KR20090002667U - Electric leakage circuit breaker with automatic calling apparatus - Google Patents

Abstract

The present invention relates to an earth leakage circuit breaker and discloses an earth leakage circuit breaker having an automatic notification device for minimizing damage caused by an interruption of installation equipment when the power supply is interrupted due to an earth leakage or lightning strike.

The present invention relates to an earth leakage breaker having an automatic notification device for automatically calling a manager of a predetermined facility when the earth leakage breaker is operated due to a short circuit or a lightning strike and using a stored voice or a predetermined signal means. More specifically, a handle for cutting off or returning the power supply to the load by manipulation of a knob in general, a sensing part for detecting a leakage current or an overcurrent to cut off the flow of current, and generating an instantaneous electromagnetic force when a current is applied to the handle. Drive pins moving forward or backward by the electromagnetic force of the solenoids and solenoids, and intermediate gears that rotate the handle to the return state in conjunction with the rotation of the latch gear and the latch gear that rotates through the shaft pin as the drive pins move forward or backward. In the known earth leakage breaker made of, after A central control unit for controlling each unit, a power failure detection unit for detecting whether the earth leakage breaker operates to cut off the power supply, an alarm unit operating when the supply power is cut off, a hook-on-off unit for connecting the telephone line, and notifying the administrator The voice synthesis recording and reproducing unit, which stores voice data, and a public switched telephone network (PSTN) module including a DTMF transmitter and receiver and a ring detector for automatic notification using a general telephone connected to a trunk line, and a mobile phone. It is provided with a communication module composed of a CDMA module for use selectively.

The present invention, when the power outage detection unit detects that the power supply is interrupted due to a short circuit or lightning strike, the control unit generates a simple alarm sound through the alarm unit in normal times, and in the case of a night or a holiday, if the administrator is absent the communication module When a user selects one of a number of preset and stored phone numbers to make a call and connects to the receiver, the receiver generates a stored voice signal indicating that the power supply is interrupted due to the breaker's operation. The control can then take the necessary action or go directly to the site to eliminate the cause of the breaker and resume power supply.

Accordingly, the present invention can be quickly responded by the automatic notification device when the power supply is interrupted due to a short circuit or lightning strike, so that even if the power supply is interrupted for a while, additional damage will be inevitable. There is a useful effect that can be minimized.

Earth Leakage Breaker, Automatic Notification Device, Voice Synthesis, DTMF

Description

ELECTRIC LEAKAGE CIRCUIT BREAKER WITH AUTOMATIC CALLING APPARATUS}

The present invention generates an alarm sound when an earth leakage breaker operates in an earth leakage breaker that automatically cuts off the power supply in order to prevent electrical damage, defects or human injury caused by electric shock due to a short circuit or lightning. When the administrator is absent, such as at night or on a holiday, the communication module is operated to select one of a plurality of stored phone numbers in advance and dial it. This will generate a stored voice signal indicating that the power supply has been interrupted, and the receiver can immediately operate the remote control by immediately pressing the button on the phone to take the necessary action through the remote control or go directly to the site to eliminate the cause of the breaker and resume the power supply promptly. So that it can run using electricity It relates to a circuit breaker having an automatic notification system to minimize the damage that this could cause major facilities.

As is well known, a ground fault interruption and automatic recovery type earth fault detection device which detects a ground fault in such a ground fault detection device, shuts off the power supply, and resumes the power supply when the ground fault is terminated. -0382085 (the name of the design: the automatic return device of the intelligent earth leakage breaker; referred to as "quoting design") has been filed, which is shown in FIG.

As shown therein, the 'quoting draft' includes a voltage supply unit 2 for distributing the voltage supplied through the earth leakage breaker 1 to each unit; A voltage detector (3) for detecting whether a voltage is output from the voltage supply (2); A charging circuit unit (4) for charging the storage battery (5) by rectifying the AC voltage supplied through the voltage supply unit (2) to a DC voltage in a normal operation of the earth leakage breaker (1); A battery 5 which is normally charged by the voltage output from the charging circuit unit 4 and supplies a driving voltage to each part when the earth leakage breaker 1 trips; An overload detector 6 for determining an abnormal state of various loads by detecting an overcurrent; A control unit (7) for generating a driving or non-driven signal to the actuator driver (8) in response to the state of the overload detector (6) when the non-voltage detection signal is input from the voltage detector (3); An actuator driver (8) for driving the actuator (9) by a predetermined number of revolutions in response to an output signal of the controller (7); It is an automatic return device of an intelligent earth leakage breaker, comprising an actuator (9) that is rotated by a predetermined angle in response to the output signal of the actuator driver (8), and then turns on the earth leakage breaker (1). .

This invention is equipped with an automatic return means there is no hassle to manually return even if the leakage occurs due to a short circuit, and if the cause of the removal is not removed, the return operation is not made to prevent damage to the earth leakage breaker reliability Although there is an effect of guaranteeing the quality, if the administrator does not recognize that the power supply is cut off temporarily or for a long time, there is a problem that a huge damage is caused to the facility by failing to take appropriate measures.

The purpose of the present invention is to solve the problems described above, the leakage circuit breaker is installed in the facility using the electricity is automatically cut off due to short circuit, lightning, overload, etc. Unlike the case of the interruption, if the interruption state continues due to a short circuit or an overload, the facilities may be severely damaged due to the interruption of the power supply. When the administrator is absent, such as at night or on a holiday, the operator operates the communication module to make a phone call to a pre-stored phone number and connects to the receiver to generate a stored voice signal indicating that the power supply is interrupted by the breaker. And the receiver can adjust the And to provide an immediate one go so that you can take the necessary actions through a remote control or directly to the scene to remove the causes of work-breaker equipped with an automatic notification system to minimize the damage and resume the power supply circuit breaker.

In order to achieve the above object, the present invention provides a central control unit for controlling each unit to be described later, an electrostatic breaker detecting a power interruption by operating an earth leakage breaker, an alarm unit operating when the supply power is cut off, and a connection for a telephone line. Hook on. Public switched telephone network (PSTN), which includes the OFF unit, a voice synthesis recording and reproducing unit storing voice data for notifying the administrator, a DTMF transmitter and receiver unit and a ring detector for automatic notification using a landline connected to a trunk line. And a communication module comprising a module for a method and a module for a CDMA method for selectively using a mobile phone.

Accordingly, the present invention can accurately recognize the state of the power supply cut off or return due to a short circuit or a lightning strike at a long distance by an automatic notification device, so that the user can quickly deal with damage caused by interruption of the power supply. It is possible to prevent and have a useful effect to prevent the damage that can occur in the secondary.

This invention is described with reference to the accompanying drawings as follows.

2 to 3 is a block diagram showing the configuration of an earth leakage breaker having an automatic notification device of the present invention. As shown therein, the current transformer 303 is provided in the lines 301 and 302 on the power supply side so as to detect a current difference between the two lines 301 and 302 while the power is being supplied to detect a short circuit condition. The leakage current detection unit 304 for determining the leakage current by comparing the current value detected by the current transformer 303 with a preset current value, and the blocking actuator for cutting the lines 301 and 302 connected to the load 305 side in the case of the leakage current 306, a shut-off actuator drive unit 307 for driving the same, a power supply unit 308 for supplying power to the entire circuit by reducing and rectifying the power applied from the lines 301 and 302 to an appropriate voltage, Auxiliary power supply unit 309 for continuously supplying power even when the lines 301 and 302 are shut off, a recovery actuator 310 for restoring the blocked lines 301 and 302, and a recovery actuator 310 Recovery Actuator for According to the known one provided with a control unit 312 for controlling the overall operation of the driving unit 311, a circuit,

The rectifier 313 is connected to a telephone line of a public switched telephone network (PSTN) system by a jack (not shown) to rectify power flowing through the telephone line to a DC power source, and a telephone line to receive a ringing tone from an external incoming call. When the short circuit is detected by the ring detecting unit 314 and the ground fault detecting unit 304, one end is connected to the rectifying unit 313, and the other end is connected by the control unit 312 and the control signal S3. The PSTN communication module 316 composed of a hook on / off switching unit 315 for off hook for automatic notification by dialing the stored telephone number in 312), and a circuit breaker operate to supply power. Direct connection with the control unit 312 so that a plurality of phone numbers, including those of the facility manager, can be input into the memory built in the control unit 312 to automatically notify when the service is stopped. The phone number input unit 317 and the control unit 312 to turn on the hook on / off switching unit 315 (hook) when the hook off state is connected to the telephone line to enable a call connection between the circuit breaker and the receiver The speech network unit 318 and a voice for transmitting the operating state of the ground fault breaker to the receiver are recorded in advance, and when one side of the ground fault breaker is activated, one side of the control unit 312 reproduces the corresponding voice by calling a stored telephone number. And the other end is connected to the speech network unit 318 and the voice synthesis recording and reproducing unit 319 for selectively outputting the voice recorded by the control signal, and the circuit breaker operates to automatically call the receiver. In order to receive a button signal from a telephone when a remote control is performed by an administrator or the like from outside, It is connected to the pitch network unit 318 to receive and decompose the button signal of the phone, the other side is connected to the control unit 312 DTMF receiver 320 for applying the decoding signal to the control unit 312, one side is the control unit 312 And the other side is connected to the speech network unit 318 and the DTMF oscillator 321 for generating and outputting a DTMF signal for selectively making a call among a plurality of telephone numbers stored by the control signal when the ground fault breaker is operated. One end is connected to the control unit 312 and the other end is connected to a buzzer (not shown), and when an earth leakage breaker is operated, an alarm sound is generated to generate and output an alarm sound so that an administrator at a short distance can immediately recognize by a control signal. It is provided with a part 322.

4 shows a configuration of another embodiment of the CDMA communication system for automatic notification in an earth leakage breaker equipped with such an automatic notification device.

As shown therein, an antenna 401 for receiving or transmitting a CDMA signal, and one end thereof is connected to the antenna 401, and a CDMA receiver 403 for detecting and amplifying a weak signal received through the antenna 401. And one end is connected to the CDMA receiver 403, the other end is connected to the control unit 312 Bell signal detection unit 402 for detecting a bell signal, and one end is connected to the antenna 401 to receive a button signal or voice signal CDMA transmitter 404 for modulation and transmission on the transmission frequency and transmitted through antenna 401, one end of which is connected to CDMA receiver 403 and CDMA transmitter 404, the other end of which is connected to speech network unit 318. It is provided with a communication module 316 of the CDMA method consisting of an on / off switching unit 405 for turning on or off when making or receiving a call by the control signal of the control unit 312.

Looking at the working state of the present invention as follows.

Normally, the power supply unit 308 is connected to the lines 301 and 302 to receive AC power and to supply a predetermined voltage drop and rectification to the circuits of the respective units. The power supply 308 is temporarily used when the AC power is not supplied. In order to supply a charging current to the auxiliary power supply unit 309, which is generally a charger. The power supply side is connected to the load 305 side with the contact 300 turned on, and is supplying power to the load 305 side, and is connected to the lines 301 and 302 by the current transformer 303 provided in the lines 301 and 302. The induced voltage, which varies according to the magnitude of the current flowing through the circuit, is detected by the ground fault detecting unit 304 and applied to the controller 312, and the controller 312 determines that the ground fault or overload is compared with the preset current value. If it is detected differently from the set current and is determined to be a short circuit or an overload, it generates and outputs a blocking signal S1 for immediately blocking the contact 300 for safety of the load 305 side. As such, when the control unit 312 outputs the cutoff signal S1 for blocking the contact 300, the cutoff actuator driver 307, which is a switching element, operates to operate the cutoff actuator 306. ) Turns off the on-contact state, which cuts off the power supply. In addition, when a mis-strip is generated by the surge or the insulation resistance detector 322 due to surge or brain impulse, the control unit 312 generates and outputs a recovery signal S2 to restore power. As such, when the control unit 312 outputs the recovery signal S2 for connecting the contact 300, the recovery actuator driver 311 including the switching element operates to operate using the charged power of the auxiliary power supply unit 309. The recovery actuator 310 is operated, thereby restoring the open contact 300 to the connected state.

In addition, when the ground fault detector 304 detects a ground fault and outputs the cutoff signal S1, the controller 312 may measure an insulation resistance value between the lines 301 and 302 and the ground through the mist strip and the insulation resistance detector 322. In this case, the insulation resistance value is detected as an example. If a resistance value of 0.2 megohm or less is detected, the short circuit condition is continued. Therefore, the recovery signal S2 is not output. It is determined that it is not in the state to output the recovery signal (S2) to operate the recovery actuator driver 311, thereby connected to the auxiliary power supply unit 309 is driven by the recovery actuator 310 operated by the charged power is cut off The contacts 301 and 302 are connected to restore power, so that power can be supplied to the load 305.

As described above, the circuit breaker automatically shuts down and recovers due to a short circuit or overload, and at the same time, automatically connects to a telephone line, dials a pre-stored phone number, and outputs a voice signal for automatic notification. same.

As described above, the power supply side is detected by the current leak detection unit 304 by the current transformer 303 while the contact point 300 is turned on and connected to the load 305 side to supply power to the load 305 side. The voltage is applied to the control unit 312, and when it is determined that the short circuit or overload, the control unit 312 generates and outputs a blocking signal S1 for immediately blocking the contact 300 for the safety of the load 305 side. At the same time, the control signal S3 is output to operate the hook on / off switching unit 315 to connect the circuit breaker with the telephone line to be in the off hook state. The off-hook state of the telephone line is a state in which the ringer does not actually hear the dial tone but is in a state in which it is being received, and is in a state capable of making a call, and one of a plurality of telephone numbers stored in the internal memory of the controller 312 is set by a predetermined priority. Select to start dialing.

Here, the plurality of stored phone numbers are stored in advance by using the phone number input unit 317 composed of the same number plate as the normal phone button connected to the control unit 312, and the data code D1 output from the control unit 312. The DTMF oscillator 321 generates and outputs a DTMF (Dual Tone Multi Frequency) signal sent to the telephone station, and is amplified to a sufficient size in the speech network 318 so that the hook on / off switching unit 315 and the rectifier 313 can be used. Will be put on the PSTN telephone line to make a call.

In this way, when the administrator makes a handset and the receiver picks up the telephone, the telephone line between the breaker and the administrator's phone becomes a loopable state, from which the administrator enters a predetermined password to receive approval and then activates the breaker. You can hear the status by voice, and you can also remotely control the breaker by pressing any designated button to activate a specific function.

When the manager receives the call and then presses a password or a specific button, the breaker recognizes the button signal. The DTMF button signal generated and output from the manager's phone is outputted from the rectifier 313 and the hook on / off switch 315. Is input to the speech network unit 318 and amplified to an appropriate magnitude and applied to the DTMF receiver 320.

The DTMF receiver 320 applies the data code D2 generated by decoding it to the controller 312, and the controller 312 is designated in the same manner as when inputting a telephone number, and is compared with the number stored in the memory. If the breaker will output the corresponding voice according to the operation status of the breaker, if a number for remote control is input from the administrator, it will be able to operate accordingly.

In addition, in the process of recording and outputting voice, the voice synthesis recording and playback unit 319 operates a button not shown to record and store the voice for notifying the operation state of the circuit breaker, and the playback signal P1 in the control unit 312. ) Will play the recorded voice. The audio output reproduced by outputting the reproduction signal P1 from the control unit 312 is amplified to a sufficient size in the speech network unit 318 and loaded onto the telephone line through the hook on / off switching unit 315 and the rectifier 313. It can be notified to.

On the other hand, when the manager of the facility makes a call from the outside, the breaker detects the state of operation and shows the current generated by the ring signal when the call is made by the ring detector 314 directly connected to the telephone line. It is applied to the control unit 312 through a rectifier circuit and a photo coupling, and then detects it and outputs a control signal S3 as described above to operate the hook on / off switching unit 315 to connect the breaker to the telephone line. The off-hook state.

Thereafter, the manager presses a button of the phone to remotely control or output a voice signal according to the state of the circuit breaker as described above.

1 is a conventional block diagram

2 is a block diagram according to the present invention

Figure 3 is a block diagram showing another embodiment according to the present invention

* Description of the symbols for the main parts of the drawings *

301, 302: track 303: current transformer

304: Earth leakage detector 306: Shut off actuator

308: power supply 309: auxiliary power supply

310: recovery actuator 312: control unit

316: communication module 317: telephone number input unit

318: speech network unit 319: voice synthesis recording and playback unit

320: DTMF receiver 321: DTMF oscillator

322: alarm sound generating unit

Claims (3)

Current transformer 303 provided on the lines 301 and 302, a ground fault detection unit 304, a shutoff actuator 306 for blocking the lines 301 and 302, a power supply unit 308, and an auxiliary power supply unit 309. In the well-known thing which has a repair actuator 310 for restoring the tracks 301 and 302, and the control part 312 for controlling an operation | movement, A communication module 316 connected to a telephone line for automatic notification, a telephone number input unit 317 directly connected to the control unit 312, a speech network unit 318 enabling call connection, and recording and playing back voices And a voice synthesis recording and reproducing unit (319), a DTMF receiving unit (320), a DTMF oscillating unit (321), and an alarm sound generating unit (322). The method according to claim 1, The above-described communication module 316 is connected to a telephone line of a public switched telephone network (PSTN) type, and comprises a rectifier 313, a ring detector 314, and a hook on / off switching unit 315. Earth leakage breaker with automatic notification device. The method according to claim 1, The above-described communication module 316 includes an antenna 401 for receiving or transmitting a CDMA signal, a CDMA receiver 403, a bell signal detector 402, a CDMA transmitter 404, and an on / off switching unit. A circuit breaker having an automatic notification device, characterized in that the CDMA system consisting of (405).

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