KR101342525B1 - Permanent magnetic actuator being able to control precision motion velocity - Google Patents

Abstract

The present invention relates to a permanent magnetic actuator for enabling the precise control of operation velocity. According to the present invention, the permanent magmatic actuator for enabling the precise control of operation velocity includes: a body part; a permanent magnet; an mover; a coil moving the mover; a charge current supplying part; and a power supplying device. [Reference numerals] (1300) Power supply unit;(AA) (OPEN) signal;(BB) Power supply;(CC) (CLOSE) signal

Description

PERMANENT MAGNETIC ACTUATOR BEING ABLE TO CONTROL PRECISION MOTION VELOCITY}

The present invention relates to a permanent magnet actuator capable of precise operation speed control.

If a ground fault occurs due to an accident on the one-line ground fault in the power system, that is, the non-neutral line of the power supplying line, the breaker installed as a protection device in the power system is cut off.

However, in the event of a ground fault, the breaker operates in the case of an instantaneous ground fault, causing a power outage, and an outage occurs. If the cause of the ground fault occurs instantaneously, the ground cause is removed immediately. Since the breaker must be re-entered, the breaker of the line to the power supplying line is closed within 0.3 seconds after the opening (it is called O1 state) by using the high-speed re-closure breaker. In this case, the power is supplied to the state (this is called C1 state) .In this case, the cause of the ground fault is not solved. do)

After the O2 state, it may be different depending on the design of the transmission and distribution line, but after about 3 seconds have elapsed from 15 seconds, the breaker in the blocking state is operated in the input state. In this state, if the ground fault is eliminated, the input state is maintained, but if the ground fault current is not solved, the circuit breaker is operated again and the state is cut off (this is called C2O2 state).

This operation is called the operation of the breaker, which is divided into various types according to the transmission and distribution design standards of each country.

PMA (PerManent Magnetic Actuator, Permanent Magnet Actuator, hereinafter referred to as PMA) is used as an operation device for operating the breaker to perform the operation debt as described above.

In the present invention, the basic operation principle and operation structure of the circuit breaker using PMA are known or tolerated in the art, such as Patent Publication No. 10-1109741, Patent Publication No. 10-2004-0035176, Publication No. 2012-0000230, and the like. Omit the description.

The known PMA 10 structure and the basic circuit configuration for operating the same are shown in FIGS. 1 and 2 in a simplified manner.

1 and 2 as shown in Figures 1 and 2 to move the increasingly (not shown) of the circuit breaker 90 to block and connect the transmission and distribution line by moving the input and block by the combined structure of the electromagnet and permanent magnet 30 And, by switching the current direction of the coil 40 to generate a magnetic force in the electromagnet is a structure to operate the breaker in interaction with the permanent magnet.

In supplying current to the coil 40 for magnetizing the electromagnet, the PMA 10 may be supplied to the coil 40 by using the power stored in the condenser 50 in order to minimize the input and interruption time during input or interruption. ) And a mechanically moving mover 60 by the interaction of the electromagnetic force and the permanent magnet 30 to open and close the contact of the breaker 90.

At this time, the operation signal sensed by the transmission and distribution line and the distribution panel that manages the supply, for example, a ground fault current is sensed through a sensor such as a current transformer in case of a ground fault or a signal indicating that the ground state is normal when the ground fault is resolved. The control unit 100 transmits a signal to the switching control unit 110 for supplying and cutting off power to the coil 40, and the switching unit 120 receiving the input allows the operation appropriate to the corresponding signal.

The switching control unit 110 is a magnetic switch that is a switch that functions to cut off the supply of current to the coil 40 (generally referred to as an electronic switchgear, a relay, etc. as a structure for activating the increasingly by the magnetic force of the excitation coil) To supply or cut off the current coil

If the switch that functions to cut off the supply of current to the coil is a semiconductor switching device such as IGBT, SCR, etc., a signal for driving the semiconductor switching device is generated to drive the semiconductor switching device to supply current to the coil.

The controller 100 may be supplied with a forward current (or a reverse current, which is selected according to the structure of the breaker) to the coil 40 so that the contactor of the breaker 90 can be operated in case of a ground fault. The switch 120 is driven through the switching control unit 110 so as to be connected to the power supply 130 and the capacitor 50 through the switch 120, and through the connection of the switch with the current. It is supplied to the coil 40. As a result, the breaker is in the open state, which causes the part of the charge charged in the capacitor to be exhausted. (O1 operation)

The coil 40 is normally operated so that the breaker 90 remains blocked by the interaction between the coil 40 and the permanent magnet 30, so that the control unit 100 cuts power necessary for the switching operation. No more power consumption occurs in the switching control unit 110.

 Here, the circuit breaker 90 should perform a closing operation within a predetermined time such as 0.3 seconds according to the operation duty condition as described above, so that the reverse current can be supplied to the coil 40 through the switching controller 110 again. Signal is transmitted, and thus the switching controller 110 discharges the electric charges (although some of them are exhausted) charged in the power supply unit 130 and the condenser 50 to the coil 40 so that the reverse current can be supplied. The switch 120 is operated to supply the reverse current. (C1 operation)

In this case, even when the capacitor 50 is charged by the power supply device 130 during the idle time described above, the capacitor 50 is not charged as much as the initial state, but there is one power supply device 130 and the remaining capacitor charge charge is In this case, the closing operation is made, but the closing time is not always constant.

If the cause of the ground fault is not solved in the input state, the control unit 100 is to make the O1 operation as described above (this is called O2 operation). The interruption operation time, which is also blocked in this process, causes the interruption operation time to be non-uniform due to the lack of charge of the capacitor, thereby acting as a problem.

In addition, when using the semiconductor device in the switch unit 120 to cut off or supply the current to the coil 40, the malfunction is caused by the instantaneous discharge of the capacitor 50, such as unnecessary noise flowing from the power system.

In order to solve the nonuniformity of the closing and closing time as described above, in this field, it is intended to solve by providing a large capacity of the (50) capacitor.

That is, a capacitor that is suitable for the consumption of the coil 40 during the O2 operation and has a design capacity is used as the remaining charge amount consumed after the O1 and C1 operation.

However, even in this case, there is a possibility that an overcurrent may flow into the PMA coil 50 during the O1 and C1 operation, and thus the heat generation in the coil 40 and the nonuniformity of the O1 operation and the O2 operation are still not solved. No.

In the example of actual use, there is a difference depending on the design of the coil 40, and there is a difference depending on the breaker 90 capacity. For example, the capacity required for operation of O1, C1 and O2 is 20,000uF, but it is enough to use 3 times with one capacitor. Therefore, it is necessary to use 100,000uF capacitor to be suitable for O2 operation. There is a problem that the use of the condenser acts as a factor in the production cost increase.

1. Patent Document 1: Korea Registered Patent No. 1109741 (2012.01.18) Permanent Magnet Manipulator for Switchgear 2. Patent Document 2: Korean Laid-Open Patent No. 2004-0035176 (2004.04.29) Permanent magnet actuator of vacuum breaker 3. Patent Document 3: Korea Patent Publication No. 2012-0000230 (2012.01.02) Permanent magnet type manipulator for magnetic contactor

Therefore, the present invention is to solve the conventional problems as described above, an object of the present invention is to provide a capacitor for supplying a current to the coil for the O1 and C1 and O2 operation of the circuit breaker, respectively, and to selectively control the By selectively supplying the charges charged to the respective capacitors during the operation of O1, C1 and O2 according to the control signal of the controller, the operation time of the O1 and O2 operation is matched to ensure the reliability of the circuit breaker control and the rated current to the coil. By supplying only the permanent magnet actuator capable of precise operation speed control to minimize the coil damage caused by unnecessary overcurrent supply.

The present invention for achieving the above object is a movable magnet (60,6000) which is moved by a magnetic force or an electromagnetic force, the permanent magnet (30,3000) is disposed adjacent to the mover (60,6000) and generates a magnetic force, When the current is supplied, the magnetic flux is generated in the same direction as the magnetization direction of the permanent magnets 30 and 3000 to move and maintain the movable members 60 and 6000 by the magnetic force of the permanent magnets 30 and 3000. In the permanent magnet actuator comprising a coil (40,4000) for generating a magnetic flux opposite to the magnetization direction of (30,3000) to restore the mover (60,6000) to a spaced position,

 The first operation of moving the movers 60,6000 located in the second position in the first direction and positioning it in the first position (hereinafter referred to as "O1 operation") means that the breaker is blocked by a ground fault or the like. A first power supply 5200 (hereinafter referred to as a first capacitor) for supplying current to the coils 40 and 4000 of the permanent magnet actuators 10 and 1000,

A second operation (hereinafter referred to as "C1 operation") to move the mover 6000 located in the first position in the second direction opposite to the first direction by the O1 operation to be located in the second position (hereinafter referred to as "breaker" A second power supply (5100, hereinafter referred to as a second capacitor) that supplies current to the actuating coil of the PMA for a close operation, which is normally closed within 0.3 seconds after being blocked by a ground fault, etc.

The second direction opposite to the moving direction of the first direction at a position held by moving the mover 6000 in the first direction to move the mover located in the second position to the first position by the C1 operation; The third operation to move in the direction (hereinafter referred to as "O2 operation" which is the breaker was operated by a momentary ground fault in the breaker, but in order to minimize the power failure, the circuit breaker was introduced in the above C1 operation, but the ground fault is not solved, so the breaker is blocked) And a third power supply unit 5300 (hereinafter referred to as a third capacitor) for supplying current to the coil 4000 of the permanent magnet actuator 1000 for reopen operation.

PMA operating coil power supply circuit breaker 1200 for turning on and off the electrical connection with the charging current supply unit 5000 or the power supply unit 1300 for supplying power to the coil 4000, which is generally made of a relay or a magnetic switch The power supply is cut off by opening and closing, the semiconductor switching element can be utilized, and the relay which excites the coil by the power supplied through the signal input from the sensor managing the power system, the timer contact, etc. A magnetic switch or, in the case of a semiconductor switching element, a semiconductor circuit operated by a clock generator and a gate signal trigger signal according thereto),

The first and third power supply selection control unit 9000 for selectively supplying the power of the first power supply 5200 and the third power supply 5300 to the coil 4000 during the O1 / O2 operation, which is a timer It consists of a relay or a magnet switch that opens and closes a contact by the timer operation and energizes the coil by power supplied through the contact, or in the case of a semiconductor switching element, by a clock generator and a corresponding gate signal trigger signal. It consists of a semiconductor circuit that is operated),

A power supply unit 1300 for supplying power to the charging current supply unit 5000 or the PMA operating coil power supply circuit breaker 1200 or the first and third power supply unit selection controllers 9000 and the controller 1400;

PMA operating coil power supply cut-off controller 1250 or the first to operate the PMA operating coil power supply circuit breaker 1200 by a close or open signal of a breaker which is a signal input from a power system (not shown) And a controller 1400 for controlling the third power supply selection controller 9000 and the like.

The charging current supply unit 5000 is preferably a capacitor that is easy to charge and discharge, but is not limited thereto, and may be a storage battery, a secondary battery, a fuel cell and the like that are easy to charge and discharge.

PMA operation coil power supply circuit breaker 1200 is made of a relay or a magnet switch known in the art to cut off the power supply by opening and closing the switch, can utilize a semiconductor switching element, input from the sensor to manage the power system It consists of a relay or a magnet switch to excite the coil by the power supplied through the signal, the timer contact, etc. to open and close the coil, or in the case of a semiconductor switching element, the semiconductor circuit operated by a clock generator and a gate signal trigger signal Is done.

The first and third power supply selection control unit 9000 is made of a relay or a magnet switch to open and close the contact by the timer and the timer operation and to open and close the coil by exciting the power supplied through the contact, or the semiconductor In the case of a switching device, the circuit includes a semiconductor circuit operated by a clock generator and a gate signal trigger signal.

The power supply unit 1300 is preferably a DC power supply known in the art, it is preferable that a constant voltage control unit is added, but this is not limited to the power supply that can operate the system of the present invention It can be used without limitation in any way or form.

The control unit 1400 and the PMA operation coil power supply cut-off controller 1250 are used by a microprocessor or the like conventionally used in the art or known in sequence control, or a sequence consisting of a relay or a magnet switch, a timer, or the like. The on / off control function of the switch using the electromagnetic field used for control can be utilized.

As described above, the present invention, by using three capacitors of about 1/5 capacity of the existing capacitor instead of the large-capacity capacitor compared to the existing permanent magnet actuator, in terms of reducing the production cost and securing spare parts of the existing permanent magnet The type manipulator should be provided with one large capacity condenser, but the permanent magnet type manipulator according to the present invention may secure only one capacitor having a capacity of about 1/5 as a spare part. to be.

In addition, in the operation duty of the circuit breaker, in particular, by using the power charged with the same capacity during the first operation and the third operation, the deviation of operation time does not occur, which contributes to the improvement of the reliability of the power system and the improvement of the power quality. By optimizing the capacity to be supplied, it is possible to prevent damage to the coil, to improve the life and to reduce the power consumption.

1 is a view schematically showing a permanent magnet actuator for a conventional magnetic contactor.
2 is a view schematically showing a conventional permanent magnet actuator operating circuit for a magnetic contactor.
3 is a structural diagram of a permanent magnet actuator for a magnetic contactor according to an embodiment of the present invention.
4 is a permanent magnet actuator operating circuit for a magnetic contactor according to an embodiment of the present invention. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4.

As shown, PMA (1000) according to the present invention, the body portion 1100 formed a moving space therein, the permanent magnet 3000 is installed in the inner space of the body portion 1100, and the body It is installed in the inner space of the body portion 1100 and the mover (60,6000) moving in the inner space of the unit 1100, and with the current energized by interacting with the permanent magnet (3000) the mover ( It consists of a coil 4000 for moving the 60,6000.

In this case, the coil 4000 is a portion that generates magnetic force when the current is energized so that the direction of the magnetic force is switched by changing the current direction, and in the form of one coil that switches the direction in which the current is applied using one coil. Alternatively, it will be apparent that the coil generating the magnetic force by the forward current and the coil generating the magnetic force according to the reverse current can be installed separately if necessary.

 Hereinafter, a description will be given of a single coil that conducts current to one coil, but is not limited thereto. In the case of a coil that conducts only a forward current and a coil that conducts only a reverse current according to the structure of the breaker PMA 1000. Is only a difference in the coil connection structure, and thus description thereof is omitted.

 In order to operate the PMA 1000 described above,

PMA (1000) installed in the power system to operate the circuit breaker in case of ground fault

When a ground fault occurs in the power system, a signal indicating that a ground fault has occurred is detected by sensors (not shown), that is, various relays, which are not shown, and are input to the controller 1400.

The control unit 1400, which receives the input, should open the circuit breaker 90 because a ground fault has occurred, thereby supplying a magnetic force for the mover 60 and 6000 to move from the second position to the first position. The PMA operation coil power supply cut-off controller 1250 operates to connect the cut-off operation switch 1230 and the other cut-off operation switch 1240 of the PMA operation coil power supply breaker 1200 to supply current to the 4000. The PMA operation coil power supply cut-off controller 1250 which receives the signal and inputs it is operated, and the cut-off operation switch 1230 and the other cut-off operation switch 1240 of the PMA operation coil power supply breaker 1200 are in an on state. Will be.

As a result, the current caused by the charge charged in the first power supply 5200 and the current of the power supply 1300 are normally connected contacts 9100 of the first and third power supply selector controllers 9000 and disconnection operation switches 1230. ) And the coil 4000 and the other cut-off operation switch 1240 to form a closed circuit so that the current by the charge charged in the first power supply 5200 and the current of the power supply 1300 flows, thereby causing the coil ( The magnetic force is generated at 4000, and the generated magnetic force interacts with the magnetic force of the permanent magnet 3000 so that the mover 6000 moves from the second position to the first position and mechanically moves with the mover 6000. The contact of the combined circuit breaker is opened and the OPEN operation of the circuit breaker is made (O1 operation).

 At this time, when the operation O1 is completed, the controller 1400 operates the timers T of the first and third power supply selection controllers 9000 to open the normally connected contact 9100 and to connect the normally opened contact 9200. do.

 ,

In addition, a signal is transmitted to the PMA operation coil power supply cutoff controller 1250, thereby opening the cutoff operation switch 1230 and the other cutoff operation switch 1240 to cut off the supply of current flowing through the coil 4000.

At this time, the normally open point point 9200 of the first and third power supply selection control unit 9000 which is operated in conjunction with the normally connected contact 9100 by operating the timer T of the first and third power supply selection control unit 9000 is connected. The first power supply 5200 is charged by the power supply.

Here, the diode connected to the first power supply unit 5200, which is not assigned a drawing number, is a device for preventing the current discharged when the first power supply unit 5200 is discharged back to the power supply unit 1300. Hereinafter, the diodes connected to each of the first, second, and third power supplies have the same function.

As the circuit breaker is responsible for the operation as described above, the control unit 1400 generally generates an operation signal for inputting the circuit breaker again within 0.3 seconds. It is obvious that 0.3 seconds can be adjusted if necessary.

The PMA operation coil power supply cut-off controller 1250 receiving the input signal from the controller 1400 within 0.3 seconds after the completion of the O1 operation is performed.

Different from the input operation switch 1210 of the PMA operating coil power supply circuit breaker 1200 to supply a current to the coil 4000 for supplying a magnetic force capable of moving the mover 6000 from the first position to the second position. The closing operation switch 1220 is operated to be connected, so that the closing operation switch 1210 and the other closing operation switch 1220 of the PMA operating coil power supply circuit breaker 1200 are turned on.

As a result, the current by the charge charged in the second power supply 5100 and the current of the power supply 1300 form a closed circuit through the input operation switch 1210, the coil 4000, and another input operation switch 1220. The current caused by the charge charged in the second power supply unit 5100 and the current of the power supply unit 1300 flows, thereby generating a magnetic force in the coil 4000, the generated magnetic force and the permanent magnet 3000 The magnetic force of the interaction of the mover 6000 is moved from the first position to the second position, and the close operation (C1 operation) of the breaker is made while the contacts of the breaker mechanically coupled to the mover 6000 is connected. .

At this time, when the C1 operation is completed, the control unit 1400 sends a signal to the PMA operation coil power supply shut-off controller 1250 to open the closing operation switch 1210 and another closing operation switch 1220 to the coil 4000. Shut off the supply of current (C1 operation).

In addition, the second power supply 5100 is charged by the power supply 1300.

After the operation C1, the control unit 1400 checks whether a blocking signal due to an accident such as a ground input to the control unit 1400 is continued. In case of an accident such as ground fault due to a temporary cause, the blocking signal is not input. However, if the cause of the ground fault is not resolved, the blocking signal will continue, so the breaker should be blocked.

If the cause of the ground fault is eliminated and the cutoff signal is not input, the above C1 state continues.

The first and third power sources operated in conjunction with the normally-connected contact 9100 after the set operating time of the timer T is set as the timer T of the first and third power supply selection controllers 9000 is operated during operation 01. The normally open point point 9200 of the supply unit selection control unit 9000 is opened and the normally connected contact point 9100 is connected again. Here, the operating time of the timer (T) can be set by the operator of the present invention, but generally within the range of 15 seconds to 15 minutes.

If the C1 operation after the C1 operation, the control unit 1400 checks whether a blocking signal due to an accident such as a ground input to the control unit 1400 is continued. If an accident such as a ground fault occurs due to a temporary cause, the blocking signal is not input. If the cause of the ground fault is not solved, the blocking signal is still on and the breaker must be blocked.

 In this case, the mover 6000 is in the second position because it is in the C1 state.

Accordingly, the control unit 1400 switches the cutoff operation switch of the PMA operating coil power supply circuit breaker 1200 to supply current to the coil 4000 for supplying the magnetic force that allows the mover 6000 to move from the second position to the first position. The operation signal is sent to the PMA operation coil power supply cut-off controller 1250 so that the 1230 and the other cut-off switch 1240 can be connected thereto, whereby the cut-off switch of the PMA operation coil power supply breaker 1200 is 1230 and another cut-off switch 1240 are turned on.

At this time, the normally open (9200) of the first and third power supply selection control unit 9000 is

Normally opened point point 9200 operated in conjunction with the normally-connected contact point 9100 as the timer T of the first and third power supply selection controllers 9000 is in operation by the controller 1400 during the operation O1. Is connected and the normally connected contact 9100 is open.

As a result, the current due to the charge charged in the third power supply 5200 and the current of the power supply 1300 are normally opened in the first and third power supply selector controllers 9000, and the disconnection operation switch 1230. ) And the coil 4000 and the other blocking operation switch 1240 to form a closed circuit, and the current caused by the electric charge charged in the third power supply 5200 and the current of the power supply 1300 flow through the coil 4000. Due to this, a magnetic force is generated in the coil 4000, and the generated magnetic force and the magnetic force of the permanent magnet 3000 interact with each other to move the mover 6000 from the second position to the first position. When the contact of the circuit breaker mechanically coupled to the (6000) is opened, the OPEN operation of the circuit breaker (O2 operation) is performed.

At this time, when the above O2 operation is completed, the controller 1400 resets the timers T of the first and third power supply selection controllers 9000 to be in the operation standby state, and the normally connected contact 9100 is connected thereto. The normally open contact point 9200, which is interlocked, is opened, and sends a signal to the PMA operation coil power supply cut-off controller 1250 to open the cut-off operation switch 1230 and the other cut-off operation switch 1240 to the coil 4000. Shut off the supply of current.

At this time, the third power supply 5200 is charged by the power supply 1300.

In the above operation, when there is an "input or interruption signal" of the breaker caused by a ground fault, etc. inputted from the power system, or an "injection or interruption request signal" by artificial manipulation, the breaker is operated as described above "O1 operation" and "C1 operation". &Quot; O2 operation "," C2 operation " which is re-inserted, " O2 operation "

 The O1 operation, the C1 operation, the O2 operation, the C2 operation to be re-inserted, and the O1 or O2 operation to be opened again are at least one operation duty of the circuit breaker even when the power supply from the power supply unit 1300 is temporarily stopped. It will be apparent that the charging current supply unit 5000 may be operated.

 Microprocessors, timers, relays, magnet switches, power supply units for supplying direct current, etc., which are used in the present invention, which are not specifically described in the present invention, are well known and conventionally utilized components in the art, and are used for mechanical coupling of a PMA and a circuit breaker. The mechanical connection and mechanical operation mechanism by means of the structure known in the art as shown in the prior art described above, so a detailed description thereof has been omitted.

In addition, the microprocessor utilized as the controller 1400 is used to control the sequence consisting of a semiconductor integrated circuit known in the art, or is composed of a timer, a relay, and increasingly used in sequence control to control the control target sequentially It is known that the specific description is omitted.

 Charging current supply unit to enable O1 operation, C1 operation, and O2 operation in the permanent magnet actuator for the circuit breaker that operates the circuit breaker for blocking (01 operation), input (C1 operation) and sanction blocking (O2 operation) as described above. By configuring the 5000 as the power supply for each operation,

In particular, when the charging current supply unit 5000 is a condenser, it is possible to control each operation by a constant supply current at all times regardless of the remaining charging capacity in the blocking input blocking operation occurring sequentially. Can be implemented.

In addition, in terms of securing spare parts of the existing permanent magnet actuators should be provided with one more large-capacity condenser, the permanent magnet actuator according to the present invention even if only one capacitor of about 1/5 of the capacity as a spare part Therefore, it is efficient in small size, light weight and maintenance operation of permanent magnet actuator.

In addition, it is possible to secure the power system management and supply high quality power by using the power charged with the same capacity during the first operation and the third operation, especially in the operation of the breaker.

By optimizing the capacity supplied to the coil, it can prevent damage to the coil, contribute to the improvement of life, and has the advantage of reducing power consumption.

90: breaker
10,1000: Permanent Magnet Manipulator
1100: body
1200: PMA operating coil power supply breaker
1210: closing operation switch
1220: other closing action switch
1230: cut-off switch
1240: other cut-off switch
1250: PMA operating coil power supply cutoff controller
1300: power supply
1400: control unit
30,3000: Permanent Magnet
40,4000: coil
5,000: Charging Current Supply Unit
5100: second power supply
5200: first power supply
5300: third power supply
60,6000: mover
9000: first and third power supply selection control unit
9100: Normally connected contacts
9200: Getting Always Open

Claims (4)

A body part forming a moving space therein;
Permanent magnet installed in the moving space of the body portion:
A mover moving within the moving space of the body portion;
A coil installed in the moving space of the body part and moving the mover by interacting with the permanent magnet along with current flow;
Charge current supply unit consisting of two or more to supply power to the coil;
PMA operation coil power supply circuit breaker for supplying power to the coil;
First and third power supply selection controllers for selecting power of the charging current supply unit;
A control unit controlling a PMA operation coil power supply cut-off controller or a first and third power supply selection controllers for operating the PMA operation coil power supply breaker; And
And a power supply device for supplying power to the charging current supply unit or the PMA operating coil power supply circuit breaker or the first and third power supply selection controllers or the control unit.
The charging current supply unit,
A first power supply unit for supplying current to the coil for the first operation of moving the mover located in the second position in the first direction and positioning the mover in the first position;
A second power supply unit for supplying current to the coil for the second operation of moving the mover located at the first position in a second direction opposite to the first direction to position the mover at the second position;
And a third power supply unit for supplying current to the coil for the third operation of moving the mover located at the second position in the first direction and positioning the first position at the first position.
delete The method of claim 1,
The first and the third power supply selection control unit is a permanent magnet actuator capable of precise operation speed control, characterized in that to selectively supply the power of the first power supply and the third power supply to the coil.
The method of claim 3,
A permanent magnet actuator capable of precise operation speed control, characterized in that the first power supply, the second power supply and the third power supply is a capacitor capable of charging and discharging.

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