CN219350963U - Vertical rotation normal pressure sealing air insulation switch equipment - Google Patents
Vertical rotation normal pressure sealing air insulation switch equipment Download PDFInfo
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- CN219350963U CN219350963U CN202320622376.0U CN202320622376U CN219350963U CN 219350963 U CN219350963 U CN 219350963U CN 202320622376 U CN202320622376 U CN 202320622376U CN 219350963 U CN219350963 U CN 219350963U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The vertical rotation normal pressure sealed air insulation switch equipment comprises a sealed cabinet body and three-phase bus assemblies, wherein each phase bus assembly comprises two bus expansion sleeves, an upper bus, an upper fixed contact, a lower bus, a lower fixed contact and an outgoing terminal, wherein the two bus expansion sleeves are respectively arranged at two sides of the sealed cabinet body and are connected through the upper bus; the lower fixed contact and the wire outlet terminal are respectively connected to the upper end and the lower end of the lower bus, and the wire outlet terminal is arranged on one side of the sealed cabinet body; the isolating circuit breaker grounding device comprises an isolating shaft, an isolating operating mechanism and three-phase solid-sealed polar poles, wherein the three-phase solid-sealed polar poles are arranged on the isolating shaft, the isolating shaft is rotationally connected with the sealed cabinet body, and the isolating shaft is driven to rotate through the operating mechanism; the three-phase solid-sealed polar pole is respectively matched with the three-phase bus assembly. Through the structure, harmful substances are isolated outside the sealed cabinet body, and the environmental resistance of the switch equipment is improved.
Description
Technical Field
The utility model relates to the technical field of switch equipment, in particular to longitudinally rotating normal-pressure sealed air insulation switch equipment.
Background
The secondary distribution substation, the switching station, the box-type substation and the like have wide distribution network engineering quantity and vigorous long-term demand, and are important components of the power system. The switch cabinets used in the current distribution network engineering are various in types, and cabinet type types such as air insulation, solid insulation, SF6 gas insulation, sealing environment-friendly gas and the like are all used in the market, wherein the solid insulation switch cabinet is high in cost, a large amount of insulating materials are used, the process is complex, and the structure partial discharge control is difficult. SF6 gas insulation switch cabinet is traditional cabinet type, and its cost is low, makes simply, but has gas leakage risk, reliability and environmental pollution problem, and SF6 gas is more serious greenhouse gas. The traditional air insulation switch cabinet has no problems existing in the two cabinets, has simple structure and process and multiple types, but is usually large in volume, and the volume needs to be further compressed under the actual requirement of increasingly reducing the occupied area.
In addition, in sand-raising or southern areas, the air-insulated open type switch cabinet is easy to allow humid air, dust and the like to enter the switch cabinet, and electric elements, particularly electric joints, are easy to accumulate dust and rust, so that the long-term stable use of the elements is affected. In order to increase the environmental resistance of the switch cabinet, the requirements of special areas with large temperature differences of sand raising, high temperature, high humidity, salt fog, morning and evening are better met, the adverse effect of the external environment on equipment is reduced, the high-pressure element is sealed in the normal-pressure air sealing box to the greatest extent, the environmental resistance of the product is improved, and the service life cycle of the product and the operation safety of the product are improved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a vertical rotation normal pressure sealed air insulation switch device which reduces the volume of a switch cabinet while adopting air insulation.
In order to achieve the purpose, the scheme provided by the utility model is that the vertical rotation normal pressure sealed air insulation switch equipment comprises a sealed cabinet body and a three-phase bus assembly, wherein the three-phase bus assembly is arranged in the sealed cabinet body; each phase of bus assembly comprises two bus expansion sleeves, an upper bus, an upper fixed contact, a lower bus, a lower fixed contact and an outgoing terminal, wherein the two bus expansion sleeves are respectively arranged at two sides of the sealed cabinet body, and the two bus expansion sleeves are connected through the upper bus; the upper fixed contact is arranged at the bottom of the upper bus; the lower fixed contact and the wire outlet terminal are respectively connected to the upper end and the lower end of the lower bus, and the wire outlet terminal is arranged on one side of the sealed cabinet body; the isolating circuit breaker grounding device comprises an isolating shaft, an isolating operating mechanism and three-phase solid-sealed polar poles, wherein the three-phase solid-sealed polar poles are arranged on the isolating shaft, the isolating shaft is rotationally connected with the sealed cabinet body, and the isolating shaft is driven to rotate through the operating mechanism; the three phases of the solid sealed polar poles are respectively matched with the three-phase bus assembly, wherein two ends of each phase of the solid sealed polar poles are respectively used for being contacted with an upper fixed contact and a lower fixed contact of each phase of the bus assembly.
Further, the operating mechanism is connected to the outer surface of the sealed cabinet body in a sealing mode.
Further, the distance between the bus bar assemblies of each phase is greater than 125m.
Further, in each phase of the bus bar assembly, an insulating member is connected to an upper end of the lower bus bar, and the insulating member is mounted to one side of the sealed cabinet.
The ground switch device comprises three ground disconnecting links and a ground shaft, wherein the ground shaft is rotatably connected to the sealed cabinet body, and one ends of the three ground disconnecting links are arranged on the ground shaft; the three grounding disconnecting switches are respectively used for being connected with the lower static contact of the three-phase bus assembly in a matched mode.
The beneficial effects of the utility model are as follows: through with two bus-expanding sleeve pipes, go up the bus, go up the static contact, lower bus, lower static contact, outlet terminal, earthing switch device and isolation circuit breaker earthing device totally enclosed in sealed cabinet body, outside dust, high humidity, harmful substance such as salt fog are isolated outside, increased switchgear's environmental resistance for switchgear suits better and raises sand, high temperature, high humidity, salt fog, the requirement in the big special region of early and late difference in temperature, reduces external environment to switchgear's adverse effect.
Through above-mentioned structure, with last busbar, go up the static contact, solid utmost point post, lower static contact and lower busbar from top to bottom arrange, through installing two bus-expanding sleeve pipes respectively in the left side and the right side of the sealed cabinet body, through arranging insulating element and earthing switch device respectively in the left side and the right side of lower static contact for compact structure is reasonable, does benefit to the realization switchgear miniaturization.
In addition, through the structure, when the isolating circuit breaker grounding device is in a breaking state, the upper bus, the isolating circuit breaker grounding device and the lower bus are connected with each other without insulating materials, so that the risk of interphase insulation failure short circuit is avoided, and the use safety of the switch equipment is improved on the premise of ensuring compact structure.
Drawings
Fig. 1 is a front view of the interior of a sealed cabinet.
Fig. 2 is a rear view of the interior of the sealed cabinet.
Fig. 3 is a schematic diagram of a switching device.
Wherein, the device comprises a 11-bus expansion sleeve, a 12-upper bus, a 13-upper static contact, a 21-solid sealed polar pole, a 22-isolating shaft and a 23-operating mechanism, 31-lower static contact, 32-lower bus, 33-outlet terminal, 34-insulating element, 41-earthing knife-switch, 42-earthing shaft, 5-sealed cabinet.
Description of the embodiments
In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 3, in the present embodiment, a vertical rotation normal pressure sealed air insulated switchgear includes a sealed cabinet 5, a three-phase bus assembly and an isolating breaker grounding device, wherein the three-phase bus assembly is disposed inside the sealed cabinet 5. The distance between each phase of bus assemblies is larger than 125m, so that the distance between each phase of bus assemblies is larger than the insulation distance which can be achieved by air on the premise of ensuring the stability and safety of electrical performance. Each phase of bus group comprises two bus expansion sleeves 11, an upper bus 12, an upper fixed contact 13, a lower bus 32, a lower fixed contact 31 and an outgoing terminal 33, wherein the two bus expansion sleeves 11 are respectively arranged on the left side and the right side of the sealed cabinet body 5, and the two bus expansion sleeves 11 are connected with each other through the upper bus 12; the upper stationary contact 13 is mounted to the bottom of the upper bus bar 12. The lower stationary contact 31 and the wire outlet terminal 33 are connected to the upper and lower ends of the lower bus bar 32, respectively, and the wire outlet terminal 33 is installed at one side of the sealed cabinet 5. The upper end of the lower bus bar 32 is connected with an insulating member 34, wherein the insulating member 34 is disposed at the left side of the lower stationary contact 31, and the insulating member 34 is mounted at one side of the sealed cabinet 5.
In the embodiment, the grounding device of the isolating circuit breaker comprises an isolating shaft 22, an operating mechanism 23 and three-phase solid-sealed polar poles 21, wherein the three-phase solid-sealed polar poles 21 are arranged in the sealed cabinet 5, and the three-phase solid-sealed polar poles 21 are respectively arranged on the isolating shaft 22. The two ends of the isolating shaft 22 are rotatably connected with the sealed cabinet body 5, wherein one end of the isolating shaft 22 penetrates out of the sealed cabinet body 5 and is connected with the operating mechanism 23, the isolating shaft 22 is driven to rotate through the operating mechanism 23, and the three-phase solid-sealed polar pole 21 is driven to rotate by the rotation of the isolating shaft 22. The operating mechanism 23 is connected with the outer surface of the sealed cabinet body 5 in a sealing way, so that the operating mechanism 23 and the sealed cabinet body 5 form a whole.
In this embodiment, the three-phase solid sealed pole 21 is respectively matched with the three-phase bus bar assembly, wherein each phase solid sealed pole 21 is located between the upper fixed contact 13 and the lower fixed contact 31 of each phase bus bar assembly, and two ends of each phase solid sealed pole 21 are respectively used for contacting with the upper fixed contact 13 and the lower fixed contact 31 of each phase bus bar assembly. When the switching device is not in operation, the isolating breaker grounding device is in a breaking state, and the three-phase solid-sealed pole 21 is in a horizontal position. When the grounding device of the isolating circuit breaker is required to be turned from a switching-off state to a switching-on state, the isolating shaft 22 is driven to rotate clockwise through the operating mechanism 23, and the three-phase solid-sealed pole 21 is driven to rotate clockwise by 90 degrees to a vertical position by the rotation of the isolating shaft 22, so that two ends of each phase of solid-sealed pole 21 are respectively contacted with the upper fixed contact 13 and the lower fixed contact 31 in each phase of bus assembly, and the upper fixed contact 13 and the lower fixed contact 31 are communicated. When the grounding device of the isolating circuit breaker is required to be changed from a closing state to a separating state, the isolating shaft 22 is driven to rotate clockwise through the operating mechanism 23, and the three-phase solid-sealed pole 21 is driven to rotate anticlockwise by 90 degrees to a horizontal position by the rotation of the isolating shaft 22, so that two ends of each phase of solid-sealed pole 21 are separated from the upper fixed contact 13 and the lower fixed contact 31 in each phase of bus assembly respectively.
Referring to fig. 1 or 2, in the present embodiment, a ground switching device is further included, wherein the ground switching device is disposed on the right side of the lower stationary contact 31. The grounding switch device comprises three grounding switch 41, a grounding shaft 42 and a grounding operation mechanism, wherein the grounding operation mechanism is connected with the outer surface of the sealed cabinet body 5 in a sealing way. The grounding shaft 42 is rotatably connected to the sealed cabinet 5, wherein one end of the grounding shaft 42 penetrates out of the sealed cabinet 5 and is connected to the grounding operation mechanism, and the grounding shaft 42 is driven to rotate by the grounding operation mechanism. One end of the three grounding switch 41 is mounted on the grounding shaft 42, and the other ends of the three grounding switch 41 are respectively used for being connected with the upper ends of the lower buses 32 of the three-phase bus assembly in a matching manner. Specifically, when the switchgear does not work, the grounding device of the isolation breaker is in a breaking state, the three-phase solid-sealed pole 21 is in a horizontal position, and at this time, the grounding shaft 42 is rotated 90 degrees anticlockwise through the grounding operation mechanism, so that the grounding shaft 42 drives the three grounding knife switches 41 to rotate anticlockwise to the upper ends of the lower buses 32 respectively contacting the three-phase bus assembly, the grounding is realized, and the high voltage is disconnected safely. When the grounding device of the isolating circuit breaker needs to be turned from the opening state to the closing state, the grounding shaft 42 can be rotated clockwise by 90 degrees through the grounding operation mechanism, the grounding shaft 42 drives the three grounding knife switches 41 to rotate anticlockwise so as to be separated from the upper ends of the lower buses 32 of the three-phase bus assemblies respectively, and then the rotation of the isolating shaft 22 drives the three-phase solid-sealed pole 21 to rotate clockwise by 90 degrees to a vertical position, so that the two ends of each phase of solid-sealed pole 21 are respectively contacted with the upper ends of the upper fixed contact 13 and the lower buses 32 in each phase of bus assemblies. Through the structure, the grounding switch device is not shared with the main loop and is mutually independent from the grounding device of the isolating breaker, so that functions and operations are not mutually influenced, and the grounding reliability is not influenced by the operation of the loop.
In the present embodiment, through the above-described structure, the upper bus bar 12, the upper stationary contact 13, the solid-sealed pole 21, the lower stationary contact 31, and the lower bus bar 32 are arranged from top to bottom, and through installing the two bus bar expansion bushings 11 on the left and right sides of the sealed cabinet 5, respectively, and through arranging the insulating element 34 and the grounding switch device on the left and right sides of the lower stationary contact 31, respectively, the structure is compact and reasonable, which is beneficial to realizing miniaturization of the switchgear. In addition, through with two bus-expanding sleeve 11, go up bus 12, go up static contact 13, lower bus 32, lower static contact 31, outlet terminal 33, earthing switch device and isolation circuit breaker earthing device totally enclosed in sealed cabinet body 5, outside dust, high humidity, harmful substance such as salt fog are isolated outside, increased switchgear's resistant environment for switchgear suits better and raises sand, high temperature, high humidity, salt fog, the requirement in the big special region of early and late difference in temperature, reduces external environment to switchgear's adverse effect.
In this embodiment, through the above-mentioned structure for when isolation circuit breaker earthing device is in the brake-off state, upper bus 12, isolation circuit breaker earthing device and lower bus 32 do not have insulating material to connect each other, do not have the risk of alternate insulation inefficacy short circuit, realize improving switchgear's safety in utilization under the compact structure's the prerequisite of guaranteeing.
In this embodiment, the distance between the three-phase solid-sealed polar poles 21, the distance between the three grounding knife switches 41 and the distance between the bus assemblies of each phase are all larger than 125m, insulation is realized by increasing the distance, and the insulation medium between charged conductors is air, so that additional insulation treatments such as composite insulation, solid insulation, vulcanization and the like are not needed, and no insulation damage risk is generated.
The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art, using the disclosure above, may make many more possible variations and modifications of the technical solution of the present utility model, or make many more modifications of the equivalent embodiments of the present utility model without departing from the scope of the technical solution of the present utility model. Therefore, all equivalent changes made according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.
Claims (5)
1. The utility model provides a indulge sealed air insulation switchgear of revolve normal pressure, is including sealed cabinet body (5) and three-phase busbar subassembly, its characterized in that: the three-phase bus assembly is arranged in the sealed cabinet body (5); each phase of bus assembly comprises two bus expansion sleeves (11), an upper bus (12), an upper fixed contact (13), a lower bus (32), a lower fixed contact (31) and an outgoing terminal (33), wherein the two bus expansion sleeves (11) are respectively arranged at two sides of a sealed cabinet body (5), and the two bus expansion sleeves (11) are connected through the upper bus (12); the upper fixed contact (13) is arranged at the bottom of the upper bus (12); the lower fixed contact (31) and the wire outlet terminal (33) are respectively connected to the upper end and the lower end of the lower bus bar (32), and the wire outlet terminal (33) is arranged on one side of the sealed cabinet body (5); the three-phase solid-sealed pole (21) is arranged on the isolating shaft, the isolating shaft (22) is rotationally connected to the sealed cabinet body (5), and the isolating shaft (22) is driven to rotate through the operating mechanism (23); the three-phase solid-sealed polar pole (21) is matched with the three-phase bus assembly respectively, wherein two ends of each phase of solid-sealed polar pole (21) are used for being contacted with an upper fixed contact (13) and a lower fixed contact (31) of each phase of bus assembly respectively.
2. A longitudinally-oriented atmospheric pressure sealed air-insulated switchgear as claimed in claim 1, wherein: the operating mechanism (23) is connected with the outer surface of the sealed cabinet body (5) in a sealing way.
3. A longitudinally-oriented atmospheric pressure sealed air-insulated switchgear as claimed in claim 1, wherein: the distance between the bus bar assemblies of each phase is more than 125m.
4. A longitudinally-oriented atmospheric pressure sealed air-insulated switchgear as claimed in claim 1, wherein: in each phase of the busbar assembly, an insulating element (34) is connected to the upper end of the lower busbar (32), and the insulating element (34) is mounted on one side of the sealed cabinet (5).
5. A longitudinally-oriented atmospheric pressure sealed air-insulated switchgear as claimed in claim 1, wherein: the grounding switch device comprises three grounding disconnecting links (41) and a grounding shaft (42), wherein the grounding shaft (42) is rotatably connected to the sealed cabinet body (5), and one ends of the three grounding disconnecting links (41) are arranged on the grounding shaft (42); the three grounding knife switches (41) are respectively used for being matched and connected with the lower fixed contact (31) of the three-phase bus assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320622376.0U CN219350963U (en) | 2023-03-27 | 2023-03-27 | Vertical rotation normal pressure sealing air insulation switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320622376.0U CN219350963U (en) | 2023-03-27 | 2023-03-27 | Vertical rotation normal pressure sealing air insulation switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219350963U true CN219350963U (en) | 2023-07-14 |
Family
ID=87077639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320622376.0U Active CN219350963U (en) | 2023-03-27 | 2023-03-27 | Vertical rotation normal pressure sealing air insulation switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219350963U (en) |
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2023
- 2023-03-27 CN CN202320622376.0U patent/CN219350963U/en active Active
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