CN115662822A - Totally-enclosed insulated isolating switch - Google Patents
Totally-enclosed insulated isolating switch Download PDFInfo
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- CN115662822A CN115662822A CN202211236732.1A CN202211236732A CN115662822A CN 115662822 A CN115662822 A CN 115662822A CN 202211236732 A CN202211236732 A CN 202211236732A CN 115662822 A CN115662822 A CN 115662822A
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Abstract
The utility model provides a totally closed insulation isolator relates to distribution equipment technical field. This totally closed insulation isolator includes: at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, the isolating switch, the grounding terminal head, the solid insulating material and the connecting disc; the isolating switch comprises: the isolating switch comprises an insulating sealing air cavity, an anchor-shaped moving contact, a plurality of fixed contacts, a moving contact insulating support rod and an isolating switch shell; a first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer cone-type plug connector and/or the inner cone-type plug connector through metal conductors poured in solid insulating materials, and a third static contact is connected with the grounding terminal head through the metal conductors; the connecting disc is arranged between the outer cone type plug connector and the solid insulating material, and/or the connecting disc is arranged at the plug interface of the inner cone type plug interface. The multi-station isolating switch is used for solving the problems that a multi-station isolating switch in the related technology is large in size and inconvenient to install and disassemble.
Description
Technical Field
The disclosure relates to the technical field of distribution equipment, in particular to a totally-enclosed insulated isolating switch.
Background
The isolating switch is one of very important devices in the power supply industry, can be applied to electrical devices such as switch cabinets and plays a very important role in the safe operation of the electrical devices. The isolator mainly used: after opening, establishing a reliable insulation gap, and disconnecting the equipment or the line to be overhauled from the power supply so as to ensure the safety of maintainers and equipment; the small current in the control circuit is divided and combined, such as the charging current of a sleeve, a bus, a connector, a short cable, the no-load exciting current of a transformer with certain capacity and the like.
In the related art, the multi-station disconnecting switch is usually large in size due to structural design, and is fixed with electrical equipment, so that the multi-station disconnecting switch is inconvenient to install and disassemble.
Disclosure of Invention
In order to solve among the switch electrical equipment multistation isolator's the volume great, and be connected with other electrical equipment, the technical problem of installation and dismantlement not convenient for, this disclosure provides a totally closed insulating isolator, includes:
at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, the isolating switch, the grounding terminal head, the solid insulating material and the connecting disc;
the isolator is wrapped in the solid insulating material, the isolator includes: the isolation switch comprises an insulation sealing air cavity, an anchor-shaped moving contact, a plurality of static contacts, a moving contact insulation support rod and an isolation switch shell; the insulating sealing air cavity is cylindrical, the plurality of static contacts are arranged in the insulating sealing air cavity on the same circular arc at equal angle intervals, and the planes where the plurality of static contacts are located are parallel to the bottom surface of the cylinder; a first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer cone-type plug connector and/or the inner cone-type plug connector through a metal conductor poured in the solid insulating material, and a third static contact is connected with the grounding terminal head through a metal conductor poured in the solid insulating material;
the connecting disc is arranged between the outer cone type plug connector and the solid insulating material, and/or the connecting disc is arranged at the plug interface of the inner cone type plug interface;
one end of the moving contact insulating support rod is connected with the anchor-shaped moving contact and is used for driving the anchor-shaped moving contact to rotate, and the anchor-shaped moving contact is in an anchor shape or an arc shape.
Optionally, the totally-enclosed insulated disconnecting switch includes one or more internal cone type sockets.
Optionally, the totally-enclosed insulated disconnecting switch includes one or more external cone-type plug connectors.
Optionally, the first fixed contact, the second fixed contact, and the third fixed contact are respectively in contact with the anchor-shaped movable contact in a sliding friction manner.
Optionally, the first fixed contact and the anchor-shaped movable contact are in contact by means of sliding friction, the second fixed contact and the third fixed contact are both wedge-shaped contacts and are provided with pressure butt-joint surfaces, and the second fixed contact and the third fixed contact are in pressure butt-joint contact with the anchor-shaped movable contact through the pressure butt-joint surfaces.
Optionally, the totally-enclosed insulated disconnecting switch further comprises an optical fiber temperature measuring sensor, and a temperature measuring probe of the optical fiber temperature measuring sensor is poured into the solid insulating material and is used for acquiring the temperature of the totally-enclosed insulated disconnecting switch.
Optionally, the insulating sealed gas cavity is vacuum or filled with insulating gas.
Optionally, the isolating switch further includes a fourth stationary contact.
Compared with the prior art, the method has the following beneficial effects:
the totally closed insulation isolator that this disclosure provided includes: at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, the isolating switch, the grounding terminal head, the solid insulating material and the connecting disc; the isolator is wrapped in the solid insulating material, the isolator includes: the isolation switch comprises an insulation sealing air cavity, an anchor-shaped moving contact, a plurality of static contacts, a moving contact insulation support rod and an isolation switch shell; the insulating sealing air cavity is cylindrical, the plurality of static contacts are arranged in the insulating sealing air cavity on the same circular arc at equal angle intervals, and the planes where the plurality of static contacts are located are parallel to the bottom surface of the cylinder; a first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer cone-type plug connector and/or the inner cone-type plug connector through metal conductors poured in the solid insulating material, and a third static contact is connected with the grounding terminal head through the metal conductors poured in the solid insulating material; the connecting disc is arranged between the outer cone type plug connector and the solid insulating material, and/or the connecting disc is arranged at the plug interface of the inner cone type plug interface; one end of the moving contact insulating support rod is connected with the anchor-shaped moving contact and is used for driving the anchor-shaped moving contact to rotate. In the totally-enclosed insulated isolating switch provided by the embodiment of the disclosure, a passage is formed between two adjacent static contacts under the condition that the two adjacent static contacts are both connected with the anchor-shaped moving contact; or under the condition that two adjacent static contacts are not connected with the anchor-shaped moving contact, an open circuit is formed between the two adjacent static contacts. The inner cone type plug-in connector can be used for being connected with electrical equipment, cables or pipe nuts; the outer cone type plug can be used for being connected with electrical equipment. A plurality of static contacts are arranged on the same circular arc, and the internal structure of the cavity of the insulation sealing air cavity can be utilized to the maximum extent, so that a smaller insulation sealing air cavity can be arranged under the same insulation strength requirement, and the size of the totally-enclosed insulation isolating switch is reduced. In addition, the totally-enclosed insulated disconnecting switch provided by the embodiment of the disclosure comprises an inner cone type plug-in connector and/or an outer cone type plug-in connector, and can be connected with electrical equipment, cables or a tubular bus through the inner cone type plug-in connector, and is connected with the electrical equipment (such as a switch cabinet) through the outer cone type plug-in connector, so that the operability of installation and disassembly of the totally-enclosed insulated disconnecting switch can be improved, and a user can conveniently install and disassemble the totally-enclosed insulated disconnecting switch.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a cross-sectional view of a fully enclosed insulated disconnect switch provided in accordance with one embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating positions of a moving contact and a static contact when an isolator is disconnected according to an embodiment of the present disclosure;
FIG. 3 is a sectional view of a totally enclosed insulated switchgear provided in accordance with another embodiment of the present disclosure;
fig. 4 is a sectional view of a fully enclosed insulated disconnect switch provided in accordance with yet another embodiment of the present disclosure.
Wherein, in the figure, 11-isolation switch; 12-an internal cone type socket; 13-an external cone type plug; 14-a ground terminal head; 15-solid insulating material; 16-a connecting disc; 17-a metal conductor; 18-a temperature probe; 111-insulated sealed air cavity; 112-anchor shaped moving contact; 1131 — a first stationary contact; 1132-a second stationary contact; 1133, a third stationary contact; 114-moving contact insulating support rod; 115-isolating switch housing.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described as "exemplary" or "e.g.," in an embodiment of the present disclosure is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The totally-enclosed insulated isolating switch provided by the embodiment of the disclosure can be applied to the high-voltage field, realizes the passage, the circuit breaking, the equipment grounding and the like of a high-voltage circuit, and can be applied to a high-voltage switch cabinet. The totally-enclosed insulated isolating switch provided by the embodiment of the disclosure is independent from the electrical equipment using the totally-enclosed insulated isolating switch, and can be directly replaced or maintained without operations such as overhaul and the like on the connected switch when being applied to a switch cabinet.
The fully enclosed insulated disconnect switch provided by the present disclosure is illustrated by several specific embodiments below.
The totally closed insulation isolator that this application embodiment provided includes: at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, and isolator, ground terminal head, solid insulating material and connection pad.
That is, the totally enclosed insulation isolator that this application embodiment provided includes: the plug comprises an inner cone type plug interface, an outer cone type plug connector, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc; or, the totally-enclosed insulated isolating switch includes: the connector comprises an inner cone type socket, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc; or, the totally-enclosed insulated isolating switch comprises: the external cone type plug connector comprises an external cone type plug connector, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc.
The following describes the above cases respectively:
in a first aspect, the hermetically sealed insulated switchgear includes: the connector comprises an inner cone type socket, an outer cone type connector, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc. Fig. 1 shows that the totally-enclosed insulated disconnector includes two inner cone type sockets and one outer cone type socket as an example.
Referring to fig. 1, the totally enclosed insulated disconnecting switch comprises a disconnecting switch 11, an inner cone type socket 12, an outer cone type plug 13, a ground terminal head 14, a solid insulating material 15 and a connecting disc 16.
The isolating switch 11 is wrapped in the solid insulating material 15, and the isolating switch 11 includes an insulating sealed air cavity 111, an anchor-shaped moving contact 112, a plurality of static contacts (a first static contact 1131, a second static contact 1132 and a third static contact 1133), a moving contact insulating support rod 114, and an isolating switch shell 115; the insulation sealing air cavity is cylindrical, the plurality of static contacts are arranged in the insulation sealing air cavity 111 on the same circular arc at equal angle intervals, and the planes of the plurality of static contacts are parallel to the bottom surface of the cylinder; a first fixed contact 1131, a second fixed contact 1132, and a third fixed contact 1133 of the plurality of fixed contacts are respectively connected to the outer cone-type plug 13, the inner cone-type plug 12, and the ground terminal head 14 through the metal conductor 17 in the solid insulation filling cavity.
Specifically, the first static contact 1131 is configured to be connected to the outer conical plug 13, the second static contact 1132 is configured to be connected to the inner conical plug 12, and the third static contact 1133 is configured to be connected to the ground terminal head 14.
The angle interval can be understood as an included angle between straight lines where center lines of two adjacent static contacts are located, and the angle interval is 120 degrees under the condition that the totally-enclosed insulated isolating switch is a three-station isolating switch.
The solid insulating material 15 is a whole body, and may be epoxy resin, and the type and kind of the solid insulating material are not limited in the embodiment of the present disclosure.
Optionally, the insulating sealed air cavity 111 may be vacuum insulated or filled with an insulating gas, where the insulating gas may be an insulating gas such as SF6, nitrogen, and dry air, or a mixed insulating gas composed of multiple insulating gases in SF6, nitrogen, and dry air in a preset ratio, and embodiments of the present disclosure are not specifically limited.
It should be noted that fig. 1 is a schematic structural diagram of a fully-closed insulating isolating switch given by taking three stations as an example, but the isolating switch provided in this embodiment is not limited to a three-station isolating switch, and when the functions required by the isolating switch are increased, a greater number of static contacts can be arranged to form a multi-station isolating switch, such as a four-station isolating switch. Similarly, the interval between two adjacent fixed contacts is preferably equal.
Specifically, when the totally-enclosed insulated disconnector provided in the embodiment of the present disclosure is a three-position disconnector, referring to fig. 1, the first fixed contact 1131, the second fixed contact 1132, and the third fixed contact 1133 are disposed on the arc where the first fixed contact 1131, the second fixed contact 1132, and the third fixed contact 1133 are disposed at equal angular intervals, that is, an included angle between a straight line where a center line of the first fixed contact 1131 is located and a straight line where a center line of the second fixed contact 1132 is located is 120 °, an included angle between a straight line where a center line of the second fixed contact 1132 is located and a straight line where a center line of the third fixed contact 1133 is located is 120 °, and correspondingly, a central angle corresponding to an arc line where the anchor-shaped movable contact 112 is located is also 120 °.
Optionally, the fixed contacts may include more than three fixed contacts, for example, the number of the fixed contacts is 4. For example, if the number of the fixed contacts is 4, the isolating switch further includes a fourth fixed contact, and the totally-enclosed insulated isolating switch is a four-station isolating switch.
Under the condition that the number of the static contacts is n, the included angle between straight lines where the center lines of two adjacent static contacts are located is 360 degrees/n, the central angle corresponding to the arc line where the anchor-shaped moving contact is located is also 360 degrees/n, and the unit angle of rotation of the moving contact is 360 degrees/2 x n.
Compared with other closed all-insulated multi-station isolating switches in the related art, the multi-station isolating switch has the advantages that the plurality of static contacts are arranged on the same arc at equal angle intervals, the cavity structure of the insulated sealing air cavity can be utilized to the greatest extent, the distance between different electrodes is increased, and the purpose that the larger insulating performance is obtained in the state of a smaller insulated sealing air cavity is achieved. The insulating property of the moving contact insulating support rod also ensures that the moving contact insulating support rod realizes better insulating property under the condition of a smaller insulating sealing air cavity. In summary, under the same requirement of insulation strength, the totally-enclosed insulated disconnecting switch provided by the embodiment of the disclosure has a smaller volume.
The inner cone type plug-in port 12 is embedded in one end of the solid insulating material and is used for being connected with a cable, a pipe bus or electrical equipment; the outer cone type plug 13 and the inner cone type plug are arranged at the other end of the solid insulating material in opposite positions, and are used for connecting the totally-enclosed insulated isolating switch with the inner cone type plug of the electrical equipment, for example, the totally-enclosed insulated isolating switch is used for being connected with the inner cone type plug of the electrical equipment such as a switch cabinet.
The connecting disc 16 is circular, is arranged between the outer cone type plug connector and the solid insulating material, and is arranged at the plug interface of the inner cone type plug interface and is used for fixing the connected electrical equipment.
One end of the moving contact insulating support rod 114 is connected to the anchor-shaped moving contact 112 for driving the anchor-shaped moving contact to rotate, and the anchor-shaped moving contact is in an anchor shape or an arc shape. The anchor-shaped moving contact is driven by the moving contact insulating support rod to rotate so as to achieve the effect that the anchor-shaped moving contact is connected with two adjacent fixed contacts to achieve the mutual conduction state of the two fixed contacts, or is not connected with any two adjacent fixed contacts to achieve the disconnection state.
The totally closed insulation isolator that this disclosed embodiment provided includes: at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, the isolating switch, the grounding terminal head, the solid insulating material and the connecting disc; the isolator is wrapped in the solid insulating material, the isolator includes: the isolation switch comprises an insulation sealing air cavity, an anchor-shaped moving contact, a plurality of static contacts, a moving contact insulation support rod and an isolation switch shell; the insulating sealing air cavity is cylindrical, the plurality of static contacts are arranged in the insulating sealing air cavity on the same circular arc at equal angle intervals, and the planes where the plurality of static contacts are located are parallel to the bottom surface of the cylinder; a first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer cone-type plug connector and/or the inner cone-type plug connector through a metal conductor poured in the solid insulating material, and a third static contact is connected with the grounding terminal head through a metal conductor poured in the solid insulating material; the connecting disc is arranged between the outer cone type plug connector and the solid insulating material, and/or the connecting disc is arranged at the plug interface of the inner cone type plug interface; one end of the moving contact insulating support rod is connected with the anchor-shaped moving contact and is used for driving the anchor-shaped moving contact to rotate. In the totally-enclosed insulated isolating switch provided by the embodiment of the disclosure, a passage is formed between two adjacent static contacts under the condition that the two adjacent static contacts are both connected with the anchor-shaped moving contact; or under the condition that two adjacent static contacts are not simultaneously connected with the anchor-shaped moving contact, an open circuit is formed between the two adjacent static contacts. The inner cone type plug-in port can be used for being connected with electrical equipment, cables or pipe nuts; the outer cone-type connector can be used for being connected with electrical equipment. A plurality of static contacts are arranged on the same circular arc, and the internal structure of the cavity of the insulation sealing air cavity can be utilized to the maximum extent, so that a smaller insulation sealing air cavity can be arranged under the same requirement on the insulation strength, and the size of the totally-enclosed insulation isolating switch is reduced. In addition, the totally-enclosed insulated isolating switch provided by the embodiment of the disclosure comprises an inner cone type plug-in interface and/or an outer cone type plug-in connector, and can be connected with electrical equipment, cables or pipe buses through the inner cone type plug-in interface, and is connected with the electrical equipment (such as a switch cabinet) through the outer cone type plug-in connector, so that the installation and disassembly operability of the totally-enclosed insulated isolating switch can be improved, and a user can conveniently install and disassemble the totally-enclosed insulated isolating switch.
Optionally, the totally-enclosed insulated disconnecting switch provided by the embodiment of the disclosure may further include an optical fiber temperature measuring sensor, and a temperature measuring probe 18 of the optical fiber temperature measuring sensor is poured into the solid insulating material and used for acquiring the temperature of the totally-enclosed insulated disconnecting switch.
The optical fiber temperature measuring sensor is connected with the display device through the optical fiber through hole, and a user can read the temperature of the totally-enclosed insulated isolating switch through the display device.
For example, referring to fig. 1, the anchor-shaped movable contact 112 is in contact with a first stationary contact 1131, and there is no electrical path between the three stationary contacts, that is, the totally-enclosed insulated isolating switch is in an off state; when the anchor-shaped moving contact 112 rotates clockwise by 60 ° with the current position shown in fig. 1 as an initial position, the anchor-shaped moving contact 112 simultaneously contacts with the first fixed contact 1131 and the second fixed contact 1132, and at this time, the first fixed contact 1131 and the second fixed contact 1132 form an electrical path, that is, the totally-enclosed insulated disconnector is in a conducting state; when the anchor-shaped moving contact 112 rotates 60 ° counterclockwise with the current position shown in fig. 1 as the starting position, the anchor-shaped moving contact 112 contacts with the first stationary contact 1131 and the third stationary contact 1133 at the same time, and at this time, the first stationary contact 1131 and the third stationary contact 1133 form an electrical path, that is, the totally-enclosed insulated disconnector is in a grounded state.
In the totally enclosed insulated disconnector shown in fig. 1, the first fixed contact, the second fixed contact, and the third fixed contact are respectively in contact with the anchor-shaped moving contact in a sliding friction manner.
Optionally, referring to fig. 2, the first fixed contact is in contact with the anchor-shaped moving contact in a sliding friction manner, the second fixed contact and the third fixed contact are both wedge-shaped contacts and are provided with pressure abutting surfaces, and the second fixed contact and the third fixed contact are in pressure abutting contact with the anchor-shaped moving contact through the pressure abutting surfaces.
That is, the end surface 21 of the first stationary contact 1131 contacts with the curved surface 31 of the anchor-shaped movable contact 112, so as to be slidable. The second static contact 1132 is provided with a pressure abutting surface 22, and the third static contact 1133 is provided with a pressure abutting surface 23, which is used for forming pressure abutting contact with the anchor-shaped moving contact through the pressure abutting surfaces, respectively.
When the anchor-shaped moving contact 112 is located at the position shown in fig. 2, there is no electrical path between the three fixed contacts (the first fixed contact, the second fixed contact, and the third fixed contact), and at this time, the totally-enclosed insulated disconnecting switch is in an off state; when the anchor-shaped moving contact 112 rotates clockwise by 60 degrees with the current position as the initial position, the cross section 32 of one end of the anchor-shaped moving contact 112 forms a pressure butting contact with the pressure butting face 22 of the second fixed contact 1132, the curved surface of the other end of the anchor-shaped moving contact 112 forms a sliding contact with the first fixed contact 1131, and at this time, the first fixed contact 1131 and the second fixed contact 1132 form an electrical path, that is, the totally-enclosed insulated disconnector is in a conducting state; when the anchor-shaped moving contact 112 rotates 60 degrees counterclockwise with the current position as the starting position, the cross section 33 of one end of the anchor-shaped moving contact 112 forms a pressure abutting surface 23 with the third stationary contact 1133 to make a pressure abutting contact, the curved surface of the other end of the anchor-shaped moving contact 112 makes a sliding contact with the first stationary contact 1131, and at this time, the first stationary contact 1131 and the third stationary contact 1133 form an electrical path, that is, the totally-enclosed insulated disconnector is in a grounding state.
In the fully-closed insulation isolating switch provided by the embodiment of the disclosure, the second fixed contact, the third fixed contact and the anchor-shaped movable contact are in pressure butt contact, so that sliding friction between the second fixed contact and the anchor-shaped movable contact as well as between the third fixed contact and the anchor-shaped movable contact can be reduced, thereby reducing the generation of metal debris in the insulation sealing air cavity and reducing the probability of failure of the fully-closed insulation isolating switch.
In a second aspect, the totally enclosed insulated switchgear includes: the connector comprises an inner cone type socket, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc. The number of the inner cone type insertion ports can be one or more, and the arrangement positions of the inner cone type insertion ports are not particularly limited under the condition that the totally-enclosed insulated isolating switch comprises a plurality of inner cone type insertion ports.
Exemplarily, referring to fig. 3, fig. 3 shows that the totally enclosed insulated disconnector includes 4 internal cone type sockets as an example, two of the internal cone type sockets 12 are a first group and are embedded in one end of the solid insulating material 111, and the other two internal cone type sockets are a second group and are disposed at the other end of the solid insulating material 111 in a position opposite to the internal cone type sockets of the first group.
A first fixed contact and a second fixed contact in the plurality of fixed contacts are respectively connected with the first group of inner cone type plug-in ports and the second group of inner cone type plug-in ports through metal conductors poured in the solid insulating material, and a third fixed contact is connected with the grounding terminal head 14 through the metal conductors poured in the solid insulating material; the connecting disc 16 is arranged at the socket of the inner cone type socket and used for fixing the electrical equipment connected with the totally-enclosed insulated disconnecting switch through the socket of the inner cone type socket.
By arranging the inner cone type insertion ports, the totally-enclosed insulated isolating switch can be simultaneously connected with a plurality of electrical equipment, cables or tube buses and the like.
In this embodiment, the shape, number, and the like of the static contact are not limited, and specific descriptions and descriptions can be referred to the foregoing embodiments, which are not repeated herein.
In a third aspect, the totally enclosed insulated disconnect switch comprises: the external cone type plug connector comprises an external cone type plug connector, an isolating switch, a grounding terminal head, a solid insulating material and a connecting disc. The number of the outer cone type connecting plugs can be one or more, and the arrangement positions of the outer cone type connecting plugs are not particularly limited under the condition that the totally-enclosed insulated isolating switch comprises a plurality of outer cone type connecting plugs.
Illustratively, referring to fig. 4, fig. 4 illustrates that the totally enclosed insulated disconnector includes 2 external cone-type plugs 13, and the 2 external cone-type plugs are disposed at two ends of the solid insulating material in opposite positions.
A first fixed contact and a second fixed contact in the plurality of fixed contacts are respectively connected with 2 outer cone-type plug connectors through metal conductors poured in the solid insulating material, and a third fixed contact is connected with the grounding terminal head 14 through the metal conductors poured in the solid insulating material; the connecting disc 16 is arranged between the outer cone type plug connector and the solid insulating material and used for fixing the electrical equipment connected with the totally-enclosed insulating isolating switch through the outer cone type plug connector.
In this embodiment, the shape, number, and the like of the static contact are not limited, and specific descriptions and descriptions can be referred to the foregoing embodiments, which are not repeated herein.
By arranging a plurality of outer cone type connecting plugs, the totally-enclosed insulated isolating switch can be simultaneously connected with a plurality of electrical devices.
It is noted that, in this document, 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, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (8)
1. A totally-enclosed insulated isolating switch is characterized by comprising:
at least one of the inner cone type plug-in interface and the outer cone type plug-in interface, the isolating switch, the grounding terminal head, the solid insulating material and the connecting disc;
the isolator wraps up in the solid insulating material, the isolator includes: the isolating switch comprises an insulating sealing air cavity, an anchor-shaped moving contact, a plurality of fixed contacts, a moving contact insulating support rod and an isolating switch shell; the insulating sealing air cavity is cylindrical, the plurality of static contacts are arranged in the insulating sealing air cavity on the same circular arc at equal angle intervals, and the planes where the plurality of static contacts are located are parallel to the bottom surface of the cylinder; a first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer cone-type plug connector and/or the inner cone-type plug connector through a metal conductor poured in the solid insulating material, and a third static contact is connected with the grounding terminal head through a metal conductor poured in the solid insulating material;
the connecting disc is arranged between the outer cone type plug connector and the solid insulating material, and/or the connecting disc is arranged at the plug interface of the inner cone type plug interface;
one end of the moving contact insulation support rod is connected with the anchor-shaped moving contact and is used for driving the anchor-shaped moving contact to rotate, and the anchor-shaped moving contact is in an anchor shape or an arc shape.
2. The totally enclosed insulated switchgear according to claim 1, wherein said totally enclosed insulated switchgear comprises one or more of said female cone type sockets.
3. The totally enclosed insulated switchgear according to claim 1, wherein said totally enclosed insulated switchgear comprises one or more of said male cone type connectors.
4. The totally enclosed insulated switchgear according to claim 1, wherein the first stationary contact, the second stationary contact and the third stationary contact are in contact with the anchor-shaped moving contact by means of sliding friction, respectively.
5. The totally-enclosed insulated isolating switch according to claim 1, wherein the first fixed contact is in contact with the anchor-shaped moving contact by means of sliding friction, the second fixed contact and the third fixed contact are both wedge-shaped contacts and are provided with pressure abutting surfaces, and the second fixed contact and the third fixed contact are in pressure abutting contact with the anchor-shaped moving contact through the pressure abutting surfaces.
6. A totally enclosed insulated switchgear according to any of claims 1 to 5, characterized in that, the totally enclosed insulated switchgear further comprises an optical fiber temperature sensor, a temperature probe of the optical fiber temperature sensor is poured into the solid insulation material for obtaining the temperature of the totally enclosed insulated switchgear.
7. The totally enclosed insulated switchgear according to claim 1, wherein said insulated sealed gas chamber is vacuum or filled with an insulating gas.
8. The totally enclosed, insulated and isolated switch according to claim 1, wherein said isolated switch further comprises a fourth stationary contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211236732.1A CN115662822A (en) | 2022-10-10 | 2022-10-10 | Totally-enclosed insulated isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211236732.1A CN115662822A (en) | 2022-10-10 | 2022-10-10 | Totally-enclosed insulated isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN115662822A true CN115662822A (en) | 2023-01-31 |
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|---|---|---|---|
| CN202211236732.1A Pending CN115662822A (en) | 2022-10-10 | 2022-10-10 | Totally-enclosed insulated isolating switch |
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| CN (1) | CN115662822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995600A (en) * | 2024-04-03 | 2024-05-07 | 浙江南洋输配电设备有限公司 | Switching method of double-incoming-line vacuum circuit breaker isolation equipment and vacuum isolation equipment |
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2022
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995600A (en) * | 2024-04-03 | 2024-05-07 | 浙江南洋输配电设备有限公司 | Switching method of double-incoming-line vacuum circuit breaker isolation equipment and vacuum isolation equipment |
| CN117995600B (en) * | 2024-04-03 | 2024-06-11 | 浙江南洋输配电设备有限公司 | Switching method of double-incoming-line vacuum circuit breaker isolation equipment and vacuum isolation equipment |
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