KR200285754Y1 - Intelligent earth leakage breaker controller - Google Patents

Abstract

The present invention relates to an intelligent power recovery device, a magnetic switch (1) to turn the power on / off when the power supply, a lightning protector (2) and a DC power supply to protect against lightning and abnormal power conditions generated from the input power And a down transformer 3 for supplying power to the control unit, a power stabilizer 4 for stably supplying power, a signal safety amplifier 5, a load current detector 6, and a ground fault detector ( 7), the main control unit 13 for detecting, programming and controlling abnormalities of each unit, the main power control unit 8 for controlling the magnet power supply according to the instructions of the main control unit 13, and the application according to the usage environment. Limit selection switch 14 for controlling the power supply, a display unit 15 for grasping the number of power failures and abnormal faults, and displaying load current, and for turning on / off the power, manual and automatic ON / OFF for easy operation from the front. Input and output of the operation unit 16 and the power supply Is a 10, a emergency recovery unit 9 and the external power source 11, 12, intelligent power, characterized by consisting of a self-healing device.

Description

Intelligent earth leakage breaker controller

The present invention relates to an intelligent power automatic recovery device, and in detail, it checks a short circuit or overload condition, detects an input abnormal voltage, and automatically restores power when interrupted by a short circuit, overload or lightning. In this case, the present invention relates to an intelligent power recovery device that displays the power failure state, thereby eliminating the inconvenience of connecting a power supply to a person, and saves time and work for identifying a power failure.

In general, a power circuit breaker is installed in a place and a different place when power is supplied from a place to another place, and the circuit breaker turns on the power to flow a current where no current flows. It is similar to a switch that serves to cut off the power supply to prevent the current from flowing in the current.

The power circuit breaker is composed of a power circuit breaker movable contact that allows or prevents the flow of current, an interlock controlling the power circuit breaker operating contact, a coil, a power source and a signal part, and a part that controls the movable contact and the movable contact. have.

Korean Utility Model Publication No. 1999-0040071 provides a power supply with a means for automatically checking whether there is an abnormality in the line to be powered before supplying power and closing the breaker's movable contact when there is no error. Power breaker equipped with a track abnormality check device is described.

Patent Publication No. 0112067 describes a power supply control device which prevents a malfunction by detecting whether a fan motor is driven by an electronic component such as a microwave oven and judging the use of the microwave oven.

Conventional technologies as described above have had a lot of inconvenience in checking whether there is an abnormality in a line when power is supplied, and a problem that requires a lot of manpower.

The present invention was devised to solve the above problems, and when the earth leakage breaker (ELB) is down for some reason in a state where there is no abnormality in the current power supply, the phase power and load can be Considering the environment, it is possible to set up the arbitrary auxiliary control according to the situation without unduly affecting the load used by the continuous recovery operation. It overcomes the limitation of the main control device by using the microcomputer and increases the processing speed and accuracy from the command system. By reducing the mutual isolation of AC and DC,

By adding a protection circuit to protect the unit from instantaneous high voltages caused by lightning and abnormal voltages, and by installing lamps and switches on the front panel in a flat manner, for operator convenience and by-pass recovery switch (BY PASS) And it is a technical task of the present invention to provide an intelligent power supply automatic recovery device that minimizes the equipment and shortens the service interruption by installing and configuring an external outlet.

1 is an internal configuration of the automatic power recovery device of the present invention

Figure 2 is a front panel configuration of the automatic power recovery device of the present invention

Figure 3 is a circuit diagram of an automatic power recovery device of the present invention

4 is a flow chart of the present invention

5 is an example of driving operation of a timer of a control circuit;

<Signs of Main Parts Drawings>

Magnetic switch (1), lightning protector (2), down transformer (3), power stabilizer (4), signal safety amplifier (5), load current detector (6), earth leakage detector (7), main power controller (8) ), Emergency recovery section (9), input / output section (10), outlet power switch (11), outlet (12), main control section (13), limit selection switch (14), display section (15), operation section (16) , Power input display (21), power output display (22), device operation and timer display (23), alarm and fault OFF display (24), load current check display (25), START button (26), STOP button (27), load current view button (28), fault display return button (29), load current and fault count display (30)

In order to achieve the above object, the present invention is a magnetic switch (1) for turning on / off the power when the power supply, and a lightning protector (2) and DC power supply to protect against lightning and abnormal power conditions generated from the input power And a down transformer 3 for supplying power to the control unit, a power stabilizer 4 for stably supplying power, a signal safety amplifier 5, a load current detector 6, and a ground fault detector ( 7), a main controller 13 for sensing and controlling a signal input from each device, a main power controller 8 for controlling the magnet power according to the instructions of the main controller 13, and a use environment. Limit selection switch 14 to be applied accordingly, a display unit 15 for grasping the number of power failures and abnormal faults, and displaying load current, and on / off display of power for manual operation on the front, manual and automatic on / off The operation unit 16 and the power input / output unit 1 0), an emergency recovery unit 9, and an external power supply unit 11, 12, characterized in that the intelligent power automatic recovery device.

In the present invention, the magnetic switch 1 is directly controlled by the phototriac of the main power control unit 8, and a spark sketcher is installed to prevent a circuit error caused by alternating current and surge, and the main control unit 13 is programmed using a microcomputer. The signal detected by using the coat lance (CT) of the load current detection unit 6 is classified into 256 steps (multi-steps) by the main control unit 13 to digitize to increase the accuracy, and to display the load current and the number of failures. It is an apparatus shown in (30).

The various switches and lamp functions and indications installed on the front panel are shown in the table below.

division function Display IN Lights up when entering phase green OUT Lit in normal operation of ELB green START Lights up for automatic and manual recovery green Blinks during recovery preparation after alarm occurrence green STOP On when alarm is generated and manual shutoff Red CUR.SET Lights up when checking current yellow Current display on the numeric panel in normal operation FND blinks COUNTER Number of faults due to power cut, short circuit and over current FND lights up RESET Numeric plate "OO" return ON for 3 seconds in normal operation FND lights up BY PASS Emergency Recovery from ELB Disorder ON, OFF CONCENT Other Meters Used Power NFB ON, OFF TERMINAL Phase input, output terminal Terminals

In general, the magnetic switch (1) operates by connecting a phase power supply (AC 220V) to the input, and the input and output lamps of the power input display (21) and the power output display (22) turn on as outputs. After the normal circuit is configured, press the Stop button (27) to cut the output and connect the load. Then, press the Start button (26) to apply power to the load. And press the view button 28 to display the "number" to recognize the current use load, turn the control switch on the front control section to adjust the recovery interval, frequency, current value according to the local.

At this time, when the load is changed, the load current and the view button 28 are pressed to indicate the "number" value to cope with the load change, and the reset of the number of trips is performed by pressing the fault display return button 29 for 3 seconds to "00". To use it.

Hereinafter, described based on the accompanying drawings of the present invention.

1 is an internal configuration of the automatic power recovery device of the present invention, Figure 2 is a front panel configuration of the automatic power recovery device of the present invention, Figure 3 is a circuit configuration of the automatic power recovery device of the present invention, Figure 4 is an operation of the present invention Fig. 5 shows an example of the driving operation of the timer of the control circuit. The magnetic switch 1, the lightning protector 2, the down transformer 3, the power stabilizer 4, and the signal safety amplifier 5 ), Load current detection unit 6, earth leakage detection unit 7, main power control unit 8, emergency recovery unit 9, input / output unit 10, outlet power switch 11, outlet 12, main control unit ( 13), the limit select switch 14, the display unit 15, the operation unit 16, the power input display 21, the power output display 22, the operation and timer display unit 23 of the device, alarm and fault OFF display unit ( 24) shows the load current check display section 25, the START button 26, the STOP button 27, the load current view button 28, the fault display return button 29, and the load current and fault count display 30. It can be seen that.

Fig. 1 relates to the main external input, output, power supply, and control unit, and Fig. 3 is a schematic block diagram in which the intelligent automatic power recovery unit is operated.

1 and 3, a power supply step of connecting power to an input / output unit 10 to which power is supplied, and a magnetic switch 1 connected to the input / output unit 10; The abnormality of the phase power is detected through the down transformer 3 and the stabilization rectifier 4, and the leakage current is detected by the ground fault detection unit 7 to the load side, and the abnormality of the load currently used by the load current detection unit 6 is detected. A detection step of detecting the presence or absence;

According to the control selection switch 14 of the control unit in response to the signal determined in the detection step, the main power supply control unit 8 is operated by the command of the main control unit 13 to turn the power on / off and the magnetic switch 1 It is an intelligent power recovery device consisting of the steps of connecting and disconnecting.

FIG. 3 is a block diagram of the apparatus. When the circuit is described, power input through the input / output unit 10 is detected by the apparatus, and signals by the load current detector 6 and the earth leakage detector 7 are controlled. As determined by the unit 13, the main power supply control unit 8 supplies power to the load through the magnetic switch 1.

Figure 2 is to monitor and operate the operation of Figure 1 from the outside, when the combination of Figure 2 and Figure 3 to find the operation and operation state, the power input display 21 when the power source is connected to the input and output unit 10 ) When the lamp is turned on and the down transformer (3) and the power stabilizer (4) check the normal operation of the power supply, when the earth leakage detector (7) and the load current detector (6) are normal, the output power indicator (22) lamp turns on and the device The green lamp on the operation and timer display (23) of the normal operation is displayed. The limit of the current to the load at this time is made in the limit select switch 14.

4 shows a command system in which the control of the device of the present invention is performed, and FIG. 5 shows a timing at which the device of the present invention is operated.

The operation and the operation state will be described in detail as follows.

-Manual ON / OFF operation in normal operation

If the STOP button 27 is pressed while the operation and timer indicators 23 are on, the alarm and fault OFF indications 24 indicated by the main control unit 13 are displayed in red and the load is turned OFF. do.

Manual alternating motion test is performed using the START button (26) and the STOP button (27).

-When abnormal voltage and lightning strikes

The power input to the input / output unit 10 is protected against high voltage through the lightning protector 2, and when judged to be abnormal by the down transformer 3 and the power stabilizer 4, according to the instruction of the main control unit 13 The phase power source is cut off by the magnetic switch 1 by the main power source control unit 8.

-When leakage or overload occurs

The signal detected by the ground fault detecting unit 7 and the load current detecting unit 6 is judged by the signal safety amplifier 5 and the magnetic power switch 8 is operated by the main power control unit 8 according to the command of the main control unit 13. 1) is blocked.

Auto recovery

When the green lamp flashes on the alarm and fault OFF display unit 24 together with the red lamp on the fault caused by momentary power failure, lightning, overload, or short circuit, the main control unit 13 At the time of the auxiliary instruction of the limit select switch 14, recovery is attempted in consideration of a predetermined interval, recovery attempt count, and set current limit value.

The restoring operation of the main control unit 13 by the limit selector switch 14 is performed within the cut-off speed and determines the ON / OFF state detection during that time.

Manual recovery

When the red lamp is turned on in the alarm and fault OFF display section 24 and the green lamp flashes in the operation and timer display section 23, the START button 26 is pressed to attempt a forced recovery.

-Operating current monitor

When the intelligent automatic power recovery unit operates by a normal load, when the load current view button 28 is pressed, a yellow lamp is turned on in the load current check display unit 25 and a number is displayed on the load current and fault count display unit 30. Flashes.

-Error count display and return

In case of failure of power supply due to power failure, short circuit, or overload load due to overload, the load current and the number of failures are displayed by adding the number to the display unit 30 and turned on. Hold for more than a second to reset.

The control circuit determines that the main controller 13 operates as a program under the control of the limit select switch 14 and that a condition that is not suitable for the input and the load occurs when a condition other than the limit occurs. 13) Restoration order is not made.

In the above, the magnetic switch 1 may be used instead of the relay.

The present invention as described above allows to set up an arbitrary auxiliary control according to the situation in order to recover when the earth leakage breaker (ELB) is down, and overcome the limitations of the main control device using the microcomputer, the processing speed and Increases accuracy, reduces the probability of self failure by mutually isolating AC and DC, and adds protection circuitry to protect the device from instantaneous high voltages caused by lightning and overvoltages. To improve convenience and install emergency recovery BY PASS switch and external outlet, and construct an integrated type to eliminate the inconvenience of connecting people to any power source and identify the abnormality of power. And the effect is to save time.

Claims (1)

In the intelligent power automatic recovery device, there is a magnetic switch (1) to turn the power ON / OFF when the power supply, and the magnetic switch (1) connected to the inside to protect against lightning and abnormal power state generated from the input power A lightning protection device (2), a down transformer (3) for supplying power to a DC power supply unit and a control unit, a power stabilizer (4) connected to the down transformer (3) and stably supplying power; The signal safety amplifier 5, the load current detector 6, and the earth leakage detector 7 connected to the power stabilizer 4 and the magnetic switch 1, the signal safety amplifier 5, and the load current detector ( 6), the main control unit 13 for controlling signals input from the devices of the ground fault detecting unit 7 and the power stabilization unit 4, and the main control unit 13 is connected to the main control unit 13 Main power control unit 8 for controlling the power of the magnetic switch 1 according to the instruction of), the limit selection switch 14 for application according to the use environment, and the outside of the device. A display unit 15 for grasping and displaying a load current, and an operation unit 16 provided on the display unit 15 for turning on / off the power, manually and automatically turning on / off the power for convenient operation from the front, It consists of an input / output unit 10, an emergency recovery unit 9, and external power supply units 11, 12 of the power source, The magnetic switch (1) is directly controlled by the phototriac of the main power supply control unit (8), the spark skeleton is installed to prevent the circuit error due to alternating current and surge, and the main control unit (13) is designed by programming using a microcomputer The signal detected using the coat lance of the load current detector 6 is multi-digital in the main control unit 13 to increase accuracy and to appear on the load current and fault count display unit 30. Intelligent power automatic recovery device.