TWI811020B - An automatic locking module with an electric operation for circuit breaker to prevent accidental operation - Google Patents

Abstract

This invention is an automatic locking module with an electric operation for circuit breaker to prevent accidental operation, which can improve the protection function lacking in conventional circuit breakers. It can be applied to circuit breakers of any brand, regardless of brand, size, etc., to meet the regulatory requirements of the installation rules for electrical user equipment, such as Articles 160-10. When the proposed invention detects the power fault on the power supply side or the load side of the circuit breaker, such as phase loss and reverse phase, it has a self-protection blocking function. The internal mechanisms are interlocked with each other's for electrical and mechanical functions to avoid circuit breaker to close. When the circuit loop is normal, the blocking state is released, so that the circuit breaker can be energized manually or automatically to ensure the electrical safety.

Description

An automatic locking module equipped with an electric operator circuit breaker to prevent malfunction

The present invention is equipped with an electric operator circuit breaker to prevent malfunction and automatically locks the module, which can improve the protection device that the conventional circuit breaker lacks in the power circuit. Requirements, such as Article 160-10, etc., should be equipped with an electric operator circuit breaker to prevent malfunction and automatic blocking module to detect abnormal power status on the power supply side or load side of the circuit breaker in the power circuit, such as phase loss and phase reversal When there is electricity, there is a self-protection locking function, and the internal mechanisms achieve electrical and mechanical interlocking with each other, and the mechanism for forcibly prohibiting the closing of the circuit breaker. Automatically closes and energizes to ensure electricity safety.

At present, in the case of low power supply in the power circuit system on the market, the low-power distribution equipment protection switches, such as mold case circuit breakers and low-voltage air circuit breakers, are generally configured on the low-voltage power distribution system to provide low-power power distribution systems for the lines. Short-circuit protection and electrical equipment failure protection, and the circuit breaker itself generally does not provide the self-detection function when the power of its power circuit is abnormal, so that if there is an abnormal power source, the circuit will be closed and energized. will malfunction For example, if the power supply end of the power system is out of phase, if the circuit breaker is energized and closed, the equipment will be burned, causing industrial safety accidents.

If in the power circuit, due to the long service life, when the electric equipment is replaced with a new one, for example, the wire is too old and replaced with a new one, the phase sequence may be wrongly connected at this time, resulting in a wrong phase sequence of the power supply. The circuit breaker does not have a detection mechanism for protection. When the circuit breaker is closed and energized, the motor will reverse, such as air-conditioning compressor equipment, water gate motors, and motor equipment that prohibits reverse rotation. The reverse phase will cause equipment damage.

According to Article 160-10 of the user's electrical equipment setting rules, the reasons for the lack of phase in the power system, such as social news, when a construction vehicle accidentally breaks a utility pole, resulting in disconnection in the power transmission line, phase loss The failure state occurs, and the user equipment in the feeder circuit burns out, which is enough to prove the importance of the problem of phase failure in the power circuit and the urgency of necessary improvement, or the accident of phase failure caused by accident during construction, or the protection equipment Or the failure of the electrical equipment due to outdated phases is the cause of future accidents.

The common misjudgment of construction is that when the circuit breaker is in the state of power off, it can be constructed on the load side of the circuit breaker and considered safe, but it is not, because the circuit breaker is in the state of power off. The construction on the load side of the circuit breaker is still dangerous, and there are doubts about electric shock. Because of the problem of reverse power supply (reverse power transmission), or the copper bar or cable has capacitive reactance and capacitive voltage to the ground, or the problem of reverse power transmission of energy storage circuit power, etc., it is easy to cause industrial safety accidents. If there is no power Loop status detection is more difficult to eliminate the above industrial safety accidents.

Generally speaking, for circuit breakers with electric operators, most of the power-on and power-off are performed by external operation controllers. Generally speaking, most of them are used as remote monitoring. Actuate the operating handle mechanism connected to the circuit breaker to make the circuit breaker The circuit breaker is powered on or off. A circuit breaker with an electric operator to prevent malfunction and automatic locking module does not detect the power state of the power side and load side of the circuit breaker. If the circuit breaker is switched on in a fault state, it will cause damage to personnel or property. .

Based on the above reasons, the present invention provides a device that is versatile, easy to install, easy to operate, and reliable in action, which can solve the above problems, and can meet the requirements of the rules and regulations of the user's electrical equipment and devices, and further satisfy customers. The demand for safety greatly improves the safety of electricity use.

The present invention is equipped with an electric operator circuit breaker to prevent malfunction and automatically lock the module. The purpose of the invention is to improve the existing technical practices, which cannot meet many of the regulations of the Republic of China on March 17, 2011. Content requirements, such as the requirements of Article 160-10, a circuit breaker with an electric operator to prevent malfunction and automatic locking module can protect the current circuit breaker of a power transformer (such as high voltage/low voltage) on its low voltage side. There is no protection device for phase loss on the primary side of the circuit breaker, no protection mechanism for phase reversal, and no protection device for reverse power supply (reverse power transmission), and the circuit breaker is not perfect in the prior art For the protection device, there is only a power outage listing notice during maintenance, resulting in many industrial safety accidents that cause damage to personnel or property. The invention provides a protection device with a simple structure and easy installation. The device can be used in an all-round way as a circuit breaker on the power circuit to meet the functional requirements of the above regulations, and it can reliably achieve the mutual locking function of the electrical and mechanical aspects to prevent the occurrence of malfunctions and improve the safety of electrical equipment. .

In order to achieve the above purpose, the present invention is equipped with an electric operator circuit breaker automatic blocking module for preventing malfunction. In the original existing power circuit, a power circuit status detection device is electrically connected to the power supply side and the load side of the circuit breaker. , the power circuit state detection device can understand the power state of the power system through an internal control circuit component and an internal microprocessor, and then set up an automatic power failure blocking device, which detects the power circuit according to the power circuit state The interpretation of the display device and the state of the circuit breaker make it possible for the electric operator circuit breaker to prevent malfunction and automatically lock the module to block and cut off the power when the power system fails, and to close and power on when the power system is normal.

In order to achieve the above-mentioned purpose, the present invention is equipped with an electric operator circuit breaker to prevent malfunction and automatic locking module. In the original existing power circuit, an automatic power circuit fault automatic blocking device is set on the circuit breaker, and the power circuit fault is automatically blocked. The device is controlled by the power circuit state detection device. When the power circuit is in a fault state, the power circuit state detection device is ordered to be electrically connected to the power circuit fault automatic blocking device, which can directly block the trip button of the circuit breaker. The switch links the tripping mechanism inside the circuit breaker, and electrically connects and disconnects the closed circuit of the automatic closing device of the power circuit to achieve the function of preventing malfunction and automatic locking. When the power circuit status detection device detects that the power circuit is normal , first release the power circuit fault automatic locking device, and activate the power circuit automatic closing device to drive the electric operator in the circuit breaker with electric operator to link the operating handle of the circuit breaker to close the circuit breaker to achieve the functional requirements of the purpose.

In order to achieve the above purpose, an automatic locking module equipped with an electric operator circuit breaker to prevent malfunction is electrically connected to a power circuit, and the power circuit has at least one attached electric operator circuit breaker, and the attached electric operator circuit breaker includes : A circuit breaker and an electric operator, the circuit breaker is connected to the power circuit in parallel, and the circuit breaker is equipped with a tripping mechanism, an operating handle, an auxiliary contact, A circuit breaker trip button switch, the electric operator is connected to the operating handle to actuate the circuit breaker to close or open; the electric operator circuit breaker is equipped with an automatic locking module to prevent malfunction, including: a power circuit state detection device, a power A circuit fault automatic locking device, an automatic power circuit closing device; the power circuit state detection device includes: a control circuit component for detecting the voltage signal status of the power supply side and load side contacts of the circuit breaker, the control circuit component The inner key is an electronic circuit, the electronic circuit is electrically connected to the power supply side and the load side of the circuit breaker, and a resistor divider rectifier element is connected in series between each phase sequence and the ground terminal, or a plurality of resistors are connected in series. The voltage dividing and rectifying element connected to the circuit breaker is used to sense the voltage signals of the power supply side and the load side of the circuit breaker, and send the state signals of whether each phase sequence of the electronic circuit has power or no power to the key microprocessor in the control circuit assembly The program of the key in the microprocessor judges and calculates the state of the internal contacts of the circuit breaker according to the state of the voltage signal of each phase sequence of the power supply side and the load side of the circuit breaker under inspection, and judges the open circuit The status of each phase contact inside the device is closed or open, and the abnormal state of the power supply side and the load side in the power circuit is judged, such as under-phase, reverse-phase, reverse-phase power supply, high-voltage power, low-voltage power, internal At least one of contact welding, etc.; the power circuit failure automatic locking device can be placed outside the circuit breaker trip button switch, according to the instructions of the power circuit status detection device, when a fault is detected, the power The circuit fault automatic locking device is actuated, and the trip button switch of the circuit breaker is linked to the trip mechanism inside the circuit breaker to lock, or the circuit circuit closed by the circuit breaker with the electric operator is disconnected to achieve the locking function, or the electric power The circuit fault automatic locking device is activated to lock the tripping mechanism inside the circuit breaker to achieve the locking function; when the power circuit automatic closing device judges the normal state of the power circuit according to the power circuit state detection device, it first releases the power circuit fault Automatic locking device, the electric circuit breaker with electric operator is closed, the circuit circuit of the automatic closing device is turned on, so that the electric operator mechanism is connected to actuate the circuit breaker, and the operating handle closes the circuit breaker; The circuit breaker prevents malfunction and automatically locks the module. The power circuit status detection device can detect fault power sources such as under-phase or reverse-phase power from the power supply side through the internal voltage sensing device, or from the load side through the internal voltage sensing device. When the voltage sensing device detects a reversed-phase power supply or a faulty power supply, the internal circuit of the power circuit status detection device sends a message, which is electrically connected to the power circuit fault automatic locking device to open and close the circuit breaker, and the tripping mechanism operates Blocking, when the power circuit state detection device detects no voltage state through the internal voltage sensing device at the load side end, and detects the normal state of the power circuit at the power supply side end through the internal voltage sensing device, the The internal circuit of the power circuit state detection device sends a message to release the power circuit fault automatic locking device equipped with the electric operator circuit breaker automatic locking module to prevent malfunction and electrically drives the electric operator to link the operating handle to close the open circuit In order to achieve the function of automatically locking the circuit breaker when the power circuit fails, and automatically closing the circuit breaker when the power circuit is normal.

In order to achieve the above purpose, an automatic locking module equipped with an electric operator circuit breaker to prevent malfunction is electrically connected to a power circuit, and the power circuit has at least one attached electric operator circuit breaker, and the attached electric operator circuit breaker includes : A circuit breaker and an electric operator, the circuit breaker is connected to the power circuit in parallel, the circuit breaker is equipped with a tripping mechanism, an operating handle, and an auxiliary contact, and the electric operator is connected to the operating handle to actuate the circuit breaker to close or Opening and breaking; this one is equipped with an electric operator circuit breaker to prevent malfunction and automatic locking module, including: a power circuit state detection device, a power circuit fault automatic blocking device, and a power circuit automatic closing device; the power circuit state detection device , including: a control circuit assembly for detecting the voltage signal status of the contacts on the power supply side and the load side of the circuit breaker, an electronic circuit is internally connected to the control circuit assembly, and the electronic circuit is electrically connected to the power supply side of the circuit breaker On the load side, a resistor divider rectifier element or a plurality of resistors connected in series with each other is connected in series between each phase sequence and the ground terminal to sense the disconnection. The voltage signals on the power supply side and the load side of the circuit breaker, and the state signals of whether there is power or no power in each phase sequence of the electronic circuit are sent to the internal key microprocessor of the control circuit assembly, and the program of the internal key of the microprocessor is based on the Whether the voltage signal of each phase sequence on the power supply side and the load side of the circuit breaker under inspection is in the state, to judge and calculate the internal contact state of the circuit breaker, and judge the state of each phase contact inside the circuit breaker, whether it is conduction or closed or The open circuit is opened, and the abnormal state of the power supply side and the load side in the power circuit is judged, 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 When the fault automatic blocking device judges the fault state of the power circuit according to the power circuit state detection device, the power circuit fault automatic blocking device can block the tripping mechanism inside the circuit breaker, or disconnect the circuit breaker attached to the electric operator to close The circuit circuit is linked with the tripping mechanism inside the circuit breaker to achieve the locking function; when the power circuit automatic closing device judges the normal state of the power circuit according to the power circuit state detection device, the circuit breaker with the electric operator is closed The circuit circuit of the power circuit automatic closing device is turned on, so that the electric operator mechanism actuates the circuit breaker and the operating handle closes the circuit breaker; the electric circuit breaker equipped with electric operator The automatic blocking module for preventing malfunction applies the power circuit state detection device When the power supply side end detects fault power such as under-phase or reverse power supply through the internal voltage sensing device, or when the load side end detects reverse phase power supply or faulty power supply through the internal voltage sensing device, the power circuit The internal circuit device of the state detection device sends a message, which is electrically connected to the power circuit fault automatic blocking device to open and close the circuit breaker, and the tripping mechanism operates to lock. When the power circuit state detection device passes the internal voltage at the load side When the sensing device detects the no-voltage state, and detects the normal state of the power circuit through the internal voltage sensing device at the side of the power supply, the internal circuit of the power circuit state detection device sends a message to release the electric operation The power circuit fault automatic locking device of the circuit breaker prevents malfunctioning automatic locking module and electrically drives the electric operator to link the operating handle to close the circuit breaker to achieve the power When the circuit breaks down, the circuit breaker is automatically blocked. When the power circuit is normal, it should have the function of automatically closing and energizing the circuit breaker of the electric operator to prevent malfunction and automatically block the module.

10: An automatic locking module equipped with an electric operator circuit breaker to prevent malfunction

11: With electric operator circuit breaker

12: circuit breaker

13: Electric operator

14: escape mechanism

15: Operating handle

16: Auxiliary contact

17: Power circuit state detection device

18: Automatic locking device for power circuit failure

19: Power circuit automatic closing device

20: Circuit breaker trip button switch

21: Control circuit components

22: Power side

23: Load side

24: Electronic circuit

25: Microprocessor

[Figure 1] It is a configuration schematic diagram of the first embodiment of the present invention with an electric operator circuit breaker automatic locking module to prevent malfunction

[Fig. 2] It is a schematic configuration diagram of the second embodiment of the present invention with an electric operator circuit breaker automatic locking module to prevent malfunction

The first example of an automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunctions is shown in Figure 1. The automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunctions is connected to a power circuit Sexual connection, and the power circuit has at least one electric operator circuit breaker 11, the electric operator circuit breaker 11 includes: a circuit breaker 12 and an electric operator 13, the circuit breaker 12 is connected to the power circuit, The circuit breaker 12 is equipped with a tripping mechanism 14, an operating handle 15, an auxiliary contact 16, and a circuit breaker tripping button switch 20. The electric operator 13 is connected to the operating handle 15 to actuate the closing or opening of the circuit breaker 12; An automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunction, including: a power circuit state detection device 17, a power circuit fault automatic blocking device 18, and a power circuit automatic closing device 19; the power circuit state detection device 17, including: a control circuit assembly 21 for detecting the voltage signal status of the contacts of the power supply side 22 and the load side 23 of the circuit breaker 12, the control circuit assembly 21 has an electronic circuit 24 inside, and the electronic circuit 24 is electrically connected To the power supply side 22 and the load side 23 of the circuit breaker 12, a resistor divider rectifier element or a voltage divider rectifier with a plurality of resistors connected in series is connected in series between each phase sequence and the ground terminal. The current element is used to sense the voltage signal of the power supply side 22 and the load side 23 of the circuit breaker 12, and send the state signal of whether each phase sequence of the electronic circuit 24 has power or no power to the internal key micro of the control circuit assembly 21. Processor 25, the program of the key in the microprocessor 25 judges and calculates the internal connection of the circuit breaker 12 according to whether the voltage signals of the phase sequences of the power supply side 22 and the load side 23 of the circuit breaker 12 are detected. Point state, and judge the state of each phase contact inside the circuit breaker 12, whether it is conduction closed or open circuit open, and judge the abnormal state of the power supply side 22 and the load side 23 in the power circuit, such as underphase, reverse phase, reverse phase power supply , high-voltage electricity, low-voltage electricity, internal contact welding, etc.; the power circuit fault automatic locking device 18 can be externally placed above the circuit breaker trip button switch 20, according to the power circuit state detection device 17 instructions, when a fault is detected, the power circuit fault automatic locking device 18 will activate the circuit breaker trip button switch 20 to lock the trip mechanism 14 inside the circuit breaker 12, or disconnect the auxiliary electric operation The closed circuit circuit of the circuit breaker 11 achieves the locking function, or the tripping mechanism 14 inside the circuit breaker 12 is locked by the action of the power circuit fault automatic locking device 18 to achieve the locking function; the power circuit automatic closing device 19 depends on When the power circuit state detection device 17 judges that the power circuit is in a normal state, it first releases the power circuit fault automatic locking device 18, and the circuit breaker 11 with the electric operator closes the circuit circuit of the power circuit automatic closing device 19 to make the electric circuit breaker 19 open. The operator 13 is mechanically connected to actuate the circuit breaker 12. The operating handle 15 closes the circuit breaker 12; the circuit breaker equipped with an electric operator can prevent malfunction and automatically lock the module 10. The power circuit status detection device 17 can be controlled by the power supply side 22 When the internal voltage sensing device detects a fault power supply such as an under-phase or reverse-phase power supply, or when the load-side 23 terminal detects a reverse-phase power supply or a faulty power supply through an internal voltage sensing device, the power circuit status detection device 17 The internal circuit sends a message, electrically connects the power circuit fault automatic locking device 18 to make the circuit breaker 12 open and close, and the tripping mechanism 14 operates to lock. When the sensing device detects a no-voltage state, And the normal state of the power circuit is detected by the internal voltage sensing device on the power supply side 22, and the internal circuit of the power circuit state detection device 17 sends a message to release the automatic locking module equipped with an electric operator circuit breaker to prevent malfunction 10, the power circuit fault automatic locking device 18 and electrically drives the electric operator 13 to link the operating handle 15 to close the circuit breaker 12, so that the circuit breaker 12 is automatically blocked when the power circuit fails, and the circuit breaker 12 is automatically locked when the power circuit is normal. It has the function of automatically closing the circuit breaker 12 and energizing the circuit breaker 12 through the automatic closing device 19 of the electric circuit breaker through the automatic closing module 10 for preventing malfunction of the electric operator circuit breaker.

As shown in Figure 2, the second embodiment of an automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunctions of the present invention, the automatic locking module 10 equipped with an electric operator circuit breaker to prevent malfunctions is connected to a power circuit Sexual connection, and the power circuit has at least one electric operator circuit breaker 11, the electric operator circuit breaker 11 includes: a circuit breaker 12 and an electric operator 13, the circuit breaker 12 is connected 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 actuate the closing or opening of the circuit breaker 12; Malfunction automatic blocking module 10 includes: a power circuit state detection device 17, a power circuit fault automatic blocking device 18, a power circuit automatic closing device 19; the power circuit state detection device 17 includes: a control circuit assembly 21, for detecting the voltage signal state of the contacts of the power supply side 22 and the load side 23 of the circuit breaker 12, an electronic circuit 24 is embedded in the control circuit assembly 21, and the electronic circuit 24 is electrically connected to the power supply of the circuit breaker 12 Side 22 and the load side 23, a resistor divider rectifier element or a plurality of resistors connected in series with each other are connected in series between each phase sequence and the ground terminal to sense the power supply of the circuit breaker 12 side 22 and the voltage signal of the load side 23, the status signal of each phase sequence of the electronic circuit 24 with electricity and no electricity is sent to the internal key microprocessor 25 of the control circuit assembly 21, and the internal key microprocessor 25 of the microprocessor 25 The program of the key judges and calculates the internal contact state of the circuit breaker 12 according to the state of the voltage signal of each phase sequence of the power supply side 22 and the load side 23 of the circuit breaker 12 under inspection, and judges the internal contact state of the circuit breaker 12 The state of each phase contact is conduction closed or open circuit open, and the abnormal state of the power supply side 22 and the load side 23 in the power circuit is judged, such as underphase, reverse phase, reverse phase power supply, high voltage power, low voltage power, internal At least one of contact welding, etc.; when the power circuit fault automatic locking device 18 judges the power circuit fault state according to the power circuit state detection device 17, the power circuit fault automatic blocking device 18 can lock the inside of the circuit breaker 12 The tripping mechanism 14, or disconnect the closed circuit circuit of the electric operator circuit breaker 11 and interlock with the tripping mechanism 14 inside the circuit breaker 12 to achieve the locking function; the power circuit automatic closing device 19 is based on the When the power circuit state detection device 17 judges that the power circuit is in a normal state, the electric operator circuit breaker 11 closes the circuit circuit of the power circuit automatic closing device 19, and the electric operator 13 mechanism actuates the circuit breaker 12 and the operating handle 15 to close the circuit breaker 12; the circuit breaker equipped with an electric operator to prevent misoperation and automatic locking module 10 can use the power circuit status detection device 17 to detect phase loss or reverse phase from the power supply side 22 terminal through the internal voltage sensing device. Phase power supply and other fault power supply, or when the reverse phase power supply or fault power supply is detected by the internal voltage sensing device at the load side 23, the internal circuit device of the power loop state detection device 17 sends a message to electrically connect the power supply The circuit fault automatic blocking device 18 makes the circuit breaker 12 open and close, and the tripping mechanism 14 operates to block. When the power circuit state detection device 17 detects a no-voltage state at the load side 23 through the internal voltage sensing device, And on the side 22 of the power supply, the internal voltage sensing device detects the normal state of the power circuit, and the internal circuit of the power circuit state detection device 17 sends a message to release the automatic locking module equipped with an electric operator circuit breaker to prevent malfunction 10, the power circuit fault automatic locking device 18 and electrically drives the electric operator 13 to link the operating handle 15 to close the circuit breaker 12, so as to automatically lock the circuit breaker 12 when the power circuit fails, When the power circuit is normal, the one has the function of automatically closing and electrifying the circuit breaker 12 through the automatic closing device 19 of the power circuit automatic closing device 19 for preventing malfunction of the electric operator circuit breaker.

To sum up, the present invention is equipped with an automatic locking module for preventing malfunction of the electric operator circuit breaker, which further improves the stability and safety of the circuit breaker panel in the power supply system, and has deep industrial applicability. In addition, after checking related products on the market and approved patent announcements, there is no one with the same essential technical features as the present invention, and it also meets the statutory patent application requirements of novelty and advancement. To file a patent application in accordance with the law, I urge your review committee to grant the patent for 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 present invention, which cannot limit the scope of rights of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention are still covered by the scope of the patent application of the present invention middle.

10: An automatic locking module equipped with an electric operator circuit breaker to prevent malfunction

11: With electric operator circuit breaker

12: circuit breaker

13: Electric operator

14: escape mechanism

15: Operating handle

16: Auxiliary contact

17: Power circuit state detection device

18: Automatic locking device for power circuit failure

19: Power circuit automatic closing device

20: Circuit breaker trip button switch

21: Control circuit components

22: Power side

23: Load side

24: Electronic circuit

25: Microprocessor

Claims (2)

An automatic locking module equipped with an electric operator circuit breaker to prevent misoperation, It is electrically connected with a power circuit, and the power circuit has at least one electric operator circuit breaker, the electric operator circuit breaker includes: a circuit breaker and an electric operator, the circuit breaker is connected to the power circuit, the circuit breaker is equipped with a trip mechanism, an operating handle, an auxiliary contact, and a circuit breaker trip button switch, and the electric operator is connected to the operating handle to actuate the circuit breaker to close or open; Automatic blocking module for preventing malfunction of the device, including: a power circuit state detection device, a power circuit fault automatic blocking device, and a power circuit automatic closing device; the power circuit state detection device includes: a control circuit component for detection The voltage signal status of the contacts on the power supply side and the load side of the circuit breaker. An electronic circuit is embedded in the control circuit assembly. The electronic circuit is electrically connected to the power supply side and the load side of the circuit breaker, and is connected to each phase sequence A resistor divider and rectifier element or a plurality of resistors are connected in series between the ground terminals to sense the voltage signals on the power supply side and the load side of the circuit breaker, and each of the electronic circuits The status signal of the phase sequence having power and no power is sent to the internal key microprocessor of the control circuit assembly. The state of the voltage signal is used to judge and calculate the internal contact state of the circuit breaker, and to judge the state of the contact points of each phase inside the circuit breaker, whether it is conduction closed or open circuit open, and to judge the abnormal state of the power supply side and the load side in the power circuit. Such as at least one of under-phase, reverse-phase, reverse-phase power supply, high-voltage electricity, low-voltage electricity, internal contact welding, etc.; The power circuit fault automatic locking device can be placed outside the circuit breaker trip button switch, according to the instructions of the power circuit status detection device, when a fault is detected, the power circuit fault automatic blocking device will be activated to break the circuit The trip button switch of the circuit breaker links the trip mechanism inside the circuit breaker to lock, Or disconnect the closed circuit circuit of the circuit breaker with electric operator to achieve the locking function, or the tripping mechanism inside the circuit breaker is locked by the automatic locking device of the power circuit failure to achieve the locking function; When the power circuit automatic closing device determines the normal state of the power circuit according to the power circuit state detection device, it first releases the power circuit fault automatic blocking device, and the circuit breaker attached to the electric operator closes the circuit circuit of the power circuit automatic closing device. , so that the electric operator mechanism is connected to actuate the circuit breaker, and the operating handle closes the circuit breaker; The circuit breaker equipped with an electric operator can prevent malfunction and automatically lock the module. The power circuit status detection device can detect faulty power sources such as under-phase or reverse-phase power from the power supply side through the internal voltage sensing device, or from the load side. When the internal voltage sensing device detects a reversed-phase power supply or a faulty power supply, the internal circuit of the power circuit status detection device sends a message to drive the power circuit fault automatic locking device to open and close the circuit breaker, and the tripping mechanism When the power circuit state detection device detects a no-voltage state through the internal voltage sensing device at the load side end, and detects the normal state of the power circuit at the power supply side end through the internal voltage sensing device, The internal circuit of the power circuit state detection device sends a message to release the power circuit fault automatic blocking device equipped with the automatic blocking module for preventing malfunction of the electric operator circuit breaker and electrically drives the electric operator to link the operating handle to close the open circuit When the power circuit is faulty, the circuit breaker can be automatically locked. When the power circuit is normal, the circuit breaker of the electric operator should be equipped with the function of automatically closing and energizing the circuit breaker through the automatic closing device of the power circuit. An automatic locking module equipped with an electric operator circuit breaker to prevent misoperation, It is electrically connected with a power circuit, and the power circuit has at least one electric operator circuit breaker, the electric operator circuit breaker includes: a circuit breaker and an electric operator, the circuit breaker is connected in parallel In the power circuit, the circuit breaker is equipped with a tripping mechanism, an operating handle, and an auxiliary contact, and the electric operator is connected to the operating handle to actuate the circuit breaker to close or open; The locking module includes: a power circuit state detection device, a power circuit fault automatic blocking device, and a power circuit automatic closing device; the power circuit state detection device includes: a control circuit assembly for detecting the circuit breaker The voltage signal status of the contacts on the power supply side and the load side. The control circuit assembly contains an electronic circuit, which is electrically connected to the power supply side and the load side of the circuit breaker, and between each phase sequence and the ground terminal. Connect a resistor divider rectifier element in series or a voltage divider rectifier element with a plurality of resistors connected in series to sense the voltage signals on the power supply side and the load side of the circuit breaker, and make each phase sequence of the electronic circuit energized. , The status signal of no power is sent to the internal key microprocessor of the control circuit assembly, and the program of the internal key of the microprocessor is based on the status of the voltage signal of each phase sequence of the power supply side and the load side of the circuit breaker under inspection. , to judge and calculate the internal contact state of the circuit breaker, and judge the internal contact state of the circuit breaker, whether it is conduction closed or open circuit open, and judge the abnormal state of the power supply side and the load side in the power circuit, such as phase loss, At least one of reverse-phase, reverse-phase power supply, high-voltage power, low-voltage power, internal contact welding, etc.; when the power circuit fault automatic blocking device judges the power circuit fault state according to the power circuit state detection device, the power The circuit fault automatic locking device can lock the tripping mechanism inside the circuit breaker, or disconnect the closed circuit circuit of the circuit breaker with electric operator, and interact with the tripping mechanism inside the circuit breaker to achieve the blocking function; When the power circuit automatic closing device determines the normal state of the power circuit according to the power circuit state detection device, the circuit breaker with the electric operator closes the circuit circuit of the power circuit automatic closing device, so that the electric operator actuates the circuit breaker. The handle closes the circuit breaker; the circuit breaker equipped with an electric operator prevents malfunction and the automatic locking module uses the power circuit status detection device to detect failures such as phase loss or reverse phase power supply from the side of the power supply through the internal voltage sensing device power supply, or when the reverse phase power supply or faulty power supply is detected by the internal voltage sensing device at the load side, the internal circuit of the power circuit status detection device sends a message, which is electrically connected to the power circuit fault automatic blocking device to make the When the circuit breaker is turned on and off, the tripping mechanism is activated and locked. When the power circuit status detection device detects a no-voltage state at the load side end through the internal voltage sensing device, and at the power supply side end through the internal voltage sensing device Detecting the normal state of the power circuit, the internal circuit of the power circuit status detection device sends a message to release the power circuit fault automatic blocking device equipped with the electric operator circuit breaker automatic blocking module for preventing malfunction and electrically drives the electric circuit breaker. The operator links the operating handle to close the circuit breaker to achieve automatic locking of the circuit breaker when the power circuit fails. The circuit breaker automatically closes the function of energizing.

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