KR200288251Y1 - Electric leakage over load detection an alarm - Google Patents

Abstract

The present invention is a device for the user of each customer to easily manage the electric current condition such as leakage, load current, etc. of the electrical facilities in the workplace and the house in the industrial and residential electrical facilities. Such as expensive or large system of remote or centralized management, which displays the state of short circuit, power consumption, etc. on the main board of the distribution board 10 or the ground fault overload breaker 20, or the electrical use of the corresponding electrical equipment in the terminal type. Rather than checking the status, it is a low-cost, small-sized terminal-type short-circuit overload detection alarm that allows the user to easily attach and check the status of the entire indoor line.

In addition, it is possible to display the amount of electricity calculated by the additional power consumption and the electric charge on the short circuit overload detection alarm.If the power is cut off due to a short circuit, an overload or an actual electric fire, The function of storing the information just before blocking is added so that it is possible to know whether it is blocked by overload, overload by overload or blackout of outdoor line.

To this end, the present invention converts the leakage current and the load current in the corresponding electrical equipment detected by the current leakage and overload breaker 10 into respective signals, and outputs the output signal to the power line in the electrical installation by the power line communication transmitter 30b. The signal is transmitted to the signal indicator 60 attached to a place through which the user's identification management is easy. The receiving unit 60a of the signal indicator 60 displays the amount of leakage current and the amount of load current that are shorted according to the amount of each signal received through the display means, and the amount of each set leakage current or the amount of load current. When it becomes larger, the alarm unit 60c is characterized in that the alarm of the current leakage and overload situation with a buzzer or a lamp.

Description

ELECTRIC LEAKAGE OVER LOAD DETECTION AN ALARM}

The earth leakage breaker is a method of operating the mechanism by operating the drive circuit by operating the drive circuit when the leakage current is detected by the earth leakage detector in the earth leakage circuit breaker when the leakage current exceeds the specified value. In case of circuit breaker, bimetal type is generally applied. When overload occurs in electric circuit below main circuit, the bimetal moves and trips the trip bar of the mechanism, so the overload breaker operates and is called as a circuit breaker. It can be used as a circuit breaker or a combined circuit breaker.

The earth leakage breaker or overload breaker is installed in the switchboard or distribution panel 10 which is drawn indoors or outdoors, or is installed alone, and protects against short circuit and overload of all electric circuits in the indoor wiring. Conventional alarm and display method of earth leakage and overload circuit breaker is not applicable to general products in consideration of product price and its effect. However, for special purpose products, the body or distribution panel of earth leakage circuit breaker and overload circuit breaker or Alarms, LEDs, LCDs and other alarms and display methods are applied to switchboards, and protection relays and earth leakage alarms are used for power management such as central control monitoring.

Therefore, actual leakage, overload alarm, and display method are applied to centralized power management sites such as large industrial sites, intelligent buildings, and apartments, and are used in homes, small and medium-sized apartments, factories, and other buildings. General earth leakage breakers and overload breakers with no alarm or indication are installed. In addition, the breaker to which the alarm and indication method is applied is also installed in the distribution panel 10 and the distribution panel of the main, so it is difficult to always manage the situation of the converter, and in the case of an earth leakage overload circuit breaker without alarm or indication, an accident occurs. Because it operates in the area, it is difficult to prevent disasters such as electric fire and electric shock.

The purpose of the present invention is to prevent damage from electrical disasters such as telephone leakage, electric shock, and overload fire, and to facilitate the management of the leakage or overload condition and the amount of power that are gradually generated and increased in the electric circuit for power saving. By attaching to the outlet of user's desired place and installing the display unit to know the degree of leakage, overload and power amount, and alarming when leakage or overload occurs above the set value, the circuit breaker operation method in the conventional circuit breaker operation method is It is for the purpose of protection and it provides the function to save the short-circuit and overload information just after the accident.

In addition, the present invention is a technology that utilizes amplified data detected by ZCT in a ground fault circuit breaker, rather than a new way of detecting a ground fault and an overload. The present invention relates to an earth leakage and overload detection alarm that provides power savings and safety by enabling the display unit attached to the outlet to check the leakage current and load consumption current of the electric circuit below the main circuit using power line communication.

1 is a block diagram showing the configuration of the earth leakage overload detection alarm using an improved earth leakage overload circuit breaker (20) consisting of a circuit portion 30 embedded in the PCB of the conventional earth leakage overload circuit breaker of the present invention.

Figure 2 is a block diagram showing the configuration of the earth leakage overload detection alarm by attaching the circuit portion of the present invention to the conventional earth leakage overload circuit breaker 20 as an external circuit portion 70.

<Explanation of symbols for the main parts of the drawings>

10. Distribution board 20. Leakage and overload breaker 30. Built-in circuit part 30a. Output part

30b Transmitter 30c Transmitter 40 Power line 50 Outlet

60.Signal indicator 60a.Receiver part 60b.Display part 60c.Alarm part 70.External circuit part

The present invention for solving the above technical problem is a ground fault overload circuit breaker 20 is installed in a conventional distribution panel (10) or switchboard; An output unit (30a) for signal conversion between the leakage current and the load current data detected by the ground fault overload circuit breaker (20); And a transmission unit 30b for transmitting the converted signal through power line communication, comprising: a terminal signal indicator 60 inserted into an outlet to receive data transmitted to the power line 40 of the indoor wiring; The terminal signal display 60 includes a data receiving unit 60a, an alarm unit 60c, and a display unit 60b, and the display unit 60b displays a leakage current amount and a consumption current amount.

The above-described ground fault overload detection alarm will be described in detail with reference to the accompanying drawings. 1 is a circuit diagram of the built-in circuit unit 30 according to the present invention is installed in the PCB of the conventional earth leakage overload circuit breaker 20, the configuration of the earth leakage, overload detection alarm using the improved type of earth leakage overload circuit breaker 20. When electric power is drawn into the building from the conventional outdoor, electric power is supplied to the branch circuit of the indoor wiring via the earth leakage overload circuit breaker 20 in the distribution panel 10.

The branch circuit is used in a variety of branches, such as the outlet circuit, electric light circuit, and independent circuits such as air conditioners or heaters, and circuits that are applied for a separate purpose. The leakage current detected and detected by the ZCT in the overload circuit breaker 20 is amplified and transmitted to the signal conversion output unit 30a. The signal conversion output unit 30a converts the signal digitally and sends the signal to the power line communication transmitter 30b. The power line transmitter 30b transmits the digital conversion signal of the leakage current to all branch circuits in the indoor wiring through the power line 40.

The transmitted signal is a power line communication receiving unit 60a in the terminal signal indicator 60 is plugged into the terminal signal indicator 60 is plugged into one side of the outlet 50 is easy to use management of the user of the outlet circuit; The amount of leakage current is displayed on the display unit 60b by the LCD or LED by the received converted signal, and the user can manage the leakage of the indoor leakage by always checking the leakage current of the leakage leakage circuit breaker 20. When a leakage current higher than the cutoff set value is generated, the ground fault overload circuit breaker 20 installed at the inlet of the distribution panel 10 or the indoor power line 40 is operated to cut off the power.

Even if a leakage current higher than the leakage current blocking set value of the ground fault overload circuit breaker 20 is generated, the ground fault overload breaker is malfunctioned by a lamp and a buzzer of the alarm unit 60c when the ground fault overload breaker 20 is not operated and power is continuously supplied. Notifies the user and warns of danger. In addition, the load current generated when the load is generated by the use of power in each branch circuit is detected and operates in the same manner as the ground fault operation function.

In the case of the load current management, the power consumption of the entire indoor sub-conductor below the main is calculated to provide a function of displaying the power consumption amount and the electric charge on the display, and the leakage current amount and the load current amount indicated on the display in real time are stored in the outlet 50. When the power of the leakage leakage overload combined alarm is cut off, there is a power switch that can store the information just before the interruption by the built-in battery.

As described above, the earth leakage overload detection alarm of the present invention is not composed of remote or centralized expensive, large-scale systems for load management and power management. The leakage of the load by using the various loads, the degree of overload can always be plugged into the outlet 50 of the desired place to check and manage, while the existing ground fault overload circuit breaker 20 is blocked at the time of the accident, Since the design continuously manages the level of leakage and overload before an accident occurs, it can prevent or prevent the occurrence of electric fire and electric shock by eliminating or improving the cause of leakage current or overload.

In addition, it helps to save power by eliminating the cause of power waste due to leakage current, and it gives energy to the overload power consumption electric appliances by displaying the load current, power consumption and electricity charge of the entire indoor line at the desired place. When the indoor line is cut off, it remembers the line information just before the cut, so it is possible to find out whether it is cut off due to short circuit, overload or power outage of the outdoor line. This can also help identify the cause of an electrical fire.

Claims (3)

An earth leakage overload circuit breaker 20 and a detection system for detecting a line state related to an earth leakage overload of an indoor line, which is an electrical facility for industrial and residential use, and shuts off the current leakage and overload. An output unit 30a which detects the electrical situation of the indoor line by 20) and converts the amplified leakage current and load current data into a signal capable of transmission; A transmitter (30b) which transmits the converted signal anywhere in an indoor line using a power line communication modem; Built-in power line communication receiving unit 60a for receiving signals of leakage current and load current transmitted by plugging into outlet 50 in the indoor line, and display unit 60b for displaying the received signal by LED or LCD, and set leakage current And an alarm unit (60c) for alarming by a lamp and an alarm when the load current is higher than the load current, and includes a function of storing leakage current and load current information, which is a line condition immediately before the power failure by a battery when the electricity of the indoor line is cut off. An earth leakage overload detection alarm, characterized in that consisting of the terminal signal indicator 60. The circuit of claim 1, wherein the output unit (30a) and the power line communication transmitter (30b) comprise an internal circuit portion (30) inserted into a circuit portion of a conventional earth leakage overload circuit breaker (20) and a conventional earth leakage overload circuit breaker (20). An earth leakage overload detection alarm, characterized in that consisting of an external circuit portion 70 to be connected from the outside. The display unit 60b of the signal indicator 60 calculates the load current received by the terminal signal indicator 60 by detecting the load current of the entire indoor line by the main leakage overload breaker 20. By indicating the amount of power consumed by the user, the earth leakage overload detection alarm, characterized in that the user has a display that can easily check the total electricity usage in the indoor line anywhere in the line.