KR100852185B1 - electric power analysis recorder for electric safety check - Google Patents

Abstract

The present invention relates to a power analysis recorder for electrical safety check for fire prevention, electrical accident prevention, electrical accident analysis, the output terminal side of the current transformer and the video current transformer installed in the main circuit breaker of the distribution panel connected to the main device or the wire of the main device Wiring the wire through the through hole and plugging the auxiliary device which can communicate with the main unit wirelessly to the wall outlet of the user's location, can easily go to the main unit, wherever voltage, current, leakage current, and contact failure , Power factor and the like can be easily understood by the display device.

The present invention can measure the voltage and current of the distribution panel by simply plugging the auxiliary device 30 into the wall outlet of the place where the user is currently working even if the user does not deliberately go to the distribution panel (1). Auxiliary device 30 which can communicate wirelessly with the main device 10 in a state where the wire from the wire passes through the wire passage hole 11 of the main device 10 is installed in an arbitrary place, and the main The RF receiver 35 of the auxiliary device 30 receives a signal transmitted wirelessly from the device 10 and is input through various input devices 29 of the main device 10. In addition, the state of the reverse phase and the like can be easily identified through the display unit 32 of the auxiliary device 30, as well as the alarm through the alarm buzzer 34 or the like.

Power, Record, Wireless, Indication, LED, Communication Port, Control Button, Leakage

Description

Electric power analysis recorder for electric safety check

1 is a view showing the overall configuration of a power analysis recorder according to the present invention,

2 is a view showing a built-in main device of an embodiment according to the present invention;

3 shows an external main device according to another embodiment of the present invention.

4 is a view showing the appearance of the auxiliary device according to the present invention;

5 is a block diagram of a main device according to the present invention;

6 is a block diagram of an auxiliary device according to the present invention;

7 is a view for explaining the leakage current measurement by the power analysis recorder according to the present invention.

<Explanation of symbols for main parts of drawing>

1: distribution panel 2: main circuit breaker

10: main unit 11: wire through hole

15: COM port 16: Control button

17: LED display unit 30: auxiliary device

The present invention relates to a power analysis recorder for the electrical safety check, and more particularly, to connect the electric wire from the output terminal of the current transformer and the current transformer installed in the main circuit breaker of the distribution panel to the main device or to pass through the wire through hole thereof, Plug the sub device that can communicate wirelessly with the main device into a wall outlet where the user can see easily, and easily grasp the voltage, current, leakage current, contact failure, power factor, etc. of the distribution panel without going to the main device. The present invention relates to a power analysis recorder for electrical safety check that can be easily used anywhere (A data wireless transmission and reception function) as an accident prevention device, accident cause analysis in case of an electric accident, and data can be used safely.

Conventionally, in order to measure the current, voltage or leakage current, power factor, reverse phase, etc. of the distribution panel while the main circuit breaker is installed in the distribution panel, the user must deliberately go to the place where the distribution panel is installed and check the input state, etc. It was inconvenient to analyze.

In addition, the conventional safety check for the use of electricity has been inspected by measuring the insulation resistance at the safety construction once a year, conventionally, there was no way that consumers of electricity use can check the safety of the current electricity use.

The present invention is to solve the conventional problems as described above, the object of the present invention, if the user simply plugs the auxiliary device capable of wireless communication in the wall outlet in the place where you are currently working without going to the distribution board such an auxiliary device By providing a power analysis recorder for the electrical safety inspection to easily grasp the current distribution panel voltage, current, leakage current, contact failure, power factor.

The present invention is to provide a power analysis recorder for the electrical safety inspection to check and manage the electrical safety in real time.

The present invention is to provide a power analysis recorder for the electrical safety check to accurately provide the electrical cause analysis data in the event of a fire.

The power analysis recorder according to the present invention for achieving the above object is connected to the output terminal wire of the current transformer (CT) and the image current transformer (ZCT) installed in the main circuit breaker of the distribution panel or the main wire is installed so as to pass through the wire through hole. And an auxiliary device installed at a wall outlet so as to communicate wirelessly with the main device.

In the power safety recorder for the electrical safety check according to the present invention, the main device is a battery built-in clock, environment setting storage unit, data storage unit, operation button, power supply unit for supplying power to each unit, input data from each unit A microprocessor that receives and performs a corresponding control, an LED display unit and a numeric display unit indicating a current state under the control of the microprocessor, a communication port controlled by the microprocessor, an RF transmitter, an alarm buzzer, various input devices, It characterized in that it comprises a personal PC and a small printer connected to the communication port.

In the power safety recorder for the electrical safety check according to the present invention, the auxiliary device includes a microprocessor, a display unit, an alarm buzzer, an RF receiver for performing a corresponding control by an operation button, a power supply unit, an input signal from the operation button. Characterized in that configured.

In the power safety recorder for the electrical safety check according to the present invention, the main device and the auxiliary device or their microprocessor is preferably provided with an explosion-proof structure that can withstand high temperature to protect and store the data stored therein in case of fire. .

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the power analysis recorder for electrical safety check according to the present invention will be described in detail.

1 is a view showing the overall schematic configuration of the power analysis recorder for electrical safety check according to the present invention. Here, the power analysis recorder is composed of a distribution board 1 having a main circuit breaker 2, a main device 10 and an auxiliary device 30, and an electric wire 3 from the main circuit breaker 2 of the distribution board 1. ) Is configured to pass through the main device 10, and the main device 10 and the auxiliary device 30 are configured to communicate wirelessly.

2 is a view showing the appearance of the built-in main device 10 as an embodiment in the power safety recorder for electrical safety check according to the present invention. Here, the main device 10 is fixed by the fixing bracket 19, the wire passing hole 11 through which the wire 3 can pass, the operating voltage input unit 12 into which the operating voltage is input, and the power factor is input. The power factor input unit 13, the reverse phase input unit 14 into which the reverse phase is input, the communication port 15 for the interface, the operation button 16 which can be operated by the user, and the current operation state can be displayed by the LED. LED display unit 17, and a display device 18 for displaying the current measurement value by a number or the like.

Figure 3 shows an external main device 10A of another embodiment in a power analysis recorder for electrical safety check according to the present invention. In the main device 10A, the wire passing hole 11 through which the output terminal wire 3 of the current transformer CT and the image current transformer ZCT passes through the built-in main device 10A is removed, and the main device 10A is removed. The CT input unit 13A and the ZCT input unit 13B for connecting the current transformer CT of the main circuit breaker 2 and the output terminal wire 3 of the image current transformer ZCT are further provided at 10A.

4 is a view showing the appearance of the auxiliary device 30 in the power analysis recorder for electrical safety check according to the present invention. In this case, the power is supplied when the power is supplied to the wall outlet, and the LED display 33, the numeric display 32, and the operation button 31 are provided on the surface.

5 is a block diagram showing the internal configuration of the main device 10 in the electrical safety check power analysis recorder according to the present invention.

Here, the battery 20 is built-in clock 20, the environment setting storage unit 21, the data storage unit 22, the operation button 16, the power supply unit 23 for supplying power to each part, and receives data from the respective parts The microprocessor 28 which performs the corresponding control, the LED display 17 and the numerical display 18 which show the current state by control of the microprocessor 28, and control by the microprocessor 28 Consisting of a communication port 15, an RF transmitter 24, an alarm buzzer 25, various input devices 29, a personal PC 26 connected to the communication port 15, and a small printer 27. .

Figure 6 is a block diagram showing the internal configuration of the auxiliary device 30 in the electrical safety check power analysis recorder according to the present invention.

Here, the operation button 31, the power supply unit 33, the microprocessor 36 for performing the corresponding control by the input signal from the operation button 31, the display unit 32, the alarm buzzer 34, the RF receiver It consists of 35.

The RF receiver 35 of the auxiliary device 30 is configured to receive a radio signal generated from the RF transmitter 24 of the main device 10.

In addition, the present invention can measure various inputs using only the main device 10, and can easily observe various inputs using the auxiliary device 30.

In addition, the main device 10 and 10A and the auxiliary device 30 or their microprocessors 28 and 36 may be provided in an explosion-proof structure that can withstand high temperatures to protect and store data stored therein.

In the electrical safety inspection power analyzer according to the present invention configured as described above, the main device 10 is attached to the main circuit breaker 2 in the distribution panel 1, and the main circuit breaker 2 of the distribution panel 1 exits. The electric wire 3 is wired so as to pass through the wire passing hole 11 of the main device 10. In addition, when the auxiliary device 30 is plugged into a wall outlet near the user, the auxiliary device 30 is automatically supplied with power from the outlet, and the auxiliary device 30 is operable.

That is, in the present invention, even if the user deliberately goes to the distribution panel 1 at the construction site and does not grasp the state, the voltage and current of the distribution panel can be measured by simply plugging the auxiliary device 30 into the wall outlet of the current working place.

In other words, the present invention relates to such a main device 10 in a state where the wires 3 drawn out from the main breaker 2 of the distribution panel 1 are routed through the wire through holes 11 of the main device 10. The auxiliary apparatus 30 which can communicate wirelessly is installed in an arbitrary place.

At this time, in the main device 10, the environment setting data is pre-stored in the environment setting storage unit 21, and other necessary data are stored in the data storage unit 22 to the power supplied from the power supply unit 23. This causes the microprocessor 28 to operate.

In addition, when voltage, current, leakage current, power factor, reverse phase, and the like are input through various input devices 29, the microprocessor 28 operates the LED (17) and the numeric display unit 18 for the present operation. The status is displayed by LED and numbers so that the user can easily grasp the current status and connect the personal PC 26 and the small printer 27 through the communication port 15 to read the necessary data. It also stores the data measured by time zone (set minute-time unit) in memory.

Under the control of the microprocessor 28, various input data currently input through the RF transmitter 24 are wirelessly transmitted for each time zone. Here, the clock 20 is installed in the main device 10 so that the current time can be easily known, and an alarm can be performed through the alarm buzzer 25.

On the other hand, the auxiliary device 30 installed in any place to communicate wirelessly with the main device 10 is operable by the operation button 31, the RF receiving unit ( When the data received by the 35 is input to the microprocessor 36, the microprocessor 36 indicates the current state through the display unit 32 and also warns through the alarm buzzer 34.

Hereinafter, the voltage and current measurement of the distribution panel 1 in the power safety recorder for electrical safety check according to the present invention will be described.

First, the voltage measuring method reads the input voltage (AC) from the operating voltage input unit 12 and converts the voltage to DC using an A / D converter to measure the voltage, and the measured voltage is displayed as a number through the display device 18. do.

In addition, in the current measuring method, when a current flows through a wire, a voltage is induced in the secondary through the transformer, and the magnitude of the voltage is proportional to the current, so that the current can be measured in the same manner as described above.

As shown in FIG. 7, the leakage current measuring method detects using ZCT (ZERO CURRENT TRANSFOMER). When the currents of L1 and L2 are the same, the induced voltage of L1 and the induced voltage of L2 are canceled to ZCT. If there is no output, but if L1 or L2 is short-circuited and the balance between L1 and L2 is broken, the output will be output to ZCT as much. Therefore, leakage current can be measured using this principle.

On the other hand, in the contact failure detection method, the signal detected by the CT (CURRENT TRANSFOMER) for the instrument is a sine wave and the magnitude of the voltage changes according to the amount of current.

However, if the contact is poor, the load fluctuation becomes severe and the amount of current varies irregularly according to the contact surface. Therefore, by determining the content of the noise in the current phase and the time-dependent variables, etc. comprehensively determines whether the contact failure.

In addition, the power factor is to calculate the power factor by reading the voltage phase and reading the current phase through CT to determine the phase difference, and may be input from an existing power factor meter.

That is, in the present invention, the main unit 10 is installed in the distribution panel 1, and the auxiliary unit 30 is installed to communicate wirelessly with the main unit 10, and the current distribution panel through the LED and the display device. The state of voltage, current, etc. of (1) can be grasped | ascertained easily.

As described above, the electric safety inspection recorder for electric safety check according to the present invention connects the wires from the output terminal of the current transformer and the current transformer installed in the main circuit breaker of the distribution panel to the main device or to pass through the wire through hole thereof. When the auxiliary device that can communicate with the main unit wirelessly is plugged into a wall outlet where the user can easily see, the user can deliberately go to the main unit from the work site, and the voltage, current, leakage current, poor contact, Power factor, etc. can be easily grasped in real time to prevent electrical accidents, analyze causes of accidents during electrical accidents, and use electrical safety.

Claims (4)

delete Main devices 10 and 10A installed through the current transformer CT installed in the main circuit breaker 2 of the distribution panel 1 and the wires 3 of the output terminal of the image current transformer ZCT, and the main devices 10 and 10A. In the electrical safety check power analysis recorder consisting of an auxiliary device 30 is connected to the wall outlet and installed in the wall outlet so as to communicate wirelessly with The main device (10, 10A) is a battery built-in clock 20, configuration storage unit 21, data storage unit 22, operation button 16, power supply unit 23 for supplying power to each part, A microprocessor 28 which receives data from the respective units and performs a corresponding control; an LED display unit 17 and a numeric display unit 18 indicating a current state by the control of the microprocessor 28; Communication port 15 controlled by processor 28, RF transmitter 24, alarm buzzer 25, various input devices 29, personal PC 26 and small printer connected to the communication port 15 (27) power analysis recorder for the electrical safety check, characterized in that configured including. delete delete

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