state information according to the determination result from the degradation diagnosis unit 283 into a form that can be output from the output unit 240, and transmits the result to the output unit 240. It is stored in and maintained in. In this case, the result processor 235 may transmit different output information according to the configuration of the output unit 240. That is, in the case where the output unit 235 simply has the lighting display means, only the output information for controlling the lighting of the lighting display means is transmitted, while communication with a separate device is possible, or the interface has the same display window. It delivers the output information recorded with the data. In addition, the result processing unit 235 includes a storage means that can be built-in or detachable, and stores and maintains the determination result and state information transmitted from the degradation diagnosis unit 283 in the storage means.

The output unit 240 outputs output information transmitted from the result processor 235. For this purpose, the output unit 240 may include a display unit 241 and a communication unit 243. The communication unit 243 forms a communication channel through a wireless LAN, mobile communication, and power line communication with a terminal, a mobile phone, a notebook computer, or a remote computer system possessed by a user, and transmits output information. Separately, the output unit 240 includes a display unit 241. The display unit 241 is installed at a position that the user can easily check, such as the outer surface of the case 110. The display unit 241 may be implemented using a flat panel display device, but may be implemented as a light source as shown in the figure. The display unit 241 configured as a lighting source selectively lights three colors of different colors, for example, red, yellow, and yellow, depending on the state, thereby displaying the state of the distribution panel 100 in accordance with deterioration.

5 is a flowchart illustrating a degradation detection method by the degradation detection unit, and FIG. 6 is a flowchart illustrating the degradation diagnosis step of FIG. 5.

5 and 6, the degradation detection method is a reference information setting storage step (S100), temperature information creation step (S200), measurement information calculation step (S300), degradation diagnosis step (S400) and diagnostic information output step ( S500). In addition, the deterioration diagnosis step (S400) is a comparison step (S410) based on the reference information, the first temperature information and the second temperature information comparison step (S420), the comparison step between the second temperature information (S430) and deterioration determination step (S440) ).

The reference information setting storage step (S100) is a step in which reference information for determining the state of the distribution panel is set and stored in comparison with the first and second temperature information. In the reference information setting storage step (S100), information about the reference temperature, the reference holding time, the threshold temperature, and the reference temperature gradient is stored. In particular, the reference information may be stored different information depending on the detection target, such as a breaker, busbar. Here, the reference temperature is a value for the temperature or temperature range to be measured under steady state. The reference holding time refers to temperature at which an abnormality may occur due to an increase in a temperature of a detection target and threshold time information at which a detection target may maintain a corresponding temperature. In addition, the critical temperature means a temperature rise threshold that can be determined as abnormal. In addition, the reference temperature slope means a limit value of the rate of temperature increase per unit time. The reference information is used as a comparison information with the first and second temperature information in the deterioration diagnosis step (S400), and is used as a basis for determining the deterioration of the distribution panel.

In the temperature information creation step (S200), the first sensor 210 and the second sensor 220 detect the temperature of each detection target of the live part 300 and the inside of the case 110, and the first and second sensors 110 and 120 detect the temperature of the detection object and the inside of the case 110. The temperature information is created and transmitted to the degradation diagnosis unit 233.

The measurement information calculation step (S300) is a step of calculating measurement information using the first and second temperature information transmitted from the first sensor 210 and the second sensor 220. In the measurement information calculation step (S300), the measurement information calculation unit 231 calculates measurement information for comparison with reference information and diagnosis of degradation using the first and second temperature information. To this end, the measurement information calculation unit 231 calculates the temperature slope, the temperature holding time, the present temperature, and the temperature rise information for each of the first and second temperature information. In particular, the measurement information calculation unit 231 measures the respective pieces of the plurality of second temperature information when the second sensors 220 are configured in plural and each second temperature information is transmitted from the second sensors 220. Calculate the information. In addition, the measurement information calculated in the measurement information calculation step S300 is transmitted to the degradation diagnosis unit 233 by the measurement information calculation unit 231.

In the degradation diagnosis step (S400), the degradation diagnosis unit 233 determines the degradation of the live part using the measurement information and the reference information transferred from the measurement information calculation unit 231. To this end, the degradation diagnosis unit 233 compares each item of the reference information and each item of the measurement information, and determines whether or not degradation according to the comparison result. In detail, the degradation diagnosis unit 233 compares the measurement information calculated for each of the first and second temperature information with the preset stored reference information, respectively. In addition, the degradation diagnosis unit 233 compares the measurement information of the first temperature information and the measurement information of the second temperature information to determine whether the degradation. In particular, the degradation diagnosis unit 233 determines the degradation by comparing the measurement information for the plurality of second temperature information when the second sensor 220 is configured in plural. To this end, the deterioration diagnosis step (S400) is a comparison step (S410) based on the reference information, the first temperature information and the second temperature information comparison step (S420), the comparison step (S430) between the second temperature information and deterioration determination step ( S440) is configured to include. Here, the detailed description of the deterioration determination and the detailed steps of the deterioration diagnosis step S400 will be described in more detail after the description of the diagnostic information output step S400.

The diagnostic information output step S500 is a step in which the diagnosis result in the degradation diagnosis step S400 is output and provided to the user. In the diagnostic information output step (S400), the degradation diagnosis unit 233 transmits the diagnosis result to the result processing unit 235, and the result processing unit 235 converts and processes it into a form that can be output from the output unit 240, and outputs the output unit. The data is transmitted to 240 and stored according to a predetermined data format. The output unit 240 outputs the received diagnosis result or transmits the result to a predetermined device. In more detail, in the diagnostic information output step (S500), it is possible to output the diagnostic result by the output unit 240 in various ways. For example, the display device may be configured inside or outside the distribution panel case 110 or may be transmitted to a computer terminal such as a computer or a mobile terminal using wired / wireless communication. In particular, in the case of using the display device, the lighting display using the three-color light source is possible as described above, but the detailed information can be displayed using the small flat panel display device. Alternatively, the diagnostic result may be transmitted using short-range data communication only when an authorized terminal approaches the display panel without configuring a separate display device or transmitting the diagnostic result to a remote location. For this reason, the data content, update cycle, and display method required for each of the above-described output methods are all different.

Therefore, in the diagnostic information output step (S400), the result processing unit 235 processes and modifies the diagnostic information according to the output form and the output method of the output unit 240 and transmits it to the output unit 240. The output unit 240 outputs the diagnostic information provided from the result processing unit 235 to provide to the user. Meanwhile, in the present invention, first, the state of the live part 300 is displayed by the tricolor light source display part 241 provided in the distribution panel case 100. That is, the output unit 240 in the diagnostic information output step (S400) of the display unit 241 'green', 'yellow', 'red' according to the 'normal', 'caution', 'danger / warning' status, respectively Turn on the color. It is also possible to output a beep sound when yellow and red lights are turned on. In addition, in the present invention, the output unit 240 transmits the diagnostic information to the user's mobile terminal, the monitoring system through the wired / wireless communication channel in the diagnostic information output step (S400).

Meanwhile, as described above, the deterioration diagnosis step S400 includes a comparison step S410 based on reference information, a comparison step S420 of first temperature information and second temperature information S420, a comparison step between second temperature information S430, and The deterioration determination step (S440) is included. A comparison step based on the reference information (S410) is a step of comparing each of the measurement information of the first and second temperature information with the reference information. In the comparison step S410 based on the reference information, the degradation diagnosis unit 233 performs comparison based on the reference information.

In the comparison step based on the reference information (S410), the degradation diagnosis unit 233 compares each item of the preset reference information with the measurement information by the first temperature information and the measurement information by the second temperature information. In detail, the degradation diagnosis unit 233 checks the internal temperature of the case by the first temperature information in the comparison step S410 based on the reference information, and confirms the current temperature of the live part by the second temperature information. The degradation diagnosis unit 233 checks whether the case internal temperature and the current temperature of the live part are higher or lower than the reference temperature. Here, the reference temperature may be a fixed value and may be a temperature that changes according to time and season. In addition, the degradation diagnosis unit 233 checks the time the case temperature or the current temperature of the live portion is maintained. In particular, the deterioration diagnosis unit 233 checks the holding time at the corresponding temperature when the case inside temperature or the current temperature of the live part is raised to a certain temperature, for example, a dangerous temperature. In addition, the degradation diagnosis unit 233 checks whether the internal temperature of the case or the current temperature of the live part has risen to a critical temperature, that is, the maximum temperature that the case or live part can withstand. Similarly, the degradation diagnosis unit 233 also determines whether the temperature inside the case or the temperature of the live part is excessively increased in a short time compared to the reference slope of the reference information.

In this checking process, the degradation diagnosis unit 233 judges the state of the distribution panel as a caution state when any item exceeds the standard, and the output unit 240 lights the 'yellow' light source through the display unit 241. To make it visible to the user. In addition, in the above-described comparison, when the criteria of a specific item is exceeded or the criteria of a plurality of items is exceeded, the 'red' light source may be turned on to indicate that the situation is 'danger'.

When there is no abnormality in the comparison step (S410) based on the reference information or regardless of this, the degradation diagnosis unit 233 compares the first temperature information with the second temperature information. In more detail, the first temperature information is information related to the internal temperature of the case, and the second temperature information is temperature information on the live part 300. Therefore, the degradation diagnosis unit 233 compares the two to determine whether the temperature change due to the abnormal occurrence of the live part 300, or the temperature change due to the temperature rise of the peripheral part including the case.

In addition, the degradation diagnosis unit 233 detects the temperature change of the local live section 300 through the comparison between the second temperature information (S430), it is determined whether the degradation accordingly. In the comparison between the second temperature information (S430), the degradation diagnosis unit 233 checks the live section 300 showing different temperature and temperature change patterns in the live section 300, and determines whether there is any deterioration therethrough. For example, the degradation diagnosis unit 233 may check the degradation diagnosis unit 233 having a relatively large temperature gradient in the plurality of second temperature information, or may display a live part having a higher or lower temperature than other live parts 300. Determination of the deterioration may be performed by checking 300 and comparing it with reference information or by determining a predetermined procedure.

In the deterioration determination step (S440), the deterioration diagnosis unit 9333 detects deterioration of the live part, in particular, deterioration of the specific live part according to the comparison of the respective steps S410, S420, and S430, and prepares the diagnosis information according to the result processing unit 235. ).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, . ≪ / RTI > Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

10, 110: case 11: lead wire
12: first booth bar 13: second booth bar
14: busbar fixing stand 15: busbar
21: parking short 22a, 22b: input terminal
23: even short circuit 23a, 23b: output terminal
111: main body 112: front
115: lead-in port 118: locking device
120: base 200: deterioration detection unit
210: first temperature sensor 220: second temperature sensor
221: detection target 230: diagnostic processing unit
231: measurement information calculation unit 233: deterioration diagnostic unit
235: result processing unit 240; Output
241: display unit 243: communication unit
300: live part 311: parking short-term
310: breaker 320: busbar
321: first booth 322: second booth
323: connection 330: connection

Claims (8)

A case having a plate-shaped base coupled therein; A live part installed on the base and including a plurality of breakers and bus bars; Deterioration detection unit for determining the degradation of the live portion by measuring the temperature inside the live part and the case; And an output unit for outputting a determination result of the degradation detection unit.
The degradation detection unit
A first temperature sensor measuring a temperature inside the case; A second temperature sensor composed of a plurality for measuring the temperature of the live part; A measurement information calculator configured to calculate first measurement information and a plurality of second measurement information using temperature information from the first temperature sensor and the second temperature sensor; Reference information including temperature or time information for comparison with the first measurement information or the second measurement information is stored, and the plurality of second measurement information are compared with each other, and the reference information and the first measurement information A deterioration diagnosis unit configured to further determine at least one of comparison, comparison of the reference information with the second measurement information, and comparison of the first measurement information with the second measurement information to determine deterioration of the live part; And a data storage means for storing a result of the determination of degradation by the degradation diagnosis unit, and a result processing unit converting the degradation determination result into a form that can be output by the output unit and providing the result to the output unit.
The first measurement information and the second measurement information is at least one of a temperature gradient, a temperature holding time, a current temperature and a temperature rise information calculated using the temperature information from the first temperature sensor and the second temperature sensor. Including;
The live part may include a parking short circuit having an input connection part connected to a lead wire to which power is supplied; A first bus bar connected to an output connection of the parking terminal; A plurality of second bus bars, one end of which is connected to the first bus bar; And a plurality of secondary circuit breakers having an input connection portion connected to the other end of the second bus bar and an output connection portion connected to a receiving side wiring. delete delete delete delete delete The method of claim 1,
The degradation detection unit
An input connection portion of the parking terminal, an output connection portion of the parking circuit breaker, an input connection portion of the sub-breaker, an output connection portion of the sub-breaker, the first booth bar, the second booth bar, the first booth bar and the second booth bar Degradation sensing distribution panel, characterized in that for measuring the temperature of at least one of the connection points of.
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