Control method and system for power-on / power-off interlock between upstream and downstream electrical cabinets

Abstract

The present invention relates to the field of interlock control between electrical cabinets. Disclosed are a control method and system for a power-on / power-off interlock between upstream and downstream electrical cabinets. The method comprises: S1, equipping each of upstream and downstream electrical cabinets with a GS key and an auxiliary lock which can secure the GS key, wherein data can be transferred between the two auxiliary keys; S2, after operating a circuit breaker and a grounding switch of the upstream electrical cabinet or the downstream electrical cabinet, inserting the GS key into the corresponding auxiliary lock, and after the auxiliary lock secures the GS key, transferring state data to the auxiliary lock on the other electrical cabinet; and S3, once the auxiliary lock on the other electrical cabinet releases, the GS key being removed out of the corresponding auxiliary lock, such that a circuit breaker and a grounding switch of the other electrical cabinet can be operated. The control system is applied to the control method. The present invention can reduce operational complexity in powering on or prohibiting power-on to a downstream electrical cabinet from an upstream electrical cabinet, save the time for an operator to transfer GS keys between the upstream electrical cabinet and the downstream electrical cabinet, and improve the efficiency.

Description

A control method and system for feeding and breaking connection between upper and lower electrical cabinets TECHNICAL FIELD

[0001] The present application relates to the field of feeding and breaking connection between electrical cabinets, and particularly to a control method and system for feeding and breaking connection between upper and lower electrical cabinets. BACKGROUND

[0002] In a factory or a mining area, an electrical cabinet system is usually needed, which includes upper and lower electrical cabinets. The upper electrical cabinet feeds power to the lower electrical cabinet, so that the electrical equipment can obtain power from the upper electrical cabinet. As known, in the electrical cabinet system, the upper and lower electrical cabinets are both equipped with corresponding switch cabinets, which have circuit breakers and grounding switches. In order to ensure the normal operation of the electrical cabinet system and prevent dangerous situations such as short circuit, and to ensure the safety of the operating personnel, the switch cabinets usually have program locks that affect the opening and closing of the circuit breakers and the grounding switches. The program locks of the upper and lower electrical cabinets share the same GS key. The interlocking operation of the upper and lower electrical cabinets is as follows.

[0003] When the upper electrical cabinet feeds power to the lower electrical cabinet, the grounding switch of the lower electrical cabinet needs to be opened first, the GS key is removed from the program lock, and the circuit breaker can be shaken to the working position. Then the GS key is installed in the program lock of the upper electrical cabinet, the program lock is opened, the grounding switch of the upper electrical cabinet is opened, and the circuit breaker of the upper electrical cabinet is installed and shaken to the working position. In this way, the upper electrical cabinet feeds power to the lower electrical cabinet, avoiding dangerous situations such as short circuit due to the grounding switch of the lower electrical cabinet not being opened in time.

[0004] When the upper electrical cabinet or the lower electrical cabinet needs to be repaired, i.e. when the upper electrical cabinet is prohibited from feeding power to the lower electrical cabinet, the circuit breaker of the upper electrical cabinet needs to be opened and shaken to the open position first, then the grounding switch is closed, and then the GS key is removed to lock the grounding switch. Then the GS key is installed in the program lock of the lower electrical cabinet, the program lock is opened, the circuit breaker of the lower electrical cabinet is shaken to the open position, and then the grounding switch is closed.

[0005] As known from the above, whether during power feeding or during repair, the whole process is complicated and requires the operator to take the key from the lower electrical cabinet to the upper electrical cabinet, or from the upper electrical cabinet to the lower electrical cabinet. For a long distance between the upper and lower electrical cabinets, a long time is needed, which seriously affects the efficiency.

[0006] SUMMARY

[0007] The present application aims at the above-mentioned problems, and provides a control method and system for power transmission and interruption interlocking between upper and lower electrical cabinets, which can reduce the operation complexity of power transmission from the upper electrical cabinet to the lower electrical cabinet, save the time of the operator in transmitting the GS key between the upper and lower electrical cabinets, and improve the efficiency.

[0008] The technical scheme adopted by the present application is as follows: a control method for power transmission and interruption interlocking between upper and lower electrical cabinets, comprising the following steps:

[0009] S1: a GS key and a sub-lock capable of locking the GS key are matched for the program lock of the upper and lower electrical cabinets; the two sub-locks have wireless or wired communication to transmit data;

[0010] S2: after the circuit breaker and the grounding switch of the upper or lower electrical cabinet are operated, the GS key corresponding to the electrical cabinet is inserted into the sub-lock corresponding to the electrical cabinet, and the sub-lock transmits the state data of the locked GS key to the sub-lock of the other electrical cabinet after locking the GS key;

[0011] S3: the sub-lock of the other electrical cabinet is unlocked, and the GS key corresponding to the other electrical cabinet is taken out from the corresponding sub-lock, so that the circuit breaker and the grounding switch of the other electrical cabinet can be operated; the interlocking of power transmission and interruption between the upper and lower electrical cabinets is realized.

[0012] Further, the sub-lock of the other electrical cabinet provides feedback data for the sub-lock sending the state data after receiving the state data, and the feedback data is used as an instruction for the sub-lock to lock the GS key.

[0013] A control system applied to the control method for power transmission and interruption interlocking between upper and lower electrical cabinets, comprising an upper sub-lock installed on the upper electrical cabinet and a lower sub-lock installed on the lower electrical cabinet; the upper sub-lock and the lower sub-lock have the same structure, comprising a push-pull electromagnet, a first contact switch, and a lock body capable of matching with the GS key; the push-pull electromagnet has a core capable of moving linearly; the lock body has an inner core and an outer core capable of rotating relative to each other; the push-pull electromagnet, the first contact switch, and the outer core all have a mounting part for fixed connection with the electrical cabinet; the inner core has a disc, and the disc is provided with a limiting hole for inserting the core; the core is provided with an acting part capable of acting on the first contact switch, which can control the state of the first contact switch to switch between the off state and the closed state; the push-pull electromagnet and the first contact switch are connected to a controller in an electrical signal mode, and the controller has a data transmission module; the data transmission module of the upper sub-lock and the data transmission module of the lower sub-lock are connected through wireless or wired communication.

[0014] Further, the shell is further provided with a display screen, and the display screen is connected with the controller.

[0015] Further, the shell is further provided with a second contact switch, and the disc is provided with an action pin capable of acting on the second contact switch; when the inner core is rotated to an angle at which the GS key can be removed, the action pin can act on the second contact switch to make the second contact switch in a closed state; and the second contact switch is electrically connected with the controller.

[0016] Further, the shell is further provided with a third contact switch, and the disc is provided with an action pin capable of acting on the third contact switch; when the inner core is rotated to an angle at which the GS key can be removed, the action pin can act on the third contact switch to make the third contact switch in a closed state; and the second contact switch is electrically connected with the controller.

[0017] Further, the shell is further provided with a display screen, and the display screen is connected with the controller.

[0018] Further, the shell is further provided with a display screen, and the display screen is connected with the controller.

[0019] Further, the shell is further provided with a display screen, and the display screen is connected with the controller.

[0020] Further, the shell is further provided with a display screen, and the display screen is connected with the controller.

[0021] According to the technical scheme, the application has the following advantages:

[0022] The GS key can be locked by the auxiliary lock, and the locked state data of the GS key is transmitted to the auxiliary lock arranged on another level electrical cabinet; the auxiliary lock on the another level electrical cabinet is unlocked, and the corresponding GS key is taken out from the corresponding auxiliary lock, so that the circuit breaker and the grounding switch of another level can be operated, and the power transmission and power cut between the upper level electrical cabinet and the lower level electrical cabinet are interlocked; the operator does not need to transmit the GS key between the upper level electrical cabinet and the lower level electrical cabinet, the operation complexity of the upper level electrical cabinet transmitting power to the lower level electrical cabinet or prohibiting the transmission of power to the lower level electrical cabinet is reduced, time is saved, and efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be described by examples and with reference to the accompanying drawings.

[0024] Fig. 1 is a step flow chart of the control method disclosed by the application;

[0025] Fig. 2 is a state diagram when the control method disclosed by the application is in interlocking control;

[0026] Fig. 3 is a three-dimensional structural schematic diagram of the auxiliary lock disclosed in the present application;

[0027] Fig. 4 is a structural schematic diagram of the state of the auxiliary lock when the GS key is not locked by the auxiliary lock;

[0028] Fig. 5 is a structural schematic diagram of the state of the auxiliary lock when the GS key is locked by the auxiliary lock;

[0029] Fig. 6 is a structural schematic diagram of the outer side of the auxiliary lock;

[0030] Marked in the figure: 1 - housing; 2 - inner core; 3 - disc; 31 - action pin; 32 - limiting port; 4 - push-pull electromagnet; 41 - iron core; 5 - first contact switch; 6 - second contact switch; 7 - third contact switch; 8 - terminal; 9 - display screen; 10 - outer core. DETAILED DESCRIPTION

[0031] All features disclosed in this specification, and all steps of any methods or processes disclosed, can be combined in any manner, except where such a combination is not technically feasible.

[0032] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any other feature serving the same, or a similar, purpose.

[0033] Embodiment 1

[0034] As shown in Figs. 1-2, a control method for interlocking power transmission and power interruption between upper and lower electrical cabinets, comprising the following steps:

[0035] S1: a GS key and an auxiliary lock capable of locking the GS key are matched for the program lock of the upper and lower electrical cabinets; the two auxiliary locks have wireless or wired communication to transmit data;

[0036] S2: after the circuit breaker and grounding switch of the upper or lower electrical cabinet are operated, the GS key corresponding to the electrical cabinet is inserted into the auxiliary lock corresponding to the electrical cabinet, and after the auxiliary lock locks the GS key, the state data of the locked GS key is transmitted to the auxiliary lock of the other electrical cabinet;

[0037] S3: the auxiliary lock of the other electrical cabinet is unlocked, and the GS key corresponding to the other electrical cabinet is taken out of the corresponding auxiliary lock, so that the circuit breaker and grounding switch of the other electrical cabinet can be operated; the interlocking of power transmission and power interruption between the upper and lower electrical cabinets is realized.

[0038] In the embodiment, the whole process of the power transmission and cut-off interlock control between the upper and lower electrical cabinets is as follows. For the convenience of description, the auxiliary lock matched with the upper electrical cabinet is referred to as the upper auxiliary lock, the auxiliary lock matched with the lower electrical cabinet is referred to as the lower auxiliary lock, the GS key matched with the upper electrical cabinet is referred to as the upper GS key, and the GS key matched with the lower electrical cabinet is referred to as the lower GS key.

[0039] Power transmission: when the upper electrical cabinet transmits power to the lower electrical cabinet, in step S2, the grounding switch of the lower electrical cabinet is first opened, then the circuit breaker is installed in the working position, and the operation of the circuit breaker and the grounding switch of the lower electrical cabinet is completed; then the grounding switch is locked and the lower GS key is taken out, the lower GS key is inserted into the lower auxiliary lock, rotated to the locking position, the third contact switch 7 is triggered to act, the lower auxiliary lock locks the lower GS key, and the state data that the lower GS key has been locked is transmitted to the upper auxiliary lock through wired or wireless communication; in step S3, after the upper auxiliary lock obtains the state data that the lower GS key is locked, the upper auxiliary lock is unlocked, and the upper GS key can be taken out from the upper auxiliary lock; the upper GS key is installed on the program lock of the upper electrical cabinet, the program lock is opened, the grounding switch of the upper electrical cabinet is opened, the circuit breaker of the upper electrical cabinet is shaken to the working position, the operation of the circuit breaker and the grounding switch of the upper electrical cabinet is completed, the upper electrical cabinet transmits power to the lower electrical cabinet, and the danger of short circuit due to the grounding switch of the lower electrical cabinet not being opened in time is avoided.

[0040] Power cut-off: when the upper electrical cabinet or the lower electrical cabinet needs to be repaired, that is, when the upper electrical cabinet is prohibited to transmit power to the lower electrical cabinet, in step S2, the circuit breaker is first disconnected, the circuit breaker is shaken to the disconnected position, the grounding switch is closed, the upper GS key is locked in the closed position, the upper GS key is taken out and inserted into the lower auxiliary lock 10, rotated to the locking position, and the third contact switch 7 is triggered to act, the upper auxiliary lock locks the upper GS key, and the state data that the upper GS key has been locked is transmitted to the lower auxiliary lock through wired or wireless communication; in step S3, after the lower auxiliary lock obtains the state data that the upper GS key is locked, the lower auxiliary lock is unlocked, at this time the electromagnet of the upper auxiliary lock locks the locking piece 3, and the lower GS key can be taken out from the lower auxiliary lock; the lower GS key is installed on the program lock of the lower electrical cabinet, the program lock is opened, the circuit breaker of the lower electrical cabinet is shaken to the disconnected position, the grounding switch of the lower electrical cabinet is closed, the operation of the circuit breaker and the grounding switch of the lower electrical cabinet is completed, and the upper electrical cabinet cuts off the power of the lower electrical cabinet.

[0041] In the embodiment, if the communication mode is wireless communication mode, the communication protocol and other features are known in the art, and will not be described in detail in the specification. If the communication mode is wired communication mode, optical fiber communication mode can be used.

[0042] In summary, the control method disclosed in the embodiment does not require the operator to send the GS key between the upper electrical cabinet and the lower electrical cabinet, reduces the operation complexity of the upper electrical cabinet for sending power to or prohibiting sending power to the lower electrical cabinet, saves time, and improves efficiency.

[0043] Embodiment 2

[0044] On the basis of embodiment 1, a specific implementation mode is further proposed.

[0045] A feasible implementation mode is that the secondary lock on the other level electrical cabinet receives the state data and provides feedback data for the secondary lock sending the state data, the feedback data is used as an instruction for the secondary lock to lock the GS key, the feedback data is provided to further determine the secondary lock sending the state data to lock the GS key. More detailed description is given by taking the “power sending” interlocking in embodiment 1 as an example.

[0046] After the upper secondary lock obtains the state data transmitted by the lower secondary lock, the upper secondary lock generates a feedback data. The feedback data can be automatically generated by the secondary lock or determined by the operator to generate. The feedback data is transmitted to the lower secondary lock. After the lower secondary lock obtains the feedback data, the lower GS key is locked again to ensure that the lower GS key is locked by the lower secondary lock.

[0047] Embodiment 3

[0048] As shown in FIG. 1-6, the control system applied to the control method of the power transmission and interruption interlocking between the upper and lower electrical cabinets, comprising the upper auxiliary lock installed in the upper electrical cabinet, and the lower auxiliary lock installed in the lower electrical cabinet; the upper auxiliary lock and the lower auxiliary lock have the same structure, comprising the push-pull electromagnet 4, the first contact switch 5 and the lock body which can match with the GS key; the push-pull electromagnet 4 is the component commonly used in the field, and its specific structure will not be described in more detail, and it is noted that it has the iron core 41 which can move linearly, such as the EML type push-pull electromagnet 4; the lock body is the component commonly used in the field, and its specific structure will not be described in more detail, and it is noted that it has the inner core 2 and the outer core 10 which can rotate relative to each other, such as a mortise lock, and the inner core 2 has the keyhole for inserting the GS key; the push-pull electromagnet 4, the first contact switch 5 and the outer core 10 all have the mounting part which can be mounted on the upper electrical cabinet or / and the lower electrical cabinet; the inner core 2 has the disc 3, and the disc 3 is provided with the limiting port 32 for inserting the iron core 41; the linear movement of the iron core 41 realizes the insertion or withdrawal of the iron core 41 into the limiting port 32; the iron core 41 has the acting part which can act on the first contact switch 5, and can control the state of the first contact switch 5 to switch between the open and closed states, and the open and closed states of the first contact switch 5 reflect the position of the iron core 41 after moving, and further reflect whether the iron core 41 is in the limiting port 32 of the disc 3, so as to reflect whether the disc 3 fixed on the inner core 2 is in the active state, and further reflect whether the GS key can be taken out; the push-pull electromagnet 4 and the first contact switch 5 are electrically connected to the controller, the push-pull electromagnet 4 obtains the electric energy from the controller to work, and the first contact switch 5 transmits the state signal to the controller, and the controller obtains the state signal of whether the GS key is locked, and the controller has the data transmission module; the data transmission module of the upper auxiliary lock and the data transmission module of the lower auxiliary lock are connected through the wireless or wired communication, so as to realize the data transmission between the upper auxiliary lock and the lower auxiliary lock.

[0049] In the embodiment, the specific process of locking and unlocking the GS key by the upper auxiliary lock and the lower auxiliary lock is as follows.

[0050] Locking GS key, GS key is inserted into the lock body, GS key rotates the inner core 2 of the lock body, the inner core 2 rotates with the disc 3 to make the restriction port 32 be opposite to the iron core 41, the push-pull electromagnet 4 is controlled by the controller (preferably the controller is the power-off of the push-pull electromagnet 4), or the spring action of its own structure, the iron core 41 is inserted into the restriction port 32, the restriction port 32 is constrained, so that the inner core 2 cannot rotate to reset, and then the GS key is locked; at the same time when the iron core 41 is inserted into the restriction port 32, the first contact switch 5 changes from the closed state to the open state, the state of the first contact switch 5 changes, and the controller can consider that the GS key is locked through the state change, and then the state data of the locked GS key is transmitted to the controller in another secondary lock through the data transmission module.

[0051] It should be noted that for the feasible implementation mode proposed in embodiment 2, after the controller receives the feedback data, the controller controls the push-pull electromagnet 4 again (preferably the controller is the power-off of the push-pull electromagnet 4), to ensure that the iron core 41 can be inserted into the restriction port 32, so as to ensure that the GS key is locked.

[0052] Unlocking the GS key, after the controller obtains the state data of the locked GS key transmitted by the other secondary lock, the controller controls the push-pull electromagnet 4 to work (preferably the controller is the power supply of the push-pull electromagnet 4), the iron core 41 is translated out of the restriction port 32, the iron core 41 no longer restricts the disc 3, and the inner core 2 can rotate to the position where the GS key can be taken off (reset), that is, the GS key can be taken off.

[0053] In this embodiment, the state of the first contact switch 5 in the above content is changed from the closed state to the open state as a signal; according to actual needs, the open state can also be changed to the closed state as a signal.

[0054] In this embodiment, the controller can select a control device with a microprocessor, if the communication mode of the data transmission module adopts a wireless communication mode, its structure and the communication protocol adopted by the data transmission module are known in the art, and will not be described in detail in this specification; if the communication mode of the data transmission module adopts a wired communication mode, it can adopt an optical fiber communication mode.

[0055] Embodiment 4

[0056] On the basis of embodiment 3, further specific implementation modes are proposed.

[0057] A feasible embodiment is that the push-pull electromagnet 4 is installed between the first contact switch 5 and the disc 3; one end of the iron core 41 can be inserted into the limiting port 32, and the other end of the iron core 41 is the action part; after the push-pull electromagnet 4 obtains electricity, the iron core 41 moves to the first contact switch 5, pushes the first contact switch 5 to change from the open state to the closed state, and at the same time, the iron core 41 is separated from the limiting port 32; when the push-pull electromagnet 4 does not obtain electricity, the iron core 41 moves to the disc 3, is inserted into the limiting port 32 to limit the rotation of the disc 3, and at the same time, is separated from the first contact switch 5, so that the first contact switch 5 changes from the closed state to the open state.

[0058] A feasible embodiment further comprises a shell 1, the shell 1 is provided with a connecting hole for fixed connection with the electrical cabinet, the shell 1 is bent from a sheet metal part, and a bolt can pass through the connecting hole and the outer wall of the electrical cabinet to connect the shell with the electrical cabinet; the installation part of the push-pull electromagnet 4, the first contact switch 5 and the outer core 10 are fixedly connected with the shell 1; the box body is used for protecting the push-pull electromagnet 4 and other components, reducing environmental pollution and influence; the lock hole of the lock body is located outside the box body, and the GS key is convenient to insert into the inner core 2.

[0059] Example 5

[0060] On the basis of example 4, a feasible embodiment is further proposed.

[0061] A feasible embodiment is that the shell 1 is further provided with a second contact switch 6, the disc 3 is provided with an action pin 31 capable of acting on the second contact switch 6, when the inner core 2 rotates to an angle at which the GS key can be taken out, the action pin 31 can act on the second contact switch 6 to make the second contact switch 6 in the closed state; the second contact switch 6 is electrically connected with the controller; whether the second contact switch 6 is in the closed state or not, further accurate state data of the state of the GS key is provided for the controller, that is, when the first contact switch 5 is in the closed state and the second contact switch 6 is in the closed state, it is indicated that the GS key is not locked and can be taken out; the operator cannot perform the next action on the next level electrical cabinet.

[0062] A feasible implementation, the third contact switch 7 is further installed in the shell 1, the disc 3 is provided with the action pin 31 capable of acting on the third contact switch 7, and the action pin 31 can be the action pin 31 acting on the second contact switch 6; when the inner core 2 rotates to the limiting port 32 being opposite to the iron core 41, the action pin 31 can act on the third contact switch 7 to make the third contact switch 7 in the closed state; the second contact switch 6 is electrically connected with the controller; on the one hand, whether the third contact switch 7 is in the closed state further provides the controller with accurate GS key state data, that is, the first contact switch 5 is in the open state, and the third contact switch 7 is in the closed state, which indicates that the GS key is locked and cannot be taken out, and the operator can not perform the next action on another level electrical cabinet; on the other hand, after the action pin 31 promotes the third contact switch 7 to be closed, the controller obtains the signal and interrupts the push-pull electromagnet 4, the iron core 41 can be inserted into the limiting port 32, and the third contact switch 7 can be used as a signal basis for whether the push-pull electromagnet 4 works.

[0063] A feasible implementation, the outer surface of the shell 1 is further provided with a display screen 9, the display screen 9 is connected with the controller, and the display screen 9 displays whether the GS key is in the locked state, to provide intuitive basis for the operator.

[0064] It should be noted that the display screen 9 can be a touch screen, which is convenient for the operator to determine the feedback data.

[0065] A feasible implementation, the box body is provided with a wiring terminal 8 connected with the controller, the controller is connected with the wiring terminal 8, and the wiring terminal 8 is connected with the first contact switch 5, the push-pull electromagnet 4, the second contact switch 6 and the third contact switch 7, so as to reduce the disorder degree of wiring and make the sublock neat and beautiful.

[0066] A feasible implementation, the shell 1 is provided with a heat dissipation hole, heat in the box body can be dissipated, so that the temperature in the box body is at a normal temperature, to provide a stable environment for the connection of the first contact switch 5, the push-pull electromagnet 4, the second contact switch 6 and the third contact switch 7; it should be noted that the heat in the box body mainly comes from the heat generated by the self-resistance of the first contact switch 5, the second contact switch 6 and the third contact switch 7 when they are closed, and the heat generated by the self-resistance of the push-pull electromagnet 4 after obtaining electric energy.

[0067] A feasible implementation, the controller is electrically connected to a power supply, which can be a storage battery or an external power grid; the power supply provides electric energy for the controller, to ensure that the controller and the push-pull electromagnet 4 can work normally.

[0068] The application is not restricted to the foregoing specific embodiments. The application extends to any novel one, or any novel combination, of the features disclosed in this specification, and to any novel method or process disclosed in this specification or any novel combination thereof.

Claims

1. A control method for interlocking power supply and power supply between upper and lower level electrical cabinets, characterized by: The following steps are involved: S1: The program locks of the upper and lower electrical cabinets are equipped with a GS key and a secondary lock that can lock the GS key; There is wireless or wired communication between the two secondary locks to transmit data; S2: After operating the circuit breaker or grounding switch of the upper or lower electrical cabinet, insert the GS key corresponding to the electrical cabinet at that level into the secondary lock corresponding to the electrical cabinet at that level. After the secondary lock locks the GS key, the GS key locked status data is transmitted to the secondary lock on the other electrical cabinet. S3: The secondary lock on the other level electrical cabinet is unlocked, and the GS key corresponding to the other level electrical cabinet is taken out from the corresponding secondary lock, and the circuit breaker and grounding switch of the other level electrical cabinet can be operated; Realize the interlocking of power supply and power off between the upper and lower electrical cabinets.

2. The control system according to claim 1, characterized in that: After receiving the status data, the secondary lock on the other level electrical cabinet provides feedback data to the secondary lock that sent the status data. The feedback data serves as an instruction for the secondary lock to lock the GS key.

3. A control system applied to the control method for interlocking power supply and power supply between upper and lower level electrical cabinets according to any one of claims 1-2, characterized in that: It includes an upper secondary lock installed on an upper electrical cabinet, and a lower secondary lock installed on a lower electrical cabinet; The upper secondary lock and the lower secondary lock have the same structure, comprising a push-pull electromagnet (4), a first contact switch (5) and a lock body that can match a GS key, wherein the push-pull electromagnet (4) has an iron core (41) that can move linearly; the lock body has an inner core (2) and an outer core (10) that can rotate relative to each other; the push-pull electromagnet (4), the first contact switch (5) and the outer core (10) all have a mounting portion for fixed connection with an electrical cabinet; the inner core (2) has a disc (3), and the disc (3) is provided with a limiting opening (32) for inserting the iron core (41); the iron core (41) has an action portion that can act on the first contact switch (5) and can control the state of the first contact switch (5) to switch between open and closed; the push-pull electromagnet (4) and the first contact switch (5) are both electrically connected to a controller, and the controller has a data transmission module; the data transmission module of the upper secondary lock and the data transmission module of the lower secondary lock are connected via wireless or wired communication.

4. The control system according to claim 3, characterized in that: The device further comprises a housing (1), wherein a connection hole for fixed connection to an electrical cabinet is provided on the housing (1); the push-pull electromagnet (4), the first contact switch (5) and the mounting portion of the outer core (10) are all fixedly connected to the housing (1); and the lock hole of the lock body is located outside the box body.

5. The control system according to claim 4, characterized in that: A second contact switch (6) is also installed in the housing (1); an action pin (31) capable of acting on the second contact switch (6) is provided on the disc (3); when the inner core (2) is rotated to an angle at which the GS key can be removed, the action pin (31) can act on the second contact switch (6) so that the second contact switch (6) is in a closed state; and the second contact switch (6) is electrically connected to the controller.

6. The control system according to claim 4, characterized in that: A third contact switch (7) is also installed in the housing (1); an action pin (31) capable of acting on the third contact switch (7) is provided on the disc (3); when the inner core (2) rotates to the point where the restriction opening (32) is directly opposite the iron core (41), the action pin (31) can act on the third contact switch (7) so that the third contact switch (7) is in a closed state; and the second contact switch (6) is electrically connected to the controller.

7. The control system according to claim 4, characterized in that: The outer surface of the housing (1) is also provided with a display screen (9), which is connected to the controller.

8. The control system according to claim 4, characterized in that: The box body is provided with a connection terminal (8) for connecting to a controller.

9. The control system according to claim 4, characterized in that: The housing (1) is provided with heat dissipation holes.

10. The control system according to any one of claims 3 to 9, characterized in that: The controller is electrically connected to a power source.

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