KR20210145939A - Self-diagnosis type earth leakage breaker - Google Patents

Abstract

According to the present invention, an earth leakage circuit breaker with self-diagnosis determines fault and defect status of a unique function of an earth leakage circuit breaker through a self-diagnosis function to notify a user of the fault and defect status, prevents a power outage of an entire household even during an earth leakage shutoff test, allows automatic restoration even after the earth leakage shutoff test is completed, diagnoses mechanical and electrical fault status by creating the same earth leakage situation as a real situation by performing the self-diagnosis function through a simple operation of a user or an inspection worker or regular inspection through a schedule in the unique function of the earth leakage circuit breaker, sounds an alarm with naked eyes and noise to notify the user of fault status to be replaced to prevent electrical problems, reduces a heavy burden of human and physical inspection resources for the regular inspection of the Korea Electrical Safety Corporation, and prevents a power outage of an entire household during a self-diagnosis test to safely maintain electrical loads in use without interruption to prevent user complaints and accidents.

Description

Self-diagnosis type earth leakage breaker {SELF-DIAGNOSIS TYPE EARTH LEAKAGE BREAKER}

The present invention relates to a self-diagnosis type earth leakage breaker, and more particularly, to a self-diagnostic type earth leakage breaker that prevents power failure of the entire household during an earth leakage test, and enables automatic restoration even after the test is completed in case of earth leakage will be.

An Earth leakage breaker (ELB) performs a function of shutting off the applied power when a leakage current of a certain level or more occurs, thereby protecting facilities such as equipment.

Accordingly, at least one earth leakage breaker of various types is essential for safety in all homes, buildings, and other power facilities.

In addition, the earth leakage breaker is designed to quickly detect and block the leakage current that leaks to the ground where the device is installed, thereby preventing an electric shock accident to the human body and suppressing a fire caused by deterioration of the device and line caused by the leakage current. It is installed and operated in most load circuits to which AC is supplied.

On the other hand, the Korea Electric Safety Corporation conducts regular inspections through inspectors for each household and building in Korea every 1-3 years. , there is a limit to regular inspection, so a certain amount of defects is inevitable through regular inspection. Mechanical or electrical and electronic defects are occurring due to short circuit of equipment and frequent use by users, which may lead to electrical safety accidents, electric shocks, and personal accidents in the future, and accidents are actually occurring.

Accordingly, the government and construction companies are promoting and broadcasting to recommend that users perform an earth leakage test once a month, but users are not doing it properly due to the anxiety of power outages and earth leakage tests.

Accordingly, for households, buildings, and other electric power facilities that require commercial power across the country, the Ministry of Trade, Industry and Energy and the city and provincial governors ask whether the approval of the electric facility construction plan including the earth leakage breaker and whether the reported content meets the technical standards for electric facilities Electricity facilities such as households and buildings that have passed the inspection are inspected before use by the Korea Electric Safety Corporation, and are regularly inspected through the inspection finance of the Korea Electric Safety Corporation. It is recommended to conduct an earth leakage breaker test.

Due to the installation of the earth leakage breaker and the regular inspection of the earth leakage breaker by the Korea Electric Safety Corporation, the number of casualties has decreased, but the faulty operation of the earth leakage breaker due to the manufacturing process defect of the earth leakage breaker and mechanical and electrical and electronic failures according to the usage environment. And human accidents are occurring steadily, and problems such as blackout accidents or instantaneous voltage drop are caused during facility operation.

In addition, it is often very difficult to find the cause of an accident when the earth leakage breaker installed to protect the facilities of the unmanned base is malfunctioning. The inconvenience of having to visit the site for the facility operator ensues.

On the other hand, in the case of existing earth leakage breaker, it is recommended that the user press the test button about once a month in order to check whether there is an abnormality in the earth leakage detection part, and it is operated when the test button is pressed. will judge

The earth leakage detection unit of the earth leakage breaker is regulated by law to operate with a leakage current of 30 mA or more, but not operate with a leakage current of 15 mA or less.

In other words, for leakage current of 15mA or less, which is not related to safety, the earth leakage breaker should not operate. It only checks whether or not there is an abnormality in the earth leakage detection unit, and it may have a problem of tripping the main circuit as it considers leakage current of 15mA or less to be inactive as a leakage current.

Accordingly, the earth leakage detection unit of the earth leakage breaker operates even with a minute leakage current, which causes the main circuit to trip, that is, to generate a non-electric signal, which causes inconvenience in use, and furthermore, there is a problem that may cause property damage due to a power outage.

That is, a general earth leakage breaker includes a signal generator that converts AC power input from the outside into DC and generates a voltage or reference signal or current required for the operation of each part, and a leakage output from the zero-phase current transformer when an electric circuit leakage occurs. A leakage current detection circuit comprising a signal processing unit for performing amplification, etc. processing on the current sensing signal, and a signal output unit for determining whether to block the electric line by the signal processed by the signal processing unit and outputting a necessary blocking signal Accordingly, Korean Patent Application Laid-Open No. 10-2010-0080188 (published on Jul. 08, 2010) and Japanese Patent Application Laid-Open No. 57-95132 (published on Jun. 12, 1982) have the same configuration as above. There is disclosed a leakage current detection device of the earth leakage breaker having a.

However, a BJT (Bipolar Function Transistor) element of 1 μm or more, and in some cases 100 μm or more, was used as circuit elements constituting the signal generating unit, signal processing unit, and signal output unit, and accordingly, the leakage current detection device There are limitations in miniaturization, high speed, and low power consumption.

Therefore, the conventionally implemented earth leakage breaker has a problem in that it has no choice but to cut off the power to the entire household in order to perform a test to check whether the earth leakage breaker is faulty, and thus the necessary power cannot be supplied. Even after completion, the message is not automatically supplied, and when the earth leakage breaker trips and the power is cut off simply due to factors such as short circuit or surge overvoltage due to lightning, there is a problem in that the circuit breaker is not supplied with power after the cause of the trip is resolved.

Republic of Korea Patent Publication No. 10-2010-0080188 (published date: 2010. 07. 08.) Japanese Patent Application Laid-Open No. 57-95132 (published date: June 12, 1982)

It is an object of the present invention to determine the failure or defect of the inherent function of the earth leakage breaker through the self-diagnosis function and notify the user, prevent power failure of the entire furniture during the earth leakage interruption test, and automatically restore even after the test is completed when the earth leakage shutoff test is completed It is to provide a self-diagnostic type earth leakage breaker that makes this possible.

In addition, the present invention performs a self-diagnosis function through a regular or simple operation by the user and inspection resources through a schedule in the inherent function of the earth leakage breaker to generate the same earth leakage situation as in reality to diagnose whether mechanical or electrical failure occurs, It is to provide a self-diagnostic type earth leakage breaker to prevent electrical safety accidents by generating an alarm with noise and the naked eye to inform the user of the failure and to replace it.

In addition, the present invention reduces the burden of human and material inspection resources for regular inspection of the Korea Electrical Safety Corporation, prevents power outages in the entire household during self-diagnosis tests, and safely maintains the electric load in use without interruption to prevent user complaints and It is to provide a self-diagnostic type earth leakage breaker that can prevent accidents in advance.

In addition, the present invention is to provide a self-diagnostic type earth leakage breaker that enables monitoring such as control through a main server or a portable terminal by interworking with an earth leakage breaker in each home based on the Internet of Things (IoT).

The present invention is an earth leakage breaker for cutting off power supplied to a building of a home or business place by a factor of surge overvoltage caused by an earth leakage or lightning, wherein the earth leakage breaker is implemented based on the Internet of Things (IoT), and each home or By monitoring and controlling the information of the earth leakage breaker installed in the building of the business site, the earth leakage interruption test can be conducted without a power outage that cuts off the power supplied to the furniture or the building of the business site. so that it can be restored automatically.

Accordingly, the earth leakage breaker is a power inlet to which commercial power is introduced in order to supply power to a building of a household or business place during the earth leakage interruption test, and to cut off the power introduced through the power inlet during the earth leakage interruption test. The main end, the bypass unit for continuously supplying power while the power is cut off through the parking end, and the bypass unit during the earth leakage interruption test to receive power through the bypass unit, A power outlet to receive power from the main end of which power is not cut off, a leakage current measuring unit to measure the leakage current through the main end during an earth leakage test, and a state of interruption through the parking end during an earth leakage test. A cut-off state detection unit, the auxiliary power unit for charging by receiving power from the power inlet, and supplying the charged power when power is not supplied through the power inlet, and the auxiliary power unit in case of an emergency such as a power outage It consists of a power failure detection unit for detecting whether power is supplied, and a control unit that receives and drives power from the auxiliary power unit, and receives signals output from the leakage current measurement unit, the cut-off state detection unit and the power failure detection unit to control and drive it. .

Here, when the earth leakage breaking test is completed through the control signal of the control unit, the bypass driving unit for cutting off the power of the bypass unit to which power is applied, and the power supply when the earth leakage breaking test is completed through the control signal of the control unit It further includes a motor driven by a signal from the motor driving unit and a stopper driving unit for driving the motor so that the breaker of the main end can be raised to the On position so that power can be applied through the blocked main end. is done by

In addition, it further comprises a power detection unit for detecting the voltage for the power supplied through the power withdrawal unit to transmit the sensed signal to the control unit.

In addition, the control unit includes a communication unit that receives test information shared in real time from an earth leakage breaker through short-distance or long-distance wireless communication, and interworks with a main server or a portable terminal to enable monitoring by displaying the received test information on a program screen further including

And, the earth leakage breaker is provided with a power inlet for connecting so that commercial power can be applied to one side of the front upper side, and the applied power is installed in the building of each home or business place at the lower front side, such as a lighting lamp provided A power outlet is provided so as to be supplied to a load, a cut-off lever is provided at the lower end of the power inlet, and a ground leakage cut-off test button for checking whether the shut-off lever operates smoothly is provided at the lower end of the shut-off lever, the A power lamp is provided at the upper end of the power outlet to indicate whether the power supplied to the load is normally supplied.

Accordingly, an error display lamp is provided at the right end of the power lamp to notify when an error of the earth leakage breaker occurs, and the earth leakage breaker is provided with a buzzer to notify an error or a state during the earth leakage test by sound.

In addition, a non-interruptible self-diagnosis test button for driving the non-interruptible self-diagnosis for the earth leakage test is provided on the front central portion of the earth leakage breaker.

In addition, an IoT interface terminal is provided at the left end of the power lamp to be implemented based on the Internet of Things (IoT).

In addition, between the power inlet and the power outlet, a coupling hole is provided to enable compatibility installation at the position of the earth leakage breaker to be replaced when replacing the main earth leakage breaker or branch earth leakage breaker provided in the existing distribution box. is done

On the other hand, in the earth leakage breaker, the operation of the main circuit breaker is monitored by photo-interrupt, and the state of the primary side power and the secondary side power are compared to determine whether it is a mechanical failure or an electrical and electronic failure for each trip situation. .

In addition, the earth leakage breaker is configured to suppress the arc generation by performing bypass-on at a zero-cross point, and to prevent damage and failure of the bypass point.

The present invention, which is implemented above, notifies the user of the failure of the inherent function of the earth leakage breaker through the self-diagnosis test, and has the effect that the power supplied to the furniture or the building of the workplace is not cut off as a whole during the earth leakage interruption test, and the earth leakage cutoff It has the effect of enabling automatic restoration even after the trial test is completed.

In addition, since the present invention is implemented based on the Internet of Things (IoT), the present invention has an effect of enabling monitoring such as control through a main server or a portable terminal that can be linked with the earth leakage breaker.

1 is a block diagram illustrating an exemplary configuration of a self-diagnostic type earth leakage breaker to explain the present invention.
2 is an exemplary view showing the front of a self-diagnostic type earth leakage breaker to be implemented according to the present invention.
3 is an exploded view showing the implementation configuration of a self-diagnostic type earth leakage breaker to implement according to the present invention.
4 is a flow configuration diagram for explaining the flow of the earth leakage interruption test of the self-diagnostic type earth leakage breaker carried out according to the present invention.
5 is an exemplary diagram for explaining the alarm function of the self-diagnosis type earth leakage breaker implemented according to the present invention.
6 is an exemplary view showing a monitoring program screen for confirming the implementation state of the self-diagnostic type earth leakage breaker according to the present invention.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily practice the present invention.

However, in describing the preferred embodiment of the present invention in detail, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, the same or similar reference numerals are used throughout the drawings for parts having similar functions and functions.

In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

Hereinafter, a self-diagnostic type earth leakage breaker of the present invention will be described with reference to the accompanying drawings.

Prior to explaining the present invention, the earth leakage breaker is for cutting off the power supplied to the building of the home or business place due to a factor of surge overvoltage due to an earth leakage or lightning strike.

Accordingly, the earth leakage breaker according to the present invention is implemented based on the Internet of Things (IoT), and by monitoring and controlling the information of the earth leakage breaker installed in the building of each home or business, the power supplied to the building of the household or business is cut off. The earth leakage breaker test can be carried out without a power outage, and the earth leakage breaker can be automatically restored after the test is completed when the earth leakage is interrupted.

First, as shown in the accompanying drawings Figs. 1 to 4, Fig. 1 is an exemplary block configuration diagram showing the implementation configuration of a self-diagnostic type earth leakage breaker to explain the present invention, and Fig. 2 is for implementing according to the present invention It is an exemplary view showing the front of the self-diagnostic type earth leakage breaker, Figure 3 is an exploded view showing the implementation configuration of the self-diagnosing type earth leakage breaker to be implemented according to the present invention, and Fig. 4 is a self-diagnostic type implemented according to the present invention This is a flow diagram to explain the flow of the earth leakage interruption test of the earth leakage breaker.

Accordingly, the self-diagnosis type earth leakage breaker according to the present invention is provided with a power supply inlet 10 into which commercial power is introduced in order to supply power to a building of a household or business place during an earth leakage interruption test, and is parked during the earth leakage interruption test. The end 20 cuts off the power introduced through the power inlet 10 .

At this time, in a state in which the power is cut off through the main end unit 20, the bypass unit 30 can continuously supply power, and during the earth leakage interruption test, the power take-out unit 40 supplies power to the bypass unit 30 ), and receive power from the parking end 20 that is not turned off during normal times, not during the earth leakage test.

Here, the current measuring unit 50 measures the leakage current through the main end 20 during the earth leakage test, and the cut-off state detection unit 60 detects the cut-off state through the main end 20 during the earth leakage test. do.

In addition, the auxiliary power supply unit 70 receives power from the power supply unit 10 for charging, and supplies the charged power when power is not supplied through the power supply unit 10 .

In addition, the power failure detection unit 80 detects whether the power of the auxiliary power supply unit 70 is supplied in an emergency such as a power failure, receives power from the auxiliary power source unit 70 to drive, and the leakage current measurement unit 50 ), the block state detection unit 60 and the control unit 90 for controlling and driving the signal output from the power failure detection unit 80 is provided.

Here, the bypass driving unit 100 cuts off the power of the bypass unit 30 to which power is applied when the earth leakage interruption test is completed through the control signal of the control unit 90, and the control unit 90 ) of the motor to raise the breaker of the main end 20 to the On position so that power can be applied through the main end 20 where the power is cut off when the earth leakage test is completed through the control signal of It is provided with a motor driving unit 110 for driving 120 and a motor 120 driven by a signal from the motor driving unit 110 .

In addition, a power detection unit 130 for detecting a voltage for power supplied through the power take-out unit 40 and transmitting the sensed signal to the control unit 90 is provided.

A communication unit 140 interworking with the control unit 90 is provided, which receives test information shared in real time from an earth leakage breaker through short-distance or long-distance wireless communication, and displays the received test information on a program screen In order to enable monitoring by interworking with the main server or portable terminal.

The earth leakage breaker implemented as described above is provided with a power inlet 10 for connecting to one side of the upper front side so that commercial power can be applied, and the power outlet 40 supplies the applied power to each home or business place. Installed in a building of , at the lower end of the cut-off lever 21 is provided with an earth leakage cut-off test button 22 to check whether the operation of the cut-off lever 21 is performed smoothly.

In addition, a power lamp 41 is provided at the upper end of the power take-out unit 40 to indicate whether the power supplied to the load is normally supplied.

An error display lamp 42 is provided at the right end of the power lamp 41, which notifies when an error of the earth leakage breaker occurs. A buzzer for generating a sound is provided separately.

In addition, an uninterruptible self-diagnosis test button 43 is provided on the front center of the earth leakage breaker, which drives the non-interruptible self-diagnosis for the earth leakage test.

In addition, an IoT interface terminal 44 is provided at the left end of the power lamp 41 , which is to be implemented based on the Internet of Things (IoT).

A coupling hole 45 is provided between the power inlet 10, and a coupling hole 45 is provided between the power outlet 40, respectively, which is a main earth leakage breaker provided in an existing distribution box. Alternatively, if the branch earth leakage breaker is replaced, it is made so that it can be installed interchangeably at the position of the earth leakage breaker to be replaced.

As described above, the earth leakage breaker according to the present invention determines the failure of the inherent function of the earth leakage breaker through a self-diagnosis test, and performs the earth leakage interruption test without shutting off the power supplied to the building of the furniture or business place. It can be done, and the earth leakage breaker can be automatically restored even after the test is completed in case of earth leakage interruption.

Here, since the earth leakage breaker is equipped with a function capable of self-diagnostic testing, failures and defects of the earth leakage breaker's unique function are determined through a schedule for automatically performing self-diagnosis.

In particular, the self-diagnostic test is performed on the earth leakage breaker in a state where there is no power outage, which can safely test the electric load being used without interruption, so that accidents and user complaints can be resolved.

To this end, a self-diagnosis is performed on a trial basis to check the state of the earth leakage breaker. At this time, when the self-diagnosis starts (S10), the power applied previously through the bypass provided in the earth leakage breaker of the present invention. It becomes the bypass-on (S20) that allows it to be supplied to the load as it is without shutting off (power outage) (power applied to the home or business building).

Accordingly, it is possible to test the state of the earth leakage breaker while receiving power without the load provided in each home or office building being blackout.

As described above, in the bypass-on (S20) state, the test leakage current (S30) is generated.

At this time, when the test leakage current S30 is generated in the bypass-on state (S20), the trip operation of the earth leakage breaker is checked (S40), and the trip operation is successful (S50), that is, the trip When the operation is normally performed, the earth leakage breaker automatically returns (S60), the bypass on (S20) state changes to bypass off (S70), and the test for the earth leakage breaker ends (S80) at the same time Normal operation of the tested earth leakage breaker will start.

If the trip operation is not normally performed, it is confirmed that there is an abnormality in the earth leakage breaker itself and informs it by a buzzer and an alarm.

In addition, if the above-mentioned earth leakage breaker does not automatically return and fails (S90), retry about 3 times. will be.

Accordingly, the attached drawing FIG. 5 is an exemplary view for explaining the alarm function of the self-diagnosis type earth leakage breaker implemented according to the present invention, which is an error in a state in which the blocking lever 21 of the main end 20 is not returned. is generated or when an earth leakage is interrupted, a buzzer is continuously generated and displayed through a lamp (LED) to allow the user to confirm that there is an abnormality. When abnormalities such as , breaking failure or contact fusion occur, the status of the earth leakage breaker can be efficiently checked because the buzzer or lamp (LED) can be displayed differently so that the tester or manager can easily identify and check them.

In addition, the attached drawing 6 is an exemplary view showing a monitoring program screen for confirming the implementation state of the self-diagnostic earth leakage breaker according to the present invention, and the earth leakage breaker according to the present invention is implemented based on the Internet of Things (IoT). , it is possible to link with the main server (not shown) of companies that manage electricity, such as the Battery Safety Corporation, so that the test status can be checked and controlled in real time through the program screen that can be monitored of the main server, and the bypass on ( If the leakage current 30 for the test is generated in the state of 20), the measurement waveform of the leakage current can be checked through the screen.

As such, through the monitoring program screen implemented by the present invention, even at a short distance or a distance

The leakage current waveform can be checked in real time, the On/Off control and status of the blocking lever 21 of the main end 20 can be checked, and the input power and output power monitoring (normal detection and non-detection) functions are performed, Because it can be implemented to perform the earth leakage trip remote test function, perform the uninterruptible self-diagnosis remote test function, and perform the schedule setting function for self-diagnosis, the tester or manager can efficiently check the status of the earth leakage breaker or You can do self-diagnostic tests.

Accordingly, the earth leakage breaker is capable of short-distance or long-distance wireless communication, so that a tester or administrator to test the earth leakage breaker can test or control the earth leakage breaker through a portable terminal (not shown) even at a certain distance, At this time, the portable terminal receives the test information shared in real time from the corresponding earth leakage breaker, displays the received test information on a program screen to confirm, and at the same time can control the corresponding earth leakage breaker.

The wireless communication method in the above can be selectively applied and used among short-distance wireless communication such as RF communication, Bluetooth, Wi-Fi, ZigBee, and long-distance wireless communication such as LTE and 5G, It should be noted that the present invention is not limited.

Accordingly, in the earth leakage breaker, the operation of the main circuit breaker is monitored by photo-interrupt, and at the same time, the state of the primary power and the secondary power is compared, and mechanical failures (always on due to contact fusion, It is possible to determine in detail whether it is short circuit due to progressive failure) or electrical and electronic failure (electrical and electronic failure of thermal drive) In this way, it is possible to suppress the arc generation, thereby preventing damage and failure of the bypass point as a whole.

In the above, specific embodiments of the self-diagnostic type earth leakage breaker according to the present invention have been described, but it is apparent that various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be conveyed limited to the described embodiments, and should be defined by not only the claims described below, but also the claims and equivalents.

That is, it should be understood that the above-described embodiment is illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims; All changes or modifications derived from the concept of equivalents thereof should be construed as being included in the scope of the present invention.

10: power inlet
20: parking end
30: bypass unit
40: power outlet
50: current measuring part
60: blocking state detection unit
70: auxiliary power supply
80: blackout detection unit
90: control unit
100: bypass driving part
110: motor driving unit
120: motor
130: power sensing unit
140: communication department

Claims (10)

In the earth leakage circuit breaker for cutting off the power supplied to the building of the home or business place by the factor of surge overvoltage due to leakage or lightning,
The earth leakage breaker is implemented based on the Internet of Things (IoT), and by monitoring and controlling the information of the earth leakage breaker installed in the building of each home or business, it cuts off the power supplied to the building of the household or business without a power outage. Self-diagnostic type earth leakage breaker characterized in that it can proceed with a breaking test and automatically restores the earth leakage breaker even after the test is completed when the earth leakage is interrupted.
According to claim 1,
The earth leakage breaker has a power inlet to which commercial power is supplied in order to supply power to a building of a household or business place during the earth leakage interruption test, and a parking end to cut off the power introduced through the power inlet during the earth leakage interruption test. And, a bypass unit for continuously supplying power in a state in which power is cut off through the parking end, and power is applied through the bypass unit during the earth leakage interruption test, and the power is supplied normally, not during the earth leakage interruption test. A power outlet for receiving power from the unblocked main end, a leakage current measuring unit for measuring the leakage current through the main end during an earth leakage test, and a cut-off state for detecting the cut-off state through the main end during an earth leakage test The sensing unit, the auxiliary power unit for charging by receiving power from the power inlet, and supplying the charged power when power is not supplied through the power inlet, and whether the auxiliary power unit is supplied with power in an emergency such as a power outage It comprises a power failure detection unit for detecting the power supply and driving by receiving power from the auxiliary power unit, and a control unit that receives signals output from the leakage current measurement unit, the cut-off state detection unit, and the power failure detection unit to control and drive it. self-diagnostic type earth leakage breaker.
3. The method of claim 2,
When the earth leakage interruption test is completed through the control signal of the control unit, the bypass driving unit for cutting off the power of the bypass unit to which power is applied, and the power is cut off when the earth leakage interruption test is completed through the control signal of the control unit, It further comprises a motor driven by a signal from the motor driving unit and a shutter driving unit for driving the motor to raise the circuit breaker of the main end to the On position so that power can be applied through the main end. A self-diagnostic type earth leakage breaker characterized.
3. The method of claim 2,
The self-diagnosis type earth leakage breaker according to claim 1, further comprising a power detection unit configured to sense a voltage for power supplied through the power take-out unit and transmit the sensed signal to the control unit.
3. The method of claim 2,
The control unit further includes a communication unit operable with a main server or a portable terminal to receive test information shared in real time from the earth leakage breaker through short-distance or long-distance wireless communication, and to display the received test information on a program screen to enable monitoring Self-diagnosis type earth leakage breaker, characterized in that made by
According to claim 1,
The earth leakage breaker is provided with a power inlet for connecting so that commercial power can be applied to one side of the upper front side, and the applied power is supplied to the lower side of the front side to a load such as a lighting lamp installed in a building of each home or business place A power outlet is provided so as to be supplied, a cut-off lever is provided at the lower end of the power inlet, and a ground leakage test button for checking whether the shut-off lever operates smoothly is provided at the lower end of the cut-off lever, and the power take-out Self-diagnosis type earth leakage breaker, characterized in that the upper part of the unit is provided with a power lamp to indicate whether the power supplied to the load is normally supplied.
7. The method of claim 6,
An error indicator lamp is provided at the right end of the power lamp to notify when an error of the earth leakage breaker occurs, and the earth leakage breaker is provided with a buzzer to notify an error or a state during the earth leakage test by sound. Self-diagnosis type earth leakage breaker.
7. The method of claim 6,
Between the power inlet and the power outlet, a coupling hole is provided to enable compatibility to be installed in the position of the earth leakage breaker to be replaced when replacing the main earth leakage breaker or branch earth leakage breaker provided in the existing distribution box. A self-diagnostic type earth leakage breaker characterized.
According to claim 1,
In the earth leakage breaker, the operation of the main circuit breaker is monitored by photo-interrupt, and the state of the primary and secondary power is compared to determine whether it is a mechanical failure or an electrical and electronic failure for each trip situation. self-diagnostic type earth leakage breaker.
According to claim 1,
The self-diagnostic type earth leakage breaker, characterized in that the bypass on is performed at a zero cross point in the earth leakage breaker to suppress arc generation, and to prevent damage and failure of the bypass point.

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