WO2022010003A1 - 다기능 무 감전 보호시스템 및 보호방법 - Google Patents
다기능 무 감전 보호시스템 및 보호방법 Download PDFInfo
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- WO2022010003A1 WO2022010003A1 PCT/KR2020/008779 KR2020008779W WO2022010003A1 WO 2022010003 A1 WO2022010003 A1 WO 2022010003A1 KR 2020008779 W KR2020008779 W KR 2020008779W WO 2022010003 A1 WO2022010003 A1 WO 2022010003A1
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- 230000004224 protection Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 23
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
- H02H3/105—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions responsive to excess current and fault current to earth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
Definitions
- the present invention relates to an electric leakage prevention device that prevents electric leakage due to leakage current.
- it is an alignment method that utilizes a wavelength band that occurs based on a potential phenomenon, such as an electric device exposed to various external environments. It relates to a multifunctional no-electric shock protection system and protection method that prevents electric shock due to shielding, absorption and reduction of leakage current by compensating for the frequency sine wave band of the applied power and blocking external surge.
- ground-type radio-protection device is disclosed, and this prior art is a first input terminal 110 in which the input terminal part 100 is electrically connected to any one of a phase voltage terminal and a neutral point terminal in a series manner, electrically It includes a second input terminal 120 connected to any one that is not connected and a ground terminal G connected to a ground terminal, and the terminal polarity fixing unit 200 is a switching unit 210 and a switching control unit 220 .
- the SMPS unit 230 and the power connection unit 240, and the output terminal unit 330 includes a first output terminal 310, a second output terminal 320, and a neutral output terminal 330, terminal polarity
- the fixing part 200 is disposed between the input terminal part 100 and the output terminal part 300, the first input terminal 110 and the second input terminal 120, the first output terminal 210 and the second output terminal ( 230) is electrically connected to each other, so that any one of the first output terminal 210 and the second output terminal 230 is electrically connected to the phase voltage terminal, and the neutral point output terminal 330 is electrically connected to the neutral point terminal
- the first output terminal 310, the second output terminal 320 and the neutral point so that the connection terminal part 400 is spaced apart from each other and electrically insulated while exposed on the upper surface of the body part and the body part made of an insulator.
- the vertical conductor part 510 and the vertical conductor part 510 that pass through the body part downward from the neutral point connection terminal 430 so as to be electrically connected to the terminal 430 and disposed around the connection terminal electrically connected to the phase voltage terminal. It is bent horizontally at the end and crosses the bottom of the body part.
- the bottom conductive part 520 extending out of the bottom, and the plate-shaped side conductive part bent upward from the end of the bottom conductive part 520 and extending to a height not lower than the upper surface of the connection terminal block while facing the side surface of the body part ( 530).
- the input terminals and output terminals are directly connected, so that the voltage and current capacity of the power line is not limited by the capacity of the switching unit, and the voltage and current capacity of the power input load are Since the same applies to the output terminal part, when the exposed terminals of an electric device are submerged, it reduces the leakage current flowing between the terminals to prevent electric shock, ensures the normal operation of the electric device, and protects the electric and electromagnetic waves generated from the outside. It is intended to reduce the exposure of the internal circuit of the electric device to electric and electromagnetic waves generated from the outside.
- the terminal polarity fixing part between the input terminal part and the output terminal part excites the relay coil of the switching part so as to safely apply the phase voltage to the load and has a power connection part to prevent short circuit
- the connection terminal part is composed of an insulator Consists of connecting terminals connected to a load spaced apart from each other in a body part to be insulated from each other, and the electric leakage prevention conductor part supports the connection terminals and faces the body part usually made of a steel plate or copper plate material; vertical, horizontal and side conductor parts is composed of
- the switching part that shields the electric force line and blocks leakage has a risk of malfunction against instantaneous high voltage and large current
- the earth leakage prevention conductor part that maintains only simple shielding of the electric field is the separation distance between the phase voltage terminal and the ground terminal and the neutral point terminal.
- the amount of leakage may increase proportionally according to the load capacity, and there is a disadvantage that it should be applied only to a small size.
- the simple shielding effect of the electric field of the prior art cannot absorb and shield more than a certain amount of leakage current, so that leakage current exists on the internal line of the system. It prevents malfunction of devices and detects an abnormal voltage applied on the circuit, detects and cuts off electric leakage when power is applied, enables stable power supply to the load even in flooded and humid areas, and prevents accidental It can be seen that it is very desirable to prevent electric shock due to short circuit.
- the main object of the present invention is to turn on the power to maintain the normal power application and ground state, and the electric device changes the frequency to a sinusoidal wave band without interference from various external environments and changes the amplitude to a constant external interference-free amplitude to electronically arrange the electric field lines so that the potential difference between the equipotentials
- the leakage current is collected and shielded, absorbed and reduced, and the ground fault current is shielded, absorbed and reduced to prevent electric shock and external surges.
- An object of the present invention is to provide a multifunctional non-electric shock protection system and protection method that detects an abnormal state to be applied and compensates for frequency.
- Another object of the present invention is to use modulation compensation control that compensates in the form of a frequency sine wave to shield leakage current of electric devices without external interference and significantly reduce system noise and electromagnetic waves to prevent malfunctions and component damage, and to prevent overvoltage
- the object of the present invention is to provide a multifunctional no-electric shock protection system and protection method that detects an abnormal state to be applied and compensates the frequency to trip the earth leakage breaker of the distribution board by recognizing it.
- Another object of the present invention is to avoid malfunctioning of absorption (disappearance) and interruption of electric field, detect and block leakage current on the circuit without a structure to shield leakage current over a certain level, and provide stable power supply for load even when submerged.
- An object of the present invention is to provide a multifunctional no-electric shock protection system and protection method that detects an abnormal state to be applied and compensates for frequency to enable authorization.
- a multi-function non-electric shock protection system for no electric shock includes a multi-function earth fault shielding unit for detecting an abnormal state of an applied power supply and performing earth fault current shielding and ground distribution;
- a filter is provided at the power terminal (L) and the neutral terminal (N) to shield, absorb (disappear) and reduce leakage current, the power supply supplying system power, and controlling each part of the system to output normal system power.
- the main control unit that controls to keep the current leakage within 5 mA under any circumstances. It is composed of a pulse width modulation control unit that receives and compensates by modulating the amplitude and frequency, and a polarity display unit that detects and displays the polarity error of the input power.
- the multifunctional ground fault shield has a power supply terminal (L) connected to a coil (CL) terminal 2 of a first relay composed of a first switch and a second switch, and a first diode, a first light emitting diode and a first resistor are connected to the terminal 1 in series connected, and a neutral terminal (N) is formed between the first resistor and the coil (CL) and is connected to the load terminal (E2) via the second resistor in common with the terminal 4 of the first switch and the terminal 8 of the second switch
- the terminal 3 of the first switch and the terminal 6 of the second switch are simultaneously connected to the rectifying terminal of the first bridge circuit, and first and second neon lamps arranged in parallel are installed at the output terminals of the first bridge circuit
- the terminal 3 of the first switch is connected to the load ground terminal (E1), and the third neon lamp and the third resistor are connected in series to the terminal 6 of the second switch and then connected to the ground terminal (FG). .
- the multifunctional ground fault shielding unit when normal power is applied, the first light emitting diode is turned on, the relay coil (CL) is excited, and the electric device (load) to be used is connected to the load terminal (E2) and the load ground terminal (E1) (not shown). ) is in a state where power is applied.
- the multi-function ground fault shield When a leakage current due to a ground fault occurs in the leakage detection terminal (EPG), the multi-function ground fault shield returns to the original position in which terminals 6 and 3 are connected to terminals 7 and 4 in the first and second switches, thereby reducing the leakage current to the first bridge circuit
- the first and second neon lamps connected in parallel to the output terminal are turned on by connecting to the rectifier terminal of Let the 10V voltage be recognized.
- the noise filter unit detects the overvoltage due to the ground fault at the ground fault terminal (G1) between the second and third capacitors connected to the output terminal 1d of the first coil by the main control unit, and the first and second relays of the first relay in the ground fault shielding unit By operating the switches, the leakage current is connected to the rectifying terminal of the first bridge circuit, the first and second neon lamps connected in parallel to the output terminal are turned on, and the third neon lamp is simultaneously turned on at the terminal 6 and applied to the third resistor. Drop the voltage below 10V.
- the abnormality detection unit first, second and third collecting units connected between the power line (L), the neutral line (N) and the ground line (FG), and first, second and third frequency compensation connected in parallel to each of them
- the first collecting unit is connected to the fourth neon lamp through the third power terminal (L3) and the fifth resistor to which power is input, and the output is connected to the pulse width modulation control unit through the neutral wire terminal (N3)
- the second collecting unit has an input terminal connected to the ground terminal (FG) of the fourth neon lamp, and an output terminal is connected to the pulse width modulator and a load ground terminal at the same time
- It is connected to the leak detection terminal (EPG) connected to (E1)
- the third collection unit has an input terminal connected to the neutral terminal (N4) and an output terminal connected to the pulse width modulation control unit, and at the same time as the ground terminal (FG) of the fourth neon lamp Since it is installed in a state in which it is commonly connected to and separated from the ground terminal (FG).
- the main control unit that modulates the voltage and receives this modulated signal sets the potential difference with the normal power source to “zero potential”, collects the leakage current generated by a ground fault from the surrounding electric devices and extinguishes it in the fourth neon lamp. shield it
- the first, second, and third frequency compensators are a conductor installed on a substrate, a high-conductivity mesh surrounding the conductor, and a strong net positioned in a state in which the bottom is in contact with the mesh and the conductor and is in contact with the center of the mesh. It is composed of magnetic cylindrical permanent magnets to attract leakage current, electromagnetic waves, and noise around it, and collects it by a flat plate coil and applies it to the pulse width modulator.
- the main control unit always induces the output of the power supply with the normal frequency.
- the leakage power from the ground fault detection terminal (G1) is connected to the leakage detection terminal (EPG) via the point (A), and the power from the power supply terminal (L) is via the output terminal 3 of the coil of the noise filter unit.
- the power terminal (L1) is connected to the point (C)
- the point (D) is connected to the second collection unit connected and at the same time connected to the ground side of the fourth neon lamp 55
- a fifth diode 71, a fourth light emitting diode, and a sixth resistor are connected in series between the points B and C
- the leakage current from the ground fault detection terminal (G1) is connected to the point (B) so that the fourth light emitting diode is turned on
- the normal power detection unit is connected to the point (B) so that the normal power is applied to the third bridge circuit and the fifth
- the light emitting diode indicates the application of normal power
- the overvoltage connected from the power terminal L1 to the point C is detected at the abnormal voltage detection terminal G2. to indicate abnormal voltage application.
- the multi-function no-electric shock protection method is to check the connection of power to the power terminal (L), neutral wire terminal (N) and ground terminal (FG) when the power is turned on, determine whether the normal polarity is applied, and when the normal power supply is confirmed, the system Control works, and if the connection is not in the normal polarity, check the grounding wire connection, and when power is applied to the neutral wire terminal (N) or the grounding terminal (FG), it is determined whether the other terminal is grounded, and the ground wire is not connected.
- the power polarity is changed and connected to control the operation of the sub-electric shock protection unit, and the non-electric shock protection unit detects a ground fault when the power is turned on and detects the leakage current of the electronic application device, and the first and second And check the leakage current of the third collection unit, determine the overvoltage application, and when the overvoltage application is detected, determine whether the voltage is 10V, 5mA or less, and if the voltage is 10V, 5mA or more, if the ground line is not connected, change the power polarity Connect and control the operation of the secondary electric shock protection unit.
- the main control unit switches to the "zero potential" operation monitoring function, then collects the leakage current in turn, switches to the overvoltage detection mode, and collects the noise to control the pulse width.
- the circuit breaker operates due to abnormal operation, and if it is normal operation, the circuit breaker is maintained.
- the present invention maintains normal power application and grounding state by supplying power, collects leakage current caused by exposure of applied electrical equipment to various external environments, shields ground fault current, prevents electric shock due to absorption and reduction, and blocks external surge and realizes no electric shock by recognizing the occurrence of overvoltage and tripping the earth leakage breaker of the distribution board.
- FIG. 1 is a block diagram of a prior art ground-type radio protection device
- FIG. 2 is a block diagram of a multi-function non-electric shock protection system having a multi-function earth fault shielding unit and a multi-function non-electric shock protection unit according to the present invention
- FIG. 3 is a detailed circuit diagram of a multi-function earth fault shield according to the present invention.
- 4A and 4B are detailed circuit diagrams of a noise filter unit and a polarity display unit, respectively;
- Figure 4c is a front view and a perspective view showing the configuration of the floating part
- Figure 5 is a flow chart showing the operation of the multi-function earth fault shielding unit according to the present invention and the procedure of the system control operation of the multi-function non-electric shock protection unit.
- the multifunctional electric shock-free protection system and protection method of the present invention are described in a paper "A Method of Reducing Disturbances in Radio by a system of frequency modulation” published by Edwin Howard Armstrong in 1936. Signaling by a System of Frequency Modulation)" was applied by applying the frequency modulation theory.
- a "modulation compensation control device with a frequency sine wave band” is implemented using a wavelength band based on potential phenomena such as between phases (single-phase, three-phase), as shown in the explanatory diagram (1) of the frequency modulation compensation principle Similarly, by compensating the frequency with a sine wave band, the frequency is changed to a constant amplitude without external interference, and the electric field lines are arranged electronically so that there is no potential difference.
- noise and electromagnetic waves are removed by keeping the amplitude constant without external interference by the frequency compensation signal while changing the frequency according to the electric signal in a series of constant amplitudes, and the influence of the surroundings by making the amplitude constant
- the noise is removed by adjusting the amplitude to a constant again even when receiving .
- the multi-functional non-electric shock protection system for no electric shock shields, absorbs (disappears) and reduces leakage current with the multi-function earth fault shielding unit 10 that performs earth fault current shielding and ground distribution. It is composed of a multifunctional electric shock protection unit 90 to prevent an electric shock accident and to prevent an external surge to prevent the occurrence of overvoltage.
- the multi-function earth fault shielding unit 10 and the multi-function non-electric shock protection unit 90 are commonly connected to the external input terminals of the same three-phase input, that is, the same power R phase, neutral N phase, and ground G phase, and complement each other to provide non-electric shock protection operation. carry out
- the multi-function ground fault shielding unit 10 has a power terminal (L) connected to the coil (CL) terminal 2 of the relay (1) as shown in FIG. 3 and a first diode (2), a first light emitting diode (3) to the terminal 1 ) and the first resistor (4) are connected in series.
- a neutral terminal N is formed between the first resistor 4 and the coil CL.
- the relay 1 is composed of a first switch DY1 and a second switch DY2, and has a second resistor 5 in common with a terminal 4 of the first switch DY1 and a terminal 8 of the second switch DY2.
- the first switch DY1 has a terminal 3 connected to the ground terminal E1.
- the second switch DY2 connects the third neon lamp 8 and the third resistor 9 in series to a terminal 6 thereof, and then connects to the ground terminal FG, and at the same time is connected to the leak detection terminal EPG.
- this multifunctional ground fault shielding unit 10 when normal power is applied, the first light emitting diode 3 is turned on, the relay coil CL is excited, and the first and second switches DY1 and DY2 are switched and the relay (CL) Connecting terminals 6 and 3 to terminals 4 and 8, respectively, connected to the load terminal (E2) and the load grounding terminal (E1) to apply power to the load to be used, that is, an electric device (not shown) becomes
- the multi-function ground fault shielding unit 10 If the multi-function ground fault shielding unit 10 generates a leakage current due to a ground fault in the leakage detection terminal (EPG), the first and second switches (DY1) and (DY2) through the fourth resistor (12) to the terminal 6 and first and second neon lamps 6 and 7 connected in parallel to the output terminal by connecting the leakage current to the rectifying terminal of the first bridge circuit 11 in the in-situ state where 3 is connected to the terminals 7 and 5.
- the non-electric shock protection unit 90 first briefly describes the configuration. As shown in FIG. 2, the power terminal (L) and the neutral wire terminal (N) have a noise filter unit 20 for shielding, absorbing and reducing leakage current, and a system power supply.
- the power supply unit 40 which controls each part of the system to output the normal power of the system
- the control unit 50 which controls to keep the current leakage within 5mA in any situation, the leakage current when an abnormal output of the control unit 50 is detected and an abnormal current detection unit 50 that collects noise currents and collects them as power to be used
- a pulse width modulation control unit 60 that receives power from the abnormal current detection unit 50 and modulates amplitude and frequency to compensate
- the polarity of the input power It is composed of polarity display units 70 that detect and display an error.
- the noise filter unit 20 is composed of a filter 21 as shown in FIG. 4A , a power terminal (L) is connected to the filter terminal 2, and a terminal 4 is connected to a neutral terminal (N), and at the same time
- the filter terminal 2 is connected to the neutral terminal (N) via the first capacitor (22).
- the filter output terminal 1 is connected to the fourth neon lamp 55 via the fifth resistor 54 of the abnormal current detection unit 50 to be described later, and simultaneously connects the second and third capacitors 23 and 24 It is connected to the polarity display unit 70 and the neutral wire terminal (N) via.
- the noise filter unit 20 not only removes the ripple noise of the power supply voltage of each phase, but also reduces the leakage current caused by the occurrence of the ground fault, the ground fault detection terminal G1 in the middle of the second and third capacitors 23 and 24. ) and leads to the neutral terminal (N), so that the ground fault voltage applied to the main control unit 40 is applied to less than 10 volts from the zero potential phenomenon due to “zero potential”.
- the main control unit 40 detects the overvoltage due to the ground fault at the ground fault terminal G1 between the second capacitor 23 and the third capacitor 24, and the The first and second neon lamps connected in parallel to the output terminal by operating the first switch DY1 and the second switch DY2 of the relay 1 to connect the leakage current to the rectifying terminal of the first bridge circuit 11 (6) and (7) are turned on, and the third neon lamp (8) is turned on at the terminal 6 at the same time and applied to the third resistor (9) to induce a voltage drop of 10V or less.
- the power supply unit 30 is configured to apply power to the main control unit 40 and the pulse width control unit 60, and a power supply terminal L2 and a ground terminal ( FG)
- the neutral wire terminal N2 for the function is connected as will be described later, and the middle terminals are connected to the fifth resistor 32 and the second light emitting diode 33 .
- the third light emitting diode 33 is turned on.
- the sixth diode 37 is connected in the reverse direction to the seventh resistor 35 and the seventh light emitting diode 36 between the power terminal L1 and the neutral terminal N1, and the neutral terminal N ), when abnormal power is applied, the seventh light emitting diode 36 is turned on.
- the abnormality detection unit 50 is composed of first, second and third collecting units 51, 52 and 53, which are characteristic of the present invention, as will be described later.
- the first, second and third collecting units 51, 52 and 53 are, respectively, in the drawings for convenience, the first coil CL1, the first parallel capacitor C1, the second coil CL2 and the second coil CL2. It is composed of two parallel capacitors C2 and a third coil CL3 and a third parallel capacitor C3.
- the first collecting unit 51 has a power input connected to the third power terminal L3 and an output connected to the pulse width modulation control unit 60 via a neutral terminal N3. Also, the first collecting unit 51 is connected to the fourth neon lamp 55 via the fifth resistor 54 .
- the second collecting unit 52 has an input terminal connected to the ground terminal FG of the fourth neon lamp 55 via a fifth resistor 54 and an output terminal connected to the pulse width modulation control unit 60 while detecting leakage. It is connected to the terminal (EPG).
- the third collecting unit 53 has an input terminal connected to the neutral terminal N4 and an output terminal connected to the pulse width modulation control unit 60 , and is connected in common to the ground terminal FG of the fourth neon lamp 55 , and the fourth The diode 59 is in a state of being separated from the ground terminal FG of the fourth neon lamp 55 .
- first, second and third collecting units 51, 52 and 53 are described later in detail in their structure, and each of them is a power line (L), a neutral line (N) and a ground line (FG). ) and the voltage leaking to the ground wire, for example, in the case of 220V power, collect 0 ⁇ 10V and current 0 ⁇ 500mA and keep it within 5mA.
- the pulse width modulation control unit 60 recognizes the leakage voltage current and converts the voltage frequency into a power supply voltage with a constant amplitude by performing pulse width modulation compensation for each phase as shown in FIG. 1 . this
- the main control unit 40 sets the potential difference of the normal power source to “zero potential”, collects leakage current from nearby electric devices and leakage current generated by a ground fault by itself, extinguishes it in the fourth neon lamp 55, and shields it do.
- the first, second and third collecting units (51, 52, 53) are each in parallel, when the amount of leakage current is insufficient, when the leakage current is leaked to the power terminal and the neutral wire terminal, the first, The second and third frequency compensators (56, 57, 58) are provided to absorb the leakage current, that is, electromagnetic waves, and noise around the magnetic field as shown in Fig. Since it is applied to the width modulator 60, the frequency and each phase are precisely modulated to make the phase difference "zero potential", so that the main controller 40 always induces the output of power having a normal frequency.
- the first, second and third frequency compensators 56, 57, 58 are a conductor 41 installed on a substrate as shown in FIG. 4C, a high conductivity mesh 42 surrounding the conductor, and the mesh network. It is composed of a cylindrical permanent magnet 43 of a strong magnetic material placed in a state in which the bottom is in contact with the conductor and the center of the mesh 42 is in contact.
- the abnormality detection unit 50 blocks various noises coming into the line between the frequency band of 150KHz to 1GHz from the system in advance, and makes the main control unit 40 recognize the external signal on the line so that it does not enter the basic line.
- the main control unit 40 recognizes the external signal on the line so that it does not enter the basic line.
- the polarity display unit 70 is connected to the leakage ground terminal (EPG) via the point (A) of the leakage power from the ground fault detection terminal (G1) as shown in FIG. 4B, and the power supply from the power terminal (L) is the noise filter unit It is connected to the input terminal of the second collecting unit 52 via the point B and the point D via the output terminal 3 of the coil 21 of (20).
- the power terminal L1 is connected to the point C and the point D is connected to the third collecting unit 53 and at the same time connected to the ground side of the fourth neon lamp 55 .
- the fifth diode 71, the fourth light emitting diode 75, and the seventh resistor 73 are connected in series between the point B and the point C, and the leakage current from the leakage terminal G1 is
- the fourth light emitting diode 72 is turned on by being connected to the point B.
- the normal power detection unit 61 is connected to the point B.
- the normal power detection unit 61 includes a third bridge circuit 62, and the third bridge circuit 62 has an input terminal connected to the power terminal L1 via a point B so that normal power is applied, and an output terminal
- the sixth light emitting diode 63 and the sixth capacitor 64 are connected in parallel to the sixth resistor 65 .
- the fifth light emitting diode 63 represents the application of normal power.
- the output terminal of the sixth resistor (73) is the diode 74, the sixth light emitting diode (75) and the eighth resistor (76) connected in series. through the abnormal voltage detection terminal G2.
- First and second voltage-dropping diodes 77 and 78 are oriented in opposite directions to the abnormal voltage detection terminal G2 and are connected to the ground terminal FG of the fourth neon lamp 55, and at the same time, the ninth It is connected to the leak detection terminal (EPG) via the resistor (79). Therefore, when overvoltage or reverse voltage is applied, the sixth light emitting diode 75 is turned on to indicate abnormal power application.
- the multi-function non-electric shock protection method checks whether the power supply is normal or abnormal when the power is turned on, and the operation of the system is described as follows.
- step S1 power is supplied to the power terminal (L), the neutral wire terminal (N) and the ground terminal (FG) of the distribution panel power source R-phase, N-phase, or T-phase power, not shown.
- step S2 the connection of power to the power terminal (L), the neutral terminal (N) and the ground terminal (FG) is checked.
- step S3 it is determined whether the normal polarity is applied, and when it is confirmed that the normal power is applied, the process moves to step S10 to perform a system control operation. If the connection is not of the normal polarity, proceed to step S5 to check the connection of the ground wire. That is, when power is applied to the neutral terminal (N) or the ground terminal (FG), it is determined whether the other terminal is grounded. If the grounding is not made, the process proceeds to step S6 to confirm that the fourth light emitting diode 72 is turned on.
- step S6 If the ground line is not connected in step S5 or the fourth light emitting diode 72 is turned on in step S6, the power polarity is changed in step S7 to connect, and then to step S10, the non-electric shock protection unit 90 ) to control the operation.
- step (S11) the ground fault current is sensed, the electronic application device leakage current is sensed, the leakage current is sensed when the power is turned on, and the leakage current of the first, second and third collection units is checked, and the step (S12) 1 voltage, 2 temperature, 3 leakage amount, and 4 arc voltage are displayed on the self-display unit (not shown).
- step S13 it is determined whether the overvoltage is applied. If the overvoltage application is detected, the process proceeds to step S4. Otherwise, the flow advances to step S14 to determine whether the leaked voltage is 10V and the current is 5mA or less.
- step S14 if the leakage current voltage current is 10V and 5mA or more, respectively, it moves to step S5, and if the leakage current voltage current is 10V and 5mA or less, respectively, it moves to step S16 and operates as the main controller "zero potential" Switch to monitoring function.
- steps S16, S17, and S18 the leakage current is sequentially collected and switched to the arc detection mode, and electromagnetic noise is collected and applied to the pulse width control unit 60 .
- step S19 it is determined whether the operation is normal, and if not, the circuit breaker of the distribution panel is operated as an abnormal operation in step S20, and the operation state is maintained by moving to step S21.
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- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (8)
- 다기능 무 감전 보호 시스템에 있어서,지락전류 차폐 및 접지 분배를 수행하는 다기능 지락 차폐부와;전원 단자(L)과 중성선 단자(N)에는 누설전류 차폐, 흡수(소멸) 및 감소시키는 노이즈 필터부; 시스템 전원을 공급하는 전원부, 시스템의 각부를 제어하여 시스템 정상 전원을 출력하도록 전류 누설량을 소정의 값 이내로 유지시키도록 제어하는 주 제어부, 주 제어부의 이상 출력을 감지한 경우 누설 전류 및 노이즈 전류들을 포집하여 사용 전원으로 포집하는 이상전류 감지부, 이상전류 감지부로부터 전원을 수신하여 진폭 및 주파수 변조하여 보상하는 펄스 폭 변조 제어부와 입력 전원의 극성 오류를 감지하여 표시하는 극성 표시부들로 구성되어 누설전류를 차폐, 흡수(소멸) 및 감소로 인한 감전사고를 예방하고 외 서지를 방지하여 과전압 발생을 방지하도록 하는 다기능 무 감전 보호부들로 구성한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 1에 있어서,다기능 지락 차폐부는 전원 단자(L)가 제 1 스위치와 제 2 스위치로 구성되는 릴레이의 코일(CL) 단자 2에 연결되고 단자 1에 제 1 다이오드, 제 1 발광다이오드와 제 1 저항이 직렬 연결되어 있고 제 1 저항과 코일(CL) 사이에 중성선 단자(N)가 형성되고, 제 1 스위치의 단자 4와 제 2 스위치의 단자 8이 공통으로 제 2 저항을 경유하여 부하단자(E2)에 연결되며, 제 1 스위치의 단자 3 및 제 2 스위치의 단자 6이 동시에 브리지 회로의 정류 단자에 연결되고, 브리지 회로의 출력 단자들에는 병렬로 정렬되는 제 1 및 제 2 네온램프들이 설치되며, 제 1 스위치 단자 5 및 제 2 스위치 단자 7이 누설 감지단자(EPG)에 연결되고, 제 2 스위치가 단자 6가 제 3 네온램프와 제 3 저항을 직렬로 연결한 다음 접지단자(FG)로 연결한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 1항 또는 2항에 있어서,다기능 지락 차폐부는 정상전원이 인가되면 제 1 발광다이오드가 점등되고 릴레이코일(CL)이 여자되어 부하단자(E2)와 부하 접지단자(E1)에 연결되어 사용하고자 하는 전기응용부하에 전원을 인가한 상태에서 누설 감지단자(EPG)에 지락에 의한 누설전류가 발생하면 제 1 및 제 2 스위치들에서 단자 6 및 3이 단자 7 및 4 에 연결되는 원위치 상태로 되어 누설 전류를 제 1 브리지 회로의 정류단자에 접속시켜 출력단자에 병렬 접속된 제 1 및 제 2 네온램프들을 점등하고 동시에 단자 6 에 제 3 네온램프를 점등하고 제 3 저항에 인가하여 전압 강하와 동시에 다기능 무 부하 제어부가 소정의 범위 내의 전압을 인식되게 한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 1에 있어서,노이즈 필터부는 지락으로 인한 과전압을 주 제어부가 제 2 콘덴서 및 제 3 콘덴서 사이의 지락 단자(G2)에서 검출하여 지락 차폐부에서 릴레이의 제 1 및 제 2 스위치들을 작동시켜 누설 전류를 제 1 브리지 회로의 정류단자에 접속시켜 출력단자에 병렬 접속된 제 1 및 제 2 네온램프를 점등하고 동시에 단자 6에 제 3 네온램프를 점등하고 제 3 저항에 인가하여 소정의 값 이하의 전압 강하한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 1에 있어서,이상 감지부는 전원선(L), 중성선(N)과 접지선(FG)들 사이에 연결한 제 1 , 제 2 및 제 3 포집부들과 이들 각각에 병렬로 연결된 제 1, 제 2 및 제 3 보상부들을 구비하며, 제 1 포집부는 전원 입력이 제 3 전원 단자(L3)와 연결되고 그 출력이 중성선 단자(N3)를 경유하여 펄스 폭 변조 제어부에 연결과 동시에 제 5 저항을 경유하여 제 4 네온램프에 연결되며, 제 2 포집부는 입력단이 제 4 네온램프의 접지단자(FG)에 연결되며 출력단이 펄스 폭 변조 제어부에 연결되는 동시에 누설 감지단자(EPG)에 연결되고, 제 3 포집부는 입력단이 중성선 단자(N4)에 연결되고 출력단이 펄스 폭 변조 제어부에 연결되는 동시에 제 4 네온램프의 접지단자(FG)에 공통 연결되며 다이오드에 의하여 제 4 네온램프의 접지 단자(FG)와 분리되는 상태로 설치하여, 누설 전압 전류를 펄스 폭 변조 제어부가 인식하고 전압 주파수를 펄스 폭 변조 보상하여 일정한 진폭의 전원 전압으로 변환하고 주 제어부가 정상 전원과의 전위차를 "영전위화"로 하고 주변의 사용되는 전기기기로부터 지락으로 발생하는 누설전류를 자체적으로 포집하고 제 4 네온 램프에서 소멸(흡수)시키고 차폐하게 한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 5에 있어서,제 1, 제 2 및 제 3 보상부들은 기판상에 설치되는 도체, 이 도체를 감싸는 높은 전도성을 갖는 그물망과 이 그물망과 도체 상에 바닥이 접촉되고 그물망의 중심에 접촉되는 상태로 위치시킨 강력한 자성체의 원통형 영구자석들로 구성하여 주변에 누설전류, 노이즈를 흡인하고 평판 코일에 의하여 포집하여 펄스 폭 변조부에 인가하므로 주파수 및 각 위상을 정밀하게 변조하여 위상차를 "영전위화"로 하므로 항상 정상 주파수를 가진 전원을 주 제어부가 출력을 유도하는 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 청구항 1에 있어서,극성 표시부는 지락 검출단자(G1)로부터 누설 전원이 지점(A)를 경유하여 누설 감지단자(EPG)에 접속되고, 전원단자(L)로 부터 전원이 노이즈 필터부의 코일의 출력 단자 3을 경유하여 지점(B)와 제 3 포집부를 경유하여 접지단자(FG)로 연결되며, 전원단자(L1)가 지점(C)에 연결되며, 지점(D)는 제 2 포집부에 연결되고 동시에 제 4 네온램프의 접지부 측에 연결되고, 지점(B)와 지점(C)사이에는 제 5 다이오드, 제 4 발광다이오드와 제 6 저항들이 직렬로 접속되며, 누설단자(G1)로부터 누설전류가 지점(B)에 접속되어서 제 4 발광다이오드가 점등되게 하고, 지점(B)에는 정상 전원 감지부를 연결시켜 제 3 브리지 회로에 정상 전원이 인가하여 제 5 발광다이오드는 정상전원의 인가를 표시하며, 전원단자(L1)로부터 지점(C)에 연결되는 이상 전압이 이상 전압 감지단(G2)에서 감지되게 하여 과전압이거나 역전압이 인가되면 제 5 발광다이오드가 점등하여 이상 전압 인가를 표시하게 한 것을 특징으로 하는 다기능 무 감전 보호시스템.
- 다기능 무감전 보호방법에 있어서,전원이 투입되면, 전원단자(L), 중성선 단자(N)와 접지단자(FG)에 전원의 연결을 확인하고, 정상 극성 인가를 판단하고 정상적인 전원이 인가가 확인되면 시스템 제어작동을 하며,만일 정상 극성의 접속이 아니면 접지선 연결을 확인하고, 중성선 단자(N)거나 접지단자(FG)에 전원이 인가되면 또 다른 단자에 접지가 이루어졌는지를 판단하며, 접지선 연결이 되지 않아 제 5 발광 다이오드가 점등되면 전원 극성을 변경하여 연결하여 부 감전 보호부의 작동 제어를 수행하며,무 감전 보호부가 전원 투입시 지락을 감지하고 전기장치의 누설전류를 감지하며, 제 1, 제 2 및 제 3 포집부의 누설전류를 확인하고 과전압 인가를 판단하며,과전압 인가가 감지되면 소정의 값의 전압, 소정의 값의 전류 이하인가를 판단하며, 소정의 값의 전압, 소정의 값의 전류 이상이면 접지선 연결이 되지 않은 경우 전원 극성을 변경하여 연결하고 부 감전 보호부의 작동 제어를 하도록 하고,소정의 값의 전압, 소정의 값의 전류 이하이면 주 제어부 "영전위화" 작동 감시기능으로 전환 후 차례로 누설전류를 포집하고 아크 감지 모드로 전환하며 노이즈를 포집하여 펄스 폭 제어부에 인가하고,정상 작동인가를 판단하여 정상작동이 아니면 비정상 작동으로 분전반의 차단기를 작동시키고, 정상작동이면 운전 상태를 유지하게 한 것을 특징으로 하는 다기능 무 감전 보호방법.
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PCT/KR2020/008779 WO2022010003A1 (ko) | 2020-07-06 | 2020-07-06 | 다기능 무 감전 보호시스템 및 보호방법 |
CN202080102882.6A CN115769453A (zh) | 2020-07-06 | 2020-07-06 | 多功能无触电保护系统及保护方法 |
BR112023000261A BR112023000261A2 (pt) | 2020-07-06 | 2020-07-06 | Sistema e método multifuncional de proteção contra choque não elétrico |
US18/014,036 US20230335984A1 (en) | 2020-07-06 | 2020-07-06 | Multi-function non-electric shock protection system and method thereof |
JP2023501427A JP2023541504A (ja) | 2020-07-06 | 2020-07-06 | 多機能無感電保護システム及びその方法 |
CA3188572A CA3188572A1 (en) | 2020-07-06 | 2020-07-06 | Multi-function non-electric shock protection system and method thereof |
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JP2008096106A (ja) * | 2006-10-05 | 2008-04-24 | Max Co Ltd | 接地線接続監視装置及び電気機器 |
KR101016780B1 (ko) * | 2010-03-18 | 2011-02-25 | (주)예네 | 직류전압 누전차단기 |
KR20110123965A (ko) * | 2010-05-10 | 2011-11-16 | 정태영 | 전기 선로 및 부하의 이상 상황을 감지하는 전원 차단 장치 |
KR20130061607A (ko) * | 2011-12-01 | 2013-06-11 | 이에스에스 주식회사 | 감전사고방지용 누전차단장치 |
KR101969922B1 (ko) * | 2018-08-28 | 2019-04-17 | 주식회사 이텍코리아 | 순간지락정전보호 및 누전경보 기능이 있는 누전차단기 |
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- 2020-07-06 US US18/014,036 patent/US20230335984A1/en active Pending
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- 2020-07-06 CA CA3188572A patent/CA3188572A1/en active Pending
- 2020-07-06 WO PCT/KR2020/008779 patent/WO2022010003A1/ko active Application Filing
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JP2008096106A (ja) * | 2006-10-05 | 2008-04-24 | Max Co Ltd | 接地線接続監視装置及び電気機器 |
KR101016780B1 (ko) * | 2010-03-18 | 2011-02-25 | (주)예네 | 직류전압 누전차단기 |
KR20110123965A (ko) * | 2010-05-10 | 2011-11-16 | 정태영 | 전기 선로 및 부하의 이상 상황을 감지하는 전원 차단 장치 |
KR20130061607A (ko) * | 2011-12-01 | 2013-06-11 | 이에스에스 주식회사 | 감전사고방지용 누전차단장치 |
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CA3188572A1 (en) | 2022-01-13 |
BR112023000261A2 (pt) | 2023-01-31 |
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