CN114284099A - Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on - Google Patents
Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on Download PDFInfo
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- CN114284099A CN114284099A CN202111336203.4A CN202111336203A CN114284099A CN 114284099 A CN114284099 A CN 114284099A CN 202111336203 A CN202111336203 A CN 202111336203A CN 114284099 A CN114284099 A CN 114284099A
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an upper isolation five-station switch for an environment-friendly gas insulation ring main unit, which comprises a three-station upper isolation switch device and a two-station breaker switch device which are connected with each other; the three-station upper isolating switch device is positioned above the two-station circuit breaker switch device; the gas box is filled with environment-friendly gas N2Carrying out insulation; the isolation upper static contact is arranged on the main bus bar, and the main bus bar is connected with the female header and is fixedly arranged on the inner wall of the gas tank; the outer end of a movable conducting rod of the vacuum arc extinguish chamber is connected with a copper rod through flexible connection, and the copper rod penetrates out of the gas box through a cable outlet sleeve in a sealing mode. When the upper isolating switch is at the switching-on position, the upper isolating moving contact is connected with the isolating upper static contact, and the main busbar is connected with the bus connection seatConnecting; when the circuit breaker switch is closed, the movable conducting rod and the static conducting rod in the vacuum arc extinguish chamber are closed, and accordingly, the whole loop is conducted.
Description
Technical Field
The invention belongs to the technical field of an environment-friendly gas ring main unit in power distribution equipment, and relates to a metal-enclosed switchgear filled with environment-friendly gas N2The used switch, in particular to an upper isolation five-station switch for an environment-friendly gas insulation ring main unit.
Background
Environmental protection gas N2The excellent environmental adaptability, high reliability, high safety, maintenance-free performance and the like of the metal enclosed switchgear make the wide application of the metal enclosed switchgear an irreversible trend. Considering carbon emission tax that may occur in the future, no/little SF6Gas metal enclosed switchgear may be more economical and therefore, no/little SF6The scale production of the gas switch equipment can not only improve the economical efficiency of the equipment, but also bring excellent performance stability and light structure of the product equipment. However N is not limited2Has an insulating property of only SF6About one third of gas, therefore, the five-station isolating switch can show the body greatly under the conditions of ensuring that the cabinet body is not increased in overall dimension, safe and reliable and almost unchanged in space utilization rate.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides an upper isolation five-station switch for an environment-friendly gas insulation ring main unit.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an upper isolation five-station switch for an environment-friendly gas insulation ring main unit comprises a three-station upper isolation switch device and a two-station breaker switch device which are connected with each other; the three-station upper isolating switch device is positioned above the two-station circuit breaker switch device;
the three-station upper isolating switch device comprises an upper isolating switch main shaft, an upper isolating switch main crank arm, an upper isolating switch connecting crank arm, an upper isolating moving contact connecting piece, an upper isolating lower static contact and a grounding static contact; isolating the upper static contact;
the two-station circuit breaker switching device comprises a circuit breaker switch main shaft, a circuit breaker switch linkage shaft connecting lever, a double-end screw, a stainless steel threaded pipe, a flexible connection and a vacuum arc extinguish chamber;
the upper isolating switch main shaft is movably arranged on the upper isolating switch frame, three upper isolating switch main connecting levers are respectively arranged on the upper isolating switch main shaft according to the A, B, C three-phase distance, the upper isolating switch connecting lever is connected with the corresponding upper isolating switch main connecting lever, and the upper isolating moving contact is connected with the corresponding upper isolating switch connecting lever through an upper isolating moving contact connecting piece; the upper isolation lower static contact is correspondingly connected with the upper isolation moving contact; the upper isolating moving contact is driven to rotate by the rotation of the upper isolating switch main shaft and the transmission of the upper isolating switch main connecting lever and the upper isolating switch connecting lever, so that the upper isolating moving contact and the isolating upper static contact are disconnected or connected to realize the isolating position and the closing position of the upper isolating switch, or the upper isolating moving contact and the grounding static contact are connected to realize the grounding position;
the circuit breaker switch main shaft is movably arranged on a circuit breaker switch frame, three circuit breaker switch linkage shaft connecting levers are respectively arranged on the circuit breaker switch main shaft according to the distance of A, B, C three phases, one end of a double-headed screw rod is connected to the circuit breaker switch linkage shaft connecting levers, the double-headed screw rod penetrates through a stainless steel threaded pipe, the other end of the double-headed screw rod is connected to the lower end of a vacuum arc extinguish chamber and a flexible connection, the outer end of a static conducting rod of the vacuum arc extinguish chamber is connected with an upper isolation lower static contact (11), and the outer end of a movable conducting rod of the vacuum arc extinguish chamber is connected with the flexible connection; the power of the breaker switch mechanism is transmitted to the breaker switch device through the breaker switch main shaft to realize the opening and closing actions.
In some embodiments, the three-position upper disconnecting switch device further comprises an upper disconnecting switch frame front plate, an upper disconnecting switch beam, an upper disconnecting switch frame rear plate, a five-position switch insulating side plate and a grounding static contact mounting plate;
one side of the front plate of the upper isolating switch frame and one side of the rear plate of the upper isolating switch frame are fixedly connected through an upper isolating switch beam, the other side of the upper part of the front plate of the upper isolating switch frame and the other side of the rear plate of the upper isolating switch frame are fixedly connected through a grounding fixed contact mounting plate, and two sides of the lower part of the front plate of the upper isolating switch frame and two sides of the lower part of the rear plate of the upper isolating switch frame are respectively and fixedly connected with a five-station switch insulating side plate; forming an upper isolator frame;
holes for installing an upper isolating switch main shaft are formed in corresponding positions on the upper isolating switch frame front plate and the upper isolating switch frame rear plate, and two ends of the upper isolating switch main shaft are movably installed in the holes in the upper isolating switch frame front plate and the upper isolating switch frame rear plate respectively; and the grounding fixed contact is arranged on the mounting plate of the grounding fixed contact.
Furthermore, the five-station switch insulation side plate reinforcing plate is horizontally connected and installed on the upper end faces of the two five-station switch insulation side plates. The upper isolation lower static contact is installed on the insulation side plate reinforcing plate.
In some embodiments, the upper isolation five-station switch for the environmentally-friendly gas-insulated ring main unit further includes a ground bar, the ground fixed contacts are electrically connected to the ground bar, and the three ground fixed contacts are fixedly mounted on the ground fixed contact mounting plate through the ground bar.
In some embodiments, the two-position circuit breaker switching device further comprises a circuit breaker switch frame front support plate, a circuit breaker switch frame rear support plate, and a vacuum interrupter guide plate;
the front supporting plate of the breaker switch frame and the rear supporting plate of the breaker switch frame are vertically connected to two five-station switch insulating side plates to form the breaker switch frame; holes for installing a breaker switch spindle are formed in corresponding positions on the front supporting plate of the breaker switch frame and the rear supporting plate of the breaker switch frame, and two ends of the breaker switch spindle are movably installed in the holes in the front supporting plate of the breaker switch frame and the rear supporting plate of the breaker switch frame respectively;
the vacuum interrupter deflector level sets up two five station switch insulation curb plates of the left and right sides that are fixed to last isolator frame, set up the mounting hole that is used for installing the vacuum interrupter on the vacuum interrupter deflector, the vacuum interrupter is installed on the vacuum interrupter deflector.
Furthermore, the circuit breaker switch frame beam is connected with the front supporting plate of the circuit breaker switch frame and the rear supporting plate of the circuit breaker switch frame.
In some embodiments, the upper isolation five-station switch for the environmentally-friendly gas insulated ring main unit further comprises an upper isolation moving contact uniform cover, the upper isolation moving contact uniform cover is arranged on the upper isolation moving contact, and the upper isolation moving contact uniform cover is helpful for forming a uniform electric field and reducing partial discharge.
The second aspect provides an environment-friendly gas insulation ring main unit, including the gas tank with environment-friendly gas insulation ring main unit with keep apart five station switches, it establishes N to fill in the gas tank2And (6) performing insulation.
Preferably, the upper isolating switch frame and the breaker switch frame are mainly made of carbon steel materials, and the five-station switch insulating side plate is made of insulating plastics which are processed by a special process and have obviously enhanced strength.
Preferably, the upper isolating switch main connecting lever and the upper isolating switch connecting lever can convert the transmission angle of the isolating upper fixed contact, the isolating moving contact and the grounding fixed contact from 104 degrees to 52 degrees, and the isolating moving contact forms an included angle of 104 degrees between the switching-on position and the grounding position.
In some embodiments, the environment-friendly gas-insulated ring main unit further includes a main bus bar, a female coupling seat, a copper bar, and a cable outlet sleeve;
the isolation upper static contact is arranged on the main busbar, and the main busbar is connected with the female header and fixedly arranged on the inner wall of the gas tank;
the outer end of a movable conducting rod of the vacuum arc extinguish chamber is connected with a copper rod through flexible connection, and the copper rod penetrates out of the gas box through a cable outlet sleeve in a sealing mode.
Has the advantages that: the upper isolation five-station switch for the environment-friendly gas insulation ring main unit provided by the invention has the following advantages: the isolating switch is arranged at the upper part, the circuit breaker is arranged at the lower part, the structure is compact, the overall dimension is not increased, the safety and the reliability are high, the space utilization rate is high, and the environment-friendly gas N is enabled to be2Replacement of SF6The gas can be realized, and the safety and the reliability of the equipment can be guaranteed under the condition that the overall dimension of the ring main unit is not increased, so that the use requirement of the switch is met. In addition, the invention can enrich the product types of companies and improve the competitiveness of the environment-friendly gas ring main unit products of the companies in the market.
Drawings
FIG. 1 is a schematic diagram of an isolation bit state structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an isolation bit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a closing position according to an embodiment of the present invention;
FIG. 4 is a schematic representation of a second embodiment of the present invention;
fig. 5 is a schematic structural view of the state of being loaded into the gas tank in the embodiment of the invention.
In the figure: the five-station switch isolation device comprises an upper isolation switch frame front plate 1, an upper isolation switch cross beam 2, an upper isolation switch frame rear plate 3, a five-station switch insulation side plate 4, an upper isolation switch main shaft 5, an upper isolation switch main crank arm 6, an upper isolation switch connecting crank arm 7, an upper isolation moving contact 8, an upper isolation moving contact uniform cover 9, an upper isolation moving contact connecting piece 10, an upper isolation lower fixed contact 11, an insulation side plate reinforcing plate 12, a grounding fixed contact mounting plate 13, a grounding bar 14 and a grounding fixed contact 15; the device comprises a front support plate 16 of a breaker switch frame, a rear support plate 17 of the breaker switch frame, a cross beam 18 of the breaker switch frame, a main shaft 19 of the breaker switch, a connecting lever 20 of a breaker switch linkage shaft, a double-headed screw 21, a stainless steel threaded pipe 22, a flexible connection 23, a vacuum arc-extinguishing chamber 24, a guide plate 25 of the vacuum arc-extinguishing chamber, a main busbar 26, an upper isolation static contact 27, a female coupling seat 28, a copper bar 29, a cable outlet sleeve 30 and an air box 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may also include different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Example 1
As shown in fig. 1, 2 and 5, an upper isolation five-position switch for an environment-friendly gas insulation ring main unit comprises a three-position upper isolation switch device and a two-position breaker switch device which are connected with each other; the three-station upper isolating switch device is positioned above the two-station circuit breaker switch device;
the three-station upper isolating switch device comprises an upper isolating switch main shaft 5, an upper isolating switch main crank arm 6, an upper isolating switch connecting crank arm 7, an upper isolating moving contact 8, an upper isolating moving contact connecting piece 10, an upper isolating lower static contact 11 and a grounding static contact 15; isolating the upper stationary contact 27;
the two-station circuit breaker switching device comprises a circuit breaker switch main shaft 19, a circuit breaker switch linkage shaft connecting lever 20, a double-end screw 21, a stainless steel threaded pipe 22, a flexible connection 23 and a vacuum arc-extinguishing chamber 24;
the upper isolating switch main shaft 5 is movably arranged on the upper isolating switch frame, three upper isolating switch main connecting levers 6 are respectively arranged on the upper isolating switch main shaft 5 according to the A, B, C three-phase distance, the upper isolating switch connecting lever 7 is connected with the corresponding upper isolating switch main connecting lever 6, and the upper isolating moving contact 8 is connected with the corresponding upper isolating switch connecting lever 7 through an upper isolating moving contact connecting piece 10; the upper isolation lower static contact 11 is correspondingly connected with the upper isolation moving contact 8; the upper isolating moving contact 8 is driven to rotate by the rotation of the upper isolating switch main shaft 5 and the transmission of the upper isolating switch main connecting lever 6 and the upper isolating switch connecting lever 7, so that the upper isolating moving contact 8 and the isolating upper static contact 27 are disconnected or connected to realize an isolating position and a switching-on position of the upper isolating switch, or the upper isolating moving contact 8 and the grounding static contact 15 are connected to realize a grounding position;
the circuit breaker switch main shaft 19 is movably mounted on a circuit breaker switch frame, three circuit breaker switch linkage shaft connecting levers 20 are respectively arranged on the circuit breaker switch main shaft 19 according to the distance of A, B, C three phases, one end of a double-headed screw 21 is connected to the circuit breaker switch linkage shaft connecting lever 20, the double-headed screw 21 penetrates through a stainless steel threaded pipe 22, the other end of the double-headed screw 21 is connected to the lower end of a vacuum arc-extinguishing chamber 24 and a flexible connection 23, the outer end of a static conducting rod of the vacuum arc-extinguishing chamber 24 is connected with an upper isolation lower static contact (11), and the outer end of a dynamic conducting rod of the vacuum arc-extinguishing chamber 24 is connected with the flexible connection 23; the power of the breaker switch mechanism is transmitted to the breaker switch device through the breaker switch main shaft 19 to realize the opening and closing actions.
In some embodiments, as shown in fig. 1 and fig. 2, the three-position upper disconnecting switch device further includes an upper disconnecting switch frame front plate 1, an upper disconnecting switch beam 2, an upper disconnecting switch frame rear plate 3, a five-position switch insulating side plate 4, and a grounding stationary contact mounting plate 13;
one sides of the upper isolation switch frame front plate 1 and the upper isolation switch frame rear plate 3 are fixedly connected through an upper isolation switch cross beam 2, the other side of the upper part of the upper isolation switch frame front plate is fixedly connected through a grounding static contact mounting plate 13, and two sides of the lower part of the upper isolation switch frame front plate 1 and the upper isolation switch frame rear plate 3 are respectively fixedly connected with a five-station switch insulation side plate 4; forming an upper isolator frame;
holes for installing an upper isolating switch main shaft 5 are formed in corresponding positions on the upper isolating switch frame front plate 1 and the upper isolating switch frame rear plate 3, and two ends of the upper isolating switch main shaft 5 are movably installed in the holes in the upper isolating switch frame front plate 1 and the upper isolating switch frame rear plate 3 respectively; and the grounding fixed contact 15 is arranged on the grounding fixed contact mounting plate 13.
Further, in some embodiments, as shown in fig. 1 and fig. 2, the switch insulating side plate further comprises an insulating side plate reinforcing plate 12, and the insulating side plate reinforcing plate 12 is horizontally connected and installed on the upper end faces of the two five-position switch insulating side plates 4. The upper isolated lower static contact 11 is mounted on the insulating side plate reinforcing plate 12. Three insulating curb plate reinforcing plate 12 sets up to five station switch insulating curb plate 4 above, insulating curb plate reinforcing plate 12 has the effect in two aspects: the strength and the stability of the insulating side plate 4 of the five-station switch are enhanced, and the upper isolation lower static contact 11 corresponding to three phases is fixed.
In some embodiments, as shown in fig. 1 and fig. 2, the grounding strip 14 is further included, the grounding fixed contact 15 is electrically connected to the grounding strip 14, and the three grounding fixed contacts 15 are fixedly mounted on the grounding fixed contact mounting plate 13 through the grounding strip 14.
In some embodiments, as shown in fig. 1 and 2, the two-position circuit breaker switching device further comprises a circuit breaker switch frame front support plate 16, a circuit breaker switch frame rear support plate 17, and a vacuum interrupter guide plate 25;
the front support plate 16 and the rear support plate 17 of the breaker switch frame are vertically connected to the two five-station switch insulation side plates 4 to form the breaker switch frame; holes for installing a breaker switch spindle 19 are formed in corresponding positions of the front support plate 16 of the breaker switch frame and the rear support plate 17 of the breaker switch frame, and two ends of the breaker switch spindle 19 are movably installed in the holes in the front support plate 16 of the breaker switch frame and the rear support plate 17 of the breaker switch frame respectively;
the vacuum interrupter guide plate 25 level sets up two five station switch insulation curb plates 4 about fixed last isolator frame, set up the mounting hole that is used for installing vacuum interrupter 24 on the vacuum interrupter guide plate 25, vacuum interrupter 24 installs on vacuum interrupter guide plate 25.
Further, in some embodiments, as shown in fig. 1 and 2, a breaker switch frame beam 18 is further included, and the breaker switch frame beam 18 connects the breaker switch frame front support plate 16 and the breaker switch frame rear support plate 17. The breaker switch frame fixing and reinforcing device has the advantages that the breaker switch frame fixing and reinforcing effect is achieved, and the three parts form a complete breaker switch frame main body.
In some embodiments, as shown in fig. 1 and 2, the isolating moving contact uniform cover 9 is further included, the isolating moving contact uniform cover 9 is disposed on the isolating moving contact 8, and the isolating moving contact uniform cover 9 helps to form a uniform electric field and reduce partial discharge.
Preferably, the upper isolating switch frame and the breaker switch frame are mainly made of carbon steel materials, and the five-station switch insulating side plate is made of insulating plastics which are processed by a special process and have obviously enhanced strength.
Preferably, the upper isolating switch main connecting lever and the upper isolating switch connecting lever can convert the transmission angle of the isolating upper fixed contact, the isolating moving contact and the grounding fixed contact from 104 degrees to 52 degrees, and the isolating moving contact forms an included angle of 104 degrees between the switching-on position and the grounding position.
FIG. 2 is a schematic diagram of an isolation bit according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a closing position according to an embodiment of the present invention; FIG. 4 is a schematic diagram of the second embodiment of the present invention.
Example 2
As shown in fig. 5, an environment-friendly gas-insulated ring main unit comprises an air tank 31 and the above-mentioned upper isolation five-position switch for the environment-friendly gas-insulated ring main unit, wherein N is filled in the air tank 312And (6) performing insulation.
In some embodiments, as shown in fig. 1, 2 and 5, the bus bar further includes a main bus bar 26, a female header 28, a copper bar 29, a cable outlet sleeve 30,
the upper isolated static contact 27 is arranged on a main busbar 26, and the main busbar 26 is connected with a main header 28 and fixedly arranged on the inner wall of the gas tank;
the outer end of the movable conducting rod of the vacuum arc extinguish chamber 24 is connected with a copper rod 29 through a flexible connection 23, and the copper rod 29 penetrates out of the gas box through a cable outgoing sleeve 30 in a sealing mode.
When the upper isolating switch is at the switching-on position, the upper isolating moving contact 8 is connected with the isolating upper static contact 27, and the main busbar 26 is connected with the busbar seat 28; when the circuit breaker switch is closed, the movable conducting rod and the static conducting rod inside the vacuum arc extinguish chamber 24 are closed, and therefore the whole loop is conducted.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the claimed invention.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. An upper isolation five-station switch for an environment-friendly gas insulation ring main unit is characterized by comprising a three-station upper isolation switch device and a two-station breaker switch device which are connected with each other; the three-station upper isolating switch device is positioned above the two-station circuit breaker switch device;
the three-station upper isolating switch device comprises an upper isolating switch main shaft (5), an upper isolating switch main connecting lever (6), an upper isolating switch connecting lever (7), an upper isolating moving contact (8), an upper isolating moving contact connecting piece (10), an upper isolating lower static contact (11) and a grounding static contact (15); an isolated upper stationary contact (27);
the two-station circuit breaker switching device comprises a circuit breaker switch main shaft (19), a circuit breaker switch linkage shaft connecting lever (20), a double-end screw (21), a stainless steel threaded pipe (22), a flexible connection (23) and a vacuum arc-extinguishing chamber (24);
the upper isolating switch main shaft (5) is movably mounted on the upper isolating switch frame, three upper isolating switch main crank arms (6) are respectively arranged on the upper isolating switch main shaft (5) according to the A, B, C three-phase distance, an upper isolating switch connecting crank arm (7) is connected with the corresponding upper isolating switch main crank arm (6), and an upper isolating moving contact (8) is connected with the corresponding upper isolating switch connecting crank arm (7) through an upper isolating moving contact connecting piece (10); the upper isolation lower static contact (11) is correspondingly connected with the upper isolation moving contact (8); the upper isolating moving contact (8) is driven to rotate by the rotation of the upper isolating switch main shaft (5) and the transmission of the upper isolating switch main crank arm (6) and the upper isolating switch connecting crank arm (7), so that the upper isolating moving contact (8) and the isolating upper static contact (27) are disconnected or connected to realize the isolation position and the closing position of the upper isolating switch, or the upper isolating moving contact (8) and the grounding static contact (15) are connected to realize the connection position;
the circuit breaker switch main shaft (19) is movably mounted on a circuit breaker switch frame, three circuit breaker switch linkage shaft connecting levers (20) are respectively arranged on the circuit breaker switch main shaft (19) according to A, B, C three-phase intervals, one end of a double-end screw (21) is connected to the circuit breaker switch linkage shaft connecting levers (20), the double-end screw (21) penetrates through a stainless steel threaded pipe (22), the other end of the double-end screw (21) is connected to the lower end of a vacuum arc extinguish chamber (24) and a flexible connection (23), the outer end of a static conducting rod of the vacuum arc extinguish chamber (24) is connected with an upper isolation lower static contact (11), and the outer end of a dynamic conducting rod of the vacuum arc extinguish chamber (24) is connected with the flexible connection (23); the power of the breaker switch mechanism is transmitted to the breaker switch device through a breaker switch main shaft (19) to realize the opening and closing actions.
2. The upper isolation five-station switch for the environment-friendly gas insulation ring main unit according to claim 1, wherein the three-station upper isolation switch device further comprises an upper isolation switch frame front plate (1), an upper isolation switch cross beam (2), an upper isolation switch frame rear plate (3), a five-station switch insulation side plate (4) and a grounding static contact mounting plate (13);
one side of an upper isolation switch frame front plate (1) and one side of an upper isolation switch frame rear plate (3) are fixedly connected through an upper isolation switch cross beam (2), the other side of the upper part of the upper isolation switch frame front plate is fixedly connected through a grounding fixed contact mounting plate (13), and two sides of the lower part of the upper isolation switch frame front plate (1) and two sides of the lower part of the upper isolation switch frame rear plate (3) are respectively and fixedly connected with a five-station switch insulation side plate (4); forming an upper isolator frame;
holes for installing an upper isolating switch main shaft (5) are formed in corresponding positions on the upper isolating switch frame front plate (1) and the upper isolating switch frame rear plate (3), and two ends of the upper isolating switch main shaft (5) are movably installed in the holes in the upper isolating switch frame front plate (1) and the upper isolating switch frame rear plate (3) respectively; and the grounding fixed contact (15) is arranged on the grounding fixed contact mounting plate (13).
3. The environment-friendly gas-insulated ring main unit used upper isolation five-position switch according to claim 2, further comprising an insulated side plate reinforcing plate (12), wherein the insulated side plate reinforcing plate (12) is horizontally connected and installed on the upper end surfaces of the two insulated side plates (4) of the five-position switch.
4. The upper isolation five-station switch for the environmentally friendly gas insulated ring main unit according to claim 3, wherein the upper isolation lower fixed contact (11) is installed on the insulating side plate reinforcing plate (12).
5. The five-station switch for the upper isolation of the environmentally-friendly gas insulated ring main unit according to claim 2, further comprising a grounding bar (14), wherein the grounding fixed contact (15) is electrically connected with the grounding bar (14), and the three grounding fixed contacts (15) are fixedly mounted on the mounting plate (13) of the grounding fixed contact through the grounding bar (14).
6. The upper isolation five-position switch for the environmentally friendly gas insulated ring main unit according to claim 2, wherein the two-position circuit breaker switching device further comprises a circuit breaker switch frame front support plate (16), a circuit breaker switch frame rear support plate (17), and a vacuum arc extinguish chamber guide plate (25);
a front support plate (16) of a breaker switch frame and a rear support plate (17) of the breaker switch frame are vertically connected to two five-station switch insulation side plates (4) to form the breaker switch frame; holes for installing a breaker switch main shaft (19) are formed in corresponding positions of the front supporting plate (16) of the breaker switch frame and the rear supporting plate (17) of the breaker switch frame, and two ends of the breaker switch main shaft (19) are movably installed in the holes in the front supporting plate (16) of the breaker switch frame and the rear supporting plate (17) of the breaker switch frame respectively;
vacuum interrupter deflector (25) level sets up two five station switch insulation side plates (4) of the left and right sides that are fixed to last isolator frame, set up the mounting hole that is used for installing vacuum interrupter (24) on vacuum interrupter deflector (25), vacuum interrupter (24) are installed on vacuum interrupter deflector (25).
7. The five-position switch for upper isolation of environmental protection gas insulation ring main unit according to claim 6, further comprising a breaker switch frame beam (18), wherein the breaker switch frame beam (18) connects the breaker switch frame front support plate (16) and the breaker switch frame rear support plate (17).
8. The upper isolation five-station switch for the environmentally-friendly gas insulation ring main unit according to claim 1, further comprising an upper isolation moving contact uniform cover (9), wherein the upper isolation moving contact uniform cover (9) is arranged on the upper isolation moving contact (8).
9. An environment-friendly gas-insulated ring main unit, which is characterized by comprising an air box (31) and the upper-isolation five-station switch for the environment-friendly gas-insulated ring main unit as claimed in any one of claims 1 to 8, wherein N is filled in the air box (31)2And (6) performing insulation.
10. The environmental protection gas insulation ring main unit according to claim 1, further comprising a main bus bar (26), a bus coupling seat (28), a copper bar (29), and a cable outlet sleeve (30),
the isolation upper static contact (27) is arranged on a main busbar (26), and the main busbar (26) is connected with a main header (28) and fixedly arranged on the inner wall of the gas tank;
the outer end of a movable conducting rod of the vacuum arc extinguish chamber (24) is connected with a copper bar (29) through a flexible connection (23), and the copper bar (29) penetrates out of the gas box in a sealing mode through a cable outgoing line sleeve (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336203.4A CN114284099A (en) | 2021-11-12 | 2021-11-12 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111336203.4A CN114284099A (en) | 2021-11-12 | 2021-11-12 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
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| CN114284099A true CN114284099A (en) | 2022-04-05 |
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| CN202111336203.4A Pending CN114284099A (en) | 2021-11-12 | 2021-11-12 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
| CN109637883A (en) * | 2018-11-19 | 2019-04-16 | 珠海许继电气有限公司 | A kind of switching device |
| CN112382526A (en) * | 2020-10-22 | 2021-02-19 | 北京龙源开关设备有限责任公司 | Three station isolator integration circuit breakers on environment-friendly |
-
2021
- 2021-11-12 CN CN202111336203.4A patent/CN114284099A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
| CN109637883A (en) * | 2018-11-19 | 2019-04-16 | 珠海许继电气有限公司 | A kind of switching device |
| CN112382526A (en) * | 2020-10-22 | 2021-02-19 | 北京龙源开关设备有限责任公司 | Three station isolator integration circuit breakers on environment-friendly |
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