KR101168257B1 - moving breaking contact unit of moldedcase circuit breaker having EMFA - Google Patents

Abstract

The present invention is equipped with an electromagnet actuator which is equipped with an electromagnet actuator and a manual shutoff function connected to the side of the actuator so that the breaker does not operate due to a UPS or an internal or external problem inside the switchboard. An electronic wiring circuit breaker, comprising: a circuit breaker main body consisting of a plurality of phase single pole blocking units and a top of the circuit breaker body while being fixedly coupled to an upper portion of any one of the plurality of phase single pole blocking units. An actuator that generates or maximizes electromagnetic force to trip or inject contacts of the single-pole blocking units of each phase, and is configured to correspond to the circuit breaker main body to drive and control the actuator, and the single-pole blocking of each phase. Can be connected to the contact point of the unit To block it characterized in that the configuration comprises a manual shut-off that is configured at one side of the radar control actuators.

Description

Moving breaker contact unit of molded case circuit breaker having EMFA

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic mold case circuit breaker (MCCB). In particular, the UPS (Uninterruptible Power Supply) inside the switchgear and an electromagnet actuator that can be artificially blocked when the breaker does not operate due to internal and external problems. It relates to an onboard electronic circuit breaker.

In general, wiring breakers are mainly installed in switchboards in factories, buildings, etc., and act as a switchgear that supplies or cuts power to the load side under no load, and an abnormal phenomenon occurs in the load circuit during load use. When a large current exceeding the current flows, it acts as a breaker to automatically cut off the power supply from the power supply to the load to protect the wires and load-side equipment in the converter.

The circuit breaker includes a detection mechanism part, an opening / closing mechanism part, a arc extinguishing device part, a trip device part, and the like in a cover and a case forming an enclosure, and cut off the power by a trip operation when an abnormal current occurs.

The trip device unit detects an overcurrent flowing in the circuit breaker, and according to a method of tripping the circuit breaker, the bending characteristics of the bimetal and the viscosity of the thermal electronic type and the silicone oil using the fixed and movable cores There are largely three types, such as full electronic using and electronic using semiconductor devices.

For reference, a trip refers to an operation of automatically detecting a fault current in the breaker itself and automatically shutting off power when an abnormal current occurs in the circuit breaker.

Hereinafter, the process of tripping the circuit breaker in the event of a short circuit accident will be briefly described as follows.

First, when a short-circuit current is energized in the circuit, the short-circuit current is detected by the detection mechanism of the device, and then the opening / closing mechanism is operated to open the contact. At this time, an arc of high temperature and high pressure is generated when the contact is opened, and the generated arc is automatically extinguished by the extinguishing device unit in the apparatus. Thereafter, the recovery voltage is applied to restore the converter to the normal state.

In addition, the circuit breaker may be equipped with a variety of accessories provided separately if necessary to add convenience of control and use of the breaker.

Hereinafter, an electronic circuit breaker according to the related art will be described with reference to the accompanying drawings.

1 to 2 are perspective views showing the structure of a circuit breaker for electronic wiring according to the prior art, Figure 3 is a perspective view showing a modified form of the connection pin as a circuit breaker for the electronic wiring according to the prior art.

As shown in FIGS. 1 to 3, the electronic circuit breaker according to the prior art has a case 20 forming an enclosure of the single-pole breaking units 10a to 10d, and terminal portions 31 and 32 connecting the power supply side and the load side. And an opening / closing mechanism 50 that provides a driving force for opening and closing the contact of the contactor (the fixed contactor 41 and the movable contactor 42), and the abnormal current such as an overcurrent or instantaneous current or a short circuit current and an accidental current on the power supply side. The trip part (not shown) for detecting the trigger and triggering the opening / closing mechanism 50 to be operated when generated, and the extinguishing part 60 for extinguishing the arc generated between the contacts during the blocking operation (4) It consists of single pole blocking units 10a-10d of R, S, T, N.

The movable contact 42 is integrally connected to the shaft 53 rotatably installed in the case 20, and is configured to selectively contact the fixed contact 41 as the shaft 53 is rotated. .

The terminal parts 31 and 32 are connected to the power supply side and the load side to the respective poles to connect the external converter and the internal device, and the extinguishing part 60 is connected to the movable contact 42 and the fixed contact 41. It is responsible for protecting contacts and internal devices by quickly extinguishing arcs generated during opening.

The opening and closing mechanism 50 includes an upper lower link (not shown) connected to the handle 51, a trip spring (not shown), a latch, and the like, and each of the single pole blocking units 10a to 10d. Rotation drive pins 52 which commonly drive rotation of each shaft (see reference numeral 53 in Fig. 2) are included.

The electronic circuit breaker according to the related art configured as described above rotates in a clockwise direction when the opening / closing mechanism 50 operates in a trip position due to an accidental current such as an overcurrent or a short circuit current in an on state. The shaft 53 connected by the rotation driving pin 52 is rotated in the clockwise direction, and the contact is opened by moving the movable contact 42 from the fixed contact 41.

By the way, in the conventional circuit breaker for multi-pole (4-pole) electronic wiring, due to its structural characteristics, the shaft 53 of the pole-by-pole (phase) single pole blocking unit 10a, 10b, 10c, 10d by the rotation driving pin 52 is used. ) Rotates the single pole blocking unit 10d away from the opening / closing mechanism 50 of the rotary drive pin 52 for simultaneously rotating the shafts 53 when the shaft 53 is rotated. There was a problem in that deformation occurred, such as bending of a portion for rotating the single pole blocking unit 10d far from the opening and closing mechanism 50, and thus, the performance and reliability of the circuit breaker were deteriorated.

That is, as the opening and closing mechanism 50 is not installed at the center of the breaker and is installed so as to be deflected to one side (of the four single pole blocking units 10a, 10b, 10c, and 10d), the S phase single pole corresponding to the second right side in FIG. As installed in the blocking unit 10b), the rotation moment transmitted to the shaft of the N-phase single pole blocking unit 10d among the single pole blocking units 10a, 10b, 10c, and 10d by the opening / closing mechanism 50 is the other phase of the single pole. There was a problem in that the portion of the rotation driving pin 52 which is driven to the shaft of the N-phase single pole blocking unit 10d of the rotation driving pin 52 is larger than the rotation moment transmitted to the shafts of the blocking units 10a, 10b, and 10c.

N-phase single-pole blocking unit (b) as the portion of the rotary drive pin 52 which is driven and connected to the neutral pole (so-called N-pole or N-phase) single pole blocking unit 10d relatively far from the opening / closing mechanism 50 ( There was a problem that the reliability of the contact opening and closing operation in the single-pole blocking units 10a, 10b, 10c, and 10d, including 10d), was not guaranteed.

In addition, while the trip (open) operation of the conventional MCCB is automatically performed, there is an inconvenience in that the closing operation is required to return to the original state by directly operating the lever by manpower. In order to solve this inconvenience, a technique for attaching an accessory such as a motor operator to the MCCB has been commercialized so that the trip and the input can be controlled remotely.

However, there are limitations in this technology, as well as the burden on the economy and size of attaching the remote control motor device, as well as the complicated and many components, the frequent failure of the motor device raises the issue of its stability.

In addition, due to UPS and internal and external problems inside the switchgear, if the breaker does not operate, it could not be artificially shut off.

The present invention has been made to solve the conventional problems as described above, and equipped with an electromagnet actuator and a passive shutoff function to be connected to the side of the actuator to prevent the breaker from operating due to UPS and internal and external problems inside the switchgear. It is an object of the present invention to provide an electronic circuit breaker equipped with an electromagnet actuator that can be artificially blocked if not.

In addition, another object of the present invention is to provide a circuit breaker for an electronic wiring equipped with an electromagnet actuator that can be remotely controlled by miniaturizing, maximizing a blocking function, and providing a communication function.

Electronic circuit breaker equipped with an electromagnet actuator according to the present invention for achieving the above object is a circuit breaker body consisting of a plurality of phase single-pole blocking unit, and the upper portion of any one of the plurality of phase single-pole blocking unit An actuator coupled to an upper portion of the circuit breaker main body and coupled to an upper portion of the circuit breaker body to generate an electromagnetic force with a maximum holding force, so as to trip or inject contact points of the single-pole blocking units of each phase, and correspond to the circuit breaker main body to drive the actuator. And an actuator control unit for controlling, and a manual blocking unit configured to be connected to the contact unit of the single-pole blocking unit of each phase to manually block the contact unit.

The electromagnetic wiring breaker equipped with the electromagnet actuator according to the present invention has the following effects.

First, it completely blocks the arc from the arc explosion of the mover contact terminal due to the arc action of the contact from an overload short or a ground fault, which completely blocks the contact pressure balancing operation device, in which the movable contact rotor maintains the initial pressure. To improve the inherent performance of the breaker.

Second, it is possible to prevent the secondary arc explosion due to the secondary contact between the fixed contact point and the movable contact due to the suction force of the electromagnetic force with a structure that is opened in two stages from the momentary pressure of the arc.

Third, the pressure balancing operation device composed of independent positioning structure of front and rear contact part by bi-directional contact structure method. It solves fine contact energization state by securing contact life and contact reliability. It is possible to prevent the scattering of the contacts burned by the arc.

Fourth, by designing a pressure guide rail structure that maintains the pressure of the load-side arc load and the load-side arc load through the arc independent space to push out the arc at the same time, it is possible to maximize the efficiency in the short circuit.

Fifth, it is equipped with an electromagnet actuator and a manual shutoff function is connected to the side of the actuator to artificially shut off the breaker if the breaker does not work due to a UPS or an internal or external problem inside the switchgear.

Sixth, by applying Fleming's law of external damage, it drives the current to the space where the magnetic field is formed at right angles and drives it with the principle of gaining power to the mover. It can be manufactured in miniaturization and low cost while greatly improving.

Seventhly, it enables bi-directional communication to measure various power parameters such as voltage, current, power, and leakage current, so that the status monitoring of load can be operated all the time, reducing operating and maintenance costs and improving efficiency by optimizing equipment operation. The total power consumption can be reduced.

1 to 2 is a perspective view showing the structure of a circuit breaker for electronic wiring according to the prior art
3 is a perspective view showing a modified form of a connection pin of the electronic circuit breaker according to the prior art.
4A and 4B are perspective views showing the appearance of an electronic wiring breaker equipped with an electromagnet actuator according to the present invention.
5A and 5B are side views of FIGS. 4A and 4B
6 is a top perspective view of FIGS. 4A and 4B;
7 is a side perspective view of FIGS. 5A and 5B
8 is a perspective view showing the arrangement of the EMFA fixed on the single-pole blocking unit of FIG.
9 is a configuration diagram showing the configuration of the interior of the single-pole blocking unit of FIG.
Figure 10a is a top view showing the fixed mounting of Figure 8
Figure 10b is a side view showing the fixed mounting of Figure 8
10c is a front view showing the fixing mount of FIG.
11A and 11B are schematic cross-sectional views showing simulation results of magnetic field distribution depending on an operating position of EMFA using electromagnetic force in an electronic automatic ON / OFF type circuit breaker;
12A and 12B are diagrams of link structure and operation for explaining the operation of the opening and closing mechanism in the electronic wiring breaker equipped with the electromagnet actuator according to the present invention.
FIG. 13 is a block diagram illustrating an EMFA control unit of FIG. 4. FIG.

Hereinafter, an electronic circuit breaker equipped with an electromagnet actuator according to the present invention will be described in detail with reference to the accompanying drawings.

Figures 4a and 4b is a perspective view showing the appearance of the electromagnetic wiring breaker equipped with an electromagnet actuator according to the present invention, Figures 5a and 5b is one side view of Figures 4a and 4b, Figure 6 is 4a and 4b Is a top perspective view of and FIG. 7 is a side perspective view of FIGS. 5A and 5B.

8 is a perspective view showing the arrangement of the EMAF fixed on the single pole blocking unit of FIG. 4, and FIG. 9 is a block diagram showing the configuration of the inside of the single pole blocking unit of FIG. 4.

First, in the present invention, the actuator (EMFA) is driven by a principle that obtains a force on the mover by applying a current in the direction perpendicular to the space where the magnetic field is formed by applying the left-law law of Fleming, that is, using an electromagnetic repulsive force. By controlling the number of turns and the strength of the current, it is possible to control the operating force and the direction of movement.

The electromagnetic wiring breaker equipped with the electromagnet actuator according to the present invention is a circuit breaker for four poles, as shown in Figs. 4 to 9, and R phase (R pole), S phase (S pole), and T phase (T phase). Pole), N-phase (N-pole) phase breaker body 110 composed of phase-specific single-pole blocking units (111 to 114), and S-phase single-pole blocking unit (112) of the four phase-specific single-pole blocking units (111 to 114) Fixed pole 120 coupled to an upper portion and the breaker main body 110 are coupled to the upper portion of the circuit breaker main body 110 through the fixed mount 120 to generate an electromagnetic force with a maximum holding force. EMFA (130) for tripping or injecting the contact point, and is configured to correspond to the circuit breaker main body 110, the EMFA control unit 140 to drive and control the EMFA (130), and each of the single-pole blocking unit ( Is connected to the contact portion of 111 ~ 114 is configured on one side of the EMFA control unit 140 to manually block the contact portion It is configured to include a manual block 150.

Here, each of the single pole blocking units 111 to 114 includes a fixed contact 121 connecting the power supply side and the load side, a movable contact 122 contacting the fixed contact 121 by rotation, and the manual blocking unit ( 150 is connected to the movable contactor 122 and the opening and closing mechanism 160 to provide a driving force for opening and closing the contact of the movable contactor 122, and sensing the abnormal current of the overcurrent, instantaneous current or short-circuit current at the power supply side It comprises a sensor 124, and the extinguishing unit 125 for extinguishing arcs generated between the contacts (121, 122) during the blocking operation of the opening and closing mechanism 160 according to the detection result of the sensor 124.

The movable contact 122 is integrally connected to the shaft 126 which is rotatably installed and is configured to selectively contact the fixed contact 121 as the shaft 126 is rotated.

Here, the rotation of the shaft 126 is made through the EMFA 130 or the manual blocking unit 150.

Here, reference numeral 127 denotes an adjustable PCB case of the sensor 124.

The terminal portion 121 connects the power supply side and the load side to respective poles to connect the external converter and the internal device, and the arcing unit 125 is an arc generated when the movable contact 122 and the fixed contact are opened. It quickly dissipates and protects contacts and internal devices.

The sensor 124 measures the voltage, current, leakage current and temperature of the circuit breaker.

The opening and closing mechanism 160 is a link 161 which is linked to the EMFA 130 or the passive blocker 150, and each shaft 126 of each of the single pole blocking units 111 to 114 through the link 161. It includes a rotation driving pin 162 to rotate in common.

The manual blocking unit 150 has an emergency trip lever 151 to be connected to the shaft 126 of each of the single-pole blocking units 111 to 114 by the link 161 and the rotation driving pin 162, The emergency trip lever 151 serves to manually rotate the shaft 126.

When the shaft 126 is rotated by the operation of the manual blocking unit 150, the movable contact 122 is forcibly tripped with the fixed contact 121.

By configuring the passive breaker 150, when driven by the UPS inside the switchgear, it can be artificially cut off when the breaker does not operate due to the UPS and the internal and external problems.

Electronic circuit breaker according to the present invention configured as described above is rotated in a clockwise direction when the opening and closing mechanism 160 operates in a trip position due to an accident current such as overcurrent and short circuit current in the ON state. The shaft 126 connected by the rotation driving pin 162 is rotated in the clockwise direction, and the contact is opened by moving the movable contact 122 from the fixed contact 121.

At this time, the EMFA 130 can control the opening and closing mechanism 160 by a remote control, it can be forcibly tripped in the emergency by the manual shut-off unit 150.

Meanwhile, in the present invention, the movable contact 122 and the fixed contact 121 are bipolar contacts, and the bipolar contacts can increase the pressure point force by using the same force, and have a 1/2 arc arc excellent.

FIG. 10A is a top view illustrating the fixed mounting unit of FIG. 8, FIG. 10B is a side view illustrating the fixed mounting unit of FIG. 8, and FIG. 10C is a front view illustrating the fixed mounting unit of FIG. 8.

As shown in FIGS. 10A to 10C, the fixed mounting unit 120 extends from the lower side on both sides of the seating portion 171 to which the EMFA (130 of FIG. 7) is seated and fixed, and the seating portion 171. Fixing portions 172 fixed to both side surfaces of the monopole blocking unit 112, protrusions 173 protruding from an upper surface of the seating portion 171, and a plurality of fastenings formed on the side surfaces thereof so as to be engaged with the monopole blocking unit 112. It comprises a portion 174.

It describes the operation of the EMFA 130 using the electromagnetic force made as described above.

11A and 11B are schematic cross-sectional views showing simulation results of magnetic field distribution according to an operating position of EMFA using electromagnetic force in an electronic automatic ON / OFF type circuit breaker.

First, as shown in FIG. 11A, a state in which the mover 188 is moved downward as far as possible is shown. In this case, when the current is supplied to the coil 189 of the mover 188 in a state in which the mover 188 is moved upward as far as possible, the current is supplied in a direction for moving the mover 188 downward. Since the electromagnetic repulsive force acts in the relationship between the magnetic flux density generated between the 184 and the inner main permanent magnet 185 and the current density generated by the coil 189, the coil 189 is moved downward, so that the coil Movable 188 integrated with 189 moves downward. At this time, the force to move the coil 189 in the downward direction is a force sufficiently larger than the holding force to hold the magnetic body 190 of the movable member 188 by the outer, inner auxiliary permanent magnets (186, 187).

In this way, when the mover 188 moves downward as far as possible, the current supplied to the coil 189 is cut off. When the current is cut off, the moving force by the coil 189 and the inner and outer main permanent magnets 184 and 185 disappears, and the force by the magnetic field m1 of the outer main permanent magnet 184 and the inner main permanent magnet 185. (Magnetic force) extends to the magnetic body 190 of the movable element 188. This force acts as a holding force for holding the magnetic body 190, so that the mover 188 can continue to move downward.

In FIG. 11A, the magnetic body 190 of the movable member 188 is located above the middle point of the longitudinal direction (up and down direction) of the outer and inner main permanent magnets 184 and 185.

Here, the magnetic body 190 is subjected to a force to be located at the middle point in the longitudinal direction of the outer, inner main permanent magnets (184, 185) by the magnetic force of the outer, inner main permanent magnets (184, 185).

Accordingly, as shown in FIG. 11A, the magnetic body 190 is positioned above the middle point of the longitudinal direction (up and down direction) of the outer and inner main permanent magnets 184 and 185 while the movable member 188 is moved downward. In this case, the magnetic body 190 is continuously subjected to the force to be moved to the longitudinal middle point of the outer, inner main permanent magnets (184, 185), it is possible to continuously maintain the state to be moved down by the holding force as much as this force.

11B shows a state in which the mover 188 is moved upwards as much as possible. As shown in FIG. 11A, when the mover 188 is moved downward as far as possible, when the current flows in the reverse direction of the above-described direction to the coil 189 of the mover 188, the outer main permanent magnet 184 and the inner main The electromagnetic repulsive force acts in the relationship between the magnetic flux density generated between the permanent magnets 185 and the current density generated by the coil 189, thereby moving the coil 189 upwards, thereby being integrated with the coil 189. The mover 188 moves upwards. When the mover 188 moves upwards as much as possible, the current flowing in the coil 189 is cut off.

As described above, in the state in which the movable element 188 is moved upward as much as possible, independent magnetic fields are formed on the inside and the outside of the magnetic body 190 based on the middle portion in the left and right directions. The magnetic force lines m2 and m3 constituting the magnetic fields vertically cross the left and right directions on the longitudinal section of the magnetic body 190 to act as a force to pull the magnetic body 190 in a moving direction, that is, upward. do.

In addition, since the magnetic field is formed independently on both the left and right sides on the longitudinal section of the magnetic body 190, the magnetic paths of the respective magnetic force lines m2 and m3 become very short, so that the force pulling upwards is increased by the shortening. Therefore, the movable element 188 is able to continuously receive the force, that is, the holding force, to be moved further upward by the force pulling the magnetic body 190 upward.

Therefore, by configuring EMFA 130 in the electronic automatic ON / OFF type circuit breaker according to the present invention, the movable contact rotates by completely blocking the arc from the arc explosion of the mover contact terminal due to the arc action of the contact from an overload short circuit or a ground fault short circuit. The contact pressure balancing actuator, which maintains its own initial pressure continuously, can be completely isolated from the arc to improve the inherent performance of the breaker.

In addition, the structure is opened in two stages from the instantaneous pressure of the arc to prevent secondary arc explosion due to the secondary contact between the fixed contact point and the movable contact point due to the suction force of the electromagnetic force. As a structure of a pressure balancing operation device having a positioning structure, it is possible to secure the life and contact reliability of the contact to solve the minute contact energization state, thereby preventing the scattering of the contact burned by the arc during the contact operation.

In addition, by designing a pressure guide rail structure that maintains the pressure of the load-side arc load and the load-side arc load through the arc independent space to push the arc out at the same time, it is possible to maximize the efficiency in the short circuit.

12A and 12B are link structure diagrams and operation explanatory diagrams for explaining the operation of the opening and closing mechanism in the electronic wiring breaker equipped with the electromagnet actuator according to the present invention.

12A and 12B, a link 161 and a rotation driving pin 162 are connected to the shaft 126 on one side of the EMFA 130 to rotate the movable contact 162.

Meanwhile, a hole 127 is formed in the shaft 126, and the rotation driving pin 162 is inserted into the hole 127 to rotate the shaft 126.

The angle θ ₂ with respect to the inside of the hole 127 is obtained by using Equation 1 below, and the length r ₁ of the rotation driving pin 162 is calculated by applying Equations 1 to 3 to trip. Or by making a link necessary for the input and then connected to the EMFA 130, each phase can be vertically reciprocated with equal force.

Here, θ ₁ is the angle between the rotation drive pin 162 and the link 161, θ ₂ is the angle inside the hole 128, r ₁ is the length of the rotation drive pin 162, r ₂ is The distance between the center of the shaft 126 and the hole 128, a is the width between the connecting shaft of the link 161 and the pivot shaft of the shaft 126.

FIG. 13 is a diagram illustrating an EMFA control unit of FIG. 4.

As shown in FIG. 13, the EMFA control unit 140 for controlling the EMFA 130 operates with a power supply unit 141 to which power is input, and a communication unit 142 which performs bidirectional communication through external communication. The control unit 145 for controlling the EMFA 130 under the control of the operation switch unit 143, the state display unit 144 indicating the operation state and the communication unit 142 and the operation switch 143 It is configured to include.

In this case, the EMFA control unit 140 is a casing through an insulated material in order to control the large power of the DC 300V to enable the forward / reverse control, and constitute a large power control circuit that can operate stably.

Although not shown in detail, the communication unit 142 transmits a data request signal of a desired address for data transmission to a Modbus slave communication module based on TCP / IP, which receives and stores data acquired from equipment. A TCP / IP-based Modbus master communication module receiving the request data, an operation station for displaying the data transmitted through the Modbus master communication module to be directly monitored or controlled by a user through an MMI program, and And an alarm printer that interoperates with the operation station and records the alarm signal when an alarm signal is generated.

The state display unit 144 is installed to confirm the control contents, and the operation switch unit 143 is configured to input setting information and confirm the set information.

In the electronic circuit breaker equipped with the electromagnet actuator according to the present invention, the actuator (EMFA) can be mounted on the circuit breaker because it can be reduced in size, and the state can be grasped from the EMFA controller 140 for controlling it. By implementing the system, any user with a web base can easily identify the state of the breaker.

In addition, the existing circuit breaker may cause a build-up accident because the remote control is difficult, but the present invention can prevent the build-up accident in advance by implementing a system that can remotely monitor and control through the web, as well as domestic and overseas Business expansion is also possible.

In addition, through remote monitoring, stable power supply of voltage preference, ubiquitous environment integrated management for distribution boards, load monitoring of low-voltage distribution lines, regular maintenance of electrical facilities, reduction of social reserve costs for potential disasters, and economic benefits from disaster prevention An integrated electrical safety monitoring and analysis system can be implemented to reduce losses and prevent electrical disasters.

In addition, the EMFA remote control wiring breaker according to the present invention measures various power parameters such as voltage, current, power, leakage current, so that the status monitoring of the load can be operated all the time, thus reducing the operation and maintenance costs and operating the equipment. Efficiency can be improved by optimizing the total power consumption.

In addition, it is possible to minimize the preoccupation of the global market by the high technology of foreign companies and to create high added value of the low voltage circuit breaker industry linked to the IT industry and the smart grid.

In addition, the present invention, the electromagnetic actuator type bidirectional remote control wiring breaker is a next-generation voltage circuit breaker that can be turned on and off remotely with various measurement elements by grafting with the smart grid, the service usage prediction service technology of individual branch circuits, ubiquitous It can realize the integrated management system technology for the distribution panel of the environment, efficient power control by quarter and unmanned operation of branch circuit.

On the other hand, the present invention described above is not limited to the above-described embodiment and the accompanying drawings, it is possible that various substitutions, modifications and changes within the scope without departing from the technical spirit of the present invention It will be apparent to those skilled in the art.

100: lower case 110: case
170: fixed mounting 130: EMFA
200: upper case 300: EMFA control unit

Claims (11)

A circuit breaker body composed of a plurality of phase single-pole blocking units,
An actuating coupled or fixed to the upper portion of any one of the plurality of phase single-pole blocking unit is coupled to the upper portion of the circuit breaker main body to generate an electromagnetic force maximized the holding force to trip or inject the contacts of the respective single-pole blocking unit With the radar,
An actuator controller configured to correspond to the circuit breaker main body to drive and control the actuator;
And a manual breaker connected to the contact portion of each single-pole blocking unit of each phase, the passive breaker being configured on one side of the actuator control unit to manually block the contact portion. The method of claim 1, wherein the actuator
A fixed iron core having a predetermined length in the vertical direction on both the left and right sides of the manipulator while forming an overall outer shape of the manipulator with a middle wall of the inner middle interposed therebetween;
An outer main permanent magnet and an inner main permanent magnet disposed on an outer wall surface and an inner wall surface of the left and right passages of the fixed iron core, respectively;
An outer auxiliary permanent magnet and an inner auxiliary permanent magnet installed in the outer wall surface and the inner wall surface, respectively adjacent to both ends of the longitudinal direction of the outer main permanent magnet and the inner main permanent magnet;
A coil wound in a direction orthogonal to the outer main permanent magnet and the inner main permanent magnet with the inner main permanent magnets on both the left and right sides in the center, and the magnetic force by the outer and inner auxiliary permanent magnets. And a magnetic body disposed adjacent to one end of the coil corresponding to the installation position of the outer and inner auxiliary permanent magnets so as to be received. 3. An electromagnet according to claim 2, comprising a mover inserted into the passage between the outer main / secondary permanent magnet and the inner main / secondary permanent magnet to enable linear movement and connected to an external driven element. Electronic wiring breaker equipped with an actuator. 3. The circuit breaker for electromagnetic wiring according to claim 2, wherein the polarities of the outer main permanent magnet and the inner main permanent magnet are opposite to each other with the passage interposed therebetween. 3. The electromagnetic circuit breaker with an electromagnet actuator according to claim 2, wherein the polarity of the outer auxiliary permanent magnet and the inner auxiliary permanent magnet is the same polarity of the opposite side facing each other with the passage therebetween. . The magnetic field of claim 3, wherein when the magnetic body of the movable body is positioned between the outer auxiliary permanent magnet and the inner auxiliary permanent magnet, independent magnetic fields are formed on the inner side and the outer side based on the middle portion of the magnetic body in the longitudinal direction. And the magnetic force lines constituting the respective magnetic fields pass vertically through the middle portion in the left and right directions on the longitudinal section of the magnetic body. The method of claim 1, wherein each of the single pole blocking unit is connected to the fixed contact connecting the power supply side and the load side, the movable contact contacting the fixed contact by the rotation, and the manual disconnection unit and the movable contact by linking the movable contact Switching mechanism for providing the driving force for opening and closing the contact point, a detection sensor for detecting the abnormal current of the over-current, instantaneous or short-circuit current at the power supply side, and the contact between the contactor during the operation of the switching mechanism according to the detection result of the sensor An electronic circuit breaker equipped with an electromagnet actuator, comprising a arc extinguishing unit for extinguishing an arc. The method of claim 7, wherein the opening and closing mechanism is characterized in that the link is connected to the actuator or the manual cut-off unit, and the rotation drive pin for driving the common rotation of each shaft of each of the single pole blocking unit through the link. Electronic circuit breaker equipped with electromagnet actuator. The method of claim 8, wherein the manual shut-off unit comprises an emergency trip lever to be connected to the shaft of each single pole blocking unit by the link and the rotation drive pin, characterized in that for manually rotating the shaft by the emergency trip lever. Electronic circuit breaker equipped with electromagnet actuator. The method of claim 1, wherein the actuator control unit
The actuator is controlled by the power supply unit to which power is input, a communication unit performing bidirectional communication through communication with the outside, an operation switch unit performing an operation, a status display unit displaying an operation state, and controlled by the communication unit and the operation switch. An electronic wiring breaker equipped with an electromagnet actuator, characterized in that it comprises a control unit for controlling. The Modbus slave communication module of claim 10, wherein the communication unit transmits a data request signal of a desired address to the Modbus slave communication module to receive and store data acquired from the device. TCP / IP-based Modbus master communication module receiving request data, Operation station displaying the data transmitted through the Modbus master communication module so that the user can directly monitor or control through MMI program and the operation station And an alarm printer interoperating with the alarm printer to record the alarm signal when an alarm signal is generated.

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