TWI687009B - High-voltage circuit breaker panel device with interlock function - Google Patents

Abstract

The invention relates to a high-voltage circuit breaker panel device with interlocking function, which can improve the interlocking mode of the conventional high-voltage circuit breaker panel, and is not limited by the size of the brand specification. The high-voltage circuit breaker panel has self-protection locking function. It can be electrically and mechanically interlocked with each other, and can be interlocked for a long distance across the panel, which is easy to install and economical, and improves the safety of power consumption.

Description

High voltage circuit breaker panel device with interlock function

The invention is a high-voltage circuit breaker panel device with an interlocking function, which can improve the interlocking method of the conventional high-voltage circuit breaker panel, and is not limited by the specifications and sizes of the brand. The high-voltage circuit breaker panel has a self-protection blocking function, a high-voltage circuit breaker The panel and the high-voltage circuit breaker panel can be electrically and mechanically interlocked with each other, and can be interlocked across the long distance of the panel, which is easy to install and economical, and improves the safety of electricity.

There are interlocking methods for high-voltage circuit breaker panels, such as the world-famous brands ABB, Schneider, Siemens, etc. For the high-voltage circuit breaker panel and the high-voltage circuit breaker panel are generally similar to the steel cable, for the two (circuit breaker The mechanism on the back, and the operating mechanism that locks the circuit breaker) to interact to achieve the interlocking relationship, so there are special requirements on specifications, models, and sizes. If they are not the same model, specifications, they cannot Interlock. If it is a different brand, it cannot have this function, and it must be replaced by a whole group, which cannot be effectively used. This is a common problem in the current market.

At present, for the interlocking method between multiple high-voltage circuit breaker panels on the market, due to the limitation of the high-voltage circuit breaker equipment itself, it is practically difficult to perform the function of interlocking action in a mechanical manner. Therefore, the current approach is to achieve the above functional requirements with programmable controller PLC control. But the programmable controller PLC itself must be powered, If it is disabled, it may not be able to move. Moreover, the electronic method is also afraid of misoperation, and it is impossible to perform the interlock function between high-voltage circuit breakers like a mechanical method, which is a common problem when performing this function. Therefore, the use of a mechanical method for interlocking between high-voltage circuit breaker panels has its marketability and urgency to improve industrial safety. A high-voltage circuit breaker panel device with an interlocking function can improve this deficiency.

At present, the products on the market, the products of the interlocking device are generally two interlocking methods by wire, and the tripping mechanism of the high voltage circuit breaker is locked by the mechanical locking method, or the two are locked by the sheet metal method. The high-voltage circuit breaker locks the relative tripping mechanism or input mechanism to achieve the function of interlocking the two high-voltage circuit breakers. There are many shortcomings in this way that will cause inconvenience in use and limited functionality. For example, it is impossible to do electrical and mechanical interlocking functions in any location and any space, especially because of the different sizes, brands, models, and specifications. The interlocking function cannot be achieved, so it cannot be economically reduced. The cost is even more difficult to standardize production. The above problems are the difficulties that must be overcome. Therefore, the high-voltage circuit breaker panel device with the interlocking function of the present invention is to improve the above-mentioned deficiency to meet the actual market demand and improve the quality of safety.

There are currently places on the market where there must be interlocking between the high-voltage circuit breaker panel and the high-voltage circuit breaker panel, such as the interlocking between two high-voltage generators, and the mutual interaction of a power supply system with more than two circuits in a high-voltage power circuit system Locks, such as electrical interlocks between double-loop circuits... The above power loop system adopts multi-loop power supply in order to consider the reliability and stability of its power supply quality. Therefore, there must be an interlocking mechanism between the high-voltage circuit breaker and the high-voltage circuit breaker. At present, the market generally uses high-voltage automatic switch (HV ATS) as an interlocking high-voltage control panel, which has a large volume, is expensive, and has a long manufacturing time. And the high voltage circuit breaker in the control panel must be the same Grid, the same size, the same accessories, resulting in considerable restrictions on actual use, and can not make any changes. Therefore, this problem has not been solved, especially when the load changes, the existing equipment cannot be used, and the capacity equipment cannot be changed, the old and new models cannot be matched, and the on-site space cannot be matched..., which will cause many problems, so there are The invention of a high-voltage circuit breaker panel device with an interlocking function can be used to solve the above problems.

At present, in the high-voltage power system on the market, for a high-voltage circuit breaker panel with more than three circuits, it is difficult for the three high-voltage power circuits to perform the interlock function (Tie) between the three. Especially in the face of different system specifications, it is impossible to plan and integrate. In the actual state, the power circuit basically has some distance space. Therefore, when the connections between the three high-voltage circuit breaker panels are interlocked, they must all be concentrated in one panel or closely connected together. In addition, there are no multiple choices in specifications, and it is difficult to implement them in practice. Therefore, if there is actual demand on the market, most of the programmable controller PLC is currently used as the electrical control interlock, but it cannot effectively and economically perform the interlock function in mechanical aspects. The above problems are improved. Necessity.

The present invention is a high-voltage circuit breaker panel device with an interlocking function, which can improve the interlocking method of a conventional high-voltage circuit breaker panel, for example, using a high-voltage automatic switch (HV ATS) as an interlocking method for two pairs of locks; or using a sheet metal The interlocking method and cable type are used; two sets of the same brand, specifications, and sizes can be interlocked, and three sets cannot be interlocked; and must be in the same space limit. The present invention is not limited by the specifications, sizes, etc. of the brand, the high-voltage circuit breaker panel has a self-protection blocking function, and the high-voltage circuit breaker panel and the high-voltage circuit breaker panel can mutually perform electrical and mechanical functionalities. The lock is not limited by space and can be interlocked across a long distance of the plate, which is easy to install and economical, and improves the safety of electricity consumption.

In order to achieve the above purpose, the present invention has a high-voltage circuit breaker device with an interlock function. In the original high-voltage power circuit, a group of voltage detection devices must be built on the primary power supply side of the high-voltage circuit breaker, and A set of voltage detection devices are also built on the secondary load side. The voltage reduction unit of the two sets of voltage detection devices compares the two sets of voltage sensing values through the motor control loop, and is processed by the internal automatic sequential control circuit, and then outputs the results to the display unit and the warning unit. The result is output and tested again with the auxiliary contact AUX SW of the high-voltage circuit breaker. If there is a state of reverse power transmission, a transmission mechanism built in the device operates to limit the input of the high-voltage circuit breaker to close the mechanism to prevent the high-voltage circuit breaker from closing and opening. If there is a state of reverse power transmission, an electric manipulator is built in the device. When the electric manipulator is actuated, a mechanical transmission mechanism is interlocked to limit the tripping mechanism of the high-voltage circuit breaker, and the high-voltage circuit breaker cannot be put into operation. The action of closing ON to achieve the function of preventing the high voltage circuit breaker from prohibiting the wrong power transmission during reverse power transmission. The voltage detection devices on the power supply side and the load side are the basic components of two or three high-voltage circuit breaker panels with an interlocking high-voltage circuit breaker panel of the present invention.

In order to achieve the above purpose, the high-voltage circuit breaker panel device with interlocking function of the present invention must refer to the auxiliary contact AUX SW of the main contact state inside the high-voltage circuit breaker to detect whether the high-voltage circuit breaker has a reverse power transmission state . Because in the high-voltage power distribution system, the high-voltage circuit breaker may be used as a high-voltage circuit breaker in the connection board, then both ends of the high-voltage circuit breaker may be on both the power supply side and the load side. Therefore, when detecting its voltage sensing device, it must be supplemented by the state of the auxiliary contact of the high-voltage circuit breaker is in the off state, and the voltage sensing device detects When there is induced voltage, and the auxiliary contact AUX of the high-voltage circuit breaker is in the OFF state, when the message is received inside the control device of the high-voltage circuit breaker panel that prevents reverse power transmission, an internal braking mechanism is activated, and the braking mechanism limits the high voltage Circuit breaker electrical and mechanical activities. Restrict the high-voltage circuit breaker from being able to perform the operation of closing ON by electric operation and the operation of closing ON by manual operation, so as to achieve the function of locking, and as the high-voltage circuit breaker panel device with interlocking function of the present invention, three high-voltage circuit breaker panels Features of the contact panel in

In order to achieve the above purpose, the main body of the high-voltage circuit breaker has the functions of energy storage and electric operation input of the electric motor, as well as a trip circuit, a trip circuit working power supply via an external power supply, etc., and a trip mechanism driven by the trip coil, The function to turn off the circuit breaker. And on the main body of the high-voltage circuit breaker, there is also an operating mechanism and mechanism for manually switching on and off, as well as an operating mechanism for manually switching on and off. In order to make the high-voltage circuit breaker panel have an electrical and mechanical interlocking mechanism, first between two high-voltage circuit breaker panels, with each high-voltage circuit breaker as the main body, two sets of voltage detection devices must first be set up The step-down unit passes through the motor control loop, and then compares the two sets of voltage sensing values through an internal automatic sequential control circuit, and then outputs the result to the display unit and the warning unit. The result is output and connected to the high-voltage circuit breaker. The auxiliary contact AUX SW is tested again. If there is a reverse power transmission state, a transmission mechanism built in the device is activated to limit the input of the high-voltage circuit breaker to close the ON mechanism to prevent the high-voltage circuit breaker from closing. ON action. Each high-voltage circuit breaker panel must have the function of preventing the wrong power transmission during reverse power transmission; and an opening and closing lock device is provided on each high-voltage circuit breaker, and only one of the two locking devices has a key on the lock. The key can be pulled out of the condition that the lock is in the locked LOCK position. When the lock is in the locked LOCK position, the transmission mechanism of the lock will lock the tripping mechanism of the high-voltage circuit breaker, and will turn ON to close the high-voltage circuit Device The closed ON electrical circuit is interrupted to achieve the functional characteristics of being blocked electrically and mechanically. At this time, another high-voltage circuit breaker is not blocked by the lock, and the high-voltage circuit breaker panel can be freely closed ON, turned off or tripped. Tripping action. And at this time, the high-voltage circuit breaker panel can be operated freely, whether it is in the electrical operation part or the mechanical manual operation part, so that the interlocking function between the two circuit breaker panels can be achieved.

In order to achieve the above purpose, the main body of the high-voltage circuit breaker has the functions of energy storage and electric operation input of the electric motor, as well as a trip circuit, a trip circuit working power supply via an external power supply, etc., and a trip mechanism driven by the trip coil, The function to turn off the circuit breaker. And on the main body of the high-voltage circuit breaker, there is also an operating mechanism and mechanism for manually switching on and off, as well as an operating mechanism for manually switching on and off. In order to make the high-voltage circuit breaker panel have an electrical and mechanical interlocking mechanism, first between three high-voltage circuit breaker panels, with each high-voltage circuit breaker as the main body, three sets of voltage detection devices must be set up first The step-down unit passes through the motor control loop, and then the three sets of voltage sensing values are compared to be processed by the internal automatic sequential control circuit, and then the result is output to the display unit and the warning unit. The result is output and connected to the high-voltage circuit breaker. The auxiliary contact AUX SW is to be retested. If there is a state of reverse power transmission, a transmission mechanism built in the device operates to limit the input of the high-voltage circuit breaker to close the mechanism to prevent the high-voltage circuit breaker from closing and opening. Each high-voltage circuit breaker panel must have the function of preventing the wrong power transmission during reverse power transmission; and an opening and closing lock device is provided on each high-voltage circuit breaker, and only two locks of the three locking devices have keys. The key can be pulled out of the condition that the lock is in the locked LOCK position. When the lock is in the locked LOCK position, the transmission mechanism of the lock will lock the tripping mechanism of the high-voltage circuit breaker, and will turn ON to close the high-voltage circuit The electrical circuit closed when the device is closed is interrupted, achieving the functional characteristics of electrical and mechanical blocking. at this time The other high-voltage circuit breaker is not locked by the lock. The high-voltage circuit breaker panel can freely close, turn off or trip. At this time, the high-voltage circuit breaker panel can operate freely, whether it is in the electrical The operation part or the mechanical manual operation part can achieve the interlock function between the three circuit breaker panels.

A high-voltage circuit breaker panel device with an interlocking function, in addition to the above-mentioned blocking method, the high-voltage circuit breaker panel has the function of self-blocking in addition to the KerKey method to interlock two high-voltage circuit breaker panels, or three high-voltage circuit breaker panels Interlocking of circuit breaker panel. The electrical interlocking method will be described with reference to FIG. 4 again. As shown in FIG. 4, the high-voltage circuit breaker panel 1 and the high-voltage circuit breaker panel 2, in which the high-voltage circuit breaker panel 1 and the high-voltage circuit breaker panel 2 are secondary When there is voltage on the load side, the high-voltage circuit breaker panel 1 and the high-voltage circuit breaker panel 2 can not be put into the ON action; in the case of three high-voltage circuit breaker panels, the operation principle of the high-voltage circuit breaker panel 3 as the contact panel is : When the position of the high-voltage circuit breaker panel 3 is in the non-closed ON state, and the primary power supply side and the secondary load side of the high-voltage circuit breaker panel 3 have electricity, the high voltage circuit breaker panel 3 The self-locking of the circuit breaker panel 3 is electrically and mechanically locked, and it cannot be turned on. Whether it is electrically operated or mechanically operated, the high voltage circuit breaker panel 3 of the contact panel cannot be turned ON. Similarly, when the high-voltage circuit breaker panel is in the state of more than three, the characteristic function of sequential control can also be achieved according to the above principle, so that the above purpose can be achieved.

A high-voltage circuit breaker panel device with an interlocking function includes: one or two high-voltage circuit breaker panels, the two high-voltage circuit breaker panels are connected in parallel in a high-voltage power circuit, wherein both of the two high-voltage circuit breaker panels include: one High-voltage circuit breaker, which is connected in parallel to the high-voltage power circuit. The high-voltage circuit breaker is equipped with a trip mechanism, an electric or manual device for closing and opening and closing operations, auxiliary contacts, etc. Automatic control circuit electrical connection; a power supply side A voltage sensing device, the power supply side voltage sensing device is connected in parallel to the power supply side of the high voltage circuit breaker in the high voltage power circuit, and the step-down unit of the power supply side voltage sensing device is electrically connected to an internal automatic control circuit; a load side Voltage sensing device, the load-side voltage sensing device is connected in parallel to the load side of the high-voltage circuit breaker in the high-voltage power circuit, and the step-down unit of the load-side voltage sensing device is electrically connected to an internal automatic control circuit; an internal automatic Control circuit, the internal automatic control circuit is electrically connected to the auxiliary contact, trip mechanism, etc. of the connection device inside the high-voltage circuit breaker, and is electrically connected to the power-side voltage sensing device and the load-side voltage sensing device, and the result is electrically Sexually connected to the display device; a display device, the display device is electrically connected to the internal automatic control circuit, when the reverse power transmission state, the internal automatic control circuit sends a message to the display device to indicate that the reverse power supply lamp is on; a locking device, the locking device There is a lock key, which can drive the transmission mechanism inside the lock of the locking device. When the lock key is in the locked position, the key can be pulled out of the lock. The transmission mechanism inside the lock can lock the tripping inside the high-voltage circuit breaker Mechanism, and open the circuit loop that closes the high-voltage circuit breaker and is electrically connected to the internal automatic control circuit, and interlocks with the tripping mechanism inside the high-voltage circuit breaker; the high-voltage circuit breaker panel device with an interlock function, A set of voltage sensing devices are set up on the power supply side and the load side of the high voltage circuit breaker, the voltage reduction unit of the voltage sensing device is electrically connected to the internal automatic control circuit, and the auxiliary contact state of the high voltage circuit breaker is also electrically Connected to the internal automatic control circuit, when the internal automatic control circuit detects that the internal contacts of the high-voltage circuit breaker are not conducting, and detects a voltage on the load side of the high-voltage circuit breaker, the internal automatic control circuit operates and forces The trip mechanism of the high-voltage circuit breaker is operated, so that the high-voltage circuit breaker cannot perform the closing action, and the display device is turned on to the reverse power supply display lamp. At this time, the blocking device can be in the blocking position, and the blocking device also blocks the interior of the high-voltage circuit breaker Trip mechanism, and forcibly open the circuit loop that closes the high-voltage circuit breaker. At this time, the key can be removed from the lock, and the key can be inserted into another A high-voltage circuit breaker panel is used to release the electrical and mechanical interlocking of the high-voltage circuit breaker panel by its lock. At this time, the high-voltage circuit breaker panel can freely close the energized execution function. The function of preventing reverse power transmission plus the function of a locking device to achieve the function of interlocking two high-voltage circuit breakers.

A high-voltage circuit breaker panel device with an interlocking function includes: one or three high-voltage circuit breaker panels, the three high-voltage circuit breaker panels are connected in parallel in a high-voltage power circuit, wherein the three high-voltage circuit breaker panels include: one High-voltage circuit breaker, which is connected in parallel to the high-voltage power circuit. The high-voltage circuit breaker is equipped with a trip mechanism, an electric or manual device for closing and opening and closing operations, auxiliary contacts, etc. Automatic control circuit electrical connection; a power supply side voltage sensing device, the power supply side voltage sensing device is connected in parallel with the power supply side of the high voltage circuit breaker in the high voltage power circuit, and the voltage stepping unit of the power supply side voltage sensing device is electrically Connected to the internal automatic control circuit; a load-side voltage sensing device, the load-side voltage sensing device is connected in parallel to the load side of the high-voltage circuit breaker in the high-voltage power circuit, and the electrical characteristics of the step-down unit of the load-side voltage sensing device Connected to the internal automatic control circuit; an internal automatic control circuit, which is electrically connected to auxiliary contacts, trip mechanisms, etc. of the connection device inside the high-voltage circuit breaker, and electrically connected to the power supply side voltage sensing device and load Side voltage sensing device, and the result is electrically connected to the display device; a display device, the display device is electrically connected to the internal automatic control circuit, when the reverse power transmission state, the internal automatic control circuit sends a message to the display device to indicate the reverse The power supply lamp is on; a locking device, the locking device has a key, the key can drive the transmission mechanism inside the lock of the locking device, the key can only be pulled out of the lock when the lock is in the locked position, the transmission mechanism inside the lock The internal trip mechanism of the high-voltage circuit breaker can be blocked, and the circuit loop that closes the high-voltage circuit breaker can be opened and electrically connected with the internal automatic control circuit. Linkage linkage; the high-voltage circuit breaker panel device with interlock function is set up a set of voltage sensing devices on the power supply side and load side of the high-voltage circuit breaker, the voltage reduction unit of the voltage sensing device is electrically connected to the internal automatic Control circuit, the auxiliary contact state of the high-voltage circuit breaker is also electrically connected to the internal automatic control circuit, when the internal automatic control circuit detects that the internal contact of the high-voltage circuit breaker is not conductive, and is on the load side of the high-voltage circuit breaker When a voltage is detected, the internal automatic control circuit operates and forces the trip mechanism of the high-voltage circuit breaker to operate, so that the high-voltage circuit breaker cannot perform the closing action, and causes the display device to turn on the reverse power supply display lamp, at this time the blocking device In the locked position, the locking device and the internal trip mechanism of the high-voltage circuit breaker can be locked, and the circuit loop that closes the high-voltage circuit breaker can be forcibly opened. At this time, the key can be pulled out of the lock, and the key can be inserted into another High-voltage circuit breaker panel to release the electrical and mechanical interlocking condition of its high-voltage circuit breaker panel by its lock, at this time the high-voltage circuit breaker panel can freely close the energized executive function, and each high-voltage circuit breaker panel can prevent reverse The function of power transmission plus the function of the locking device to achieve the configuration of the interlock function of two high-voltage circuit breakers. The contact plate in the high-voltage circuit breaker panel is equivalent to the primary power supply side and the secondary load side of the high-voltage circuit breaker. When there is a potential, the contact plate in the high-voltage circuit breaker panel cannot self-close and conduct electricity at this time. There are three locks on the three high-voltage circuit breaker panels but only two keys, and only two high-voltage circuit breaker panels can be powered on. The third high-voltage circuit breaker panel is locked in a non-energized state to achieve the interlocking function of the three high-voltage circuit breaker panels.

1‧‧‧1 high voltage circuit breaker panel

2‧‧‧2 high voltage circuit breaker panel

3‧‧‧3 high voltage circuit breaker panel

4‧‧‧1 locking device

5‧‧‧2 locking device

6‧‧‧3 locking device

7‧‧‧1 key

8‧‧‧2 key

9‧‧‧3 key

10‧‧‧ High voltage circuit breaker panel device with interlock function

11‧‧‧High voltage circuit breaker

12‧‧‧Power side voltage sensing device

13‧‧‧ Load side voltage sensing device

14‧‧‧Auxiliary contact normally closed contact

15‧‧‧Internal automatic control circuit

16‧‧‧ Voltage comparison circuit

17‧‧‧Microprocessor control unit

18‧‧‧ Transmission mechanism

19‧‧‧ Tripping mechanism

20‧‧‧Display device

21‧‧‧ Trip coil

22‧‧‧Closed mechanism

23‧‧‧Power side detection device

24‧‧‧Load side detection device

25‧‧‧locking device

26‧‧‧locking device transmission mechanism

41‧‧‧No. 1 locking device lock

42‧‧‧ No. 1 locking device transmission mechanism

51‧‧‧ No. 2 locking device lock

52‧‧‧ No. 2 locking device transmission mechanism

61‧‧‧No. 3 locking device lock

62‧‧‧ No. 3 locking device transmission mechanism

101‧‧‧1 high voltage circuit breaker

102‧‧‧No. 1 blocking circuit loop

201‧‧‧2 high voltage circuit breaker

202‧‧‧No. 2 lock circuit

301‧‧‧3 high voltage circuit breaker

302‧‧‧3 block circuit

402‧‧‧2-hole control key box

403‧‧‧ 3-hole control key box

Figure 1 Schematic diagram of the device of the high-voltage circuit breaker panel to prevent reverse transmission self-locking function

Figure 2 The first implementation case of a high-voltage circuit breaker panel device with an interlock function

Figure 3 The second embodiment of the high-voltage circuit breaker panel device with interlock function

Figure 4 The third embodiment of the high-voltage circuit breaker panel device with interlock function

The high-voltage circuit breaker panel device 10 of the present invention having an interlocking function, the schematic diagram of the device for preventing the reverse power transmission self-blocking function of the high-voltage circuit breaker panel is shown in FIG. 1, a high-voltage circuit breaker panel must be built first to prevent the reverse power transmission self-blocking function. The power circuit is provided with a high-voltage circuit breaker 11, a power-side voltage sensing device 12, and a load-side voltage sensing device 13; the internal auxiliary components of the high-voltage circuit breaker 11 include at least one auxiliary contact normally closed contact 14, a trip Mechanism 19; the step-down unit of the power supply side voltage sensing device 12 is electrically connected to the internal automatic control circuit 15; the step-down unit of the load side voltage sensing device 13 is electrically connected to the internal automatic control circuit 15; the internal automatic The control circuit 15 has a receiving unit and a line protection device inside, and the voltage reduction units of the power supply side voltage sensing device 12 and the load side voltage sensing device 13 are electrically connected to the voltage comparison circuit 16 through the line protection device, and then The processor control unit 17 performs logical sequence control, and commands the result to a transmission mechanism 18 for operation. The transmission mechanism 18 operates to limit the tripping mechanism 19 of the high-voltage circuit breaker 11, and the transmission mechanism 18 is linked to the closing mechanism 22 of the high-voltage circuit breaker 11 to limit the operation, so that the high-voltage circuit breaker 11 cannot perform the ON action. And a command is given to the trip coil 21 of the high-voltage circuit breaker 11 through the microprocessor control unit 17, and is electrically connected to the trip mechanism 19 of the high-voltage circuit breaker 11 so that the high-voltage circuit breaker 11 cannot be closed and turned on. Function to prevent accidental power transmission when reverse ground transmission.

The first embodiment of the high-voltage circuit breaker panel device 10 of the present invention with an interlocking function is shown in FIG. 2, a high-voltage circuit breaker panel must be built first to prevent reverse power transmission self-blocking function and has a locking device. The power circuit is provided with a High voltage circuit breaker 11, power supply side voltage sensing device 12, load side voltage sensing device 13; the internal auxiliary components of the high voltage circuit breaker 11 include at least one auxiliary contact normally closed contact 14, a trip mechanism 19; the power supply side The voltage step-down unit of the voltage sensing device 12 is electrically connected Connected to the internal automatic control circuit 15; the step-down unit of the load-side voltage sensing device 13 is electrically connected to the internal automatic control circuit 15; the internal automatic control circuit 15 has a receiving unit and a line protection device, which connects the power supply side voltage The voltage lowering unit of the sensing device 12 and the load-side voltage sensing device 13 is electrically connected to the voltage comparison circuit 16 through the line protection device, and then is controlled by the microprocessor control unit 17 for logical sequence, and the result is issued to a transmission mechanism. 18 actuation, the transmission mechanism 18 actuates, limiting the tripping mechanism 19 of the high-voltage circuit breaker 11, the transmission mechanism 18 is linked to the closing mechanism 22 of the high-voltage circuit breaker 11 to actuate the restriction, so that the high-voltage circuit breaker 11 cannot be closed ON Action, and issued a command to the tripping coil 21 of the high-voltage circuit breaker 11 via the microprocessor control unit 17, and electrically connected to the tripping mechanism 19 of the high-voltage circuit breaker 11 so that the high-voltage circuit breaker 11 cannot be closed ON Action to achieve the function of preventing accidental power transmission when reverse power transmission. And has a locking device 25, the locking device 25 can be linked to a locking device transmission mechanism 26, the locking device transmission mechanism 26 can drive the mechanism to lock the tripping mechanism 19 and can close the electrical closed circuit of the high voltage circuit breaker 11 The mechanism 22 actuates to achieve the electrical and mechanical locking function.

The second embodiment of the schematic diagram of the device for preventing the self-locking function of the reverse power transmission of the high-voltage circuit breaker panel is shown in FIG. 3, for example, a No. 1 high-voltage circuit breaker panel 1 and a No. 2 high-voltage circuit breaker panel 2 are built on the power circuit; The basic internal configuration of No. 1 high-voltage circuit breaker panel 1 and No. 2 high-voltage circuit breaker panel 2 are shown in FIG. 2. The functional implementation of the interlocking of the two high-voltage circuit breaker panels can be set in the No. 1 high-voltage circuit breaker panel 1 There are No. 1 high voltage circuit breaker 101, No. 1 blocking circuit loop 102, No. 1 blocking device 4, the No. 1 blocking device 4 has a combination of No. 1 blocking device lock 41, No. 1 blocking device transmission mechanism 42, No. 1 key 7; The No. 2 high voltage circuit breaker panel 2 is provided with No. 2 high voltage circuit breaker 201, No. 2 blocking circuit loop 202, No. 2 blocking device 5, the No. 2 blocking device 5 has No. 2 blocking device lock 51, No. 2 blocking device transmission The combination of mechanism 52 and key No. 2 is a 2-hole control key box 402. The No. 1 high The circuit breaker panel 1 is equipped with the No. 1 locking device 4, the No. 2 high voltage circuit breaker panel 2 is equipped with the No. 2 locking device 5, and cooperates with the 2-hole control key box 402, at least one of the 2-hole control key box 402 Only the key is on the 2-hole control key box 402, and the 2-hole control key box 402 can be three combinations of the key No. 1 key 7 and the No. 2 key 8 two keys, the No. 1 key key 7 or the No. 2 key key 8. When the No. 1 locking device 4 is in the locked position, the No. 1 key 7 activates the No. 1 locking device lock 41 to activate the No. 1 locking device transmission mechanism 42 to block the No. 1 high voltage circuit breaker 101 in the No. 1 high voltage circuit breaker panel 1 And the No. 1 locking circuit loop 102 is actuated to achieve the locking effect. The No. 1 key 7 is placed in the 2-hole control key box 402. At this time, the No. 2 high voltage circuit breaker panel 2 has the No. 2 locking device 5 which can be freely operated. In this way, the interlocking function can be achieved; in the same way, when the No. 2 locking device 5 is in the locked position, the No. 2 key 8 activates the No. 2 locking device lock 51 and the No. 2 locking device transmission mechanism 52 to the No. 2 high-voltage circuit breaker panel 2 The No. 2 high-voltage circuit breaker 201 performs the blocking action, and the No. 2 blocking circuit loop 202 is actuated to achieve the blocking effect. The No. 2 key 8 is placed in the 2-hole control key box 402. At this time, the No. 1 high-voltage circuit breaker panel 1 has The No. 1 locking device 4 can be operated freely, so that the interlocking function can be achieved.

The third embodiment of the schematic diagram of the device for preventing the self-locking function of the reverse power transmission of the high-voltage circuit breaker panel is shown in FIG. 4, for example, the No. 1 high-voltage circuit breaker panel 1 and the No. 2 high-voltage circuit breaker panel 2 and 3 High voltage circuit breaker panel 3; the basic configuration inside the No. 1 high voltage circuit breaker panel 1, No. 2 high voltage circuit breaker panel 2 and No. 3 high voltage circuit breaker panel 3 is shown in FIG. 2. The implementation of the function of the interlocking of the three high-voltage circuit breaker panels can set the No. 1 high-voltage circuit breaker panel 1 with No. 1 high-voltage circuit breaker 101, No. 1 blocking circuit circuit 102, No. 1 blocking device 4, and the No. 1 blocking Device 4 has a combination of No. 1 locking device lock 41, No. 1 locking device transmission mechanism 42, No. 1 key 7; the No. 2 high voltage circuit breaker panel 2 is provided with No. 2 high voltage circuit breaker 201, No. 2 locking circuit circuit 202, No. 2 locking device 5, the No. 2 locking device 5 has No. 2 locking device lock 51, No. 2 locking device transmission mechanism 52, No. 2 key 8 The combination of No. 3 high voltage circuit breaker panel 3 is provided with No. 3 high voltage circuit breaker 301, No. 3 blocking circuit circuit 302, No. 3 blocking device 6, the No. 3 blocking device 6 has No. 3 blocking device locks 61, No. 3 The combination of the transmission mechanism 62 of the locking device and the No. 3 key 9 is also provided with a 3-hole control key box 403. The No. 1 high voltage circuit breaker panel 1 is equipped with a No. 1 locking device 4, the No. 2 high voltage circuit breaker panel 2 is equipped with a No. 2 locking device 5, and the No. 3 high voltage circuit breaker panel 3 is equipped with a No. 3 locking device 6 , And cooperate with 3-hole control key box 403, there is at least one key on the 3-hole control key box 403 on the 3-hole control key box 403, the 3-hole control key box 403 can be key No. 1, key No. 2, key 8, Key No. 3 is one of 9 or various combinations. When the No. 1 locking device 4 is in the locked position, the No. 1 key 7 activates the No. 1 locking device lock 41 to activate the No. 1 locking device transmission mechanism 42 to block the No. 1 high voltage circuit breaker 101 in the No. 1 high voltage circuit breaker panel 1 And the No. 1 blocking circuit loop 102 is operated to achieve the blocking effect. The No. 1 key 7 is placed in the 3-hole control key box 403. At this time, the No. 2 high voltage circuit breaker panel 2 has the No. 2 blocking device 5, No. 3 high voltage circuit breaker Locking device No. 3 on the device plate 3 can be freely operated, so as to achieve the function of 3 interlocks; in the same way, when the locking device No. 2 is in the locked position, the key No. 2 will activate the lock device No. 2 of the locking device No. 2 The No. 2 locking device transmission mechanism 52 performs the locking action on the No. 2 high voltage circuit breaker 201 in the No. 2 high voltage circuit breaker panel 2, and causes the No. 2 locking circuit circuit 202 to operate to achieve the locking effect. The No. 2 key 8 is placed in the 3 hole control In the key box 403, at this time, the No. 1 high-voltage circuit breaker panel 1 has the No. 1 locking device 4, and the No. 3 high-voltage circuit breaker panel 3 has the No. 3 locking device 6 which can be freely operated, so that three interlocking functions can be achieved; Similarly, when the No. 3 locking device 6 is in the locked position, the No. 3 key 9 activates the No. 3 locking device lock 61 to activate the No. 3 locking device transmission mechanism 62 to lock the No. 3 high voltage circuit breaker 301 in the No. 3 high voltage circuit breaker panel 3 Action, and make the No. 3 blocking circuit loop 302 actuate to achieve the blocking effect, the No. 3 key 9 is placed in the 3-hole control key box 403, at this time the No. 1 high-voltage circuit breaker panel 1 has No. 1 blocking device 4, No. 2 high voltage The No. 2 locking device 5 on the circuit breaker panel 2 can be operated freely, so that it can reach 3 Taiwan interlocking function.

In summary, the high-voltage circuit breaker panel device with interlocking function of the present invention further improves the stability and safety of the high-voltage circuit breaker panel in the power supply system, and has deep industrial utility. Moreover, the relevant products on the market and the approved patent announcements did not see the same technical features as the essence of the present invention, but also met the new and progressive legal patent application requirements. Aid to file a patent application in accordance with the law, and urge your reviewer to grant the patent in this case as soon as possible to ensure the rights and interests of the applicant. However, the ones disclosed in this case are only the preferred embodiments of the present invention, which cannot be used to limit the scope of the rights of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are still covered by the patent application scope of the present invention in.

1‧‧‧1 high voltage circuit breaker panel

2‧‧‧2 high voltage circuit breaker panel

4‧‧‧1 locking device

5‧‧‧2 locking device

7‧‧‧1 key

8‧‧‧2 key

41‧‧‧No. 1 locking device lock

42‧‧‧ No. 1 locking device transmission mechanism

51‧‧‧ No. 2 locking device lock

52‧‧‧ No. 2 locking device transmission mechanism

101‧‧‧1 high voltage circuit breaker

102‧‧‧No. 1 blocking circuit loop

201‧‧‧2 high voltage circuit breaker

202‧‧‧No. 2 lock circuit

402‧‧‧2-hole control key box

Claims (2)

A high-voltage circuit breaker panel device with an interlocking function includes: one or two high-voltage circuit breaker panels, the two high-voltage circuit breaker panels are connected in parallel in a high-voltage power circuit, wherein both of the two high-voltage circuit breaker panels include: one A high-voltage circuit breaker is connected in parallel to the high-voltage power circuit. The high-voltage circuit breaker is equipped with a trip mechanism, an electric or manual device for closing and opening and closing operations, auxiliary contacts, etc. An internal automatic control circuit is electrically connected; a power supply side voltage sensing device, the power supply side voltage sensing device is connected in parallel to the power supply side of the high voltage circuit breaker in the high voltage power circuit, and the voltage drop of the power supply side voltage sensing device The unit is electrically connected to the internal automatic control circuit; a load-side voltage sensing device, the load-side voltage sensing device is connected in parallel to the load side of the high-voltage circuit breaker in the high-voltage power circuit, and the load-side voltage sensing device The step-down unit is electrically connected to the internal automatic control circuit; the internal automatic control circuit is electrically connected to the connecting device inside the high-voltage circuit breaker, the auxiliary contact, the trip mechanism, etc., and is electrically connected to the power supply side voltage sense Measuring device, the load side voltage sensing device, and the result is electrically connected to a display device; the display device is electrically connected to the internal automatic control circuit, when the reverse power transmission state, the internal automatic control circuit sends a message to The display device indicates that the reverse power supply lamp is on; a locking device, the locking device has a key, the key can drive the internal transmission mechanism of the lock of the locking device, the key can only be pulled out of the lock when the lock is in the locked position, the The transmission mechanism inside the lock can block the tripping mechanism inside the high-voltage circuit breaker, and open the circuit loop that closes the high-voltage circuit breaker and is electrically connected with the internal automatic control circuit, and the tripping inside the high-voltage circuit breaker Institutions are linked to each other; The high-voltage circuit breaker panel device with an interlocking function is to set up a set of voltage sensing devices on the power supply side and load side of the high-voltage circuit breaker, and the voltage reduction unit of the voltage sensing device is electrically connected to the internal automatic control Circuit, the auxiliary contact state of the high voltage circuit breaker is also electrically connected to the internal automatic control circuit, when the internal automatic control circuit detects that the internal contact of the high voltage circuit breaker is not conductive, and is on the load side of the high voltage circuit breaker When a voltage is detected, the internal automatic control circuit is activated and the trip mechanism of the high-voltage circuit breaker is forced to operate, so that the high-voltage circuit breaker cannot perform the closing action, and the display device is turned on for the reverse power transmission indicator light. The blocking device can be in the blocking position. The blocking device also blocks the tripping mechanism inside the high-voltage circuit breaker and forcibly opens the circuit loop that closes the high-voltage circuit breaker. At this time, the key can be removed from the lock, and the lock can be removed. The key is inserted into another high-voltage circuit breaker panel to release the electrical and mechanical interlocking of the lock to the high-voltage circuit breaker panel. At this time, the high-voltage circuit breaker panel can freely close the energized execution function. The function of the high-voltage circuit breaker panel to prevent reverse power transmission and the function of the locking device to achieve the function of interlocking the two high-voltage circuit breakers. A high-voltage circuit breaker panel device with an interlocking function includes: one or three high-voltage circuit breaker panels, the three high-voltage circuit breaker panels are connected in parallel in a high-voltage power circuit, wherein the three high-voltage circuit breaker panels include: one A high-voltage circuit breaker is connected in parallel to the high-voltage power circuit. The high-voltage circuit breaker is equipped with a trip mechanism, an electric or manual device for closing and opening and closing operations, auxiliary contacts, etc. An internal automatic control circuit is electrically connected; a power supply side voltage sensing device, the power supply side voltage sensing device is connected in parallel to the power supply side of the high voltage circuit breaker in the high voltage power circuit, and the voltage drop of the power supply side voltage sensing device The unit is electrically connected to the internal automatic control circuit; A load-side voltage sensing device, the load-side voltage sensing device is connected in parallel to the load side of the high-voltage circuit breaker in the power circuit, and the step-down unit of the load-side voltage sensing device is electrically connected to the internal automatic control circuit The internal automatic control circuit is electrically connected to the auxiliary contact, the trip mechanism, etc. in the connection device inside the high-voltage circuit breaker, and is electrically connected to the power supply side voltage sensing device and the load side voltage sensing device, and The result is electrically connected to a display device; the display device is electrically connected to the internal automatic control circuit, when the reverse power transmission state, the internal automatic control circuit sends a message to the display device to indicate that the reverse power transmission light is on; a locking device, The locking device has a lock key, which can drive the transmission mechanism inside the lock of the lock device. When the lock key is in the locked position, the key can be pulled out of the lock. The transmission mechanism inside the lock can lock the interior of the high-voltage circuit breaker Tripping mechanism, and open the circuit loop that closes the high-voltage circuit breaker and is electrically connected with the internal automatic control circuit, and interlocks with the tripping mechanism inside the high-voltage circuit breaker; the high voltage with interlock function A circuit breaker panel device is a set of voltage sensing devices on the power supply side and load side of the high voltage circuit breaker. The voltage reduction unit of the voltage sensing device is electrically connected to the internal automatic control circuit. The state of the auxiliary contact is also electrically connected to the internal automatic control circuit. When the internal automatic control circuit detects that the internal contact of the high-voltage circuit breaker is not conducting, and a voltage is detected on the load side of the high-voltage circuit breaker, The internal automatic control circuit actuates and forces the trip mechanism of the high-voltage circuit breaker to operate, so that the high-voltage circuit breaker cannot perform the closing action, and the display device lights up the reverse power supply display lamp, and the blocking device can be in the blocking position, The locking device also locks the tripping mechanism inside the high-voltage circuit breaker, and forcibly opens the circuit loop that closes the high-voltage circuit breaker, at this time the key can be pulled out of the lock, and the key can be inserted into another high-voltage circuit breaker plate To release the high voltage The interlock condition of the circuit breaker panel electrical and mechanical, at this time the high voltage circuit breaker panel can freely close the energized execution function, the function of preventing reverse power transmission in each high voltage circuit breaker panel plus the function of the locking device to achieve two The configuration of the interlock function of a high-voltage circuit breaker, the contact plate in the high-voltage circuit breaker panel, the primary power supply side and the secondary load side of the high-voltage circuit breaker when the measurement has potential, the The self-locking of the contact plate cannot close the conduction. There are three of the locks on the three high-voltage circuit breaker plates but only two of the keys. Only two of the high-voltage circuit breaker plates can be energized and the third high-voltage circuit breaker plate is locked. Under the condition of no power supply, the function of interlocking the three high-voltage circuit breaker panels is achieved.

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