KR101686039B1 - Pannel board with blackbox function and abnormality detecting - Google Patents

Abstract

The present invention provides a mobile communication system including a short range wireless communication unit for performing short range wireless communication with a neighboring mobile unit, a second mobile unit for transmitting the short distance wireless communication signal to the first mobile unit, A device control unit for activating or deactivating an activity control object in the communication device by using a short range wireless communication unit in response to receiving a use request of the communication device or receiving a use suspension request, Providing a mileage to the first mobile when grasping the entry of the first mobile into the storage area in cooperation with a grasping unit and providing mileage proportional to the use time of the communication device corresponding to use of the communication device Miley is deducted from the first mobile's accumulated mileage And a time counter for counting the usage time of the communication device.

Description

[0001] PANEL BOARD WITH BLACKBOX FUNCTION AND ABNORMALITY DETECTING [0002]

The present invention relates to a high-voltage switchboard, a low-voltage switchboard, a distribution board, and an MCC (motor control center). The present invention utilizes a malfunction-proof circuit breaker having a function of preventing a malfunction caused by a surge, (High-voltage switchgear, low-voltage switchgear, sub-panel, high-voltage switchgear, etc.) equipped with a bulky box that has the capability of analyzing the amount of current, leakage current, MCC ").

Every year, big and small fire events occur. Whenever such a fire event occurs, it is necessary to clarify the cause and identify the cause of the fire to prevent the recurrence.

If the cause of a direct fire is not identified every time a fire occurs, it is assumed to be an electrical defect, that is, an electrical fault caused by a short circuit or an overcurrent, and the exact cause of the fire is identified.

However, even if the cause of the fire is precisely detected and the information is gathered at the fire site and the evidence is searched, it is difficult to discriminate the cause of the direct fire because the evidence disappears due to the fire.

Therefore, it is required to provide a distribution board that is provided in the distribution panel to identify the state of the power source supplied to each device and the state of the power line, so that leakage or overcurrent is left as information, thereby making it easy to identify the cause of the fire directly.

Korean Registered Patent No. 10-1106724 (Applicant: Power Bus Co., Ltd., Registered on January 10, 2012)

Disclosure of Invention Technical Problem [8] The present invention provides a distribution board having a black box for identifying a cause of a direct fire in the event of a fire. Another object of the present invention is to provide a distribution box equipped with a black box for detecting a power supply abnormal situation in each electric apparatus connected to a distribution board so as to be utilized for preventing fire and accidents.

According to an aspect of the present invention, there is provided a distribution board having a black box. This distribution board is installed on the RSTN 3-phase entry side of the distribution board and automatically cuts off the current in the event of an overload or disconnection, etc., through the RSTN bus bar at the parking end, A plurality of auxiliary breakers for detecting a current amount, a leakage current amount, and a generation of a power failure, and the plurality of auxiliary breakers are connected to respective input ports, and the amount of leakage current, the amount of current used, And stores the received information.

The monitoring device includes an information receiving unit for receiving output information of an auxiliary circuit breaker received from each input port, an information receiving unit for classifying information received from the information receiving unit according to types of information for each of the auxiliary circuit breakers, And a storage unit for storing various information collected in the information management unit by the date and time for each auxiliary breaker.

Wherein each of the plurality of auxiliary circuit breakers includes a first video current transformer installed to detect a video current from a power line connected to a load side, a second video current transformer installed to detect one of currents connected to the load, An electric leakage detection unit for detecting a leakage current amount when the image current is sensed from the first image current transformer and comparing the leakage current amount with a set reference level that is a criterion for determining a leakage current to determine whether a leakage current has occurred; A power supply unit for supplying operating power to each of the components constituting the auxiliary circuit breaker and informing the microcomputer of the occurrence of a power failure when power is not supplied to the power line; Receives the used current amount from the used current analysis unit, A microcomputer for receiving the leakage current amount and leakage occurrence occurrence from the leakage detection unit, providing the received information to the monitoring device, performing a control operation corresponding to occurrence of a leakage current at the occurrence of leakage current occurrence, And a trip driver for shutting off the power supply to the load in accordance with the operation.

Alternatively, each of the plurality of auxiliary circuit breakers may include a first video current transformer installed to detect a video current from a power line connected to the load, a second video current transformer installed to detect one of the power lines connected to the load, A surge input analyzing unit for detecting a surge current drawn from a power supply line connected to the load side and informing occurrence of a surge current at the time of sensing, a control unit for monitoring the amount of leakage current at the time of sensing a video current from the first video current transformer, A current detection unit for measuring a current detected by the second video current transformer and determining a current amount to be used; a current detector for detecting a current flowing through each of the components constituting the auxiliary circuit breaker; When a power failure occurs in which power is not supplied to the power line, A surge current generation unit for receiving surge current generation from the surge input generation unit and receiving a use current amount from the use current analysis unit, receiving a generation of a power failure from the power supply unit, And a microcomputer for receiving the received electrical information and providing the received information to the monitoring device, performing a control operation corresponding to the occurrence of a short circuit at the time of occurrence of electrical leakage, and shutting off the power supply to the load according to a control operation of the microcomputer And a trip driver.

The monitoring apparatus may further include a surge input analysis unit for sensing a surge current drawn from a power supply line connected to the load side and informing the information management unit of a surge current generation upon sensing.

The monitoring device may further include a count unit for counting the number of surge current detections and counting the number of times of occurrence of a surge when a surge current detection or a power failure occurrence signal is received from the information management unit, A use current monitoring unit for comparing the used current amount with the first threshold value and recording the used current amount in the storage unit when the used current amount is equal to or greater than the first threshold value and causing a warning operation to occur; A leakage current monitoring unit which compares the leakage current amount with the second threshold value to record the leakage current amount in the storage unit and causes a warning operation to occur, When an alarm is received, an alarm And the like.

Also, the monitoring device is connected to the RSTN bus bar via the RSTN bus bar. The monitoring device measures the voltage supplied through the R, S, and T busbars based on the N busbar to determine whether the R, S, And a measurement unit.

The parking terminal further includes a wiring measuring unit for measuring a voltage provided through the R, S, and T busbars to determine whether or not the R, S, T power lines are connected to each other. to provide.

Wherein the electrical leak detecting portion comprises: a first differential amplifier for detecting a half-wave signal of an analog signal detected from the first video current transformer; a second differential amplifier for detecting a half wavelength of the opposite side of the first differential amplifier; An adder corresponding to a kind of a full wave rectification circuit by combining a half wave signal of the second differential amplifier and a half wave signal of a second differential amplifier to generate a radio wave, a signal magnitude applied from the adder is compared with a predetermined reference signal magnitude, A comparator for transmitting an interrupt signal to the microcomputer, and an AC / DC RMS circuit for calculating a current leakage current with a signal detected from the first video current transformer.

The surge input analysis unit includes a voltage limiting unit configured to detect a power supply line branched from a power supply line and to cause a current to flow when an allowable voltage is exceeded due to a surge input, a current limiting unit configured to limit or limit a current flow when a surge occurs, A current detector configured to detect a current flowing from the power line branched from the power line, and a signal detector configured to transmit a detection signal to the microcomputer when it is determined that a surge current has been received when the flow of current is detected from the current converter.

According to the embodiment of the present invention, it is possible to immediately grasp the cause of the direct fire in the fire through the black box in the distribution panel storing the state of the power source provided to the distribution panel and the power state of each electric device. In addition, by monitoring the power state of each electric apparatus, it is possible to detect a power abnormality state such as an occurrence of an overcurrent and an excessive leakage current, and to alarm and prevent a fire or an accident.

1 is a block diagram of a distribution board having an anomaly detection function and a black box function according to an embodiment of the present invention.
FIG. 2 is a diagram showing a connection relationship between monitoring devices and monitoring devices according to the first embodiment of the present invention.
3 is a block diagram of the auxiliary circuit breaker according to the first embodiment of the present invention.
4 is a diagram showing a connection relationship between monitoring devices and monitoring devices according to a second embodiment of the present invention.
5 is a block diagram of an auxiliary circuit breaker according to a second embodiment of the present invention.
6 is an internal configuration diagram of a used current analysis unit according to an embodiment of the present invention.
7 is an internal configuration diagram of a surge penetration analyzer according to an embodiment of the present invention.
FIG. 8 is a diagram showing the connection relationship between the monitoring apparatus and each configuration according to the third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a panel board having a malfunction detection and black box function according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a distribution board having an anomaly detection function and a black box function according to an embodiment of the present invention. As shown in FIG. 1, a distribution board according to an embodiment of the present invention includes a parking terminal 100, a plurality of auxiliary circuit breakers 200, and a monitoring device 300.

The parking terminal unit 100 is installed on the RSTN three-phase drawing end side in the distribution board and performs a function of automatically cutting off the current in the abnormal state such as overload and disconnection. For example, parking terminal 100 is a conventional Molded Cased Circuit Breaker (MCCB).

The plurality of auxiliary circuit breakers 200 are connected to four or two of the four bus bars R, S, T, and N connected to the parking terminal 100 by power lines to provide three-phase or single-phase power And supplies the supplied three-phase or single-phase power to the connected electric devices (eg electric lamp, air conditioner, outlet). The auxiliary circuit breaker 200 detects a surge current drawn from a power supply line or determines whether or not there is a short circuit by detecting a power supply (including wiring) and determining a used current and a leakage current. The auxiliary circuit breaker 200 operating in this manner provides the monitoring device 300 with information on the occurrence of a power failure, a surge current detection, a used current amount, a leakage current amount, a leakage current occurrence, and a power failure occurrence.

The monitoring device 300 classifies various kinds of information received from the plurality of auxiliary circuit breakers 200 according to information types and stores and manages the information according to the reception time. In addition, the monitoring device 300 determines whether the amount of current used by the auxiliary circuit breaker 200 and the amount of leakage current exceed the set threshold value, and performs an alarm function to perform a warning sound or warning display operation when the set threshold value is exceeded, Or a warning message to a specific person or a fire department. In addition, the monitoring device 300 may be configured to have a function of measuring the occurrence of surge current or determining whether or not the connection is established.

1, the monitoring device 300 is connected to the parking terminal 100 through the R, S, T, and N busbars. However, when the monitoring device 300 is not connected to the R, S, T, ≪ / RTI >

Hereinafter, a monitoring apparatus according to a first embodiment of the present invention will be described in detail with reference to FIG. FIG. 2 is a diagram showing a connection relationship between monitoring devices and monitoring devices according to the first embodiment of the present invention.

As shown in FIG. 2, the monitoring device 300 has a plurality of input ports, and is configured to connect one auxiliary breaker 200 to one input port. At this time, the type of the auxiliary breaker 200 connected to the input port number, that is, the type of the electric device connected to the auxiliary breaker 200, is stored and managed as device information for each input port. That is, the monitoring device 300 knows which auxiliary breaker 200 is connected to a certain number of input ports. 2, an auxiliary circuit breaker 200 connected to a lamp is connected to an input port PORT1 and an auxiliary circuit breaker 200 connected to an air conditioner is connected to an input port PORT2 And it is known that an auxiliary breaker 200 connected to an outlet is connected to the input port PORT3 and an auxiliary breaker 200 connected to the refrigerator is connected to the input port n PORTN.

The monitoring apparatus 300 includes an information receiving unit 310, an information managing unit 320, a wiring measuring unit 330, a storing unit 340, a counting unit 360, a used current monitoring unit 370, 380 and an alarm unit 390. In some cases, the monitoring apparatus 300 may further include a display unit 350. Here, one of the counting unit 360, the used current monitoring unit 370, and the leakage current monitoring unit 380 can be omitted by the manufacturer.

The information receiving unit 310 receives the output information of the respective auxiliary breakers 200 received from the input ports PORT1 to PORTN and outputs the output of the auxiliary circuit breaker 200 received through each input port to the information managing unit 320. [ . The information provided from the information receiving unit 310 to the information managing unit 320 includes the input port number (or the identification information of the auxiliary breaker or the identification information of the electric device) and the identification information indicating the type of the information.

The information management unit 320 classifies the information received from the information receiving unit 310 according to the type of the information by the input port number, and associates the classified information with the input port number and stores it together with the current date and time information in the storage unit 340. [ . The information management unit 320 provides the display unit 350 with power status information (amount of used current, amount of leakage current, leakage current, etc.) for each auxiliary circuit breaker 200 when the display unit 350 is provided in the monitoring device 300 To be displayed on the screen.

The wire connection measuring unit 330 is connected to the R, S, T, and N busbars connected to the parking terminal 100 and measures the voltage applied through the R, S, and T busbars based on the N busbars, T power supply line, and if there is a connected power supply line, information on the connected power supply line is stored in the storage unit 340 through the information management unit 320. [ Here, the wiring measuring unit 330 may be omitted in some cases.

The storage unit 340 stores various kinds of information collected by the information management unit 320 for each auxiliary breaker by date and time and stores the stored information as information that can identify the cause of a direct event such as an emergency or a fire do.

The counting unit 360 counts a surge current detection or a power failure occurrence signal from the information management unit 320. [ That is, each time the surge current detection signal is received from the auxiliary circuit breaker 200, the count unit 360 increases the count of the surge current detection event of the corresponding auxiliary circuit breaker 200 to measure the number of times the surge current is detected , Count). Further, the counting unit 360 increases the count of the power failure detection event of the corresponding auxiliary circuit breaker 200 every time the power failure occurrence signal is received from the auxiliary circuit breaker 200, and measures (i.e., counts) the number of times the power failure occurred. The result counted by the counting unit 360 is stored in the storage unit 340. [

The used current monitoring unit 370 is used to determine whether the amount of current used by the electric devices connected to the respective auxiliary circuit breakers 200 is greater than the set threshold value to detect a dangerous situation. To this end, the used current monitoring unit 370 receives the used current amount of each auxiliary circuit breaker 200 from the information managing unit 320, compares the received used current amount with the set first threshold value, and when the used current amount exceeds the first threshold value Know if it is. The used current monitoring unit 370 informs the alarm unit 390 that the amount of used current is greater than the first threshold value.

The leakage current monitoring unit 380 monitors whether the leakage current of the electric device connected to each of the auxiliary circuit breakers 200 is higher than the set threshold value and is in a dangerous state. To this end, the leakage current monitoring unit 380 receives the leakage current amount of each auxiliary circuit breaker 200 from the information management unit 320, compares the received leakage current amount with the set second threshold value, and when the leakage current amount exceeds the second threshold value Know if it is. The leakage current monitoring unit 380 notifies the alarm unit 390 of the excess of the leakage current amount when the leakage current amount is equal to or larger than the second threshold value.

When the alarm unit 390 receives a signal indicating that the threshold value is exceeded from the use current monitoring unit 370 and the leakage current monitoring unit 380, the alarm unit 390 performs an alarm operation such as a warning sound or a warning light to inform the manager or the surrounding people of the danger. The alarm unit 390 has a function of transmitting a warning message to a manager of a remote location, a specific person or a fire department when the monitoring unit 300 has a communication unit enabling wired or communication.

If the use current monitoring unit 370 and the leakage current monitoring unit 380 judge that there is a danger, the alarm unit 390 is driven and the dangerous situation is recorded in the storage unit 340 together with the current time information .

The use current monitoring unit 370 and the leakage current monitoring unit 380 measure the duration of the dangerous situation and determine how long the used current amount or the leakage current amount has continued to exceed the threshold value, As a record.

Hereinafter, the auxiliary circuit breaker 200 according to the first embodiment of the present invention will be described in more detail. 3 is a block diagram of the auxiliary circuit breaker according to the first embodiment of the present invention.

3, the auxiliary circuit breaker 200 according to the first embodiment of the present invention includes a first video current transformer 211 and a second video current transformer 212, an electric leakage detection unit 220, 230, a surge input analysis unit 240, a microcomputer 250, a trip driving unit 260, and a power supply unit 270.

The first video current transformer 211 is provided for detecting the video current from the power source lines L1 and L2 connected to the load side and the second video current transformer 212 is provided for detecting the video current from one of the power source lines L1 and L2 connected to the load side It is installed to detect the used current.

The electrical leak detecting unit 220 quantifies the image current supplied from the first video current transformer 211 and informs the microcomputer 220 of the amount of leakage current. The microcomputer 220 informs the microcomputer 220 of the occurrence of a short circuit due to the leakage current. At this time, the current provided by the first video current transformer 211 is provided as a fine analog signal. Therefore, the electrical leak detecting section 220 amplifies the analog signal for the detected current, converts the amplified analog signal into a digital signal and quantifies it, and then compares the quantified value with a reference value (i.e., a reference level) It is judged whether a short circuit has occurred or not. When the leakage current flowing in the load side is determined to be equal to or greater than the set reference value, the electrical leak detecting section 220 transmits a power cutoff request signal to the microcomputer 250.

The used current analyzer 230 recognizes the current received from the second video current transformer 212 as the used current. At this time, since the current received from the second video current transformer 212 is an analog signal, the used current analyzer 230 converts the current into a digital signal and notifies the microcomputer 250 of the converted digital signal.

The surge input detection unit 240 detects a surge current exceeding a permissible voltage from the power supply lines L1 and L2 and outputs a surge current detection signal indicating surge current generation, .

When the microcomputer 250 receives various types of information from the respective components 220, 230, 240, and 370, the microcomputer 250 provides the monitoring information to the monitoring device 300. The microcomputer 250 determines whether or not the occurrence of the electrical leak sensed by the electrical leak detecting portion 220 is due to surge current, noise, It is determined that a short circuit has occurred and the trip driver 260 is controlled.

The trip driving unit 260 operates by a control signal transmitted from the microcomputer 250 by cutting off the power supply applied to the load in the event of a short circuit. That is, the microcomputer 250 performs a switching operation to open or close the electric circuit according to a control signal transmitted from the microcomputer 250. The switching unit applied to the trip driver 260 may be a contactless semiconductor device such as a silicon controlled rectifier (SCR).

The power supply unit 270 supplies AC power to the respective circuit units constituting the auxiliary circuit breaker 200 so that the AC power is supplied from the power supply lines L1 and L2 to the DC power supply, do. The power supply unit 270 notifies the microcomputer 250 of a power failure or power failure when power is not supplied from the power lines L1 and L2.

Hereinafter, a monitoring apparatus according to a second embodiment of the present invention will be described with reference to FIG. 4 is a diagram showing a connection relationship between monitoring devices and monitoring devices according to a second embodiment of the present invention.

As shown in FIG. 4, the monitoring apparatus according to the second embodiment of the present invention is substantially similar to the monitoring apparatus 300 according to the first embodiment of the present invention. However, the monitoring apparatus 300 according to the second embodiment of the present invention has the internal structure of the surge input analysis unit 240 configured in the auxiliary circuit breaker 200, and the monitoring apparatus 300 according to the first embodiment of the present invention, . The surge input analysis unit 240 of the monitoring apparatus 300 according to the second embodiment performs the same operation as the surge input analysis unit 240 of the monitoring apparatus 300 according to the first embodiment, (I.e., detection) to the information management unit 320. [

The monitoring apparatus 300 according to the second embodiment of the present invention has a communication unit 391. The communication unit 391 is controlled by the information management unit 320 and performs bidirectional communication with a remote terminal through a wireless LAN, a Wi-Fi module, or a Bluetooth module. The communication unit 391 is used to inform the remote site of an alarm according to the abnormal state detection or to provide information corresponding to the request of the remote terminal to the remote terminal. The communication unit 391 is used for controlling the operation of the monitoring device 300 by a remote terminal.

The auxiliary circuit breaker 200 connected to the monitoring apparatus 300 according to the second embodiment is configured as shown in FIG. 5 is a block diagram of an auxiliary circuit breaker according to a second embodiment of the present invention.

5, the auxiliary circuit breaker 200 according to the second embodiment of the present invention is constructed in a form in which the surge input analysis unit 240 is omitted from the auxiliary circuit breaker 200 according to the second embodiment of the present invention. do.

Hereinafter, the electrical leak detecting portion 220 according to the embodiment of the present invention will be described in more detail with reference to FIG. 6 is an internal configuration diagram of a used current analysis unit according to an embodiment of the present invention.

6, the electrical leak detecting section 220 includes a first differential amplifier 221 for detecting a half-wave signal among the analog signals detected from the first video current transformer 211, A second differential amplifier 221 for detecting a half wavelength of the opposite side and a half wave signal of the first differential amplifier 221 and the second differential amplifier 221 are combined to generate a radio wave, The adder 224 and the adder 224 and a predetermined signal size are compared with each other. When a value greater than the set reference signal is applied, the microcomputer 150 transmits an interrupt signal according to the occurrence of the leakage current And a comparator 225.

In addition, the electric leakage detecting part 220 further includes an AC / DC (RMS) 223 circuit for calculating a current leakage current amount with a signal detected from the first video current transformer 211. The amount of leakage current calculated from the AC / DC RMS 233 circuit is converted into a digital signal and transmitted to the microcomputer 250.

On the other hand, when a short circuit occurs, a signal waveform due to a short circuit appears as a waveform having a larger value than a normal signal. Such a waveform continuously appears at every cycle time of the signal. On the other hand, the signal waveform due to noise or surge current has a characteristic that it appears as a waveform having a larger value than a normal signal like a leakage current waveform, but appears temporarily. Therefore, if the waveform is continuously observed at every cycle time, it can be determined whether it is due to a short circuit or temporary. The microcomputer 250 determines whether an interrupt signal is received from the comparator every cycle time of the signal do.

Hereinafter, a surge penetration analyzer 240 according to an embodiment of the present invention will be described with reference to FIG. 7 is an internal configuration diagram of a surge penetration analyzer according to an embodiment of the present invention.

7, the surge input / output analyzers 240 and 370 are formed to sense power supply lines branched from the power supply lines L1 and L2 applied to the load side, and include a voltage limiting unit 241, a current limiting unit 242, a current transformer 243, and a signal sensing unit 244.

The voltage limiting unit 241 is configured to sense a power supply line branched from the power supply lines L1 and L2 so that current flows when an allowable voltage due to a surge is exceeded. The voltage restricting part 241 may be constituted by a varistor.

The current limiter 242 is configured to shut off or limit the flow of current when a surge occurs and the current transformer 243 is configured to sense the flow of current from the power line branched from the power lines L1 and L2. When the flow of current is detected from the current transformer 243, the signal is applied to the signal sensing unit 244, and the signal sensing unit 244 determines that the surge current is inputted, and outputs a sensing signal to the microcomputer 250 or the information management unit 370 ).

Hereinafter, a case where the monitoring device 300 is not connected to the busbar of the parked vehicle 100 will be described with reference to FIG. FIG. 8 is a diagram showing the connection relationship between the monitoring apparatus and each configuration according to the third embodiment of the present invention.

8, the monitoring apparatus 300 according to the third embodiment of the present invention includes the surge input analysis unit omitted in the monitoring apparatus 300 according to the second embodiment of the present invention, And is configured so as not to be connected to the bus bar of the parking terminal unit 100 so that the wiring measuring unit is omitted and configured in the parking terminal unit 100. [

The monitoring device 300 according to an embodiment of the present invention may be configured to be connected to the bus bar of the parking terminal 100 or may not be connected to the bus bar of the parking terminal 100.

According to the embodiment of the present invention configured as described above, the storage unit 340 of the monitoring device 300 stores the number of times of occurrence of a power failure, the date, the number of surge current detection times and date, the amount of used current, Information such as a date exceeding a threshold value of the leakage current, a power failure or a wiring situation is stored and information stored in the storage unit 340 is confirmed at the time of occurrence of a fire or an accident.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined 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 equivalents are to be construed as being included within the scope of the present invention do.

100: parking short term 200: auxiliary breaker
300: Monitoring device 310: Information receiving unit
320: Information management unit 330:
340: storage unit 350: display unit
360: Counting unit 370:
380: Leakage current monitoring section 390: Alarm section
391: communication unit 240: surge input analysis unit
211: first video current transformer 212: second video current transformer
220: electric leak detecting section 230: used current analyzing section
250: Microcomputer 260: Trip driver
270: Power supply

Claims (10)

RSTN in the distribution board It is installed on the 3-phase lead-in side and automatically stops the current in the event of overload or disconnect,
A plurality of auxiliary circuit breakers connected to the RSTN bus bar via the RSTN bus bar for detecting the amount of current used, the amount of leakage current, the occurrence of a short circuit, the occurrence of a surge current, and the occurrence of a power failure from the power line of the RSTN busbar;
And a monitoring device connected to each input port of the plurality of auxiliary breakers and receiving and storing information on the amount of used current, the amount of leakage current, the occurrence of leakage current, and the occurrence of a power failure from the plurality of auxiliary circuit breakers,
The monitoring device
An information receiving unit for receiving output information of an auxiliary breaker received from each input port,
An information manager for classifying the information received from the information receiver by the type of information for each of the auxiliary breakers and storing the current date and time information,
And a storage unit for storing various information collected in the information management unit by the date and time for each auxiliary breaker,
Each of the plurality of auxiliary breakers
A first video current transformer installed to detect a video current from a power line connected to the load,
A second video current transformer installed to detect a current of one of power lines connected to the load side,
An electrical leak detector for detecting an amount of leakage current at the time of sensing a video current from the first video current transformer and comparing the amount of leakage current with a set reference level,
A use current analyzer for measuring a current detected by the second video current transformer and determining a used current amount,
A power supply unit for supplying operation power to each of the components constituting the auxiliary circuit breaker and for informing occurrence of a power failure when a power failure occurs,
Receives the use current amount from the use current analysis unit, receives the occurrence of the power failure from the power supply unit, receives the leakage current amount and leakage occurrence from the leakage detection unit, provides the received information to the monitoring device, A microcomputer for performing a control operation corresponding to the occurrence of a short circuit in the occurrence judgment, and
And a trip driver for shutting off the power supply to the load according to a control operation of the microcomputer. delete delete delete The method of claim 1,
Wherein the monitoring device further includes a surge input analyzing unit for sensing a surge current drawn from a power supply line connected to the load side and informing the information management unit of a surge current generation when the surge current is sensed. The method of claim 5,
The monitoring device includes:
A counting unit for counting the number of times of detection of the surge current and counting the number of correction occurrences when the surge current detection or the power generation occurrence signal is received from the information management unit,
A use current monitoring unit for comparing the used current amount of each of the plurality of auxiliary circuit breakers with a first threshold value that is set and recording the used current amount in the storage unit when the used current amount is equal to or greater than the first threshold value,
A leakage current monitoring unit comparing the amount of leakage current received from each of the plurality of auxiliary circuit breakers with a second threshold value that is set and recording the leakage current amount in the storage unit when the leakage current amount is equal to or greater than the second threshold value, And
And an alarm unit for performing an alarm operation for displaying a warning sound or a warning light when a signal indicating exceedance of the threshold value is received from the used current monitoring unit or the leakage current monitoring unit,
Further comprising a black box. The method of claim 5,
The monitoring device is connected to the RSTN bus bar via the RSTN bus bar. The monitoring device measures a voltage provided through the R, S, and T busbars based on the N busbars to determine whether the R, S, And a black box. 8. The method of claim 7,
The parking terminal further includes a wiring measuring unit for measuring a voltage provided through the R, S, and T busbars to determine whether the R, S, and T power lines are connected,
And a black box for providing the monitoring information to the monitoring device. The method of claim 1,
The electric-
A first differential amplifier for detecting a half-wave signal of the analog signal detected from the first video current transformer,
A second differential amplifier for detecting a half wavelength of the opposite side of the first differential amplifier,
An adder for combining the half-wave signals of the first differential amplifier and the second differential amplifier to generate a radio wave,
A comparator for comparing the magnitude of a signal applied from the adder with a magnitude of a preset reference signal and transmitting an interrupt signal to the microcomputer when a signal having a magnitude greater than a reference signal is applied,
An AC / DC RMS circuit for calculating a current leakage current amount with a signal detected from the first video current transformer
And a black box. The method of claim 5,
The surge input /
A voltage limiting unit configured to sense a power supply line branched from a power supply line and to cause a current to flow when an allowable voltage is exceeded due to a surge input,
A current limiter configured to block or limit the flow of current when a surge occurs,
A current transformer configured to sense a current flow from a power supply line bifurcated from the power supply line, and
And a signal sensing unit for sensing a surge current when the current flows from the current transformer and transmitting a sensing signal to the microcomputer,
And a black box.

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