TW202405842A - An improved device for automatically toggle interlocking modules with three switches - Google Patents

Abstract

The present invention is an improved device for the automatic toggle interlocking module of three switches, which can improve the limitation of conventional automatic toggel switches that the interlocking between circuit breakers must be of the same brand and size. The improved device of the three switches automatically switches the interlocking module, which has the function of locking and closing protection and the function of electric closing. Using the detection of the power status and the automatic blocking/closing function of the circuit breaker, the electrical and mechanical functional interlocking between the circuit breakers can be performed, and the long-distance interlocking can be performed across the switchpanel. It is easy to install and economical. Electrical safety, suitable for applications that are not limited by distance, to avoid malfunction or no action due to electrical faults. The main functions are (1) to prevent the electrical and mechanical interlocking of three circuit breakers at the same time, (2) the application of electrical and mechanical interlocking between multiple circuit breakers, and to provide an interlock with a simple structure and easy installation. The device can prevent the occurrence of malfunction and improve the safety performance of electrical equipment.

Description

An improved device for automatically switching interlocking modules of three switches

The present invention is an improved device for automatically switching interlocking modules of three switches. It can improve the conventional automatic switch. The interlocking mode between circuit breakers is not limited by the manufacturer's specifications and sizes. The three switches automatically switch interlocking modules. The improved device of the group has a protection locking opening and closing function and an electric closing function. By detecting the power status of the power circuit and the automatic locking/closing function of the circuit breaker, the circuit breakers can perform electrical and mechanical functional interlocking with each other, and can Long-distance interlocking across disks makes it easy to install and economical, improves the safety of electricity, and is suitable for applications not limited by distance to avoid malfunction or non-operation due to electrical faults. The main functions of this invention are three It prevents electrical and mechanical interlocking between circuit breakers when three circuit breakers are put into use at the same time. It provides an interlocking device with a simple structure and easy installation to prevent malfunctions and improve the safety performance of electrical equipment.

The interlocking method between circuit breakers in automatic switching switches is commonly used by world-renowned brands such as Schneider, Siemens, etc. There is generally a steel cable between circuit breakers, and between the two (circuit breaker) The mechanisms on the back are locked (the actuating mechanism of the circuit breaker) to interlock with each other to achieve an interlocking relationship. Therefore, there are special requirements in specifications, models, and dimensions. If they are not of the same model and specification, the interlocking function cannot be performed and the entire set must be replaced. This cannot be used effectively, which is a common problem in the market today.

In the current technology, there are situations where interlocking between circuit breakers is necessary. In power circuit systems, there are interlocking requirements for power supply systems with more than two circuits, such as power interlocking between dual power circuits... In order to consider the reliability and stability of the power supply quality, the above power loop system adopts multi-circuit power supply, so there must be an interlocking mechanism between circuit breakers. At present, automatic transfer switches (ATS) are generally used in the market as interlocking control panels. The automatic transfer switches are large in size, expensive, and take a long time to manufacture. Moreover, the circuit breakers of the device must be of the same brand, specification, and size. , with the same accessories, resulting in considerable restrictions on actual use, and no changes can be made. Therefore, this problem has never been solved, especially when the load changes or the equipment changes size, the existing equipment cannot be used, the capacity of the equipment cannot be changed, the old and new models cannot be matched, and the on-site space cannot be matched... This will cause many problems. The above difficulties cannot be overcome if there are three circuit breakers. Therefore, an improved device for automatically switching interlocking modules of three switches according to the present invention can be used to solve the above problems.

And when the three circuit breakers must be in the locking state, that is, the three circuit breakers have the function of interlocking Tie, that is, the three circuit breakers can only allow two of them to be closed and ON at the same time. If the three switches of the present invention can be used to automatically switch to each other. The improved device of the locking module can solve the long-standing problem, and since the circuit breaker itself can automatically perform the locking/closing function by detecting the power status of the power circuit, it can improve the reliability of its power consumption, increase the convenience of use and safety. The present invention also improves the inconvenience and shortcomings of the patented M318184 fuseless switch locking device, which can only lock the trip position, although it meets the requirements of a locking device that must be able to lock when power is off during maintenance. requirements, but it cannot be applied to other situations with different functional requirements mentioned above and functions that must be interlocked. Can and cannot make the circuit breaker automatically lock/close. The invention also improves the problems that may be caused by the electrical locking function in the locking part of the patented improvement of the switch safety interlocking method. Such as power outage, disconnection, etc. may cause malfunction or non-operation. In the conventional art, countries around the world generally use traditional locks for interlocking methods. Different methods require different locks and components, resulting in multiple implementation styles of safety locks, and there is no actual mechanical control of the lock function. Identification, this will cause an increase in production costs, increase the burden on product management and trouble the owners. In the conventional art, for interlocking devices in various countries around the world, professional manufacturers produce a kind of lockset, commonly known as Kirkey, which uses the key in the lock to do the locking work. If there are two locks, only To put a key, the other lock must have a key. Only when the key is pulled out can it be placed on the other lock and controlled by the key. In the same way, when there are three locks, two keys are attached, so that the lock function can be achieved by controlling the keys. The advantage is that it has a simple general structure and is easy to install. The disadvantage is that when the spare key appears, it will cause malfunctions and even work safety hazards. The above problems have existed for a long time. Domestic and foreign manufacturers have been unable to properly solve these problems to improve the safety of electrical equipment and operations. Generally, the sizes of circuit breakers for mechanical interlock devices must be the same. If they are different sizes, they cannot be compatible and universal. Specifications Restricted, ATS also has the same problem. Because of the above problems, it cannot be changed and the flexibility is limited. There are problems with mechanical devices, locks, keys, etc. that are inconvenient to manage. KerKey uses a key to manage the circuit breaker, so there is also the possibility of malfunction. There is no perfect solution to the above problems, especially the fact that the circuit breaker cannot be automatically turned on and off electrically.

In the conventional art, the interlocking method between multiple circuit breakers is limited by the limitations of the circuit breaker equipment itself. For example, between two different switches, air circuit breaker and molded case circuit breaker, it is impossible to mechanically interlock the circuit breakers. The function of interlocking actions is difficult to implement in practice. Therefore, the current approach is to use programmable controller PLC control to achieve the above functional requirements. but The programmable controller PLC itself requires power supply. If it is disabled, it may not be able to operate. Moreover, the electronic method is afraid of malfunction and cannot perform the interlocking function between circuit breakers like the mechanical method. When performing this function common problems. Therefore, the use of mechanical methods to perform the interlocking function between circuit breaker panels has become marketable and urgent to improve industrial safety. The improved device of the present invention for automatically switching interlocking modules of three switches can improve this shortcoming.

三台斷路器之間防止三台同時投入的電氣與機械性互鎖、

多台斷路器之間的電氣與機械性互鎖應用。提供一種構造簡單、安裝方便的開關互鎖裝置，包含不同類型規格的斷路器如空氣斷路器與模殼式斷路器之間。可以全方位的使用在上述各種功能需求的解決方案，並且利用偵測電力迴路的狀態達到確實可靠的電氣與機械性方面相互結合的做法，防止誤動作的狀況產生，可以提高電氣設備使用上的安全性能。 The main purpose of the present invention is to provide an interlocking device used between circuit breakers, a mechanical interlocking device that can achieve the functions of electrical and mechanical interlocking, and is especially suitable for long-distance applications to avoid electrical problems. A permanent malfunction may cause malfunction or non-operation. The main thing that can be solved is

Electrical and mechanical interlocking between three circuit breakers to prevent three circuit breakers from being turned on at the same time,

Electrical and mechanical interlocking applications between multiple circuit breakers. A switch interlocking device with a simple structure and easy installation is provided, which includes circuit breakers of different types and specifications, such as air circuit breakers and molded case circuit breakers. It can be used in a full range of solutions for the various functional requirements mentioned above, and uses the detection of the status of the power circuit to achieve a reliable combination of electrical and mechanical aspects to prevent malfunctions and improve the safety of electrical equipment. performance.

In order to achieve the above purpose, the present invention is an improved device for an automatic switching interlocking module of three switches. The electrical and mechanical interlocking must be reliable and safe. It must be able to be used in any specification and can be arbitrarily interlocked without causing malfunction, and It is not limited by distance. It is best to have mechanical and electrical contacts and meet the requirements of permanent components to meet the specifications. If it can solve the problem that any specification can be used, the product can be standardized and standardized. This problem has always been It cannot be effectively solved in the power system. In view of the insurmountable problems and inconvenience in use of the previous technology, there is a demand for an improved device for automatically switching interlocking modules of three switches according to the present invention.

In order to achieve the above object, the present invention is an improved device for automatically switching interlocking modules of three switches, which can improve the interlocking method of conventional circuit breaker panels, such as using an automatic transfer switch (ATS) to achieve an interlocking method of two pairs of switches. ; Or use sheet metal or steel cable interlocking. Only two units of the same brand, specification, and size can interlock and will destroy the circuit breaker structure. Three units cannot interlock; and they must be in the same space. . The invention is not limited by the manufacturer's specifications, size, etc. The circuit breaker panel has a self-protection locking function and can automatically close the circuit breaker. The circuit breaker panel can perform electrical and mechanical functional interlocking with each other and is not subject to any restrictions. The space is limited and can be interlocked across long distances. It is easy to install and economical, and improves the safety of electricity without problems such as different types of circuit breakers or different numbers of poles. The purpose of solving the problem, in addition to novelty and progress, the focus of the present invention must also consider the marketability issue. In addition to the functionality of the solution, the marketability issue is whether it is in a suitable position or can comply with world regulations such as NEC and IEC. , JIS, BS, CCC, CNS... etc., as mentioned above, the purpose and functionality that can be achieved by the methods and means of this solution can all meet the requirements of the specification, so that the product will meet the market demand.

In order to achieve the above purpose, an improved device for automatically switching interlocking modules of three switches is electrically connected to a power circuit, and the power circuit has at least three circuit breakers with electric operators, and the three circuit breakers are equipped with electric operators. Each circuit breaker includes: a circuit breaker and an electric operator. The circuit breaker is connected in parallel to the power circuit. The circuit breaker is equipped with a tripping mechanism, an operating handle, a closing and opening device, and an auxiliary contact. The electric circuit breaker The operator is connected to the operating handle to actuate the circuit breaker to close or open; the three-switch automatic locking switching device module to prevent malfunction, each of which is equipped with an electric operator circuit breaker to prevent malfunction and the automatic locking module, includes: a power circuit status A detection device, a power circuit fault automatic locking device, and a power circuit automatic closing device; the power circuit status detection device includes: a control circuit component for detecting the voltage of the power supply side and load side contacts of the switch signal state, there is an electronic circuit built into the control circuit component. The electronic circuit is electrically connected to the power side and the load side of the circuit breaker. According to the phase sequence, a resistor voltage dividing rectifier element is connected in series with the ground terminal or has a A plurality of voltage dividing rectifier components with resistors connected in series are used to sense the voltage signals on the power side and the load side of the circuit breaker, and send the status signals of the power and no power in each phase sequence of the electronic circuit to the control circuit component. Key microprocessor, the key program in the microprocessor determines and calculates the internal contact status of the circuit breaker based on the detected voltage signals of each phase sequence on the power side and load side of the circuit breaker, and determines the status of the circuit breaker. The status of each phase contact inside the circuit breaker is whether the conduction is closed or the open circuit is open, and the abnormal status of the power supply side and the load side in the power circuit is determined, such as phase loss, reverse phase, reverse phase power supply, high voltage power, low voltage power, etc.; When the power circuit fault automatic locking device determines the power circuit fault status based on the power circuit status detection device, the power circuit fault automatic locking device has a linkage mechanism that can lock the tripping mechanism inside the circuit breaker or disconnect the attached electric circuit. The circuit loop closed by the operator circuit breaker is interconnected with the tripping mechanism inside the circuit breaker to achieve a locking function; when the automatic closing device of the electric circuit determines that the electric circuit is in a normal state according to the electric circuit status detection device, the attached electric circuit breaker The closed circuit loop of the operator circuit breaker is turned on, allowing the electric operator mechanism to connect to the transmission mechanism to drive the circuit breaker operating handle to close the circuit breaker; the electric operator circuit breaker is equipped with an automatic locking module to prevent malfunction, and when the power circuit status is detected Device, when the power side terminal detects out-of-phase or reversed-phase power or other faulty power supply through the internal voltage sensing device, or when the load-side terminal detects reversed phase power through the internal voltage sensing device, the power circuit The internal circuit of the status detection device sends a message to drive the electric motor operator device to open and close the circuit breaker. The locking device activates the lock. When the power status detection device detects the internal voltage sensing device at the load side, When the no-voltage state is reached, and the normal state of the power circuit is detected through the internal voltage sensing device at the power supply side, the internal circuit of the power circuit status detection device sends a message to release the power return of the circuit breaker. A circuit fault automatic locking device and electrically drives the electric operator device to close the circuit breaker, so as to achieve the function of automatically locking the circuit breaker when the power circuit fails, and automatically closing and energizing the circuit breaker when the power circuit is normal; the three-unit An improved device for automatic switch interlocking module, in which two circuit breakers are used when the power status detection device detects out-of-phase or reverse-phase power supply or other faulty power supply through the internal voltage sensing device at the side of the power supply, or when the When the load side terminal detects the reverse-phase power supply through the internal voltage sensing device, the internal circuit of the power status detection device sends a message to drive the electric device to turn on and off the circuit breaker. The locking device activates and locks. When the power status detection device When the indicator device detects a no-voltage state through the internal voltage sensing device at the load side, the internal circuit of the power status indicator device sends a message to release the latching device of the circuit breaker and drive the electric device to close the circuit breaker to achieve The interlocking function of the two circuit breakers is that one circuit breaker serves as a tie switch and is electrically connected to the load side of the other two circuit breakers. When the power status detection device is connected to the power supply side through the internal voltage sensor, When the detection device detects out-of-phase or reverse-phase power or other faulty power, or when the load side detects reverse-phase power through the internal voltage sensing device, the internal circuit of the power status detection device sends a message to drive the electric motor. The device causes the circuit breaker to open and close, and the locking device activates and locks. When the power status detection device detects a no-voltage state at the power supply side end or the load side end through the internal voltage sensing device, the power status detection device The internal circuit sends a message to release the locking device of the circuit breaker and drives the electric device to close the circuit breaker to achieve the interlocking function of the three circuit breakers.

1: Improved device for automatically switching interlocking modules of three switches

31: The first module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

32: The second module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

33: The third module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

10: Equipped with electric operator circuit breaker to prevent malfunction and automatic locking module

11: Attached electric operator circuit breaker

12:Circuit breaker

13: Electric operator

14: Breaking out of the organization

15: Operating handle

16: Auxiliary contact

17: Power circuit status detection device

18: Automatic locking device for power circuit faults

19: Power circuit automatic closing device

20: Circuit breaker trip button switch

21:Control circuit components

22:Power side

23:Load side

24: Electronic circuits

25:Microprocessor

[Figure 1] It is a schematic diagram of an improved device of the present invention for the automatic switching interlocking module of three switches, which is equipped with an electric operator circuit breaker to prevent malfunction and an automatic locking module.

[Figure 2] is a schematic configuration diagram of the first embodiment of an improved device for automatically switching interlocking modules of three switches according to the present invention.

An improved device 1 for the automatic switching interlocking module of three switches according to the present invention is equipped with an electric operator circuit breaker and an automatic locking module 10 to prevent malfunction. An implementation example is shown in Figure 1. The module 10 is electrically connected to a power circuit, and the power circuit has at least one circuit breaker 11 with an electric operator. The circuit breaker 11 with an electric operator includes: a circuit breaker 12 and an electric operator 13, The circuit breaker 12 is connected in parallel to the power circuit. The circuit breaker 12 is equipped with a tripping mechanism 14, an operating handle 15, and an auxiliary contact 16. The electric operator 13 is connected to the operating handle 15 to operate the circuit breaker 12 to close or start. The automatic locking module 10 with an electric operator circuit breaker to prevent malfunction includes: a power circuit status detection device 17, a power circuit fault automatic locking device 18, and a power circuit automatic closing device 19; the power circuit status detection device 17 The display device 17 includes: a control circuit component 21 for detecting the voltage signal status of the power supply side 22 and load side 23 contacts of the circuit breaker 12. The control circuit component 21 is internally equipped with an electronic circuit 24, and the electronic circuit 24 is electrically Sexually connected to the power side 22 and the load side 23 of the circuit breaker 12, a resistor voltage dividing rectifier element or a voltage dividing rectifier element having a plurality of resistors connected in series between each phase sequence and the ground terminal is connected in series. It is used to sense the voltage signals of the power side 22 and the load side 23 of the circuit breaker 12, and send the status signals of each phase sequence of the electronic circuit 24 with and without power to the microprocessor 25 in the control circuit component 21. , the internal program of the microprocessor 25 determines and calculates the internal contact status of the circuit breaker 12 based on the detected voltage signals of each phase sequence of the power side 22 and the load side 23 of the circuit breaker 12. And determine the status of each phase contact inside the circuit breaker 12, whether the conduction is closed or open, and determine the abnormal status of the power supply side 22 and the load side 23 in the power circuit, such as phase loss, reverse phase, reverse phase power supply, high voltage At least one of electricity, low-voltage electricity, internal contact welding, etc.; the power circuit fault automatic locking device 18 determines the power circuit fault according to the power circuit status detection device 17 In the fault state, the power circuit fault automatic locking device 18 can be activated to lock the tripping mechanism 14 inside the circuit breaker 12, or disconnect the closed circuit loop of the circuit breaker 11 with the electric operator and connect it to the circuit breaker 12. The tripping mechanisms 14 are interconnected to achieve a locking function; when the automatic power circuit closing device 19 determines that the power circuit is in a normal state according to the power circuit status detection device 17, the circuit breaker 11 with an electric operator closes the automatic power circuit closing device. The circuit loop 19 is turned on, so that the electric operator 13 mechanism actuates the circuit breaker 12 and the operating handle 15 closes the circuit breaker 12; the automatic locking module 10 with the electric operator circuit breaker to prevent malfunction uses the power circuit status detection device 17. When the power supply side 22 terminal detects out-of-phase or reverse-phase power supply through the internal voltage sensing device, or when the load side terminal 23 detects the reverse-phase power supply or fault power supply through the internal voltage sensing device, The internal circuit device of the power circuit status detection device 17 sends a message, and is electrically connected to the power circuit fault automatic locking device 18 to cause the circuit breaker 12 to open and close, and the tripping mechanism 14 is activated and locked. When the power circuit status detection device 17 When the load side 23 terminal detects a no-voltage state through the internal voltage sensing device, and the power supply side 22 terminal detects the normal state of the power circuit through the internal voltage sensing device, the power circuit status detection device 17 The internal circuit sends a message to release the power circuit fault automatic locking device 18 with the electric operator circuit breaker automatic locking module 10 to prevent malfunction and electrically drive the electric operator 13 to link the operating handle 15 to close the circuit breaker 12, In order to achieve the automatic locking of the circuit breaker 12 when the power circuit is faulty, the automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunction causes the circuit breaker 12 to automatically close and energize through the power circuit automatic closing device 19 when the power circuit is normal. Function.

The first implementation example of an improved device 1 for automatic switching interlocking modules of three switches according to the present invention is shown in Figure 2. It is electrically connected to the power circuit. First, three identical switch modules are set up, namely the first module. The set is equipped with an electric operator circuit breaker to prevent malfunction and an automatic locking module 31. The second module is equipped with an electric operator circuit breaker to prevent malfunction and an automatic locking module 32, and the third module is equipped with an electric operator circuit breaker to prevent malfunction and an automatic locking module 33. The setting methods and operating principles of the above three modules are the first. An automatic locking module 10 with an electric operator circuit breaker to prevent malfunction is provided, which is electrically connected to a power circuit, and the power circuit has at least one electric operator circuit breaker 11, and the electric operator circuit breaker 11 includes : A circuit breaker 12 and an electric operator 13. The circuit breaker 12 is connected in parallel to the power circuit. The circuit breaker 12 is equipped with a trip mechanism 14, an operating handle 15, an auxiliary contact 16 and a circuit breaker trip button. Switch 20, the electric operator 13 is connected with the operating handle 15 to operate the circuit breaker 12 to close or open; the circuit breaker with the electric operator 10 automatically locks the module 10 to prevent malfunction, including: a power circuit status detection device 17, a power Circuit fault automatic locking device 18, an automatic power circuit closing device 19; the power circuit status detection device 17 includes: a control circuit component 21 for detecting the voltage of the power supply side 22 and load side 23 contacts of the circuit breaker 12 signal state, the control circuit component 21 is built with an electronic circuit 24. The electronic circuit 24 is electrically connected to the power side 22 and the load side 23 of the circuit breaker 12, and is connected in series with the ground terminal according to the phase sequence. The resistor voltage dividing rectification element or the voltage dividing rectification element having a plurality of resistors connected in series is used to sense the voltage signals of the power side 22 and the load side 23 of the circuit breaker 12, and sequence the phases of the electronic circuit 24 in order. The status signal of power or no power is sent to the internal microprocessor 25 of the control circuit component 21. The program of the microprocessor 25 is based on the detected power side 22 and the load side 23 of the circuit breaker 12. The presence or absence of the voltage signal in the phase sequence is used to determine and calculate the internal contact status of the circuit breaker 12, and determine the status of each phase contact inside the circuit breaker 12, whether it is conduction closed or open circuit, and determine the power supply side 22 and the power supply side 22 in the power circuit. The load side 23 is in an abnormal state, such as at least one of phase loss, reverse phase, reverse phase power supply, high voltage power, low voltage power, internal contact welding, etc.; the power circuit fault automatic locking device 18 can be externally installed on the load side 23. Above the circuit breaker trip button switch 20, according to the instructions of the power circuit status detection device 17, When a fault is detected, the power circuit fault automatic locking device 18 is activated to lock the circuit breaker trip button switch 20 to link the trip mechanism 14 inside the circuit breaker 12, or to disconnect the circuit breaker 11 with an electric operator. The closed circuit loop achieves the locking function, or the power circuit fault automatic locking device 18 is activated to lock the tripping mechanism 14 inside the circuit breaker 12 to achieve the locking function; the power loop automatic closing device 19 depends on the power loop state. When the detection device 17 determines that the power circuit is in a normal state, it first releases the power circuit fault automatic locking device 18, and the electric operator circuit breaker 11 closes the circuit of the power circuit automatic closing device 19 to conduct the electric operator 13 mechanism. Connect and activate the operating handle 15 of the circuit breaker 12 to close the circuit breaker 12; the circuit breaker with electric operator and the automatic locking module 10 to prevent misoperation can use the power circuit status detection device 17 to pass the internal voltage sensor from the power side 22 end. When the detection device detects a faulty power supply such as out-of-phase or reverse-phase power, or when the load side 23 detects a reverse-phase power supply or a faulty power supply through the internal voltage sensing device, the internal circuit of the power loop status detection device 17 sends A message is electrically connected to the power circuit fault automatic locking device 18 to cause the circuit breaker 12 to open and close, and the tripping mechanism 14 is activated and locked. When the power circuit status detection device 17 detects the internal voltage sensing device at the load side 23, When a no-voltage state is detected, and the normal state of the power circuit is detected through the internal voltage sensing device at the power supply side 22, the internal circuit of the power circuit status detection device 17 sends a message to release the circuit breaker with an electric operator. The power circuit fault automatic locking device 18 of the automatic locking module 10 to prevent malfunctions electrically drives the electric operator 13 to link the operating handle 15 to close the circuit breaker 12, so that the circuit breaker 12 automatically locks when the power circuit fails. When the power circuit is normal, it should have the function of the electric operator circuit breaker to prevent malfunction and the automatic locking module 10 to automatically close and energize the circuit breaker 12 through the power circuit automatic closing device 19; the three-switch automatic switching interlocking module Improved device 1, in which the first module is equipped with an electric operator circuit breaker to prevent malfunction and the automatic locking module 31 and the second module is equipped with an electric operator. The power circuit status detection device 17 inside the automatic locking module 32 of the operator circuit breaker to prevent malfunction detects out-of-phase or reverse-phase power supply or other faulty power supply through the internal control circuit component 21 on the power side 22, or on the power supply side 22. When the load side 23 detects the reverse-phase power supply through the power loop status detection device 17 of the internal control circuit assembly 21, the internal circuit of the power loop status detection device 17 sends a message to drive the power loop fault automatic locking device 18. The circuit breaker 12 is opened and the power circuit fault automatic locking device 18 is activated and locked. When the power circuit status detection device 17 detects the power circuit status detection device 17 of the internal control circuit component 21 at the load side 23 When there is no voltage, the internal circuit of the power circuit status detection device 17 sends a message to release the locking device of the electric operator circuit breaker automatic locking module 10 to prevent malfunction and drive the power circuit automatic closing device 19 to close the circuit breaker. 12. In order to achieve the interlocking function of two circuit breakers with the automatic locking module 10 of the electric operator circuit breaker to prevent malfunction, the third module is equipped with the automatic locking module 33 of the electric operator circuit breaker to prevent malfunction as a contact switch. When The power loop status detection device 17 detects a faulty power source such as out-of-phase or reverse-phase power supply through the power loop status detection device 17 of the internal control circuit component 21 at the power side 22 end, or detects a faulty power source such as out-of-phase or reverse-phase power supply at the load side 23 end via the power loop status detection device 17 of the internal control circuit component 21. When the power circuit status detection device 17 of the internal control circuit assembly 21 detects the reverse-phase power supply, the internal circuit of the power circuit status detection device 17 sends a message to drive the power circuit fault automatic locking device 18 to open the circuit breaker 12 When the power circuit fault automatic locking device 18 is disconnected, the circuit breaker 12 of the third module equipped with an electric operator circuit breaker to prevent malfunction automatic locking module 33 is powered off and locked. When the power circuit status detection device 17 is in the When the power supply side 22 end or the load side 23 end detects a no-voltage state through the power loop status detection device 17 of the internal control circuit assembly 21, the internal circuit of the power loop status detection device 17 sends a message to release the third The module is equipped with an electric operator circuit breaker to prevent malfunction and automatically locks the circuit breaker 12 of the module 33 and drives the power circuit to automatically close. The device 19 closes the circuit breaker 12 to achieve the interlocking function of the three switches of the improved device 1 of the automatic switching interlock module for the three circuit breakers.

In summary, the improved device of the automatic switching interlocking module of three switches of the present invention further improves the stability and safety of the circuit breaker panel in the power supply system, and has great industrial applicability. Furthermore, after checking the relevant products on the market and approved patent announcements, we found no products with the same essential technical features as the present invention, which also meet the statutory patent application requirements of novelty and advancement. To file a patent application in accordance with the law, we sincerely request the review committee to grant the patent to this case as soon as possible to ensure the rights and interests of the applicant. However, what is disclosed in this case is only a preferred embodiment of the invention and cannot be used to limit the scope of rights of the invention. Any equivalent changes or modifications made in accordance with the spirit of the invention are still covered by the patent application scope of the invention. middle.

1: Improved device for automatically switching interlocking modules of three switches

31: The first module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

32: The second module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

33: The third module is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module

10: Equipped with electric operator circuit breaker to prevent malfunction and automatic locking module

11: Attached electric operator circuit breaker

12:Circuit breaker

13: Electric operator

14: Breaking out of the organization

15: Operating handle

16: Auxiliary contact

17: Power circuit status detection device

18: Automatic locking device for power circuit faults

19: Power circuit automatic closing device

20: Circuit breaker trip button switch

21:Control circuit components

22:Power side

23:Load side

24: Electronic circuits

25:Microprocessor

Claims (1)

A three-switch automatic locking switching device module to prevent malfunction, It is electrically connected to a power circuit, and the power circuit has at least three circuit breakers with electric operators. Each of the three circuit breakers with electric operators includes: a circuit breaker and an electric operator, and the circuit breakers are Connected to the power circuit, the circuit breaker is equipped with a tripping mechanism, an operating handle, a closing and opening device, and an auxiliary contact. The electric operator is connected to the operating handle to operate the circuit breaker to close or open; This three-switch automatic locking switching device module to prevent malfunction, each equipped with an electric operator circuit breaker automatic locking module to prevent malfunction, includes: a power circuit status detection device, a power circuit fault automatic locking device, and a power circuit breaker. Automatic loop closing device; The power circuit status detection device includes: a control circuit component for detecting the voltage signal status of the power supply side and load side contacts of the switch. An electronic circuit is built into the control circuit component, and the electronic circuit is electrically connected to the circuit breaker. On the power side and load side of the circuit breaker, a resistor voltage-dividing rectifier element or a voltage-dividing rectifier element with multiple resistors connected in series is connected in series between each phase sequence and the ground terminal to sense the power side and the load side of the circuit breaker. The voltage signal on the load side sends the status signal of each phase sequence of the electronic circuit with or without electricity to the microprocessor inside the control circuit component. The program in the microprocessor is based on the circuit breaker being tested. The presence or absence of the voltage signal of each phase sequence on the power side and the load side is used to determine and calculate the internal contact status of the circuit breaker, and determine whether the internal phase contact status of the circuit breaker is closed or open, and determine the power supply in the power circuit. Side and load side abnormal conditions, such as phase loss, reverse phase, reverse phase power supply, high voltage power, low voltage power, etc.; When the power circuit fault automatic locking device determines the power circuit fault status according to the power circuit status detection device, the power circuit fault automatic locking device has a linkage mechanism that can lock the tripping mechanism inside the circuit breaker or disconnect the attachment. The electric operator circuit breaker closes the circuit loop and disconnects the The tripping mechanisms inside the circuit breaker are linked to each other to achieve the locking function; When the power circuit automatic closing device determines that the power circuit is in a normal state according to the power circuit status detection device, the circuit breaker closed by the electric operator is turned on, allowing the electric operator mechanism to connect to the transmission mechanism to drive the circuit breaker operating handle. The circuit breaker is closed; The automatic locking module with an electric operator circuit breaker to prevent malfunction, when the power circuit status detection device detects out-of-phase or reverse-phase power supply or other faulty power supply through the internal voltage sensing device at the side of the power supply, or when the When the load side terminal detects the reverse power supply through the internal voltage sensing device, the internal circuit of the power loop status detection device sends a message to drive the electric motor operator device to open and close the circuit breaker, and the locking device activates the lock , when the power status detection device detects a no-voltage state at the load side through the internal voltage sensing device, and detects the normal state of the power circuit through the internal voltage sensing device at the power side, the power circuit The internal circuit of the status detection device sends a message to release the automatic locking device of the power circuit fault of the circuit breaker and electrically drives the electric operator device to close the circuit breaker, so that the circuit breaker automatically locks when the power circuit fails. The circuit breaker has the function of automatically closing and energizing when the power circuit is normal; This is a three-switch automatic locking switching device module to prevent malfunction. Two of the circuit breakers serve as the power status detection device. The internal voltage sensing device on the power supply side detects out-of-phase or reverse-phase power or other faulty power. When the reverse-phase power supply is detected through the internal voltage sensing device at the load side, the internal circuit of the power status detection device sends a message to drive the electric device to open and close the circuit breaker. The locking device activates and locks. When the power When the status detection device detects a no-voltage state at the load side through the internal voltage sensing device, the internal circuit of the power status detection device sends a message to release the latching device of the switch and drive the electric device to close the circuit breaker to achieve The interlocking function of the two circuit breakers is that one circuit breaker serves as a tie switch and is electrically connected to the negative terminals of the other two circuit breakers. On the load side, when the power status detection device detects out-of-phase or reverse-phase power supply or faulty power supply through the internal voltage sensing device at the power supply side terminal, or detects an out-of-phase or reverse-phase power supply or faulty power supply through the internal voltage sensing device at the load side terminal. When the power supply is reversed, the internal circuit of the power status detection device sends a message to drive the electric device to open and close the circuit breaker. The locking device activates and locks. When the power status detection device passes through the power supply side end or the load side end, When the internal voltage sensing device detects a no-voltage state, the internal circuit of the power status detection device sends a message to release the locking device of the switch and drive the electric device to close the circuit breaker to achieve the interlocking function of the three circuit breakers. .

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