TW315477B - - Google Patents

Description

515477 A7 B7 V. Description of the invention (Reference to the relevant application of the Central Consumer ’s Bureau of the Ministry of Economic Affairs for the duplication of employee consumption cooperation. This application is the reinvention of US Patent Application No. 08 / 440,783 filed on May 15, 1995. Detailed Description of the Invention Background of the Invention 1. Field of the Invention: The present invention relates to a method and device for controlling an electronic collective switch. More specifically, I, 本 发 # is about using a voice coil actuator to quickly and reliably switch current Circuit breaker, method and device for controlling collective switch 2. Description of related technologies: In the power distribution system, there are various reasons to install the collective switch in the system, for example, to respond to abnormal load conditions To provide automatic protection, or to allow the various parts of the system to open or close, etc. Various types of collective switches include: switches for easily opening and closing transmission lines such as wires connected to capacitor combinations; when a fault is detected, A fault current circuit breaker capable of automatically opening a certain line; and a multiplexer, when a fault is detected, quickly open and close the preset The number of times is until the fault is cleared, or the compounder is locked in an open circuit position. In this technology, the air current circuit breaker is widely used, because these circuit breakers can provide rapid '. The contact has a long service life, low mechanical stress, and high operational safety. In the empty current circuit breaker, the contact is sealed in the empty enclosure. One of the contacts is the movable contact, which has operations The component extends through the hollow sealing ring in the seal body (please read the precautions on the back before filling in this page) -install '*, 11-^ 3 !. CNS in the table paper) Α4 specification〇X 297mm315315 A7

Printed by the Central Ministry of Economic Affairs, Ministry of Economic Affairs, Beigong Consumer Cooperatives Summary of Invention and Objectives One of the objectives of the present invention is to provide an actuator mechanism and control method for a gift switch that can cause arcing and transient current during the opening and closing period Produced the least. Another object of the present invention is to provide an actuator mechanism and a control method for collecting snake switch so that the system can be accurately monitored. Another object of the present invention is to provide a collective switch actuator mechanism that can cover the actuator motion profile group, thereby eliminating various types of mechanical systems. A further object of the present invention is to provide a collective switch actuator mechanism that can be controlled by any commercially available motor control circuit 'or a dedicated motion control circuit * Another object of the present invention is to provide a method that can achieve faster speed and The collective switch actuator mechanism with large force, and this kind of speed and force is not easily produced by the mechanical system of the prior art. Another object of the present invention is to provide an improved synchronous operation gift-gathering switch which can greatly reduce the transient current that occurs during the switching operation. Generally speaking, the collective switch combined with an empty circuit breaker has used various spring-loaded mechanisms connected to the working member in order to surely open and close the contacts of the circuit breaker. One of the most commonly used in this type of device is a simple toggle switch single toggle link set. The main function of these mechanisms is to quickly drive the contacts to their open or closed positions to reduce arcing to a minimum. Various applications may require the use of multiple spring mechanisms with latches and connecting rod sets. In order to compress or lengthen the drive spring to start these mechanical systems, it is usually set to -5- This paper size is easy to use China National Standard (CNS) A4 specification (210X297mm) (Please read the precautions on the back before filling in this Page)-Install. Brigade A7 _B7 V. Description of the invention (3) There are actuators. Such actuators may include, but are not limited to, solenoids, motors, or calendar devices. Compared with the inherent speed required by a current circuit breaker to effectively turn on the current, the speed of these actuators is relatively slow and the response time is not ideal. For this reason, the actuator is not usually used directly to drive the contacts of the circuit breaker, but to activate the spring mechanism that acts quickly. The main disadvantage of this system is that the spring-driven operation itself is not easy to control, and it requires a lot of engineering effort to fine-tune the performance of the mechanism. In fact, this means that many different mechanisms need to be designed to meet the different operating requirements of the switch fault current circuit breaker and the compounder, and in each of these types of collective switches, depending on their use Depending on the scope of 'the need for different institutions, including voltage and current requirements. Printed by Employee Consumer Cooperative of China National Bureau of Standards, Ministry of Economic Affairs ----- ^ ---; ---- installed-- (please read the precautions on the back before filling this page)

: 1T Τ Furthermore, because the commonly used in power applications is high-voltage electricity, the movement of the circuit breaker contacts must be moved quickly and accurately in order to minimize the generation of transients and transient currents between the contacts . Depending on the scope of its application, whether it is applied to capacitor bank switching or fault current interruption, a person skilled in the art can determine the most favorable time for opening and closing. The most suitable time is related to the precise point on the voltage waveform or current waveform, at which point the occurrence of solitary and transient current will be minimal when current interruption or contact is implemented. Since the traditional flicking mechanism itself cannot perform this kind of fine adjustment, the present invention provides a practicable way to achieve a point on the waveform or a synchronous switching action. This synchronous operation of the circuit breaker is beneficial to reduce the wear of the contacts of the circuit breakers' and greatly reduce the general transient current that the power system downstream of the collective switch unit bears. -6-6-

0 JL 5477 A7 B7 V. Description of the invention () 4 Another feature of the controllable synchronous work collective switch device is that it controls the speed at which the contacts close. In a traditional system, these contacts are driven together at an extremely fast speed in an uncontrollable state, and may trip multiple times before stopping. This bounce phenomenon is unfavorable, because the arc will soften the contact with the occurrence of arc, and when the contact is finally mated, it will produce a strong inscription. The current breaker of the present invention printed by the Employee Consumer Cooperative of the Central Ministry of Economic Affairs of the Ministry of Economic Affairs includes a current breaking device with at least one movable contact; the actuator is connected to the movable contact of the current breaker; a back detector , Used to monitor the movement of the actuator; and-the control system is connected to the feedback detector, thereby receiving information about the movement of the actuator from the feedback detector, and at the same time controlling the movement of the actuator based on the obtained information. The current circuit breaker also includes a memory to store the required motion profile of the actuator; and a microprocessor to compare the actuator's motion with the required motion profile, and according to the actuator's motion and The comparison results of the required motion profiles are used to control the motion of the actuator. The current circuit breaker also includes a detector for sensing the voltage waveform or current waveform on the line to be switched, and provides the control system with information about such Waveform information; wherein, the control system and the system control the movement of the actuator based on the information about the waveform. The foregoing features and advantages of the present invention will become more apparent from the following more detailed description. The following drawings help to explain the present invention. Brief description of the drawings In the following description, the present invention is described with specific embodiments, among which: ---. This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 V. Invention Explanation (The printed by the Ministry of Economic Affairs of the Central Bureau of Industry and Commerce Consumer Cooperative 1 is a schematic diagram of a collective switch device using a voice coil actuator; FIG. 2 is a cross-sectional view of a specific example of a collection switch; FIG. 3 is FIG. 2 Fig. 4 is an enlarged view of a specific example of the hollow module integrated switch; Fig. 4 is an enlarged view of the operating mechanism of the specific example shown in Fig. 2; Fig. 5 is an exploded view of the main ginger assembly of the operating mechanism; A graph showing the relationship between the system voltage and time and the dielectric loss of the circuit breaker; FIG. 7 is a schematic diagram of a circuit that can be used in the present invention; FIG. 8 is a graph showing an overview of the motion that can be used in the present invention; FIG. 9 is a graph that can be used in the present invention Voice coil actuator; FIG. 10 shows a latch mechanism that can be used in the present invention; FIG. 11 shows a contact compression spring mechanism that can be used in the present invention; FIG. 12 is a synchronous timing showing the open circuit operation of the capacitor switch Chart. DETAILED DESCRIPTION OF THE INVENTION With reference to the drawings, the present invention will be described in detail in the form of preferred specific examples in order to better understand the present invention. In all drawings, the same elements use the same element numbers. In FIG. 1 In, the input power line 2 is connected in series with the current circuit breaker 4 to enable the current circuit breaker 4 to disconnect the power line. When there is a preset command or a fault in the fault current circuit breaker exceeds a predetermined threshold, the power line 2 opens One of the contacts of the current circuit breaker 4 is connected to the-end of the joystick 6. The other end of the joystick 6 is connected to an actuator during operation, for example, a voice coil actuator 8. Voice coil actuation The device 8 directly acts on the manipulation sample 6 in order to open the 8-core tensile scale suitable for the two national standards (-丨 .-- ^ ---- clothing-(please read the precautions on the back before filling this page)

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T. Medium Α7 Β7 Ministry of Economic Affairs, Central Bureau of Precincts, Staff Consumer Cooperative, printed V. Description of invention (6 or contact of closed current circuit breaker 4. Voice coil actuator 8 is a direct drive, limited motion device that uses a magnetic field And the coil 10 to generate a force proportional to the current applied to the coil. The electromechanical conversion of the voice coil actuator 8 follows the Lawrence force principle, that is, if a conductor with current is placed in a magnetic field , There will be a force acting on the conductor. The magnitude of the force is determined by the following formula:

F = kBLIN where F is the force, k is the constant, B is the magnetic flux density, L is the length of the conductor, I is the current in the conductor, and N is the number of turns of the conductor winding. The current through the voice coil winding 10 is controlled by the control mechanism 丨 2. Any commercially available control mechanism 12 can be used. For example, suitable control mechanisms 12 include: single-loop controllers, programmable logic controllers, or distributed control systems. The control mechanism 12 may be connected to the feedback device 14, and the feedback device 14 may provide input regarding the position of the manipulation sample 6. The control mechanism 12 can also be connected to the interlocking device 16. When the flash device 16 receives the instruction of the control mechanism 12 and is connected to the joystick 6, the manipulation sample 6 is clamped at its current position. In the alternative device 1, the device 16 may be a water-resistant magnet or a mechanical latch that is not connected to the control device 12. The cross-sectional view of a specific example of the present invention is shown in FIG. 2. There is a Zhao Erlong solid insulating seal 18 surrounding the joystick 6 and the current circuit breaker 4. The sealed Zhao 18 can be made of any suitable epoxy resin from Tao Zi's, or any other suitable strong insulating material. The high-voltage electrical connector M on the power line side and the high-voltage electrical connector 20 on the load side penetrate the insulation seal 18 and are connected to the current __ -9- This paper-shaped New Zealand financial system (cns 71 ^ 771 ^^ 7

Seal of the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy Α7 Β7 V. Description of the invention (7) Circuit breaker 4. The high-voltage connectors 20 and 22 are arranged at exactly 180 degrees apart, and are parallel to each other. The seal 18 is between the high-voltage electrical connectors 20 and 22, and each high-voltage electrical connector 20 and 22 and Provide strong insulation between ground terminals (not shown). The current circuit breaker 4 includes an empty module or bottle 24, as shown in the section of FIG. 3, a pair of switch contacts 71, 72 are arranged in the empty module 24. The empty module 24 is provided with a housing and an empty environment for this pair Switch contact operation. The module is usually composed of a long, generally tubular, hollow ceramic shell 73, which is preferably made of bauxite, the switch contact 71 is movable, and the other switch contact 72 is stationary Or fixed 3 static contacts 72 are fitted with special fittings 76, so that the combined high-voltage electrical connector 22 can be led out at an angle of 90 degrees. The movable switch contact 71 is fixed at the longitudinal end of the joystick 6. One of the fixing methods is to screw the stud bolts 32 into the knife joint mechanism 74 of the movable sample 75 of the movable contact 71. When the switch contact is in the closed state shown in the figure, a low resistance or short circuit is formed between the high-voltage terminals 20 and 22. The current circuit breaker 4 further includes a current exchange combination and an interface 26 between the empty module 24 and the current exchange combination. The current exchange assembly includes a movable piston 28 and a fixed housing 30. In this specific example, the joystick 6 is made of electrically insulating material. The other end of the joystick 6 is fixed to the flange portion 34 of the voice coil actuator 8 with a hard tip 36. The tip 36, which holds the aforementioned assembly in place, can be fixed in any suitable manner. For example, a pair of locating rings to fix the β-circular linear ball bearing 38 and the retaining ring 40 holding the bracket can make the joystick 6 move smoothly β-coil winding 10 is arranged on the outer body and protrusion of the voice coil actuator 8 Margin 34-10- This paper scale is applicable to China National Standard (CNS) Α4 specification (210X 297mm) (please read the precautions on the back before filling in this page). Install-• -'ll room. The side flange portion 42 is fixed to the outer body of the voice coil actuator 8 and is connected to the side yoke 44, so that the voice coil actuator 8 can be firmly fixed in the protective case 46. The protective casing 46 is fixed to the lid snake by the flange portion of the casing, and the cover 50 of the protective casing is connected to the solid edge sealing body 18 by the flange portion 52 of the lid body. Like a strong insulating seal, the protective shell 46 is also formed of ceramic, porcelain, any suitable epoxy resin, or any other suitable strong insulating material. In this specific example, the feedback device 14 is a position detector, such as a linear potentiometer 14. The linear potentiometer 14 can be formed by a three-terminal rheostat or a resistor with one or more adjustable sliding contacts, so it can be used as an adjustable voltage divider. The linear potentiometer 14 provides position information about the joystick 6 to the control The control mechanism u of the voice coil actuator 8. In addition, the back product device 14 may be formed by an optical encoder. The flash device 16 is used to fix the joystick 6. The latching device may be a programmable device, such as an electromagnet, or a spacer 56 made of a non-ferromagnetic material 54 for fixing the latching magnet 54 to the protective cover 50, bolt 58 , A simple mechanical type composed of an interlocking plate 6 made of iron or steel, and a latch plate tip 6 2 used to fix the printing and mounting 6 of the employee consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 6 to the joystick 6 Latch for permanent magnet.

For further understanding of the present invention, please refer to FIGS. 4 and 5. Fig. 4 shows an enlarged view of the working mechanism of the preferred embodiment shown in Fig. 2, and Fig. 5 shows an exploded view of the main components of the working mechanism. A detailed description of the control mechanism of the present invention is as follows. Figure 6 shows a graph of the voltage signal 100, including the voltage level v (t) for time 11-This paper scale is applicable to the Chinese National Standard (CNS) ΑΟΛ # · (210〆, 297mm> Central Ministry of Economic Affairs A7_B7 printed by the Industrial and Consumer Cooperatives. The waveform of t between invention descriptions (9). When the frequency is 60 Hertz, the ideal time per half cycle is 8.33 milliseconds (ms). However, the actual cycle is due to harmonic or The asymmetrical state may change, so this half-cycle may be greater or less than 8 33 ms. When used in capacitor switching, in order to minimize the generation of arcing and transient current, the contact of the current circuit breaker is the most ideal When V (t) is equal to zero, it will be instantaneously closed at zero. Please refer to point A in Figure 6. However, because the contact cannot be closed instantaneously, the timing of starting the opening and closing sequence must be carefully controlled to reduce the transient current 7 shows a preferred embodiment of the control circuit 200 used in the present invention. At the center of the circuit 200 is a microprocessor 202 suitable for use in a wide temperature range »Electric power controlled by the current circuit breaker 4 The voltage waveform on the line is analyzed by the voltage waveform analyzer 204, the phase-locked loop 206, and the Vzero crossover circuit 208. Information about the voltage waveform of the power line to be disconnected includes the timing of the zero point A where the voltage V (t) is zero Is input to the microprocessor 202. Alternatively, the voltage waveform analyzer 204 can be used to directly measure the voltage waveform outside the line without the phase-locked loop 206. The opening and closing commands are input to the microprocessor 202 via the input terminals 210 and 212, respectively. The opening and closing commands can be set according to the application of the current circuit breaker 4, and can be set manually. The clock can be started at a predetermined time, can be started by external control, or triggered when a fault is detected. If necessary, the reset signal 214 can be input to the microprocessor 202 Manually reset the microprocessor 202. For example, if the current circuit breaker 4 is manually operated-this paper is again applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) " (please first Read the notes on the back and fill out this page).

--- IT A7 10 V. Description of the invention (When operated by type, the microprocessor 202 cannot be set to the current state of the current circuit breaker 4. In this case, the microprocessor 2〇2 must be reset. I—: --- ^ ------ (Please read the note Ϋ on the back before filling in this page) The status display can be set to display various conditions of the circuit 200 or the current circuit breaker 4. These displays may include a display Maintenance light 216 requiring maintenance-power on indicator light 218, a switch to turn off the display 22, a switch to turn off the display 222, and a counter 224 for counting cycles or system operations »Preferred embodiments of the present invention may include two Control system. The first control system is traditionally 'so not detailed here'. It can be used to determine when the power line controlled by the circuit breaker 4 should be opened or closed. The first control system may include a When there is a fault or at a predetermined time, the fault detector or timer of Slough is implemented. Another way is to input the opening and closing command directly into the system. Whether the opening and closing command is issued in the first control system or manually, it can be divided The microprocessor 202 is input via the input terminals 210 and 212. The second control system 200, as shown in FIG. 7, is used to analyze the voltage waveform of the power line and determine the most favorable time to start the opening and closing of the circuit breaker 4 in order to convert the transient current and Outbursts are reduced to a minimum. Printed by the Ministry of Economic Affairs_Yangti Quasi-Bureau of Consumer Cooperatives-1-11--I · Each current circuit breaker 4 has a defined possibility of an arc jumping from one contact to another There are many factors that affect the dielectric strength, including: the medium inside the circuit breaker 4 and the distance between the two contacts 71, 72. Figure 6 (refer to line C in FIG. 6) shows the distance between the two contacts When approaching, the dielectric strength between the two contacts 7 1, 7 2 will change or decrease with time. Under ideal conditions, the dielectric strength between the two contacts should be infinite, until -13- This paper size is suitable for China Kneading (CNS) eight 4 ^ grid (2Ι〇χ297mm) V. Description of the invention (H) A7 B7 The Central Standards Bureau of the Ministry of Economic Affairs Male Workers ’Consumer Cooperative printed two contacts 71, 72-once closed (refer to the figure) 6 of 3). In fact, the dielectric The mass declines obliquely, and decreases rapidly when the two contacts are close to each other (refer to line C in circle 6). If the slope of the dielectric decline is large enough, and the dielectric strength remains greater than the voltage of the waveform, it can be eliminated or large Amplify arcing and transient current generation. Another factor that needs to be considered during the operation of circuit breaker 4 is the relative speed between the two contacts during opening and closing. If the movement of the two contacts is slow, the dielectric will drop. The slope is small, and there is a possibility of arcing. On the contrary, if the two contacts move too fast, especially when closing, the two contacts may bounce apart and cause unnecessary arcing and transient current. Therefore, each application of the device has its unique ideal motion profile. Fig. 8 shows an example of the movement profile, in which the abscissa represents the position of the movable contact 71, and the vertical position k represents the speed at which the contact 71 moves. The zero point on the abscissa represents the starting point or maximum open position of contact 71, and point X represents the closed position when contact 7 is positively contacting stationary contact 7 2. At zero, when there is a close command, the speed is zero. The speed will increase to the maximum speed vmax as soon as possible. The speed remains at Vmax for as long as possible, but then when the contact point X of the contact approaches, the speed is reduced to reduce the jump to the minimum. During the opening process, the sport profile is also important to avoid double strikes or secondary arcing within a short time after opening. If the separation speed of the two contacts is too slow, or the voltage at a certain point is too high, an over-arc may occur. The outline of the movement required for the opening and closing sequence can be determined by those skilled in the art and the program is designed in the circuit 200 in advance. Refer to Figure 12 to learn more about the open operation sequence of capacitor switch applications. 14-The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) (please read the precautions on the back before filling this page). Order ΎA7 B7 printed by the employee consumer cooperative of the Zhongshang Bureau of Standards of the Ministry of Economy V. Description of invention (12).囷 12 is the opening sequence of the system including the capacitor bank. Line 4 shows the voltage potential after the capacitor is fully charged. The switch begins to open at point 2 and an arc begins to form. However, at this point, the current system is decaying and the arc is eliminated at point 3 when the current is zero. The system voltage reaches its peak value at this time, but the voltage at the contact end is small because the capacitor bank has been charged close to the system's peak value. When the system voltage begins to drop, the voltage on the capacitor bank remains high, resulting in an increase in the voltage at the contact terminals. The two contacts must be separated with sufficient acceleration to allow the dielectric to rise at a faster rate than the voltage between the increased two contacts to avoid Ji strike and secondary arcing. The motion control function can be completed by software installed in the microprocessor / microcontroller, or by adding a dedicated motion control chip that interfaces with the microprocessor. Write a special motion profile into a program and store it in the memory, and the memory Zhao is a separate external motion control circuit 226. The electrical type can be erased and read only the memory (EEPROM) chip, or the microprocessor / micro A memory on the main board of the controller. The motion control circuit 226 is connected to a rhythm device (encoder) and a pulse width modulation (PWM) circuit 228. The pulse width modulation circuit 228 controls the current applied to the voice coil actuator 8. Since the force driving the voice coil actuator 8 is proportional to the current applied to the voice coil actuator 8, the speed of the actuator 6 (and the movable contact 71) can be adjusted by the pulse width modulation circuit (pwM) 228 control. Therefore, the voice coil actuator 8 is controlled by a closed loop feedback system, and the closed loop feedback system includes a position encoder 14 for outputting the position information of the actuator 8 to the motion control circuit 226. The motion control circuit 226 compares the actual position of the actuator 8 with the ideal motion profile preprogrammed in the motion control circuit 226. According to the actual position and the ideal motion profile ratio I'-15-I paper scale is applicable to the Chinese National Standard (CMS) Α4 specification (210Χ297 mm) ^--I · ni · I--11 I ϊ ^ — nfl—4 I . * N. US. (Please read the notes on the back before filling this page)

, IT 315477 A7 B7 5. Description of the invention (13 The results obtained by the Ministry of Economic Affairs, Central Bureau of Standards and Labor under the Consumer Cooperative Printed "The voice coil actuator 8 can be controlled by the pulse width modulation circuit (pwm) 228, so that The movement can be close to the desired ideal movement. The control of the actuator can be further improved by the circuits 204, 206, 208 that monitor the actual electrical I waveform of the power line to be disconnected. For example, in special applications, it can be determined The contacts 71 and 72 must be opened or closed within 1 millisecond of the zero crossing and point A (refer to FIG. 6) of the voltage signal v (t). The ideal motion profile preprogrammed in the motion control circuit 226 includes From the time when a start signal is sent to the time when the contacts 71 and 72 are closed, the total reaction and the total running time of the actuator 8. If the ideal motion profile indicates that after the start signal, the reaction required to close the contact and The running time is 7 milliseconds, the microprocessor analyzes the actual voltage waveform of the power line to be disconnected, and determines a clear time between the zero points at which the start signal should be issued. Circuits 204, 206, and 208 first establish the actual cycle And the final length of time between zero crossings. After the zero crossing, the control circuit 200 activates the voice coil to trigger the voice coil when the actual time between the zero crossings minus the reaction and operating time of the actuator 8 The actuator 8 works. Therefore, if the actual voltage waveform indicates that the zero-crossing is 83 milliseconds, and the actuator response and running time is 7 milliseconds, the open sequence is started 1_3 microseconds after the zero-crossing. In the specific example of the system, the actual time between the zero parent fork is 8.33 milliseconds, and the startup time is calculated according to this assumption. In some specific examples of the present invention, a plurality of motion profiles can be pre-programmed in the circuit Within 200, and input by the operator to select the appropriate motion profile. Once this sequence is activated, the encoder 14 makes the actual movement of the monitoring actuator 8-16-M Zhang scale applicable to the Chinese National Standard (CNS) A ^ i7l ^ X297 Mm (please read the precautions on the back first and then fill in this to buy) -installed---3 ^-• 丨 --- printed A7 by the employee consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs --------- _ —__ B7 Fifth, the outline of invention ('• and the ideal sport Comparison. The current applied to the actuator 8 is adjusted by the pulse width modulation circuit (FWM) 228 based on the comparison of the actual movement of the actuator 8 with the ideal movement profile. The display 9 can be used in the present invention Another specific example of the voice coil actuator 308 of any specific example. The voice coil actuator 308 includes a ring-shaped magnet 31〇, preferably 4 ceramic magnets. Magnet 3 10 and a bottom pole piece 3 2 and a top pole piece 314 wrapped together. These pole pieces are made of ferromagnetic material, for example, iron or steel, etc. The pole pieces 312, 314 contain a central hole 316, and a lever 318 penetrates the hole 316 while extending. The joystick 3-8 is supported in the pole pieces 312, 314 by a self-lubricating polymer bearing 320 (such as IGUS (trademark) bearing 320). There is an aluminum plate 328 fixed to the sample 318. At the edge of the aluminum plate 328, there is a coil 330 extending from the aluminum plate 328 into the air groove 332 formed between the bottom pole piece 312 and the magnet 31o. The coil 330 may be formed by flattening the metal wire so as to maximize the number of turns of the winding connected in the air groove 332. The actuator 308 may be driven by a 24 volt battery or any other suitable power source, including AC / DC automatic converters. In order to latch the device in a specific position, the joystick 318 may include a groove 320 'with a ball 322 (refer to FIG. 10) inside. The spring 324 and the cap 326 force the ball 322 into the groove 320 to keep the guard 318 in a fixed position. The guard 318 can detach from the ball 322 'when a certain force is applied, and the magnitude of this force depends on the strength of the spring 324. In order to ensure a good connection between the two contacts 71, 72, the spring 340 or other force can be applied to the rod 6 (or 3 18), so that the contact 7 1 is at a predetermined -17 Standard (CNS) Α4 specification (210X297 mm) —i ^ · · 丨:-^ ----—— (please read the precautions on the back before filling this page)

、 1T brigade A7 _______B7 V. Description of the invention (15) Power, for example, 60 ~ 100 pounds of force is crimped to the contact 72. The spring can be compressed by the action of the actuator. In Fig. 11, the operating levers 6, 318 may include a flange portion 342 '. The flange portion 342 is provided with a surface to which the spring 340 is crimped. Another abutment surface 344 may be provided to support the other end of spring 340. The spring 340 provides the additional advantage that it can maintain an appropriate force between the two contacts 7i, 72. For example, after repeated operations, the arc will wear the contacts. But even if there is abrasion, the two contacts are still pressed against each other due to the elastic force. In addition, the application of this elastic force can reduce the resistance of the two contacts in the closed state, thus reducing heat loss. If the contact wears out, the joystick 6, 318 must move a greater distance to compensate for the wear. Since the position detector 14 can sense the distance moved by the joystick 6,318, the system can be programmed to illuminate the maintenance signal 216 or other display to show that the contacts 71, 72 have been excessively worn. The system can also modify its motion profile to allow the increment of this stroke. Although the above is only described in detail with the best examples, it should be noted that various modifications and changes can be made according to the above disclosure and within the scope of the attached patent application without departing from the spirit and scope of the present invention . --- “-^ ---- ^ — 装 — (Poetry first read the phonetic notation on the back? Matters and then fill out this page) Order the printed version of the Beigong Consumer Cooperative of the Central Rubbing and Accreditation Bureau of the Ministry of Economy ____ -18- This paper size Applicable towel ϋϋ family start ^ CNS) Μ specification (21Qx 297 public)

Claims (1)

Ιϋι Item member expressly stated that the annual D-hearing of the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative Printing Policy> Sanya has I changed whether the qualitative content is approved _2Eg Patent Application No. 85110432 _ Chinese Shenqing Patent scope correction This (Patented Patent Issued in November 1989 1. A current circuit breaker, including:-The current breaking device 'has at least one movable contact; an actuator, connected to the movable contact of the current circuit breaker Detection 11 'Use 〃 to monitor the movement of the actuated E ::' and a control system 'connected to the feedback detection 1 Becker to be received by the feedback detector: information on the movement of the actuator, based on the Information to control the movement of the actuator "2. The current circuit breaker according to item 丨 of the patent application scope, which also includes: a device for storing the desired ideal motion profile of the actuator; and moving the actuator Μ A device that controls the movement of the actuator based on the comparison between the movement of the actuator and the ideal movement profile. 3. The device that controls the movement of the actuator according to the comparison between the movement of the actuator and the ideal movement profile. , Which also includes: a detector for sensing the voltage waveform of the power line to be switched, and providing information about the voltage waveform to the control system; where 'the control system is based on the relevant voltage waveform information to control The movement of the actuator 4. The current circuit breaker according to item 2 of the patent application scope, which also includes: a detector to sense the voltage waveform of the power line to be disconnected and provide the control system with the relevant voltage Waveform information; wherein, the control system controls the movement of the actuator based on the relevant voltage waveform information. 5_ According to the patent application scope item 1, the actuator is a voice coil actuator. The paper scale is applicable to the Chinese National Standard (CNS) A4 wash grid (210X297 mm) Hi n ^^^ 1 m ^ i— i dn m. -I lx— ^^^ 1 —Til (please read the note item on the back first (Fill in this page again) The scope of patent application A8 B8 C8 D8 \ Printed by the Ministry of Interest 4-Central Construction Bureau βζ 工 消 f Cooperative Society ^ 6. According to the patent application scope item 1, the current circuit breaker is a linear potentiometer. 7. According to the first patent scope The current circuit breaker device in item 1 is a vacuum circuit breaker. 8. The current circuit breaker wave breaking device according to item 1 of the patent application scope is biased towards a closed position. 9. According to the current breaker in item 1 of the patent application scope, It also includes a latch to inhibit the movement of the actuator. 10. The current circuit breaker according to item 4 of the patent application, where the actuator is a voice coil actuator, and the feedback detector is a linear potentiometer ; The current breaking device is a vacuum circuit breaker; and another spring is included to bias the current breaking device to a closed position: and a latch 'to suppress the movement of the actuator. 11. The current circuit breaker according to item 1 of the patent application park includes: a detector to sense the current waveform of the power line to be switched and provide information about the current waveform to the control system; Among them, the control system controls the movement of the actuator based on the current waveform information. 12. A type of circuit breaker is used to interrupt the current in the power line, including: a current breaking device with at least one movable contact; an actuator, a movable contact connected to the current circuit breaker; a detector to sense Measure the voltage or current waveform of the power line to be disconnected; and a control system connected to the detector to receive feedback from the detector to detect the current disconnection. It also includes a power_________ -(Please read the precautions on the back before filling in this page) 奵 2- This paper method is used in Chinese National Standard (CNS) A4 (210X297mm) 6. Scope of patent application The information of the oxygen-related waveform printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs and controls the movement of the actuator based on the waveform. 13. The circuit breaker according to item 12 of the patent application scope also includes a device for storing the required motion profile of the actuator; wherein, the control system also controls the movement of the actuator according to the required motion profile . 14. The circuit breaker according to item 2 of the patent application scope, wherein the actuator is a voice coil actuator; the feedback detector is a linear potentiometer; and the current interrupting device is a vacuum circuit breaker. 15. The circuit breaker according to item 12 of the patent application scope further includes a spring to bias the current breaking device to a closed position; and a latch to suppress the movement of the actuator. 16. A method of controlling a current circuit breaker with an actuator, comprising the following steps: monitoring the movement of the actuator with a feedback detector; providing the result of the movement monitoring to the control system to control the actuator Movement; and controlling the movement of the actuator based on the results provided to the control system. 17. The method according to item 16 of the patent application scope also includes the following steps: storing the required motion profile of the actuator movement; comparing the monitoring result with the required motion profile; and also controlling the Actuator movement. 18. According to the method of claim 16 of the patent application scope, it also includes the following steps: sensing the voltage waveform in the power line to be disconnected; providing the results of the voltage waveform sensing to the control system, and according to the paper provided to -3- The standard is applicable to China National Standards (CNS) A4 (210 X 297 mm) (please read the note on the back + ^ item and then fill out this page) Zuanquan 8 8 8 8 ABCD fe Patent scope control system voltage waveform sense Measure the results to control the movement of the actuator with the control system. 19. The method according to item 16 of the patent application scope includes the following steps: sensing the current waveform in the power line to be disconnected; providing the result of current waveform sensing to the control system, and according to the current waveform sensing provided to the control system Measure the results to control the movement of the actuator with the control system. 20. A method of controlling a current circuit breaker with an actuator, comprising the following steps: sensing the voltage or current waveform in the power line to be disconnected; providing the result of waveform sensing to the control system to control the actuator Movement; and according to the results provided to the control system and the pre-macro actuator quick skin profile, the control system controls the movement of the actuator. -II: ^^ 1 I-1— II-· --- · I I 'circle I m. N L ^ TV ·-»-(Jing first read the note on the back ^' item to save and fill out this page) Central Ministry of Economic Affairs The size of the oxygen printed paper printed by the Beigong Consumer Industry Cooperative Society is applicable to the Chinese National Standard (CNS) A4 (210X297mm)