CN212304451U - A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet - Google Patents
A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet Download PDFInfo
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- CN212304451U CN212304451U CN202022000188.3U CN202022000188U CN212304451U CN 212304451 U CN212304451 U CN 212304451U CN 202022000188 U CN202022000188 U CN 202022000188U CN 212304451 U CN212304451 U CN 212304451U
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Abstract
The utility model discloses a locking control system of a bus-tie switch cabinet handcart and a bus-tie isolation cabinet handcart, which controls an executive component of a first locking device to lock a handcart crank operating handle of the bus-tie switch cabinet handcart when the bus-tie isolation cabinet handcart is in a non-working position through an inductive component of the first locking device, and unlocks otherwise; and when the bus-bar switch cabinet handcart is in the working position, the sensing element of the second locking device controls the executing element of the second locking device to lock the handcart crank operating handle of the bus-bar isolation cabinet handcart, and otherwise, the handcart crank operating handle is unlocked. The bus-tie isolation cabinet handcart can be moved to a test position by a working position only when the bus-tie switch cabinet handcart is in the test position, the bus-tie switch cabinet handcart can be moved to the working position by the test position only when the bus-tie isolation cabinet handcart is in the working position, the interlocking of the moving positions between the bus-tie switch cabinet handcart and the bus-tie isolation cabinet handcart is realized, and the operation accidents caused by misoperation of workers are avoided.
Description
Technical Field
The utility model relates to a high tension switchgear safe operation technical field especially relates to a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with.
Background
In an electric power system, in order to ensure the safe operation of an electric power network, a switch cabinet must be provided with a perfect and reliable interlocking device so as to ensure the correctness of an equipment operation program and the safety of a human body and prevent the occurrence of misoperation accidents.
At present, an electrical interlocking mode or a mechanical interlocking mode and an electrical interlocking mode are generally adopted between a switch cabinet and a switch cabinet of a high-voltage switch cabinet to realize the five-prevention locking function of the switch cabinet. However, due to the fact that operation is complex or the failure rate is high, some locking devices are detached, some locking devices are not used and maintained properly, and some locking devices are not reliable due to incomplete functional design, certain potential safety hazards exist in switching operation and operation of the switch cabinet.
The isolation between two sections of high-voltage buses, namely a handcart type switch cabinet or a knife switch type switch cabinet, is provided with a bus coupler switch cabinet and a bus coupler isolation cabinet, and has two functions, namely, for convenience in maintenance, when one section of bus of a transformer substation is maintained and the other section of bus runs, if no isolation cabinet exists, the upper contact or the lower contact is electrified inside the bus coupler switch, so that thorough maintenance cannot be realized; secondly, if two sections of buses at the bus connection position are connected into a bus connection cabinet in order to turn over the bus, the buses may not be connected when the section of each bus is large, and the buses need to be connected through an isolation cabinet. For a handcart type switch cabinet, the handcart type bus tie isolation cabinet does not have a special arc extinguishing device and cannot be used for switching on or switching off load current, and when the bus tie isolation cabinet handcart moves between a test position and a working position, the bus tie switch cabinet handcart must be ensured to be at the test position. That is to say, for preventing to pull out the handcart cabinet with load and cause the operating accident, when the bus-tie cubical switchboard handcart is at the operating position, can not remove the bus-tie isolated cabinet handcart between experimental position and operating position.
However, when the experience of the staff is insufficient and the operation is not standard, the bus tie switch cabinet handcart and the bus tie isolation cabinet handcart may be operated by mistake, and a safety accident may be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with for realize the interlocking of mobile position between female cubical switchboard handcart and the female isolation cabinet handcart that allies oneself with, avoid because of the operation accident that staff's maloperation causes.
In order to solve the technical problem, the utility model provides a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with, include: a first latching device and a second latching device;
the induction part of the first locking device is arranged on the bus-coupled isolation cabinet handcart, and the execution part of the first locking device is arranged on the bus-coupled switch cabinet handcart; when the bus-bar isolation cabinet handcart is in a non-working position, the sensing part of the first locking device controls the action of the executing part of the first locking device for locking the handcart crank handle operating handle of the bus-bar isolation cabinet handcart; when the bus-bar switch cabinet handcart is in a working position, the induction part of the first locking device controls the execution part of the first locking device to unlock a handcart crank handle operating handle of the bus-bar switch cabinet handcart;
the induction part of the second locking device is arranged on the bus-coupled switch cabinet handcart, and the execution part of the second locking device is arranged on the bus-coupled isolation cabinet handcart; when the bus-bar switch cabinet is in a working position, the sensing piece of the second locking device controls the actuating piece of the second locking device to lock the handcart crank handle operating handle of the handcart of the bus-bar isolation cabinet; when the bus coupler switch cabinet handcart is at a test position, the sensing piece of the second locking device controls the executing piece of the second locking device to unlock the handcart crank operating handle of the bus coupler isolation cabinet handcart.
Optionally, the sensing element of the first latching device and the sensing element of the second latching device are both specifically travel switches.
Optionally, the sensing element of the first locking device is specifically arranged at a chassis position of the bus-coupled isolation cabinet handcart, so that when the bus-coupled isolation cabinet handcart reaches a working position, the sensing element of the first locking device touches the metal baffle at the working position of the bus-coupled isolation cabinet handcart, and a contact inside the sensing element of the first locking device is closed;
the inductive part of the second locking device is specifically arranged at the chassis position of the bus-coupled switch cabinet handcart, so that when the bus-coupled switch cabinet handcart reaches a test position, the inductive part of the second locking device touches the metal baffle at the working position of the bus-coupled switch cabinet handcart, and the contact inside the inductive part of the second locking device is closed.
Optionally, the actuating element of the first locking device and the actuating element of the second locking device are both specifically electromagnets.
Optionally, the actuating element of the first locking device is specifically arranged at the chassis position of the handcart of the bus-coupled switch cabinet, and when the sensing element of the first locking device loses power, the actuating element of the first locking device abuts against a clamping strip below the chassis of the handcart of the bus-coupled switch cabinet so as to lock the handcart crank operating handle of the handcart of the bus-coupled switch cabinet; when the sensing piece of the first locking device is electrified, the actuating piece of the first locking device is released to unlock a handcart crank operating handle of the bus-coupled switch cabinet handcart, so that the bus-coupled switch cabinet handcart is moved from a test position to a working position;
the actuating piece of the second locking device is specifically arranged at the chassis position of the handcart of the bus-coupled isolation cabinet, and when the sensing piece of the second locking device is powered off, the actuating piece of the second locking device props against a clamping strip below the chassis of the handcart of the bus-coupled isolation cabinet so as to lock the handcart crank operating handle of the handcart of the bus-coupled isolation cabinet; when the sensing piece of the second locking device is electrified, the actuating piece of the second locking device is released to unlock the handcart crank operating handle of the bus-coupled isolation cabinet handcart, so that the bus-coupled isolation cabinet handcart is moved to a test position from a working position.
Optionally, the emergency unlocking device further comprises a first emergency unlocking device which is arranged on the executing part of the first locking device and used for unlocking the executing part of the first locking device, and a second emergency unlocking device which is arranged on the executing part of the second locking device and used for unlocking the executing part of the second locking device.
Optionally, the system further comprises a direct current breaker;
a first end of a first contact of the direct current circuit breaker is connected with a positive electrode of a direct current power supply, and a second end of the first contact of the direct current circuit breaker is connected with a first end of the first locking device and a first end of the second locking device; and the first end of the second contact of the direct current circuit breaker is connected with the negative electrode of the direct current power supply, and the second end of the second contact of the direct current circuit breaker is connected with the second end of the first locking device and the second end of the second locking device.
The utility model provides a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with, include: a first latching device and a second latching device. When the bus-bar switch cabinet handcart is in a non-working position, an actuating element of the first locking device is controlled by an induction element of the first locking device to lock a handcart crank operating handle of the bus-bar switch cabinet handcart, otherwise, the handcart is unlocked; and when the bus-bar switch cabinet handcart is in the working position, the sensing element of the second locking device controls the executing element of the second locking device to lock the handcart crank operating handle of the bus-bar isolation cabinet handcart, and otherwise, the handcart crank operating handle is unlocked. The bus-tie isolation cabinet handcart can be moved to a test position by a working position only when the bus-tie switch cabinet handcart is in the test position, the bus-tie switch cabinet handcart can be moved to the working position by the test position only when the bus-tie isolation cabinet handcart is in the working position, the interlocking of the moving positions between the bus-tie switch cabinet handcart and the bus-tie isolation cabinet handcart is realized, and the operation accidents caused by misoperation of workers are avoided.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of connection of a primary power supply system of a bus tie switch cabinet handcart and a bus tie isolation cabinet handcart in the prior art;
fig. 2 is a circuit diagram of a locking control system of a bus tie switch cabinet handcart and a bus tie isolation cabinet handcart provided by the embodiment of the utility model;
wherein 101 is a bus-coupled switch cabinet handcart, and 102 is a bus-coupled isolation cabinet handcart.
Detailed Description
The core of the utility model is to provide a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with for realize the interlocking of mobile position between female cubical switchboard handcart and the female isolation cabinet handcart that allies oneself with, avoid because of the operation accident that staff's maloperation causes.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic diagram of connection of a primary power supply system of a bus tie switch cabinet handcart and a bus tie isolation cabinet handcart in the prior art; fig. 2 is a circuit diagram of a locking control system of a bus tie switch cabinet handcart and a bus tie isolation cabinet handcart, which is provided by the embodiment of the utility model.
As shown in fig. 1, a bus-coupled switch cabinet handcart 101 is located on the side of a second-segment bus, a bus-coupled isolation cabinet handcart 102 is located on the side of a first-segment bus, and a bus-coupled breaker QF is arranged in the bus-coupled switch cabinet handcart 101. Through operation bus tie cubical switchboard and bus tie isolation cabinet, can establish the electric connection between I, II two sections generating lines.
The power outage and transmission operation procedure of the high-voltage I and II two-section bus connection cabinet is described as follows by combining the figure 1:
and (3) power failure operation program: firstly, disconnecting a bus tie breaker QF of a bus tie switch cabinet handcart 101; secondly, shaking the bus coupler switch cabinet handcart 101 from a working position to a test position; and thirdly, shaking the bus coupler isolation cabinet handcart 102 from the working position to the testing position.
A power transmission operation program: firstly, shaking the bus coupler isolation cabinet handcart 102 from a test position to a working position; secondly, shaking the bus coupler switch cabinet handcart 101 from a test position to a working position; and thirdly, closing the bus tie breaker QF of the bus tie switch cabinet handcart 101.
The bus tie breaker QF can be moved to a test position from a working position and also can be moved to an overhaul position from the test position on a bus tie switch cabinet handcart 101. The bus-bar copper bar connecting the upper and lower groups (three in each group) of conductive contacts in the bus-bar isolation cabinet is arranged on the bus-bar isolation cabinet handcart 102, and can also be moved to a test position from a working position or moved to an overhaul position from the test position. The bus-coupled switch cabinet handcart 101 and the bus-coupled isolation cabinet handcart 102 have three positions, and can move among the three positions according to working requirements.
The completion condition of each operation of power cut and power transmission can be monitored and confirmed by a switch state comprehensive monitoring device, a microcomputer protection measurement and control device or a background monitoring microcomputer.
As shown in fig. 2, the embodiment of the utility model provides a shutting control system of bus tie cubical switchboard handcart and bus tie isolation cabinet handcart includes: a first latching device and a second latching device;
the sensing part S1 of the first locking device is arranged on the bus-coupled isolation cabinet handcart 102, and the executing part of the first locking device is arranged on the bus-coupled switch cabinet handcart 101; when the bus tie isolation cabinet handcart 102 is in a non-working position (such as a test position or an overhaul position), the sensing piece S1 of the first locking device controls the execution piece of the first locking device to lock the handcart crank handle operation handle of the bus tie switch cabinet handcart 101; when the bus-tie isolation cabinet handcart 102 is in a working position, the sensing piece S1 of the first locking device controls the execution piece of the first locking device to be electrified, so that a handcart crank operating handle of the bus-tie switch cabinet handcart 101 is unlocked;
the sensing piece S2 of the second locking device is arranged on the bus-coupled switch cabinet handcart 101, and the executing piece of the second locking device is arranged on the bus-coupled isolation cabinet handcart 102; when the bus tie switch cabinet 101 is in the working position, the sensing piece S2 of the second locking device controls the actuating piece of the second locking device to lock the operation handle of the handcart crank handle of the bus tie isolation cabinet handcart 102; when the bus tie switch cabinet handcart 101 is in a test position, the sensing piece S2 of the second locking device controls the execution piece of the second locking device to be electrified, so that the handcart crank operating handle of the bus tie isolation cabinet handcart 102 is unlocked.
In a specific implementation, the first locking device and the second locking device can adopt an electric control locking device, namely, the action or the position of the actuating member is controlled by the power on or off of the sensing member.
The sensing piece S1 of the first locking device and the sensing piece S2 of the second locking device can adopt travel switches, and the sensing piece S1 of the first locking device can be installed at the chassis position of the handcart 102 of the bus-coupled isolation cabinet, so that when the handcart 102 of the bus-coupled isolation cabinet reaches the working position, the sensing piece S1 of the first locking device touches a metal baffle at the working position of the handcart 102 of the bus-coupled isolation cabinet, and the contact inside the sensing piece S1 of the first locking device is closed. The sensing piece S2 of the second locking device is installed at the chassis position of the bus-coupled switch cabinet handcart 101, so that when the bus-coupled switch cabinet handcart 101 reaches a test position, the sensing piece S2 of the second locking device touches a metal baffle at the test position of the bus-coupled switch cabinet handcart 101, and a contact inside the sensing piece S2 of the second locking device is closed. When the contact in the travel switch is closed, the element in the branch where the contact is located is triggered to be electrified, and then the action is executed.
The actuating member of the first locking device and the actuating member of the second locking device can both adopt electromagnets. The electromagnet comprises an electromagnetic coil, an electromagnet iron core, an electromagnet lock pin, an electromagnet body metal frame, an emergency mechanical unlocking lockset and the like. The electromagnet core of the electromagnet is controlled to be magnetized or not by electrifying and losing the electromagnet coil of the electromagnet, and then the moving position of the electromagnet lock pin is controlled, so that the electromagnet is locked and unlocked. When the electromagnetic coil in the execution part of the locking device is electrified, the electromagnetic lock pin in the execution part of the locking device is attracted, so that unlocking is realized.
As shown in FIG. 2, the sensing member S1 of the first latch device can be connected in series with the electromagnetic coil 1DS1 of the actuating member of the first latch device, the sensing member S2 of the second latch device can be connected in series with the electromagnetic coil 1DS2 of the actuating member of the second latch device, and then the branch of the first latch device and the branch of the second latch device are connected in parallel and then connected in series with both sides of the DC power supply (+ KM/KM). The DC power supply (+ KM/-KM) may employ 220V DC power supply.
In practical application, the actuating element of the first locking device may be disposed at a chassis position of the handcart 101 of the bus-coupled switch cabinet, and when the sensing element S1 of the first locking device loses power, the actuating element of the first locking device abuts against a clamping bar below the chassis of the handcart 101 of the bus-coupled switch cabinet so as to lock the handcart crank operating handle of the handcart 101 of the bus-coupled switch cabinet; when the sensing piece S1 of the first locking device is electrified, the actuating piece of the first locking device is released to unlock a handcart crank operating handle of the bus-coupled switch cabinet handcart 101, so that the bus-coupled switch cabinet handcart 101 is moved from the test position to the working position. Similarly, the actuating element of the second locking device is arranged at the chassis position of the bus-coupled isolation cabinet handcart 102, and when the sensing element S2 of the second locking device loses power, the actuating element of the second locking device butts against the clamping strip below the chassis of the bus-coupled isolation cabinet handcart 102 so as to lock the handcart crank operating handle of the bus-coupled isolation cabinet handcart 102; when the sensing piece S2 of the second locking device is electrified, the actuating piece of the second locking device is released to unlock the handcart crank operating handle of the bus-coupled isolation cabinet handcart 102, so that the bus-coupled isolation cabinet handcart 102 can be moved from the working position to the testing position.
For the first locking device and the second locking device, when an induction part of the locking device loses power, an execution part of the locking device props against a clamping strip below a chassis of the handcart cabinet, and a corresponding mechanism connecting rod enables a handcart crank operating hole pressing plate to be incapable of being pressed down, so that a handcart crank operating handle of the handcart cabinet cannot enter an operating hole, the handcart cabinet cannot be operated by being shaken in and out, and the locking of the handcart cabinet is realized; when the sensing piece of the locking device is electrified, the actuating piece of the locking device is released to unlock the handcart crank operating handle of the corresponding handcart cabinet.
For avoiding causing the circumstances that circuit mistake shutting, unable unblock because of the circuit damage (if the electromagnetism coil burns out, the circumstances such as electromagnet lockpin action failure) or sensitivity reduces, the embodiment of the utility model provides a shutting control system of female allies oneself with cubical switchboard handcart and female allies oneself with the isolation cabinet handcart can also carry out the first urgent unlocking device of unblock to the executive component of first blocking device including the executive component who locates first blocking device to and locate the second blocking device's executive component be used for carrying out the urgent unlocking device of second of unblock to the executive component of second blocking device. The emergency unlocking device can be characterized in that an executing part of the locking device is connected to the outside of the handcart cabinet through a mechanical transmission structure, and a button, a knob, a rocker or a key hole are reserved so that the executing part of the locking device can be driven to unlock through the mechanical transmission structure when mechanical trigger is received.
The embodiment of the utility model provides a shutting control system of female cubical switchboard handcart and female isolation cabinet handcart that allies oneself with, include: a first latching device and a second latching device. When the bus-bar switch cabinet handcart is in a non-working position, an actuating element of the first locking device is controlled by an induction element of the first locking device to lock a handcart crank operating handle of the bus-bar switch cabinet handcart, otherwise, the handcart is unlocked; and when the bus-bar switch cabinet handcart is in the working position, the sensing element of the second locking device controls the executing element of the second locking device to lock the handcart crank operating handle of the bus-bar isolation cabinet handcart, and otherwise, the handcart crank operating handle is unlocked. The bus-tie isolation cabinet handcart can be moved to a test position by a working position only when the bus-tie switch cabinet handcart is in the test position, the bus-tie switch cabinet handcart can be moved to the working position by the test position only when the bus-tie isolation cabinet handcart is in the working position, the interlocking of the moving positions between the bus-tie switch cabinet handcart and the bus-tie isolation cabinet handcart is realized, and the operation accidents caused by misoperation of workers are avoided.
On the basis of the above embodiment, in order to further improve the safety factor of the handcart 101 of the bus-coupled switch cabinet and the handcart 102 of the bus-coupled isolation cabinet, as shown in fig. 2, the locking control system of the handcart 101 of the bus-coupled switch cabinet and the handcart 102 of the bus-coupled isolation cabinet provided by the embodiment of the present invention may further include a dc circuit breaker 1 DK;
a first end of a first contact of the direct current breaker 1DK is connected with a positive electrode (+ KM) of a direct current power supply, and a second end of the first contact of the direct current breaker 1DK is connected with a first end of a first locking device and a first end of a second locking device; a first end of a second contact of the dc breaker 1DK is connected to a negative pole (-KM) of the dc power source, and a second end of the second contact of the dc breaker 1DK is connected to a second end of the first latch and a second end of the second latch.
In a specific implementation, the direct current breaker 1DK can be a 2P type miniature breaker.
The sensing member S1 of the first latch device and the electromagnetic coil 1DS1 of the actuating member of the first latch device are connected in series between the first end of the first latch device and the second end of the first latch device; the sensing member S2 of the second latch device and the solenoid coil 1DS2 of the actuating member of the second latch device are connected in series between the first end of the second latch device and the second end of the second latch device.
By providing the dc power switch 1DK, the blocking effectiveness of the first blocking device and the blocking effectiveness of the second blocking device can be controlled. The actuating member of the first locking device and the actuating member of the second locking device both adopt an electric unlocking mechanism, that is, when the dc circuit breaker 1DK is closed, the first locking device and the second locking device can realize the locking and unlocking control described in the above embodiment; when the direct current circuit breaker 1DK is opened, both the first and second locking devices fail, and both the actuating member of the first locking device and the actuating member of the second locking device are in a power-off state, i.e., remain in a locked state.
Based on the utility model provides a female shutting control system who allies oneself with cubical switchboard handcart and female isolation cabinet handcart that allies oneself with to and the power transmission and cut off operation procedure of two sections generating line contact cabinets of high pressure I, II that mention in the above-mentioned embodiment, the utility model provides a female shutting control method who allies oneself with cubical switchboard handcart and female isolation cabinet handcart that allies oneself with specifically includes:
closing the dc breaker.
And (3) power failure operation: after the bus tie breaker QF is disconnected, the bus tie switch cabinet handcart 101 is shaken to a test position from a working position, an executing part of the second locking device releases locking, and then the bus tie isolation cabinet handcart 102 is shaken to the test position from the working position.
Power transmission operation: the bus-coupled isolation cabinet handcart 102 is shaken from a test position to a working position, an executing part of the first locking device releases locking, the bus-coupled switch cabinet handcart 101 is shaken from the test position to the working position, and the bus-coupled circuit breaker QF is closed.
The operation completion condition of each step can be monitored and confirmed by a switch state comprehensive monitoring device, a microcomputer protection measurement and control device or a background monitor.
It is right above the utility model provides a female shutting control system who allies oneself with cubical switchboard handcart and female isolation cabinet handcart that allies oneself with introduces in detail. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. The utility model provides a shutting control system of bus tie cubical switchboard handcart and bus tie isolation cabinet handcart which characterized in that includes: a first latching device and a second latching device;
the induction part of the first locking device is arranged on the bus-coupled isolation cabinet handcart, and the execution part of the first locking device is arranged on the bus-coupled switch cabinet handcart; when the bus-bar isolation cabinet handcart is in a non-working position, the sensing part of the first locking device controls the action of the executing part of the first locking device for locking the handcart crank handle operating handle of the bus-bar isolation cabinet handcart; when the bus-bar switch cabinet handcart is in a working position, the induction part of the first locking device controls the execution part of the first locking device to unlock a handcart crank handle operating handle of the bus-bar switch cabinet handcart;
the induction part of the second locking device is arranged on the bus-coupled switch cabinet handcart, and the execution part of the second locking device is arranged on the bus-coupled isolation cabinet handcart; when the bus-bar switch cabinet is in a working position, the sensing piece of the second locking device controls the actuating piece of the second locking device to lock the handcart crank handle operating handle of the handcart of the bus-bar isolation cabinet; when the bus coupler switch cabinet handcart is at a test position, the sensing piece of the second locking device controls the executing piece of the second locking device to unlock the handcart crank operating handle of the bus coupler isolation cabinet handcart.
2. The latching control system of claim 1, wherein the sensing member of the first latching device and the sensing member of the second latching device are each embodied as travel switches.
3. The locking control system according to claim 2, wherein the sensing member of the first locking device is specifically arranged at a chassis position of the bus-coupled isolation cabinet handcart, so that when the bus-coupled isolation cabinet handcart reaches a working position, the sensing member of the first locking device touches the metal baffle at the working position of the bus-coupled isolation cabinet handcart, and a contact inside the sensing member of the first locking device is closed;
the inductive part of the second locking device is specifically arranged at the chassis position of the bus-coupled switch cabinet handcart, so that when the bus-coupled switch cabinet handcart reaches a test position, the inductive part of the second locking device touches the metal baffle at the working position of the bus-coupled switch cabinet handcart, and the contact inside the inductive part of the second locking device is closed.
4. Locking control system according to claim 1, characterized in that the actuating member of the first locking device and the actuating member of the second locking device are embodied as electromagnets.
5. The locking control system according to claim 4, characterized in that the actuating member of the first locking device is specifically arranged at a chassis position of the handcart of the bus-bar switch cabinet, and when the sensing member of the first locking device is powered off, the actuating member of the first locking device abuts against a clamping strip below the chassis of the handcart of the bus-bar switch cabinet so as to lock the handcart crank handle operating handle of the handcart of the bus-bar switch cabinet; when the sensing piece of the first locking device is electrified, the actuating piece of the first locking device is released to unlock a handcart crank operating handle of the bus-coupled switch cabinet handcart, so that the bus-coupled switch cabinet handcart is moved from a test position to a working position;
the actuating piece of the second locking device is specifically arranged at the chassis position of the handcart of the bus-coupled isolation cabinet, and when the sensing piece of the second locking device is powered off, the actuating piece of the second locking device props against a clamping strip below the chassis of the handcart of the bus-coupled isolation cabinet so as to lock the handcart crank operating handle of the handcart of the bus-coupled isolation cabinet; when the sensing piece of the second locking device is electrified, the actuating piece of the second locking device is released to unlock the handcart crank operating handle of the bus-coupled isolation cabinet handcart, so that the bus-coupled isolation cabinet handcart is moved to a test position from a working position.
6. The latch control system of claim 1 further comprising a first emergency unlatching means provided to the actuating member of the first latch for unlatching the actuating member of the first latch, and a second emergency unlatching means provided to the actuating member of the second latch for unlatching the actuating member of the second latch.
7. The latch control system of claim 1 further comprising a dc circuit breaker;
a first end of a first contact of the direct current circuit breaker is connected with a positive electrode of a direct current power supply, and a second end of the first contact of the direct current circuit breaker is connected with a first end of the first locking device and a first end of the second locking device; and the first end of the second contact of the direct current circuit breaker is connected with the negative electrode of the direct current power supply, and the second end of the second contact of the direct current circuit breaker is connected with the second end of the first locking device and the second end of the second locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022000188.3U CN212304451U (en) | 2020-09-14 | 2020-09-14 | A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022000188.3U CN212304451U (en) | 2020-09-14 | 2020-09-14 | A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet |
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| CN212304451U true CN212304451U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022000188.3U Expired - Fee Related CN212304451U (en) | 2020-09-14 | 2020-09-14 | A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952880A (en) * | 2020-09-14 | 2020-11-17 | 山东钢铁股份有限公司 | A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet |
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2020
- 2020-09-14 CN CN202022000188.3U patent/CN212304451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952880A (en) * | 2020-09-14 | 2020-11-17 | 山东钢铁股份有限公司 | A locking control system for the handcart of the bus tie switch cabinet and the handcart of the bus tie isolation cabinet |
| CN111952880B (en) * | 2020-09-14 | 2025-09-16 | 山东钢铁股份有限公司 | Locking control system of bus-connected switch cabinet handcart and bus-connected isolation cabinet handcart |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |