CN114360310A - Main transformer circuit replacing current transformer loop switching training device - Google Patents
Main transformer circuit replacing current transformer loop switching training device Download PDFInfo
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Abstract
The application relates to a main circuit-replacing current transformer loop switching training device, which simulates the main circuit-replacing current transformer loop switching operation by the switching of a first connecting piece, wherein the first end of a second conductive column and the first end of a third conductive column are in short circuit, and a power supply is connected between the first end of the first conductive column and the first end of the second conductive column. When a user dials the first connecting piece to enable the first end of the first conductive column to be communicated with the first end of the second conductive column, a closed loop can be formed. And when the user stirs the first connecting piece to enable the first end of the first conductive column to be communicated with the first end of the third conductive column, another closed loop is formed. The switching operation of the first connecting piece is utilized to simulate the switching of the main transformer circuit, the learning of the switching operation technology of the main transformer circuit can be carried out at any time and any place, and when an operation error causes the two closed circuits to be disconnected, the alarm prompt operation can be realized, so that the high learning reliability is realized.
Description
Technical Field
The application relates to the technical field of electronic power, in particular to a main transformer circuit switching training device for a current transformer.
Background
The transformer substation with the bypass wiring mode is characterized in that when a main transformer switch is in power failure maintenance, the bypass switch is often used for replacing a main transformer and a variable-height (or variable-middle) switch to operate, so that the normal operation of the main transformer is ensured, and the power failure range is reduced. The Current at the side of the main Transformer protection variable height/variable middle is taken from a Current Transformer (CT) at the position of a main Transformer variable height/variable middle switch, and when the main Transformer variable height/variable middle switch stops running, the Current Transformer is also in a power failure range, so that the Current amount protection is lost in the process of running the main Transformer variable height/variable middle switch. In order to ensure the current amount of the main transformer during the operation of the main transformer, in the process of the bypass switch circuit-replacing operation, the current required by the main transformer protection during the transformation needs to be obtained from the current transformer of the main transformer during the transformation, and is switched from the current transformer of the main transformer bushing during the transformation. In actual production work, the switching process is realized through the switching of current connecting sheets on the high/medium voltage side of a main transformer protection screen.
The main transformer becomes high/becomes middle current connection piece switching operation is the basic skill that the operating personnel need to master, and is also the operation that skill level requires the highest in the operation of taking the place of the way, and the risk is also the highest. When the operator's operating skill level is not relevant, the following risks will arise: in the operation process, a secondary circuit of the current transformer may be opened, so that an open circuit point generates high voltage, and the safety of equipment and operators is damaged; in the switching process, an operator carelessly touches the electrified part of the current connecting sheet by mistake to cause electric shock of the operator; or the current transformer loop is not switched correctly in the operation process, and after the operation is finished, differential current exists in the protection, so that the protection is tripped by mistake.
In order to avoid the above situation, the operator generally learns the switching skill of the current transformer loop by means of theoretical explanation, following learning in the actual operation process or training in a professional training base. However, theoretical explanation only focuses on theoretical learning and is not trained by actual practice, so that the skill level of operators is limited; the learning is followed in the actual operation process, and the situation that the switching is required in the actual operation of the transformer substation is limited, so that the learning frequency of an operator has certain limitation, and the operator cannot be helped to master the operation skill; and going to a professional training base for practice would take a significant amount of time and expense. Therefore, the traditional main transformer circuit-replacing current transformer circuit switching operation skill learning mode has the defect of poor learning reliability.
Disclosure of Invention
Therefore, it is necessary to provide a main transformer circuit-replacing current transformer circuit switching training device for solving the problems of poor learning reliability and a conventional main transformer circuit-replacing current transformer circuit switching operation skill learning mode.
A main transformer circuit switching training device of a current transformer comprises: a first conductive post; a second conductive post; the first end of the second conductive column is connected with the first end of the third conductive column; the first connecting piece is used for communicating the second end of the first conductive column with the second end of the second conductive column and/or communicating the second end of the first conductive column with the second end of the third conductive column under the stirring of a user; and the alarm trigger is used for outputting an alarm trigger action signal to give an alarm prompt when the first end of the first conductive column and the first end of the second conductive column are connected with a power supply, and if the second end of the first conductive column is not communicated with the second end of the second conductive column through the first connecting piece and the second end of the first conductive column is not communicated with the second end of the third conductive column through the first connecting piece.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: a fourth conductive post; a fifth conductive post, a first end of the fourth conductive post and a first end of the fifth conductive post being connected; the second connecting piece is used for communicating the second end of the third conductive column with the second end of the fourth conductive column and/or communicating the second end of the third conductive column with the second end of the fifth conductive column under the stirring of a user; and the first alarm trigger is used for switching in a power supply between the first end of the third conductive column and the first end of the fourth conductive column, and outputting an alarm trigger action signal to give an alarm prompt if the second end of the third conductive column is not communicated with the second end of the fourth conductive column through the second connecting piece and the second end of the fifth conductive column is not communicated with the second end of the third conductive column through the second connecting piece.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: the first end of the sixth conductive column is connected with the first end of the seventh conductive column; the third connecting piece is used for communicating the second end of the fifth conductive column with the second end of the sixth conductive column and/or communicating the second end of the fifth conductive column with the second end of the seventh conductive column under the stirring of a user; and the second alarm trigger is used for accessing a power supply between the first end of the fifth conductive column and the first end of the sixth conductive column, and outputting an alarm trigger action signal to give an alarm prompt if the second end of the fifth conductive column is not communicated with the second end of the sixth conductive column through the third connecting piece and the second end of the fifth conductive column is not communicated with the second end of the seventh conductive column through the third connecting piece.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: the first alarm trigger is connected with the eighth conductive column, the ninth conductive column, the tenth conductive column, the eleventh conductive column, the twelfth conductive column, the thirteenth conductive column, the fourteenth conductive column, the fourth connecting piece, the fifth connecting piece, the sixth connecting piece, the third alarm trigger, the fourth alarm trigger and the fifth alarm trigger;
wherein the first end of the ninth conductive pillar is connected to the first end of the tenth conductive pillar, the first end of the eleventh conductive pillar is connected to the first end of the twelfth conductive pillar, and the first end of the thirteenth conductive pillar is connected to the first end of the fourteenth conductive pillar;
the fourth connecting piece is used for communicating the second end of the eighth conductive post with the second end of the ninth conductive post and/or communicating the second end of the eighth conductive post with the second end of the tenth conductive post when a user stirs the conductive posts; the fifth connecting member is used for communicating the second end of the tenth conductive pillar with the second end of the eleventh conductive pillar and/or communicating the second end of the tenth conductive pillar with the second end of the twelfth conductive pillar when being stirred by a user; the sixth connecting member is used for communicating the second end of the twelfth conductive pillar with the second end of the thirteenth conductive pillar and/or communicating the second end of the twelfth conductive pillar with the second end of the fourteenth conductive pillar when a user stirs the sixth connecting member;
the third alarm trigger is configured to access a power supply between the first end of the eighth conductive pillar and the first end of the ninth conductive pillar, and output an alarm trigger action signal to perform an alarm prompt if the second end of the eighth conductive pillar is not communicated with the second end of the ninth conductive pillar through the fourth connecting member and the second end of the eighth conductive pillar is not communicated with the second end of the tenth conductive pillar through the fourth connecting member; the fourth alarm trigger is configured to access a power supply between the first end of the tenth conductive pillar and the first end of the eleventh conductive pillar, and output an alarm trigger action signal to prompt an alarm if the second end of the tenth conductive pillar is not communicated with the second end of the eleventh conductive pillar through the fifth connecting member and the second end of the tenth conductive pillar is not communicated with the second end of the eleventh conductive pillar through the fifth connecting member; the fifth alarm trigger is configured to access a power supply between the first end of the twelfth conductive pillar and the first end of the thirteenth conductive pillar, and output an alarm trigger action signal to prompt an alarm if the second end of the twelfth conductive pillar is not communicated with the second end of the thirteenth conductive pillar through the sixth connecting member and the second end of the twelfth conductive pillar is not communicated with the second end of the fourteenth conductive pillar through the sixth connecting member.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: the second conductive column, the third conductive column, the fourth conductive column, the fifth conductive column, the sixth conductive column, the seventh conductive column, the eighth conductive column, the ninth conductive column, the tenth conductive column, the eleventh conductive column, the twelfth conductive column, the thirteenth conductive column, the fourteenth conductive column, the second connecting piece, the third connecting piece, the fourth connecting piece, the fifth connecting piece and the sixth connecting piece;
the first end of the fourth conductive column is connected with the first end of the fifth conductive column, the first end of the sixth conductive column is connected with the first end of the seventh conductive column, the first end of the seventh conductive column is connected with the first end of the eighth conductive column, the first end of the ninth conductive column is connected with the first end of the tenth conductive column, the first end of the eleventh conductive column is connected with the first end of the twelfth conductive column, and the first end of the thirteenth conductive column is connected with the first end of the fourteenth conductive column;
the second connecting piece is used for communicating the second end of the third conductive column with the second end of the fourth conductive column and/or communicating the second end of the third conductive column with the second end of the fifth conductive column when a user stirs the conductive connecting piece; the third connecting piece is used for communicating the second end of the fifth conductive column with the second end of the sixth conductive column and/or communicating the second end of the fifth conductive column with the second end of the seventh conductive column when a user stirs the third connecting piece; the fourth connecting piece is used for communicating the second end of the eighth conductive post with the second end of the ninth conductive post and/or communicating the second end of the eighth conductive post with the second end of the tenth conductive post when a user stirs the conductive posts; the fifth connecting member is used for communicating the second end of the tenth conductive pillar with the second end of the eleventh conductive pillar and/or communicating the second end of the tenth conductive pillar with the second end of the twelfth conductive pillar when being stirred by a user; the sixth connecting member is used for communicating the second end of the twelfth conductive pillar with the second end of the thirteenth conductive pillar and/or communicating the second end of the twelfth conductive pillar with the second end of the fourteenth conductive pillar when a user stirs the sixth connecting member;
the second end of the first conductive column is connected with the positive end of a power supply, and the second end of the fourteenth conductive column is connected with the negative end of the power supply; the alarm trigger is arranged between the second end of the first conductive column and the second end of the fourteenth conductive column.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: and the alarm circuit is connected with the alarm trigger and used for outputting an alarm prompt signal according to the alarm trigger action signal.
In one embodiment, the main circuit-switching training device further includes a housing, the first ends of the first conductive column, the second conductive column, and the third conductive column are located inside the housing, the second ends of the first conductive column, the second conductive column, and the third conductive column extend to the same outer surface of the housing, and the first connecting member is disposed between the second end of the first conductive column and the second end of the second conductive column.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: a fixing means disposed on an outer surface of the housing.
In one embodiment, the first connecting piece includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are layered, the first connecting piece is used for communicating the second end of the first conductive pillar with the second end of the second conductive pillar under the user's poking, and the second connecting piece is used for communicating the second end of the first conductive pillar with the second end of the third conductive pillar under the user's poking.
In one embodiment, the alarm trigger is a voltage relay.
The main transformer circuit switching training device simulates the main transformer circuit switching operation by switching of the first connecting piece, the device is provided with the first conductive column, the second conductive column and the third conductive column, the first end of the second conductive column is in short circuit with the first end of the third conductive column, and a power supply is connected between the first end of the first conductive column and the first end of the second conductive column. When a user toggles the first connecting element to enable the first end of the first conductive pillar to be communicated with the first end of the second conductive pillar, a closed loop is formed between the first end of the first conductive pillar, the second end of the first conductive pillar, the first connecting element, the second end of the second conductive pillar and the first end of the second conductive pillar. When the user toggles the first connecting element to connect the first end of the first conductive pillar and the first end of the third conductive pillar, a closed loop is formed between the first end of the first conductive pillar, the second end of the first conductive pillar, the first connecting element, the second end of the third conductive pillar, the first end of the third conductive pillar, and the first end of the second conductive pillar. When any closed loop exists, the alarm trigger is in a power-off state, and no alarm trigger action signal is generated at the moment; when the two closed loops are simultaneously disconnected, the alarm trigger is in a power-on state, and the alarm trigger acts to generate an alarm trigger action signal, so that the alarm operation is finally realized. Through the scheme, the switching operation of the first connecting piece can be utilized to simulate the switching of the main transformer circuit-replacing current transformer loop, the learning of the switching operation technology of the main transformer circuit-replacing current transformer loop can be carried out at any time and any place, and when the two closed loops are disconnected due to operation errors, the alarm prompt operation can be realized, so that the high learning reliability is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a main transformer circuit switching training apparatus according to an embodiment;
FIG. 2 is a schematic diagram of a main transformer circuit switching training apparatus according to another embodiment;
FIG. 3 is a schematic diagram of a main transformer circuit switching training apparatus according to yet another embodiment;
FIG. 4 is a front view of a main circuit-replacing current transformer loop switching training apparatus in an embodiment;
FIG. 5 is an electrical connection diagram of a main circuit-replacing current transformer loop switching training apparatus in an embodiment;
FIG. 6 is a diagram illustrating the connection of conductive pillars of the training apparatus for loop switching of a main current transformer in an embodiment;
FIG. 7 is an electrical connection diagram of a main circuit-replacing current transformer loop switching training apparatus in another embodiment;
FIG. 8 is an electrical schematic of an alarm circuit according to one embodiment;
FIG. 9 is a rear view of a main circuit-replacing current transformer loop switching training apparatus in an embodiment;
FIG. 10 is a side view of a main circuit-replacing current transformer loop switching training apparatus in an embodiment;
fig. 11 is a top view of the main circuit-replacing current transformer loop switching training apparatus in an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, a main transformer circuit switching training device includes: a first conductive pillar 11; a second conductive pillar 12; a third conductive pillar 13, wherein the first end of the second conductive pillar 12 is connected to the first end of the third conductive pillar 13; the first connecting piece 14 is used for communicating the second end of the first conductive pillar 11 with the second end of the second conductive pillar 12 and/or communicating the second end of the first conductive pillar 11 with the second end of the third conductive pillar 13 when a user stirs the conductive structure; and the alarm trigger 15 is configured to access a power supply between the first end of the first conductive column 11 and the first end of the second conductive column 12, and output an alarm trigger action signal to prompt an alarm if the second end of the first conductive column 11 is not communicated with the second end of the second conductive column 12 through the first connecting member 14 and the second end of the first conductive column 11 is not communicated with the second end of the third conductive column 13 through the first connecting member 14.
Specifically, main transformer is substituted way and is referred to when the circuit breaker of main transformer overhauls, for avoiding the main transformer to have a power failure, reduces the power failure scope, under the mode of connection that has the bypass, connects main transformer return circuit to the bypass bus through bypass isolator, and rethread bypass circuit breaker connects to the main bus, makes this return circuit normal operating. The conductive column is a post with a conductive function, and the specific form is not unique. For example, in a more detailed embodiment, the conductive pillar specifically includes a conductive core and an insulating layer, the insulating layer covers the outer surface of the conductive core, and exposes one end of the conductive core to serve as the first end of the conductive pillar, so as to achieve short-circuiting with other conductive pillars and accessing of a power supply. The other end of the conductive core has two exposed portions, and the two exposed portions are respectively used for connecting with the adjacent conductive posts through the first connecting member 14. Therefore, by switching the first connecting member 14, the second end of the first conductive pillar 11 and the second end of the second conductive pillar 12 can be connected, and the second end of the first conductive pillar 11 and the second end of the third conductive pillar 13 can be connected at the same time.
In the solution of this embodiment, a training unit is formed by the first conductive pillar 11, the second conductive pillar 12, the third conductive pillar 13, the first connecting member 14, and the alarm trigger 15. When a power supply is connected between the first end of the first conductive pillar 11 and the first end of the second conductive pillar 12, two loops may be formed by using three conductive pillars and one connecting member, which are respectively the first end of the first conductive pillar 11-the second end of the first conductive pillar 11-the first connecting member 14-the second end of the second conductive pillar 12-the first end of the second conductive pillar 12, and the first end of the first conductive pillar 11-the second end of the first conductive pillar 11-the first connecting member 14-the second end of the third conductive pillar 13-the first end of the second conductive pillar 12. The setting position of the alarm trigger 15 is not unique, as long as the power supply can be connected between the first end of the first conductive column 11 and the first end of the second conductive column 12, and any one loop is in a power-off state when formed, and both loops are in a power-on state when formed. For example, in one embodiment, the alarm trigger 15 may be disposed between the first end of the first conductive post 11 and the first end of the second conductive post 12.
Therefore, according to the scheme of the embodiment, a user simulates the loop switching of the main transformer route-replacing current transformer through the switching operation of the first connecting piece 14, and the purpose of skill learning can be achieved. The scheme of this embodiment still possesses alarming function, when user's operation is improper, can trigger alarm operation to guarantee that the user accurately carries out the study of main transformer route-replacing current transformer return circuit switching skill, and the device is with low costs, can let the user practice anytime and anywhere, has stronger study reliability.
It should be noted that, in an actual use scenario, in order to facilitate the user to learn related skills, more than two training units may be provided in the same main-transformer circuit switching training device. The training units can be independent or related to each other, and different settings can be performed according to user requirements. For ease of understanding, the following explanation is given by taking the example that each training unit has an association.
Referring to fig. 2, in an embodiment, the main transformer circuit switching training apparatus further includes: a fourth conductive pillar 21; a fifth conductive pillar 22, wherein a first end of the fourth conductive pillar 21 is connected to a first end of the fifth conductive pillar 22; the second connecting piece 23 is used for communicating the second end of the third conductive pillar 13 with the second end of the fourth conductive pillar 21 and/or communicating the second end of the third conductive pillar 13 with the second end of the fifth conductive pillar 22 when being pushed by a user; the first alarm trigger (not shown in the figure) is configured to, when a power supply is connected between the first end of the third conductive pillar 13 and the first end of the fourth conductive pillar 21, output an alarm trigger action signal to prompt an alarm if the second end of the third conductive pillar 13 is not communicated with the second end of the fourth conductive pillar 21 through the second connecting member 23 and the second end of the third conductive pillar 13 is not communicated with the second end of the fifth conductive pillar 22 through the second connecting member 23.
Specifically, in the scheme of this embodiment, the number of the training units is two, and each training unit is provided with an independent alarm trigger 15, and for each training unit, as long as under the condition that the training unit is connected to the power supply, both loops are not conducted under the action of the corresponding connecting piece, and the alarm trigger 15 corresponding to the connecting piece will be powered on to output an alarm trigger action signal, thereby realizing an alarm operation.
In the scheme of this embodiment, to between the first end of first conductive pillar 11 and the first end of second conductive pillar 12, and between the first end of third conductive pillar 13 and the first end of fourth conductive pillar 21, can insert independent power respectively, in the in-process of practising, two training units realize independent switching training through opening corresponding power respectively. That is, when a training unit formed by the first conductive pillar 11, the second conductive pillar 12, the third conductive pillar 13, the first connection element 14, and the alarm trigger 15 needs to be used, the power supply between the first end of the first conductive pillar 11 and the first end of the second conductive pillar 12 is turned on, and the power supply side between the first end of the third conductive pillar 13 and the first end of the fourth conductive pillar 21 is turned off.
Further, in an embodiment, referring to fig. 3, the training apparatus for main transformer circuit switching further includes: the sixth conductive pillar 31 and the seventh conductive pillar 32, and a first end of the sixth conductive pillar 31 is connected to a first end of the seventh conductive pillar 32; the third connecting member 33 is used for communicating the second end of the fifth conductive pillar 22 with the second end of the sixth conductive pillar 31 and/or communicating the second end of the fifth conductive pillar 22 with the second end of the seventh conductive pillar 32 when being pushed by a user; the second alarm trigger (not shown in the figure) is configured to, when a power supply is connected between the first end of the fifth conductive pillar 22 and the first end of the sixth conductive pillar 31, output an alarm trigger action signal to prompt an alarm if the second end of the fifth conductive pillar 22 is not communicated with the second end of the sixth conductive pillar 31 through the third connecting member 33 and the second end of the fifth conductive pillar 22 is not communicated with the second end of the seventh conductive pillar 32 through the third connecting member 33.
Specifically, in the scheme of this embodiment, the number of the training units is further expanded to three, and the third training unit is shared by the second training unit and the fifth conductive column 22, and only in the above embodiment, the training units formed by the fourth conductive column 21, the fifth conductive column 22, the second connecting member 23, and the first alarm trigger are similar to each other, so that the independent training operations of the three training units can be respectively realized.
Further, referring to fig. 4 and fig. 5 in combination, in an embodiment, the main-transformer-circuit switching training apparatus further includes: an eighth conductive pillar 41, a ninth conductive pillar 42, a tenth conductive pillar 43, an eleventh conductive pillar 44, a twelfth conductive pillar 45, a thirteenth conductive pillar 46, a fourteenth conductive pillar 47, a fourth connecting member 40, a fifth connecting member 48, a sixth connecting member 49, a third alarm trigger (not shown), a fourth alarm trigger (not shown), and a fifth alarm trigger (not shown);
a first end of the ninth conductive pillar 42 is connected to a first end of the tenth conductive pillar 43, a first end of the eleventh conductive pillar 44 is connected to a first end of the twelfth conductive pillar 45, and a first end of the thirteenth conductive pillar 46 is connected to a first end of the fourteenth conductive pillar 47; the fourth connecting element 40 is configured to connect the second end of the eighth conductive pillar 41 to the second end of the ninth conductive pillar 42 and/or connect the second end of the eighth conductive pillar 41 to the second end of the tenth conductive pillar 43 when being toggled by a user; the fifth connecting element 48 is used for connecting the second end of the tenth conductive pillar 43 with the second end of the eleventh conductive pillar 44 and/or connecting the second end of the tenth conductive pillar 43 with the second end of the twelfth conductive pillar 45 when being pushed by a user; the sixth connecting member 49 is used for communicating the second end of the twelfth conductive pillar 45 with the second end of the thirteenth conductive pillar 46 and/or communicating the second end of the twelfth conductive pillar 45 with the second end of the fourteenth conductive pillar 47 when being pushed by a user;
the third alarm trigger is configured to access a power supply between the first end of the eighth conductive pillar 41 and the first end of the ninth conductive pillar 42, and output an alarm trigger action signal to prompt an alarm if the second end of the eighth conductive pillar 41 is not communicated with the second end of the ninth conductive pillar 42 through the fourth connecting member 40 and the second end of the eighth conductive pillar 41 is not communicated with the second end of the tenth conductive pillar 43 through the fourth connecting member 40; the fourth alarm trigger is configured to, when a power supply is connected between the first end of the tenth conductive pillar 43 and the first end of the eleventh conductive pillar 44, output an alarm trigger action signal to prompt an alarm if the second end of the tenth conductive pillar 43 is not communicated with the second end of the eleventh conductive pillar 44 through the fifth connection component 48, and the second end of the tenth conductive pillar 43 is not communicated with the second end of the eleventh conductive pillar 44 through the fifth connection component 48; the fifth alarm trigger is configured to access a power supply between the first end of the twelfth conductive pillar 45 and the first end of the thirteenth conductive pillar 46, and output an alarm triggering action signal to prompt an alarm if the second end of the twelfth conductive pillar 45 is not communicated with the second end of the thirteenth conductive pillar 46 through the sixth connecting member 49, and the second end of the twelfth conductive pillar 45 is not communicated with the second end of the fourteenth conductive pillar 47 through the sixth connecting member 49.
Specifically, in this embodiment, the number of training units is further increased to 6, and three additional training units in this embodiment are mirrored to the three training units in the above embodiment, and an independent switching training operation can be implemented in a manner similar to the above three training units, which is not described herein again. It will be appreciated that in other embodiments, the number of training units may also be extended differently in combination with the actual scenario, and may be seven, eight or even more.
Referring to fig. 4-7, in an embodiment, the main-circuit current transformer loop switching training apparatus further includes: the second conductive column 12, the third conductive column 13, the fourth conductive column 21, the fifth conductive column 22, the sixth conductive column 31, the seventh conductive column 32, the eighth conductive column 41, the ninth conductive column 42, the tenth conductive column 43, the eleventh conductive column 44, the twelfth conductive column 45, the thirteenth conductive column 46, the fourteenth conductive column 47, the second connection member 23, the third connection member 33, the fourth connection member 40, the fifth connection member 48, and the sixth connection member 49;
the first end of the fourth conductive column 21 is connected to the first end of the fifth conductive column 22, the first end of the sixth conductive column 31 is connected to the first end of the seventh conductive column 32, the first end of the seventh conductive column 32 is connected to the first end of the eighth conductive column 41, the first end of the ninth conductive column 42 is connected to the first end of the tenth conductive column 43, the first end of the eleventh conductive column 44 is connected to the first end of the twelfth conductive column 45, and the first end of the thirteenth conductive column 46 is connected to the first end of the fourteenth conductive column 47;
the second connecting member 23 is used for communicating the second end of the third conductive pillar 13 with the second end of the fourth conductive pillar 21 and/or communicating the second end of the third conductive pillar 13 with the second end of the fifth conductive pillar 22 when being pushed by a user; the third connecting member 33 is used for communicating the second end of the fifth conductive pillar 22 with the second end of the sixth conductive pillar 31 and/or communicating the second end of the fifth conductive pillar 22 with the second end of the seventh conductive pillar 32 when being pushed by a user; the fourth connecting element 40 is configured to connect the second end of the eighth conductive pillar 41 to the second end of the ninth conductive pillar 42 and/or connect the second end of the eighth conductive pillar 41 to the second end of the tenth conductive pillar 43 when being toggled by a user; the fifth connecting element 48 is used for connecting the second end of the tenth conductive pillar 43 with the second end of the eleventh conductive pillar 44 and/or connecting the second end of the tenth conductive pillar 43 with the second end of the twelfth conductive pillar 45 when being pushed by a user; the sixth connecting member 49 is used for communicating the second end of the twelfth conductive pillar 45 with the second end of the thirteenth conductive pillar 46 and/or communicating the second end of the twelfth conductive pillar 45 with the second end of the fourteenth conductive pillar 47 when being pushed by a user;
the second end of the first conductive column 11 is connected to the positive end of the power supply, and the second end of the fourteenth conductive column 47 is connected to the negative end of the power supply; the alarm trigger 15 is disposed between the second end of the first conductive pillar 11 and the second end of the fourteenth conductive pillar 47.
Specifically, the alarm trigger 15 is configured to output an alarm trigger action signal to trigger an alarm prompt when the second end of the first conductive pillar 11 is not communicated with the second end of the second conductive pillar 12 through the first connecting member 14, and the second end of the first conductive pillar 11 is not communicated with the second end of the third conductive pillar 13 through the first connecting member 14; or when the second end of the third conductive pillar 13 is not communicated with the second end of the fourth conductive pillar 21 through the second connecting member 23, and the second end of the third conductive pillar 13 is not communicated with the second end of the fifth conductive pillar 22 through the second connecting member 23, outputting an alarm triggering action signal to trigger an alarm prompt; or when the second end of the fifth conductive pillar 22 is not communicated with the second end of the sixth conductive pillar 31 through the third connecting member 33, and the second end of the fifth conductive pillar 22 is not communicated with the second end of the seventh conductive pillar 32 through the third connecting member 33, outputting an alarm triggering action signal to trigger an alarm prompt; or when the second end of the eighth conductive pillar 41 is not communicated with the second end of the ninth conductive pillar 42 through the fourth connecting member 40, and the second end of the eighth conductive pillar 41 is not communicated with the second end of the tenth conductive pillar 43 through the fourth connecting member 40, outputting an alarm triggering action signal to trigger an alarm prompt; or when the second end of the tenth conductive pillar 43 is not communicated with the second end of the eleventh conductive pillar 44 through the fifth connection member 48, and the second end of the tenth conductive pillar 43 is not communicated with the second end of the eleventh conductive pillar 44 through the fifth connection member 48, an alarm triggering action signal is output to trigger an alarm prompt; or when the second end of the twelfth conductive pillar 45 is not communicated with the second end of the thirteenth conductive pillar 46 through the sixth connecting member 49, and the second end of the twelfth conductive pillar 45 is not communicated with the second end of the fourteenth conductive pillar 47 through the sixth connecting member 49, an alarm triggering action signal is output to trigger an alarm prompt.
In the scheme of this embodiment, the number of the conductive columns is fourteen, six training units are formed by the conductive columns, so as to save the number of the alarm triggers, a user can perform switching training through the six training units at the same time, and the training units are connected in series. Therefore, the alarm trigger can be guaranteed to be not powered only on the basis that each training unit can transmit current to the next training unit, and when two current lines in any training unit are disconnected, the loops formed by the fourteen conductive posts and the six connecting pieces are disconnected, so that alarm operation occurs.
In the following description of the operation process of the main circuit-replacing current transformer loop switching training apparatus in this embodiment, the first conductive pillar 11 is connected to the positive terminal of the power supply, and the fourteenth conductive pillar 47 is connected to the negative terminal of the power supply, so that when the first connecting member 14 is connected between the second end of the first conductive pillar 11 and the second end of the second conductive pillar 12 to connect the two, and/or connected between the second end of the first conductive pillar 11 and the second end of the third conductive pillar 13 to connect the two, the power input by the first conductive pillar 11 can flow to the second end of the third conductive pillar 13. When the second connecting member 23 is connected between the second end of the third conductive pillar 13 and the second end of the fourth conductive pillar 21, and/or connected between the second end of the third conductive pillar 13 and the second end of the fifth conductive pillar 22, the electric energy at the second end of the third conductive pillar 13 can be further transmitted to the second end of the fifth conductive pillar 22. In the same manner as described above, the electric signal can be finally transmitted to the first end of the fourteenth conductive pillar 47, and then flows back to the power supply through the negative end of the power supply, so as to form a complete closed loop. In the process, as long as the connecting circuit of the two conductive posts in any training unit is disconnected, the whole loop is disconnected, and the electric energy directly flows through the alarm trigger 15, so that the triggering of the alarm trigger action signal is realized.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: and the alarm circuit is connected with the alarm trigger 15 and used for outputting an alarm prompt signal according to the alarm trigger action signal.
Specifically, when the alarm trigger 15 is in a power-off state, the alarm trigger 15 does not output an alarm trigger action signal, which indicates that no error occurs in the training process. When the user has misoperation in the training process, the alarm trigger 15 is powered on, so that an alarm trigger action signal is sent out. The alarm trigger 15 is connected to the alarm circuit, and the alarm circuit starts to work under the action of the alarm trigger action signal, so that alarm prompt is finally realized.
It will be appreciated that the specific type of alarm trigger 15 is not exclusive, as long as it is capable of outputting an alarm triggering action signal in the different states described above. For example, in one embodiment, the alarm trigger 15 may be provided as a switch tube or relay, or the like.
In a more detailed embodiment, the alarm trigger 15 is illustrated as a voltage relay, and in particular, with reference to fig. 7, the alarm circuit may be configured as shown in fig. 8. After the coil QD of the voltage relay is electrified, the action contact QDJ of the voltage relay is connected with the coil ZJ of the intermediate relay in series, and the action contact ZJJ of the intermediate relay is connected with the action contact QDJ of the voltage relay in parallel to form a self-holding loop. And the tail end of the loop is connected with an action node SJJ of a delay relay in series, the relay is delayed and disconnected, and the delay time is set to be 30 s. When the voltage relay acts, a coil SJ of the time delay relay is electrified, an acting contact SJJ of the time delay relay is closed instantaneously, when the voltage relay acts and returns, the time delay of the time delay relay returns by 30S, a self-holding loop of the intermediate relay is cut off, and the intermediate relay returns. That is, the intermediate relay relays at least 30S upon occurrence of the malfunction. The output of the alarm prompt signal can adopt the forms of sound and/or light, and the like, and particularly can open different alarm forms through the switches MCB2 and MCB3 according to the requirements of users.
Referring to fig. 4 and 9-11, in an embodiment, the main circuit-switching training device further includes a housing 80, first ends of the first conductive pillar 11, the second conductive pillar 12, and the third conductive pillar 13 are all located inside the housing 80, second ends of the first conductive pillar 11, the second conductive pillar 12, and the third conductive pillar 13 extend to a same outer surface of the housing 80, and the first connecting member 14 is disposed between the second end of the first conductive pillar 11 and the second end of the second conductive pillar 12.
Specifically, in the solution of this embodiment, a housing 80 is provided, and the first end of each conductive column is extended and disposed inside the housing 80, so that the electrical connection, the alarm circuit, and the like are disposed inside the housing 80. The first connecting member 14 is disposed on the surface of the housing 80, and the second ends of the conductive posts are also disposed on the same surface, so that a user can directly perform a switching training on the surface of the housing 80.
In one embodiment, the main circuit-replacing current transformer loop switching training device further comprises: and a fixing means provided on an outer surface of the housing 80.
Specifically, in order to facilitate the switching exercise, in this embodiment, a fixing device is further disposed on the outer surface of the housing 80, and when the user uses the exercise device, the exercise device is directly fixed to the table or the like through the fixing device. It is to be understood that the specific type of the fixing device is not exclusive, and in one embodiment, referring to fig. 9, the fixing device includes a rotary threaded fixing device 91 disposed on the opposite surface of the operation interface (the outer surface on which the first contact piece is disposed), the device includes an upper clamp plate, a lower clamp plate and a thread, the upper clamp plate and the lower clamp plate are movably disposed on the housing 80 through the thread, and the distance between the two clamp plates can be reduced through the rotation of the thread, so that the whole main transformer circuit-switching training device can be fixed by the two clamp plates.
In another embodiment, when the operation interface of the main circuit-replacing current transformer circuit switching training device is placed upwards, the fixing device further includes a fixing clip 92 disposed on the side surface of the housing 80, and the specific structure of the fixing clip may be consistent with that of the rotary threaded fixing device, or may be other types of fixing devices, such as a spring fixing clip, and the like, and the specific structure may be selected differently according to actual situations. Through the scheme of this embodiment, be provided with the fixed device at two surfaces of casing 80, can guarantee that main transformer passage-replacing current transformer return circuit switches trainer and in the use, can combine the difference of actual use scene to carry out different fixed to guarantee that the user switches the training anytime and anywhere.
In one embodiment, a battery groove is further arranged on the back of the main transformer circuit switching training device and used for storing a battery and supplying power to the whole device.
In one embodiment, the first connecting piece 14 includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are layered, the first connecting piece is used for communicating the second end of the first conductive pillar 11 with the second end of the second conductive pillar 12 under the user's poking, and the second connecting piece is used for communicating the second end of the first conductive pillar 11 with the second end of the third conductive pillar 13 under the user's poking.
Specifically, in the scheme of this embodiment, the connecting device includes two layers of connecting sheets, so that one connecting device can realize the connection between two sets of conductive posts, and the main circuit-replacing current transformer loop switching in the simulation actual state is facilitated.
The main transformer circuit switching training device simulates the main transformer circuit switching operation by switching the first connecting piece 14, and is provided with the first conductive column 11, the second conductive column 12 and the third conductive column 13, the first end of the second conductive column 12 is in short circuit with the first end of the third conductive column 13, and a power supply is connected between the first end of the first conductive column 11 and the first end of the second conductive column 12. When a user pulls the first connection element 14 to communicate the first end of the first conductive pillar 11 with the first end of the second conductive pillar 12, a closed loop is formed between the first end of the first conductive pillar 11, the second end of the first conductive pillar 11, the first connection element 14, the second end of the second conductive pillar 12, and the first end of the second conductive pillar 12. When the user pulls the first connection element 14 to connect the first end of the first conductive pillar 11 and the first end of the third conductive pillar 13, a closed loop is formed between the first end of the first conductive pillar 11, the second end of the first conductive pillar 11, the first connection element 14, the second end of the third conductive pillar 13, the first end of the third conductive pillar 13, and the first end of the second conductive pillar 12. When any closed loop exists, the alarm trigger 15 is in a power-off state, and no alarm trigger action signal is generated at the moment; when the two closed loops are simultaneously disconnected, the alarm trigger 15 is in an electrified state, and the alarm trigger 15 acts to generate an alarm trigger action signal, so that the alarm operation is finally realized. Through the scheme, the switching operation of the first connecting piece 14 can be utilized to simulate the switching of the main transformer circuit-replacing current transformer circuit, the learning of the switching operation technology of the main transformer circuit-replacing current transformer circuit can be carried out at any time and any place, and when an operation error causes the two closed circuits to be disconnected, the alarm prompt operation can be realized, so that the high learning reliability is realized.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a main current transformer return circuit switching trainer that changes, its characterized in that includes:
a first conductive post;
a second conductive post;
the first end of the second conductive column is connected with the first end of the third conductive column;
the first connecting piece is used for communicating the second end of the first conductive column with the second end of the second conductive column and/or communicating the second end of the first conductive column with the second end of the third conductive column under the stirring of a user;
and the alarm trigger is used for outputting an alarm trigger action signal to give an alarm prompt when the first end of the first conductive column and the first end of the second conductive column are connected with a power supply, and if the second end of the first conductive column is not communicated with the second end of the second conductive column through the first connecting piece and the second end of the first conductive column is not communicated with the second end of the third conductive column through the first connecting piece.
2. The main transformer circuit-replacing current transformer loop switching training device of claim 1, further comprising:
a fourth conductive post;
a fifth conductive post, a first end of the fourth conductive post and a first end of the fifth conductive post being connected;
the second connecting piece is used for communicating the second end of the third conductive column with the second end of the fourth conductive column and/or communicating the second end of the third conductive column with the second end of the fifth conductive column under the stirring of a user;
and the first alarm trigger is used for switching in a power supply between the first end of the third conductive column and the first end of the fourth conductive column, and outputting an alarm trigger action signal to give an alarm prompt if the second end of the third conductive column is not communicated with the second end of the fourth conductive column through the second connecting piece and the second end of the fifth conductive column is not communicated with the second end of the third conductive column through the second connecting piece.
3. The main transformer circuit-replacing current transformer loop switching training device of claim 2, further comprising:
a sixth conductive post disposed on the second conductive post,
a seventh conductive post, a first end of the sixth conductive post and a first end of the seventh conductive post being connected;
the third connecting piece is used for communicating the second end of the fifth conductive column with the second end of the sixth conductive column and/or communicating the second end of the fifth conductive column with the second end of the seventh conductive column under the stirring of a user;
and the second alarm trigger is used for accessing a power supply between the first end of the fifth conductive column and the first end of the sixth conductive column, and outputting an alarm trigger action signal to give an alarm prompt if the second end of the fifth conductive column is not communicated with the second end of the sixth conductive column through the third connecting piece and the second end of the fifth conductive column is not communicated with the second end of the seventh conductive column through the third connecting piece.
4. The main circuit-replacing current transformer loop switching training device as claimed in claim 3, further comprising an eighth conductive pillar, a ninth conductive pillar, a tenth conductive pillar, an eleventh conductive pillar, a twelfth conductive pillar, a thirteenth conductive pillar, a fourteenth conductive pillar, a fourth connecting member, a fifth connecting member, a sixth connecting member, a third alarm trigger, a fourth alarm trigger and a fifth alarm trigger;
wherein the first end of the ninth conductive pillar is connected to the first end of the tenth conductive pillar, the first end of the eleventh conductive pillar is connected to the first end of the twelfth conductive pillar, and the first end of the thirteenth conductive pillar is connected to the first end of the fourteenth conductive pillar;
the fourth connecting piece is used for communicating the second end of the eighth conductive post with the second end of the ninth conductive post and/or communicating the second end of the eighth conductive post with the second end of the tenth conductive post when a user stirs the conductive posts; the fifth connecting member is used for communicating the second end of the tenth conductive pillar with the second end of the eleventh conductive pillar and/or communicating the second end of the tenth conductive pillar with the second end of the twelfth conductive pillar when being stirred by a user; the sixth connecting member is used for communicating the second end of the twelfth conductive pillar with the second end of the thirteenth conductive pillar and/or communicating the second end of the twelfth conductive pillar with the second end of the fourteenth conductive pillar when a user stirs the sixth connecting member;
the third alarm trigger is configured to access a power supply between the first end of the eighth conductive pillar and the first end of the ninth conductive pillar, and output an alarm trigger action signal to perform an alarm prompt if the second end of the eighth conductive pillar is not communicated with the second end of the ninth conductive pillar through the fourth connecting member and the second end of the eighth conductive pillar is not communicated with the second end of the tenth conductive pillar through the fourth connecting member; the fourth alarm trigger is configured to access a power supply between the first end of the tenth conductive pillar and the first end of the eleventh conductive pillar, and output an alarm trigger action signal to prompt an alarm if the second end of the tenth conductive pillar is not communicated with the second end of the eleventh conductive pillar through the fifth connecting member and the second end of the tenth conductive pillar is not communicated with the second end of the eleventh conductive pillar through the fifth connecting member; the fifth alarm trigger is configured to access a power supply between the first end of the twelfth conductive pillar and the first end of the thirteenth conductive pillar, and output an alarm trigger action signal to prompt an alarm if the second end of the twelfth conductive pillar is not communicated with the second end of the thirteenth conductive pillar through the sixth connecting member and the second end of the twelfth conductive pillar is not communicated with the second end of the fourteenth conductive pillar through the sixth connecting member.
5. The main circuit-switching current transformer circuit switching training device of claim 1, further comprising a second conductive post, a third conductive post, a fourth conductive post, a fifth conductive post, a sixth conductive post, a seventh conductive post, an eighth conductive post, a ninth conductive post, a tenth conductive post, an eleventh conductive post, a twelfth conductive post, a thirteenth conductive post, a fourteenth conductive post, a second connecting member, a third connecting member, a fourth connecting member, a fifth connecting member, and a sixth connecting member;
the first end of the fourth conductive column is connected with the first end of the fifth conductive column, the first end of the sixth conductive column is connected with the first end of the seventh conductive column, the first end of the seventh conductive column is connected with the first end of the eighth conductive column, the first end of the ninth conductive column is connected with the first end of the tenth conductive column, the first end of the eleventh conductive column is connected with the first end of the twelfth conductive column, and the first end of the thirteenth conductive column is connected with the first end of the fourteenth conductive column;
the second connecting piece is used for communicating the second end of the third conductive column with the second end of the fourth conductive column and/or communicating the second end of the third conductive column with the second end of the fifth conductive column when a user stirs the conductive connecting piece; the third connecting piece is used for communicating the second end of the fifth conductive column with the second end of the sixth conductive column and/or communicating the second end of the fifth conductive column with the second end of the seventh conductive column when a user stirs the third connecting piece; the fourth connecting piece is used for communicating the second end of the eighth conductive post with the second end of the ninth conductive post and/or communicating the second end of the eighth conductive post with the second end of the tenth conductive post when a user stirs the conductive posts; the fifth connecting member is used for communicating the second end of the tenth conductive pillar with the second end of the eleventh conductive pillar and/or communicating the second end of the tenth conductive pillar with the second end of the twelfth conductive pillar when being stirred by a user; the sixth connecting member is used for communicating the second end of the twelfth conductive pillar with the second end of the thirteenth conductive pillar and/or communicating the second end of the twelfth conductive pillar with the second end of the fourteenth conductive pillar when a user stirs the sixth connecting member;
the second end of the first conductive column is connected with the positive end of a power supply, and the second end of the fourteenth conductive column is connected with the negative end of the power supply; the alarm trigger is arranged between the second end of the first conductive column and the second end of the fourteenth conductive column.
6. The main transformer route-substituting current transformer loop switching training device according to claim 1, further comprising an alarm circuit, wherein the alarm trigger is connected with the alarm circuit, and the alarm circuit is used for outputting an alarm prompt signal according to the alarm trigger action signal.
7. The main circuit-switching current transformer loop switching training device of any one of claims 1-6, further comprising a housing, wherein the first ends of the first, second, and third conductive posts are all located inside the housing, the second ends of the first, second, and third conductive posts extend to a same outer surface of the housing, and the first connecting member is disposed between the second end of the first conductive post and the second end of the second conductive post.
8. The main transformer circuit-switching training device of claim 7, further comprising a fixing device disposed on an outer surface of the housing.
9. The main transformer route-taking current transformer loop switching training device of claim 1, wherein the first connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are arranged in layers, the first connecting piece is used for communicating the second end of the first conductive column with the second end of the second conductive column under the user's stirring, and the second connecting piece is used for communicating the second end of the first conductive column with the second end of the third conductive column under the user's stirring.
10. The main transformer route-substituting current transformer loop switching training device of claim 1, wherein the alarm trigger is a voltage relay.
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| CN112072618A (en) * | 2020-08-03 | 2020-12-11 | 广东电网有限责任公司 | Main transformer CT secondary current linkage switching terminal with single bus provided with bypass |
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| CN201594345U (en) * | 2009-12-02 | 2010-09-29 | 河北省电力公司超高压输变电分公司 | Transformer substation current testing terminal switching simulation operating panel |
| CN202178610U (en) * | 2011-09-02 | 2012-03-28 | 广东电网公司深圳供电局 | Switching apparatus of bypass switch for operating TA secondary circuit in replace of main transformer |
| US20160072341A1 (en) * | 2013-04-24 | 2016-03-10 | Panasonic Intellectual Property Management Co., Lt | Power conversion system and connector |
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