CN216213219U - High-voltage circuit breaker - Google Patents

Abstract

The utility model belongs to the field of high-voltage switch equipment, in particular to a high-voltage circuit breaker, which comprises a mechanism box, a solid-sealed pole, a current transformer and an inrush current controller, wherein the solid-sealed pole, the current transformer and the inrush current controller are fixed on the mechanism box, a driving mechanism for driving the opening and closing of the solid-sealed pole is arranged in the mechanism box, the inrush current controller is in control connection with the driving mechanism, the high-voltage circuit breaker also comprises an adapter seat fixed relative to the mechanism box, part of contacts of the adapter seat are transformer contacts in conductive connection with the current transformer, and the other part of contacts are controller contacts in conductive connection with the inrush current controller, the transformer contacts and the controller contacts are in one-to-one correspondence, the high-voltage circuit breaker also comprises connecting conductors which are detachably connected with the corresponding transformer contacts and controller contacts to realize the conductive communication of the corresponding transformer contacts and controller contacts, and the scheme is adopted to ensure that the input and output operations of the high-voltage circuit breaker are simple and easy, can be finished without depending on professional after-sales personnel.

Description

High-voltage circuit breaker

Technical Field

The utility model belongs to the field of high-voltage switch equipment, and particularly relates to a high-voltage circuit breaker.

Background

The high-voltage circuit breaker is an important primary device in a power system and plays a role in switching and protecting in the power system. When the high-voltage circuit breaker is used specifically, the high-voltage circuit breaker is matched with secondary equipment for use.

Because the primary equipment and the secondary equipment are mostly separately tendered, the situation that the primary equipment is installed and the secondary equipment is not put into the field often occurs, and the primary equipment needs to be debugged under the condition of having a protection mechanism after the primary equipment is installed, for the situation, the most extensive, common and higher economic method in the actual operation process is to arrange an inrush current controller inside the high-voltage circuit breaker, the inrush current controller is in conductive communication with a current transformer of the high-voltage circuit breaker, and the built-in inrush current controller replaces the secondary equipment to enable the high-voltage circuit breaker to realize an inrush current protection function. After the secondary equipment enters a field or when the inrush current protection function is not needed, the built-in inrush current controller needs to be switched off, so that the secondary equipment can be externally connected or the line can be switched off from the inrush current protection function. For example, the circuit breaker with the external inrush current controller and the high protection level disclosed in the chinese utility model patent with the authorized bulletin number of CN208027995U and the authorized bulletin date of 2018, 10 and 30 realizes the switching on and off and the investment of the inrush current controller through the dismounting and installation of the inrush current controller.

The switching operation of the inrush current controller in the prior art is complex, especially for an outdoor high-voltage circuit breaker, the installation position of the inrush current controller is generally high, and the inconvenience of switching operation of the inrush current controller is further increased. In addition, after the wire on the inrush current controller is removed, the wire end needs to be coated and insulated, the operation is time-consuming, the operations generally need professional after-sales personnel of an equipment manufacturer, the process of contacting and waiting for the after-sales personnel also takes a long time, the switching-in and switching-out efficiency and the operation-in efficiency of the inrush current controller are low, and meanwhile, the cost of the manufacturer is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-voltage circuit breaker, which aims to solve the technical problems that in the prior art, when a surge controller of the high-voltage circuit breaker is put in and out and put in, the wire end of the surge controller needs to be insulated, so that the operation is complex, the time consumption is long, and the cost of manufacturers is high.

In order to achieve the purpose, the technical scheme of the high-voltage circuit breaker provided by the utility model is as follows:

the utility model provides a high-voltage circuit breaker, includes the mechanism case and fixes solid utmost point post, current transformer and the controller that shoves on the mechanism case that seals, is provided with the actuating mechanism who is used for the drive to seal the branch closing action of utmost point post admittedly in the mechanism incasement, and the controller that shoves is connected with the control of actuating mechanism, high-voltage circuit breaker still includes for the fixed adapter socket of mechanism case, and the partial contact of adapter socket is for the mutual-inductor contact of being connected with current transformer is electrically conductive, and some contacts are for the controller contact of being connected with the controller that shoves, and mutual-inductor contact and controller contact one-to-one, high-voltage circuit breaker still include with each corresponding mutual-inductor contact and controller contact releasable connection in order to realize the connecting conductor of corresponding mutual-inductor contact and the electrically conductive intercommunication of controller contact.

The beneficial effects are that: before the secondary equipment is transported to a use site, when inrush current protection is needed to be carried out on a circuit, the corresponding mutual inductor contacts and the controller contacts are in conductive communication through the connecting conductors to realize the input of an inrush current controller, when the current in the circuit is increased, the secondary side current of the current mutual inductor is increased, and when the secondary constant value of the inrush current controller is exceeded, the inrush current controller acts to enable the driving mechanism to act to enable the breaker to be opened, so that the inrush current protection function is realized, when the secondary equipment is transported to the use site, the connecting conductors are disassembled to realize the input and the output of the inrush current controller, as the inrush current controller and the current mutual inductor are connected to the contacts of the adapter, no exposed wire end exists after the disassembly operation is finished, the wire end insulating encapsulation operation in a space box is not needed, the disassembly of the connecting conductors can realize the input and the output of the inrush current controller, so that the input and the output operations of the high-voltage breaker are simple and easy to implement, can be finished without depending on professional after-sales personnel.

As a further improvement, the adapter is a socket, the high-voltage circuit breaker further comprises a plug matched with the socket, the connecting conductor is arranged on the plug, and the connecting conductor is installed and detached on the adapter through plugging and unplugging of the plug.

The beneficial effects are that: the plug and the socket are plugged to realize the connection of the connecting conductor on the adapter, the plug is pulled out to realize the detachment of the connecting conductor, and the plug and socket matched structure is adopted to ensure that the detachment and installation operation of the connecting conductor is very simple and easy.

As a further development, the plug end of the socket is located outside the mechanism housing, and the respective connecting conductor is at least partially detachably arranged on the plug, so that the plug with the detachable portion of the connecting conductor removed can be used as a guard for plugging into the socket without the controller contact and the transformer contact being brought into electrically conductive communication.

The beneficial effects are that: the plug end of the socket is located on the outer side of the mechanism box, the plug operation visual field of the plug is good, the operation space is wide, the plug operation of the plug is convenient for an operator to carry out, when the inrush current protection of a circuit is not needed, the plug is pulled down, the detachable part of the connecting conductor is detached, the plug is used as a protection piece and is plugged with the socket, and the protection of the socket with the plug end located on the outer side of the mechanism box is achieved.

As a further improvement, the connecting conductor comprises a transformer matching conductive piece and a controller matching conductive piece which are respectively matched with the transformer contact and the controller contact correspondingly, and further comprises a connecting conductive piece which is used for connecting the corresponding transformer matching conductive piece and the controller matching conductive piece in a conductive manner, the connecting conductive piece is detachably arranged on the plug, and the plug is provided with a wiring end used for being connected with secondary equipment.

The beneficial effects are that: after the secondary equipment fortune is to the scene, pull down the connecting conductive piece of plug and be connected plug and secondary equipment, insert through plug and socket and close can realize being connected of secondary equipment and high voltage circuit breaker, when realizing that secondary equipment and high voltage circuit breaker convenient and fast's are connected, need not additionally on high voltage circuit breaker and setting up secondary equipment wiring structure, one end multi-purpose makes high voltage circuit breaker have simple structure as far as possible.

As a further improvement, the plug is an aviation plug for connecting with a secondary device.

The beneficial effects are that: the aviation plug belongs to a standard part, is convenient to be matched with secondary equipment which is the standard part, and ensures that the high-voltage circuit breaker has good universality.

As a further improvement, the plug is an angle plug with a terminal bent downwards.

The beneficial effects are that: the angular plug enables the wiring end to face downwards, the difficulty of storing up sundries in the wiring end is improved, and the protection of the wiring end is achieved.

As a further improvement, the plug and the socket are fixed through a threaded fastener.

The beneficial effects are that: the plug is reliably fixed on the socket by adopting the threaded fastener, so that the reliability and the stability of the conductive connection between the plug and the socket are ensured.

As a further improvement, the adapter is a wire holder.

The beneficial effects are that: the adapter adopts the connection terminal structure, when needing to input the controller that shoves and shove the protection to the circuit, connect corresponding connecting conductor on the connection terminal can, compare in the structure that adopts the plug and socket formula, such adapter can not occupy too big space when using, and then the space that occupies when reducing high-voltage circuit breaker and using.

As a further improvement, the high-voltage circuit breaker further comprises a box cover matched with the wire holder in a sealing mode.

The beneficial effects are that: the box cover is arranged, so that the wire holder has a satisfactory protection grade, the wire holder is prevented from being polluted by rainwater, dust and other impurities in the surrounding environment, and the safety of the high-voltage circuit breaker is improved.

As a further improvement, the high-voltage circuit breaker comprises at least two adapter sockets, and at least one adapter socket is a connection socket, and when in use, one of the adapter sockets is selected to be switched between the current transformer and the inrush current controller.

The beneficial effects are that: the high-voltage circuit breaker is provided with the socket type adapter and the adapter simultaneously, a user can select a proper adapter to use according to actual needs, and the use convenience of the high-voltage circuit breaker is improved.

Drawings

Fig. 1 is an isometric view of embodiment 1 of a high voltage circuit breaker of the present invention;

fig. 2 is a schematic view of the internal structure of the mechanism case in a bottom view according to embodiment 1 of the high-voltage circuit breaker of the present invention;

fig. 3 is a front view of embodiment 1 of the high voltage circuit breaker of the present invention;

fig. 4 is a right side view of embodiment 1 of the high voltage circuit breaker of the present invention;

fig. 5 is a schematic circuit configuration diagram of embodiment 1 of the high voltage circuit breaker of the present invention;

fig. 6 is a schematic diagram of a jack classification of an aviation socket of embodiment 1 of the high-voltage circuit breaker of the present invention;

fig. 7 is a schematic structural view of the connection conductive member of the aviation plug of embodiment 1 of the high-voltage circuit breaker of the utility model connected with the corresponding contact pin;

description of reference numerals:

1. a mechanism box; 2. solid-sealing the pole; 3. a current transformer; 4. a mechanism trip coil; 5. an inrush current controller; 6. an aviation socket; 7. a wire holder; 8. an aviation plug; 9. a jack; 10. inserting a pin; 11. and connecting the conductive parts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be 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, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The specific embodiment 1 of the high-voltage circuit breaker provided by the utility model:

the structure of the high-voltage circuit breaker provided by the embodiment is as shown in fig. 1, and comprises a mechanism box 1, a solid-sealed polar pole 2 and a current transformer 3, wherein the solid-sealed polar pole 2 and the current transformer 3 are fixed on the mechanism box 1, as shown in fig. 2, a driving mechanism is arranged in the mechanism box 1, specifically, the driving mechanism comprises a mechanism release coil 4 arranged in the mechanism box 1, the high-voltage circuit breaker further comprises an inrush current controller 5 arranged in the mechanism box 1, and the inrush current controller is in control connection with the mechanism release coil 4.

In order to facilitate the switching and putting-in operation of the inrush current controller 5, the high-voltage circuit breaker further comprises an adapter arranged on the mechanism box 1, and the adapter is used for switching between the inrush current controller 5 and the current transformer 3. In this embodiment, as shown in fig. 3, two adapters are arranged on the mechanism box of the high-voltage circuit breaker, one of the adapters is an aviation socket 6, the other adapter is a wire holder 7, the aviation socket 6 is located on the front side wall of the mechanism box 1, the wire holder 7 is located on the right side wall of the mechanism box 1, the switching between the inrush current controller 5 and the current transformer 3 can be realized by both the aviation socket 6 and the wire holder 7, during specific operation, the adapter convenient for wiring operation can be selected to be used by combining with the specific installation position of the secondary equipment, so that the high-voltage circuit breaker has extremely high environmental adaptability.

Here, the structure and usage of the adapter in the form of a socket are described by taking the conductive member of the aviation socket 6 as an example, specifically, the socket of the aviation socket is used as a contact of the adapter, a part of the socket is a transformer socket, such as the socket A, B, C in fig. 6, the transformer socket is used as a transformer contact of the adapter and is in conductive connection with the current transformer 3, and a part of the socket is a controller socket, such as the sockets a ', B ', and C ' in fig. 6, the controller socket is used as a controller contact of the adapter and is in conductive connection with the inrush current controller 5, and the transformer sockets and the controller sockets correspond to each other one to one.

Based on the adapter is aviation socket structure, high voltage circuit breaker still includes aviation plug 8, aviation plug 8 is last to have connecting conductor, specifically, as shown in fig. 7, contact pin 10 of aviation plug 8 partly be with controller jack complex controller contact pin, as contact pin a ', b ', c ' in fig. 7, still partly be with mutual-inductor contact pin of mutual-inductor jack complex, as contact pin a, b, c in fig. 7, the controller contact pin is as controller cooperation electrically conductive piece and controller contact cooperation, the mutual-inductor contact pin is as mutual-inductor cooperation electrically conductive piece and mutual-inductor contact cooperation, welded connection has electrically conductive piece 11 between corresponding mutual-inductor contact pin and the controller contact pin, connect electrically conductive piece 11 can be located the grafting end surface, also can be located the insulator.

With regard to the detachable mounting of the connection conductor on the adapter, it is important to emphasize that the location and mounting structure of the connection conductor is such that it can be detached, without limiting the specific connection of the connection conductor to the contact of the adapter, and that the connection conductor 11 as described above can be located in an insulator, which should then be detachable, so that the connection conductor 11 can be exposed for detachment, and that the connection conductor can be soldered or screwed to the corresponding pin. In other embodiments, the connection conductor may be integrally connected to the contact of the adapter by welding, and when the connection conductor needs to be detached, the welded connection structure is broken. Of course, the whole connecting conductor can also be arranged on the adapter by adopting other structures which are more convenient to disassemble and assemble, such as screw compression joint and corresponding contact conductive connection.

In this embodiment, the transformer pin, the controller pin, and the connecting conductive member constitute a corresponding connecting conductor, and the connecting conductive member 11 serves as a detachable portion of the connecting conductor and can be detached as needed. After the aviation plug 8 is inserted with the aviation socket 6 and is closed in place, realize the removable installation of connecting conductor on the adapter, connecting conductor is with each corresponding mutual-inductor jack and the electrically conductive intercommunication of controller jack, thereby with the electrically conductive intercommunication of current transformer 3 with the controller 5 that shoves, realize the input of controller 5 that shoves, high voltage circuit breaker has protect function this moment, when needs connect secondary equipment or need shoves protect function, pull out aviation plug 8 and can remove the electrically conductive intercommunication of current transformer 3 with the controller 5 that shoves.

The corresponding circuit diagram is shown in fig. 5, three current transformers are Lha, LHb and LHc respectively, an inrush current controller is YL, a mechanism trip coil is SLJ, an aviation socket is HC, and an aviation plug is HK.

In this embodiment, the aviation plug 8 is one end multi-purpose, specifically, because the grafting end of aviation socket 6 is located the outside of mechanism case 1, need protect it to avoid external rainwater and debris to pollute, based on this, connect the welding position and the structure of electrically conductive piece and be convenient for operating personnel and reject it, at this moment, aviation plug 8 can regard as the protection piece to use and cooperate with aviation socket 6, protects the grafting end of aviation socket 6. Furthermore, the aviation plug 8 is also provided with a wiring end, the wiring end can be connected with secondary equipment, after the secondary equipment enters a field, the connecting conductive piece is removed, the aviation plug 8 is connected with the secondary equipment, and the processed aviation plug is in plug-in fit with the aviation socket 6 to achieve conductive connection of the secondary equipment and the current transformer 3, so that the aviation plug 8 has three purposes at one end.

In this embodiment, as shown in fig. 3 and 4, the aviation plug 8 is an angle-shaped structure in which the terminal is bent downward, so that the chance of sundries accumulating in the terminal can be effectively reduced. For guaranteeing stable the inserting of aviation plug 8 on the aviation socket closes, fix through threaded fastener between aviation socket 6 and the aviation plug 8, specifically, set up threaded hole around the aviation socket 6, correspondingly, the one end that aviation plug 8 and aviation socket 6 inserted and close has with the aviation socket 6 around the screw hole complex flange structure of seting up for aviation plug 8 can be fixed on aviation socket 6 through threaded fastener.

The structure of the wire holder 7 is as shown in fig. 3, the wire holder is provided with a wiring conductor, one part is a transformer wiring conductor, the transformer wiring conductor is used as a transformer contact of the adapter to be in conductive connection with the current transformer 3, the other part is a controller wiring conductor, the controller wiring conductor is used as a controller contact of the adapter to be in conductive connection with the inrush current controller 5, and when the inrush current controller 5 needs to be put into operation, the connection conductor is connected between the corresponding transformer contact and the controller contact; accordingly, when the inrush current controller 5 needs to be thrown back, the corresponding connection conductor is removed. In order to protect the wire holder 7, the high-voltage circuit breaker further includes a box cover (not shown) engaged with the wire holder 7, and the box cover and the wire holder are engaged to obtain a corresponding protection level, in this embodiment, the wire holder is protected by the box cover, so that the wire holder reaches the protection level of IP 65.

The specific embodiment 2 of the high-voltage circuit breaker provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the high-voltage circuit breaker has two kinds of adapter sockets simultaneously for the user can select according to actual conditions, and in this embodiment, the high-voltage circuit breaker only has the adapter socket of socket formula, and of course, in other embodiments, the high-voltage circuit breaker can also only have the adapter socket of connection base formula.

The specific embodiment 3 of the high-voltage circuit breaker provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the aviation plug does not have a pin, but only has a long strip-shaped connection conductor on the end face of the plug end.

The specific embodiment 4 of the high-voltage circuit breaker provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the inserting end of the aviation socket is located inside the mechanism box, and correspondingly, an operation window for an operator to insert and pull the aviation plug into and out of the mechanism box by extending the operation window with hands is formed in the mechanism box.

The specific embodiment 5 of the high-voltage circuit breaker provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the socket and the plug are a standard component, an aviation socket and an aviation plug, so that the plug and socket assembly is used for accessing the secondary device.

The specific embodiment 6 of the high-voltage circuit breaker provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the adapter is directly fixed to the mechanism box, and the mechanism box constitutes an installation base of the adapter.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments without inventive effort, or some technical features of the present invention may be substituted with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a high-voltage circuit breaker, includes the mechanism case and fixes solid utmost point post, current transformer and the controller that shoves on the mechanism case that seals, is provided with the actuating mechanism who is used for the drive to seal the branch closing action of utmost point post admittedly in the mechanism incasement, and the controller that shoves is connected with the controller control connection that shoves, characterized by, high-voltage circuit breaker still includes for the fixed adapter socket of mechanism case, and the partial contact of adapter socket is for the mutual-inductor contact of being connected with current transformer is electrically conductive, and some contact is for the controller contact of being connected with the controller that shoves, and mutual-inductor contact and controller contact one-to-one, high-voltage circuit breaker still include with each corresponding mutual-inductor contact and controller contact releasable connection in order to realize the connecting conductor of the electrically conductive intercommunication of corresponding mutual-inductor contact and controller contact.

2. The high-voltage circuit breaker as claimed in claim 1, wherein the adapter is a socket, the high-voltage circuit breaker further comprises a plug adapted to the socket, the connecting conductor is disposed on the plug, and the connecting conductor is attached to and detached from the adapter by plugging and unplugging the plug.

3. The high voltage circuit breaker of claim 2, wherein the mating end of the receptacle is located outside the mechanism housing, and wherein each of the connection conductors is at least partially removably attached to the plug such that removal of the removable portion of the connection conductor allows the plug to be used as a shield to mate with the receptacle without placing the controller contacts in conductive communication with the transformer contacts.

4. The high voltage circuit breaker as claimed in claim 3, wherein said connecting conductor comprises a transformer fitting conductive member and a controller fitting conductive member which are fitted correspondingly to the transformer contact and the controller contact, respectively, and a connecting conductive member which conductively connects the corresponding transformer fitting conductive member and the controller fitting conductive member, said connecting conductive member being detachably provided on a plug having a terminal for connection with the secondary device.

5. The high voltage circuit breaker according to claim 4, wherein said plug is an aircraft plug for connection to a secondary device.

6. The high voltage circuit breaker according to claim 4 or 5, wherein said plug is an angled plug with a terminal bent downwards.

7. The high voltage circuit breaker according to any of claims 2-5, wherein the plug and the socket are secured by a threaded fastener.

8. The high voltage circuit breaker according to claim 1, wherein the adapter is a wire holder.

9. The high voltage circuit breaker of claim 8, further comprising a lid sealingly engaged with the wire holder.

10. The high voltage circuit breaker according to any of claims 2-5, wherein the high voltage circuit breaker comprises at least two adapters, and at least one of the adapters is a wire holder, wherein, in use, one of the adapters is selected to be switched between the current transformer and the inrush current controller.

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