CN118137365A - Sulfur hexafluoride insulation metal closed switch equipment - Google Patents
Sulfur hexafluoride insulation metal closed switch equipment Download PDFInfo
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- CN118137365A CN118137365A CN202410571436.XA CN202410571436A CN118137365A CN 118137365 A CN118137365 A CN 118137365A CN 202410571436 A CN202410571436 A CN 202410571436A CN 118137365 A CN118137365 A CN 118137365A
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- sulfur hexafluoride
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 38
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000004880 explosion Methods 0.000 claims 2
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract description 2
- 238000010292 electrical insulation Methods 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004141 dimensional analysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to the field of power distribution equipment and discloses sulfur hexafluoride insulation metal closed switch equipment, which comprises a shell, wherein the sulfur hexafluoride insulation metal closed switch equipment comprises a secondary small chamber, a mechanism chamber, a cable chamber and an air box, the secondary small chamber is arranged on the left side of the shell, the secondary small chamber comprises a protection device, the mechanism chamber is arranged on the left side of the shell, the mechanism chamber is positioned below the secondary small chamber, a circuit breaker operating mechanism and an isolation operating mechanism are arranged in the mechanism chamber, a side-expansion bus connector is arranged in the shell, the side-expansion bus connector is positioned on the left side of the secondary small chamber, and the side-expansion bus connector comprises a sleeve, a pressure release channel and a cabinet door. According to the invention, by changing the shape of the conductor, adding measures such as a equalizing ring, a equalizing cover and the like, the ground and phase-to-phase distance of the SF6 gas is controlled to be lower on the premise of ensuring the electrical insulation performance of the SF6 gas, the overall size of the switch is made smaller, and the space requirement environment is more easily met.
Description
Technical Field
The invention relates to the field of power distribution equipment, in particular to sulfur hexafluoride insulation metal closed switch equipment.
Background
The sulfur hexafluoride insulating metal closed switch cabinet is a medium-voltage distribution highest-voltage-class product, miniaturized and drawn-out products appear from the late 90 th century, and advanced circuit breaker matched switch cabinets such as 405W-VACW of Eton Western houses and Mei Lanri blue CEI circuit breakers are introduced in the early days. The products have small size and high reliability, but the voltage class can not meet the requirements of national standard 40.5kV (power frequency withstand voltage 95kV and lightning impulse 185 kV) according to foreign 36kV (power frequency withstand voltage 70kV and lightning impulse 170 kV), and the measures of reinforcing insulation and the like are barely achieved. The design of the switch cabinet is more changed on the basis of 12kV, for example, the contact box is only increased in size and the climbing distance is increased, electric field analysis and actual use verification are not carried out, the insulation problem of the products occurs after one or two years of use, and the problem is solved by replacing the contact box and even replacing a mounting plate of the contact box from metal to an insulation plate. With the appearance of ABB ZS3.2, manufacturers design in a manner, look like cats and tigers, a large number of products are generated, and the products are greatly generated due to low cost and low matching, so that the problems of the products are more and more increased.
As mentioned above, sulfur hexafluoride insulated metal enclosed switchgear cabinets cannot be modified solely on a 12kV basis, but rather should be redesigned to maximize the optimization of the electric field by the primary circuit within the switch, such as the circuit breaker drive. The insulator should carry out electric field analysis, uses measures such as voltage-sharing shielding ring, and the like, based on correct modeling and parameter setting, the electric field intensity is optimized to the greatest extent, the product electric field analysis should adopt three-dimensional analysis, and local optimization is avoided, and the electric field is excessively concentrated in the system, for example, the insulation thickness and the corresponding air gap ratio in the respective places are smaller than 1/4, and the air field intensity is excessively large and easy to break down due to no corresponding shielding measures. For the creepage distance, the creepage distance position is optimized, and the creepage distance number is reduced under the condition that environmental conditions allow.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides sulfur hexafluoride insulation metal-enclosed switchgear.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the sulfur hexafluoride insulating metal closed switch equipment comprises a shell, and consists of a secondary small chamber, a mechanism chamber, a cable chamber and an air box;
a secondary small chamber is arranged on the left side of the shell, and the secondary small chamber comprises a protection device;
A mechanism chamber is arranged on the left side of the shell, and is positioned below the secondary small chamber, and the mechanism chamber comprises a breaker operating mechanism and an isolation operating mechanism;
a side expansion bus connector is arranged in the shell and is positioned at the left side of the secondary cell, and the side expansion bus connector comprises a sleeve, a pressure relief channel and a cabinet door;
The inside of the shell is provided with an air box which is positioned below the side-spread bus connector, and the side-spread bus connector, the breaker switch and the three-station isolating switch are arranged in the air box;
The vacuum arc-extinguishing chamber is arranged in the shell and is positioned below the side-spread bus connector; the vacuum arc extinguishing chamber is characterized in that a precompression stroke bubble is arranged below the vacuum arc extinguishing chamber, a flange linear bearing is arranged below the precompression stroke bubble, a guide rod is arranged below the flange linear bearing, a transmission connecting rod is arranged at the front end of the precompression stroke bubble, a spline shaft is arranged at the right end of the transmission connecting rod, a pressure equalizing cover is arranged inside the shell, and the pressure equalizing cover is positioned below the side expansion bus connector;
An isolation fixed contact is arranged in the shell and is positioned below the pressure equalizing cover, an arc crank arm is arranged below the isolation fixed contact, a main shaft crank arm is arranged below the arc crank arm, an isolation knife is arranged on the left side of the arc crank arm, and a grounding contact is arranged below the isolation knife;
the isolating operation mechanism is internally provided with a brake separating spring, and the top end of the brake separating spring is provided with a brake separating spring crank arm.
As a further description of the above technical solution:
The front side of the pressure equalizing cover is provided with a knife bottom plate, the front end of the knife bottom plate is provided with a knife shell, the front end of the knife bottom plate is rotatably provided with a closing mechanism, the interior of the knife bottom plate is provided with a rotating mechanism, and the lower part of the rotating mechanism is provided with a separating and closing mechanism;
the rotating mechanism comprises a sliding cylinder, the outer side of the sliding cylinder is slidably arranged in a bottom plate of the brake blade, a sliding curved surface block is fixedly arranged in the sliding cylinder, a rotating rod is slidably arranged in the sliding cylinder, a thread groove is formed in the outer side of the rotating rod, a connecting rod is fixedly arranged on the right side of the rotating rod, a connecting disc is fixedly arranged on the right side of the connecting rod, a deflection rod is fixedly arranged on the right side of the connecting disc, a sliding rod is rotatably arranged on the outer side of the deflection rod, and a sliding plate is rotatably arranged on the outer side of the sliding rod;
the left end of the sliding plate is provided with a chute, a long rod is slidably arranged in the chute, and a touch tool holder seat is arranged at the fixed left end of the long rod.
As a further description of the above technical solution:
A limiting mechanism is arranged in the sliding cylinder;
The limiting mechanism comprises a limiting cylinder, the limiting cylinder is fixedly arranged in the left end of the sliding cylinder, a spring is fixedly arranged in the limiting cylinder, and an inclined plane rod is fixedly arranged at the left end of the spring.
As a further description of the above technical solution:
the closing mechanism comprises a first blade, the right side of the first blade is rotatably arranged on the left side of a knife bottom plate, the left end of the first blade is slidably provided with a second blade, the outer side of the second blade is provided with a sliding groove, and the left end of the second blade is provided with an insulating rod.
As a further description of the above technical solution:
The outer side of the sliding curved surface block is slidably arranged on the thread groove.
As a further description of the above technical solution:
The right end slidable mounting of touch the cutter holder seat is at the left end of plug-in strip bottom plate, touch the cutter holder seat and be located the below of slide cylinder.
As a further description of the above technical solution:
the outside of the inclined plane rod is slidingly installed in the limiting cylinder.
As a further description of the above technical solution:
The right-hand member slidable mounting of sliding plate is in the inside of plug-in strip bottom plate, the sliding plate is located the below of slide cylinder.
The invention has the following beneficial effects:
1. According to the invention, by changing the shape of the conductor, adding measures such as a equalizing ring, a equalizing cover and the like, the ground and phase-to-phase distance of the SF6 gas is controlled to be lower on the premise of ensuring the electrical insulation performance of the SF6 gas, the overall size of the switch is made smaller, and the space requirement environment is more easily met.
2. According to the invention, the sliding cylinder moves to drive the thread groove to rotate, and the thread groove drives the deflection rod, the sliding rod and the sliding plate to move, so that the touch tool holder seat drives the touch tool holder seat to separate and close, friction force between the touch tool holder seat and the first blade is reduced, damage to parts is greatly reduced, and cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the internal structure of a mechanism chamber of sulfur hexafluoride insulation metal enclosed switchgear;
Fig. 2 is a perspective view of sulfur hexafluoride insulation metal enclosed switchgear according to the present invention;
fig. 3 is an exploded view of a sulfur hexafluoride insulated metal enclosed switchgear in accordance with the invention;
fig. 4 is a schematic diagram showing a voltage equalizing cover of sulfur hexafluoride insulation metal enclosed switchgear according to the invention;
Fig. 5 is a right side view of a pressure equalizing cover of the sulfur hexafluoride insulation metal enclosed switchgear provided by the invention;
FIG. 6 is an illustration showing a breaking lever of sulfur hexafluoride insulation metal enclosed switchgear according to the present invention;
Fig. 7 is an exhibition view of an arc crank arm of the sulfur hexafluoride insulation metal enclosed switchgear provided by the invention;
fig. 8 is an illustration showing a knife switch housing of sulfur hexafluoride insulation metal enclosed switchgear in accordance with the invention;
FIG. 9 is an illustration of a blade bottom plate of a sulfur hexafluoride insulated metal-enclosed switchgear in accordance with the invention;
FIG. 10 is a cross-sectional view of a blade bottom plate of a sulfur hexafluoride insulated metal-enclosed switchgear in accordance with the invention;
FIG. 11 is a diagram showing a rotating mechanism of a sulfur hexafluoride insulation metal enclosed switchgear according to the present invention;
Fig. 12 is a rear view of a rotating mechanism of the sulfur hexafluoride insulation metal enclosed switchgear according to the invention;
FIG. 13 is a cross-sectional view of a sliding cylinder of a sulfur hexafluoride insulated metal-enclosed switchgear according to the present invention;
Fig. 14 is a schematic diagram of the internal structure of a limiting cylinder of the sulfur hexafluoride insulation metal enclosed switchgear provided by the invention;
fig. 15 is a schematic view showing a closing mechanism of the sulfur hexafluoride insulation metal enclosed switchgear according to the present invention.
Legend description:
a01, a secondary cell; a02, a mechanism chamber; a03, a breaker operating mechanism; a04, isolating an operating mechanism; a05, a cable chamber; a06, a side expansion bus connector; a07 a breaker switch; a08, three-station isolating switch; a09, an air box; a10, a shell; b01, a vacuum arc extinguishing chamber; b02, precompression stroke bubble; b03, a flange linear bearing; b04, a guide rod; b05, a transmission connecting rod; b06, a spline shaft; b07, equalizing cover; c01, isolating the static contact; c02, arc crank arm; c03, a main shaft crank arm; c04, a ground contact; c05, isolating the knife; d01, a brake separating spring crank arm; d02, a brake separating spring; e01, a knife bottom plate; e02, a knife switch shell; e03, a closing mechanism; e31, blade I; e32, a second blade; e33, a sliding groove; e34, insulating rods; e04, a rotating mechanism; e41, a sliding cylinder; e42, sliding curved surface block; e43, thread grooves; e44, rotating the rod; e45, connecting rods; e46, connecting discs; e47, deflection lever; e48, a sliding rod; e49, sliding plate; e05, a separating and combining mechanism; e51, a chute; e52, long rod; e53, touching the tool holder seat; e06, a limiting mechanism; e61, a limiting cylinder; e62, springs; e63, inclined plane pole.
Detailed Description
Referring to fig. 1-15, one embodiment provided by the present invention is: the sulfur hexafluoride insulation metal closed switch equipment comprises a shell A10, and consists of four parts, namely a secondary small chamber A01, a mechanism chamber A02, a cable chamber A05 and an air box A09;
the left side of the shell A10 is provided with a secondary small chamber A01, and the secondary small chamber A01 comprises a protection device;
A mechanism chamber A02 is arranged on the left side of the shell A10, the mechanism chamber A02 is positioned below the secondary small chamber A01, and the mechanism chamber A02 comprises a breaker operating mechanism A03 and an isolation operating mechanism A04;
a side expansion bus connector A06 is arranged in the shell A10, the side expansion bus connector A06 is positioned at the left side of the secondary cell A01, and the side expansion bus connector A06 comprises a sleeve, a pressure release channel and a cabinet door;
The inside of the shell A10 is provided with an air box A09, the air box A09 is positioned below the side-spread bus connector A06, and the side-spread bus connector A06, the breaker switch A07 and the three-station isolating switch A08 are arranged in the air box A09;
The vacuum arc-extinguishing chamber B01 is arranged in the shell A10, and the vacuum arc-extinguishing chamber B01 is positioned below the side-spread bus connector A06; the lower part of the vacuum arc-extinguishing chamber B01 is provided with a precompression stroke bubble B02, the lower part of the precompression stroke bubble B02 is provided with a flange linear bearing B03, the lower part of the flange linear bearing B03 is provided with a guide rod B04, the front end of the precompression stroke bubble B02 is provided with a transmission connecting rod B05, as shown in figures 4-5, the vacuum arc-extinguishing chamber B01 is transmitted through a main shaft crank arm C03, the total switching-on and switching-off stroke can reach 24mm at most, more adjustment space is provided for switch debugging, and the efficiency of mass production of the switch is improved; the guide part adopts a flange linear bearing B03 mode, so that the friction force received during the switch action is reduced to be beneficial to improving the output force efficiency of a mechanism, the right end of the transmission connecting rod B05 is provided with a spline shaft B06, the inside of the shell A10 is provided with a pressure equalizing cover B07, and the pressure equalizing cover B07 is positioned below the side-spread bus connector A06, as shown in fig. 4, a large amount of electric field homogenization treatment is adopted, so that the whole size of the switch is smaller under the premise of ensuring the electric insulation performance of SF6 gas, and the environment with high space requirement is more easily met;
An isolation fixed contact C01 is arranged in the shell A10, the isolation fixed contact C01 is positioned below the pressure equalizing cover B07, an arc crank arm C02 is arranged below the isolation fixed contact C01, a main shaft crank arm C03 is arranged below the arc crank arm C02, an isolation knife C05 is arranged on the left side of the arc crank arm C02, and a grounding contact C04 is arranged below the isolation knife C05;
The isolating operation mechanism A04 is internally provided with a brake separating spring D02, the top end of the brake separating spring D02 is provided with a brake separating spring crank arm D01, as shown in fig. 6, when the mechanism is operated for separating brake, a pin slides to the left side from the right side, so that a breaker switch A07 generates larger force when separating brake, a vacuum arc-extinguishing chamber B01 can be separated more reliably, the breaker operation mechanism A03 is switched on, the force output by the mechanism of an isolating static contact C01 is transferred to the arc crank arm C02 for switching and sealing, and then a spline shaft B06 is driven to rotate clockwise, a transmission connecting rod B05 rotates along with the spline shaft B06 to drive a guide rod B04, so that the moving end of the vacuum arc-extinguishing chamber B01 acts vertically upwards, and switching on is completed; the breaker operating mechanism A03 is opened, the spline shaft B06 rotates anticlockwise through the same transmission as the closing, the transmission connecting rod B05 rotates along with the spline shaft B06 to drive the guide rod B04, and the movable end of the vacuum arc-extinguishing chamber B01 moves vertically downwards, so that the opening is completed.
Further explaining, a knife bottom plate E01 is arranged on the front side of the pressure equalizing cover B07, a knife shell E02 is arranged at the front end of the knife bottom plate E01, a closing mechanism E03 is rotatably arranged at the front end of the knife bottom plate E01, a rotating mechanism E04 is arranged in the knife bottom plate E01, and a separating and combining mechanism E05 is arranged below the rotating mechanism E04;
The rotating mechanism E04 comprises a sliding cylinder E41, wherein the outer side of the sliding cylinder E41 is slidably arranged in a knife bottom plate E01, a sliding curved surface block E42 is fixedly arranged in the sliding cylinder E41, a rotating rod E44 is slidably arranged in the sliding cylinder E41, a thread groove E43 is formed in the outer side of the rotating rod E44, a connecting rod E45 is fixedly arranged on the right side of the rotating rod E44, a connecting disc E46 is fixedly arranged on the right side of the connecting rod E45, a deflection rod E47 is fixedly arranged on the right side of the connecting disc E46, a sliding rod E48 is rotatably arranged on the outer side of the deflection rod E47, and a sliding plate E49 is rotatably arranged on the outer side of the sliding rod E48;
The left end of the sliding plate E49 is provided with a chute E51, a long rod E52 is slidably arranged in the chute E51, a touch tool holder seat E53 is arranged at the fixed left end of the long rod E52, and a limiting mechanism E06 is arranged in the sliding cylinder E41;
The limiting mechanism E06 comprises a limiting cylinder E61, the limiting cylinder E61 is fixedly arranged inside the left end of the sliding cylinder E41, a spring E62 is fixedly arranged inside the limiting cylinder E61, an inclined plane rod E63 is fixedly arranged at the left end of the spring E62, the closing mechanism E03 comprises a first blade E31, the right side of the first blade E31 is rotatably arranged on the left side of a brake blade bottom plate E01, a second blade E32 is slidably arranged at the left end of the first blade E31, a sliding groove E33 is formed in the outer side of the second blade E32, an insulating rod E34 is arranged at the left end of the second blade E32, the outer side of a sliding curved surface block E42 is slidably arranged on a threaded groove E43, the right end of a touch tool holder seat E53 is slidably arranged at the left end of the brake blade bottom plate E01, the touch tool holder seat E53 is positioned below the sliding cylinder E41, the outer side of the inclined plane rod E63 is slidably arranged inside the limiting cylinder E61, the right end of the sliding plate E49 is slidably arranged inside the brake blade bottom plate E01, and the sliding plate E49 is positioned below the sliding cylinder E41.
Working principle: the breaker operating mechanism A03 is switched on, the isolating static contact C01 outputs force, the force is transferred to the arc crank arm C02 to switch and seal through the conversion of the adjustable connecting rod of the main shaft crank arm C03, the spline shaft B06 is driven to rotate clockwise, the transmission connecting rod B05 follows the spline shaft B06 to rotate, the guide rod B04 is driven, and the movable end of the vacuum arc extinguishing chamber B01 moves vertically upwards, so that switching on is completed; the breaker operating mechanism A03 is opened, the spline shaft B06 rotates anticlockwise through the same transmission as the closing, the transmission connecting rod B05 rotates along with the spline shaft B06 to drive the guide rod B04, the movable end of the vacuum arc-extinguishing chamber B01 moves vertically downwards, the opening is completed, the three-station isolating switch A08 mechanism drives the movable contact assembly integrated with the rotating shaft to rotate clockwise through driving the main shaft crank arm C03 to rotate clockwise, the three-station isolating switch A08 contacts with the isolating fixed contact C01 when the movable contact assembly rotates to the position I, the three-station isolating switch A08 closes, after the breaker is opened, the three-station isolating switch A08 mechanism drives the main shaft crank arm C03 to rotate anticlockwise, when the three-station disconnecting switch A08 rotates to the position II, the disconnecting switch A08 is disconnected, so far, the disconnecting of the ring main unit is completed, and in the disconnecting process, the movable end of the vacuum arc-extinguishing chamber B01 pulled by the insulating rotating shaft is in linear transmission, so that the loss in the moment conversion process and the action delay generated by clearance fit are avoided, the quick disconnecting is realized, the three-station disconnecting switch A08 is in a disconnecting state, the shutdown mechanism of the three-station disconnecting switch A08 drives the main shaft crank arm C03 to rotate anticlockwise, drives the moving contact component integrated with the rotating shaft to rotate anticlockwise, and rotates to the position III and the grounding contact C04 seat, when the ring main unit is grounded and closed, the closing mechanism E03 is rotated, the closing mechanism E03 is contacted with the sliding cylinder E41 and embedded into a groove of the sliding cylinder E41, the inclined surface rod E63 is extruded, when the first blade E31 is embedded into the sliding cylinder E41 for a certain distance, the inclined surface rod E63 is driven to be clamped into the sliding groove E33 under the action of the elastic force of the spring E62, so that the first blade E31 is limited, then the first blade E31 drives the sliding cylinder E41 to move right, in the process of moving the sliding cylinder E41 to move right, the sliding cylinder E41 drives the sliding curved surface block E42 in the sliding cylinder E41 to move right, and the sliding curved surface block E42 moves right, the sliding rod E44 is driven to rotate by sliding on a thread groove E43 on the outer side of the rotating rod E44, the rotating rod E44 drives a connecting rod E45 and a connecting disc E46 to rotate, the connecting disc E46 drives a deflection rod E47 to rotate, the deflection rod E47 is fixed at a position far away from the center of the connecting disc E46, so that the sliding rod E48 and a sliding plate E49 are driven to move upwards by the deflection rod E47, a long rod E52 is driven to slide in a chute E51 by the sliding plate E49, the long rod E52 is enabled to approach inwards, a tool touching holder E53 is driven to approach inwards by the long rod E52 and contact a first blade E31, and when the tool is unfolded, the first blade E31 is rotated, the sliding cylinder E41 is driven to reset through the first blade E31, after the sliding cylinder E41 resets, the cutter-touching holder seat E53 moves outwards, after the sliding cylinder E41 resets, the insulating rod E34 is pushed, the second blade E32 is driven to slide into the first blade E31 through the insulating rod E34, at the moment, the inclined plane rod E63 is not contacted with the second blade E32 any more through the fracture on the other side of the sliding groove E33, and then the limit of the closing mechanism E03 is contacted, in sum, the cutter-touching holder seat E53 moves, so that the friction force between the cutter-touching holder seat E53 and the first blade E31 is reduced, the damage of parts is greatly reduced, and the cost is further reduced.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. Sulfur hexafluoride insulation metal enclosed switchgear, including a housing (a 10), characterized in that: consists of four parts of a secondary small chamber (A01), a mechanism chamber (A02), a cable chamber (A05) and an air box (A09);
The left side of the shell (A10) is provided with a secondary small chamber (A01), and the secondary small chamber (A01) comprises a protection device;
a mechanism chamber (A02) is arranged on the left side of the shell (A10), the mechanism chamber (A02) is positioned below the secondary small chamber (A01), and the mechanism chamber (A02) comprises a breaker operating mechanism (A03) and an isolation operating mechanism (A04);
a side expansion bus connector (A06) is arranged in the shell (A10), the side expansion bus connector (A06) is positioned on the left side of the secondary small chamber (A01), and the side expansion bus connector (A06) comprises a sleeve, a pressure relief channel and a cabinet door;
An air box (A09) is arranged in the shell (A10), the air box (A09) is positioned below the side bus-expanding connector (A06), and the side bus-expanding connector (A06), the breaker switch (A07) and the three-station isolating switch (A08) are arranged in the air box (A09);
A vacuum arc-extinguishing chamber (B01) is arranged in the shell (A10), and the vacuum arc-extinguishing chamber (B01) is positioned below the side-spread bus connector (A06); the vacuum explosion chamber is characterized in that a precompression stroke bubble (B02) is arranged below the vacuum explosion chamber (B01), a flange linear bearing (B03) is arranged below the precompression stroke bubble (B02), a guide rod (B04) is arranged below the flange linear bearing (B03), a transmission connecting rod (B05) is arranged at the front end of the precompression stroke bubble (B02), a spline shaft (B06) is arranged at the right end of the transmission connecting rod (B05), a pressure equalizing cover (B07) is arranged inside the shell (A10), and the pressure equalizing cover (B07) is arranged below the side expansion bus connector (A06);
An isolation fixed contact (C01) is arranged in the shell (A10), the isolation fixed contact (C01) is positioned below the pressure equalizing cover (B07), an arc crank arm (C02) is arranged below the isolation fixed contact (C01), a main shaft crank arm (C03) is arranged below the arc crank arm (C02), an isolation knife (C05) is arranged on the left side of the arc crank arm (C02), and a grounding contact (C04) is arranged below the isolation knife (C05);
The isolating operation mechanism (A04) is internally provided with a brake separating spring (D02), and the top end of the brake separating spring (D02) is provided with a brake separating spring crank arm (D01).
2. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 1 wherein: a knife bottom plate (E01) is arranged at the front side of the pressure equalizing cover (B07), a knife shell (E02) is arranged at the front end of the knife bottom plate (E01), a closing mechanism (E03) is rotatably arranged at the front end of the knife bottom plate (E01), a rotating mechanism (E04) is arranged in the knife bottom plate (E01), and a separating and combining mechanism (E05) is arranged below the rotating mechanism (E04);
The rotary mechanism (E04) comprises a sliding cylinder (E41), the outer side of the sliding cylinder (E41) is slidably mounted in a knife bottom plate (E01), a sliding curved surface block (E42) is fixedly mounted in the sliding cylinder (E41), a rotary rod (E44) is slidably mounted in the sliding cylinder (E41), a thread groove (E43) is formed in the outer side of the rotary rod (E44), a connecting rod (E45) is fixedly mounted on the right side of the rotary rod (E44), a connecting disc (E46) is fixedly mounted on the right side of the connecting rod (E45), a deflection rod (E47) is fixedly mounted on the right side of the connecting disc (E46), a sliding rod (E48) is rotatably mounted on the outer side of the deflection rod (E47), and a sliding plate (E49) is rotatably mounted on the outer side of the sliding rod (E48);
The left end of the sliding plate (E49) is provided with a chute (E51), a long rod (E52) is slidably arranged in the chute (E51), and a touch tool holder seat (E53) is arranged at the fixed left end of the long rod (E52).
3. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 2 wherein: a limiting mechanism (E06) is arranged in the sliding cylinder (E41);
The limiting mechanism (E06) comprises a limiting cylinder (E61), the limiting cylinder (E61) is fixedly arranged in the left end of the sliding cylinder (E41), a spring (E62) is fixedly arranged in the limiting cylinder (E61), and an inclined plane rod (E63) is fixedly arranged at the left end of the spring (E62).
4. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 2 wherein: the closing mechanism (E03) comprises a first blade (E31), the right side of the first blade (E31) is rotatably arranged on the left side of a knife bottom plate (E01), a second blade (E32) is slidably arranged at the left end of the first blade (E31), a sliding groove (E33) is formed in the outer side of the second blade (E32), and insulating rods (E34) are arranged at the left ends of the two second blades (E32).
5. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 2 wherein: the outer side of the sliding curved surface block (E42) is slidingly installed on the thread groove (E43).
6. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 2 wherein: the right end of the touch tool holder seat (E53) is slidably arranged at the left end of the knife bottom plate (E01), and the touch tool holder seat (E53) is positioned below the sliding cylinder (E41).
7. A sulfur hexafluoride insulated metal-enclosed switchgear as claimed in claim 3, wherein: the outer side of the inclined surface rod (E63) is slidably arranged in the limiting cylinder (E61).
8. The sulfur hexafluoride insulated metal-enclosed switchgear of claim 2 wherein: the right end of the sliding plate (E49) is slidably mounted inside the knife bottom plate (E01), and the sliding plate (E49) is positioned below the sliding cylinder (E41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410571436.XA CN118137365A (en) | 2024-05-10 | 2024-05-10 | Sulfur hexafluoride insulation metal closed switch equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410571436.XA CN118137365A (en) | 2024-05-10 | 2024-05-10 | Sulfur hexafluoride insulation metal closed switch equipment |
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| CN202410571436.XA Pending CN118137365A (en) | 2024-05-10 | 2024-05-10 | Sulfur hexafluoride insulation metal closed switch equipment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011222457A (en) * | 2010-04-14 | 2011-11-04 | Toshiba Corp | Gas insulated switchgear |
| CN109193399A (en) * | 2018-10-15 | 2019-01-11 | 武胜县烈面镇小学 | A kind of isolator |
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2024
- 2024-05-10 CN CN202410571436.XA patent/CN118137365A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011222457A (en) * | 2010-04-14 | 2011-11-04 | Toshiba Corp | Gas insulated switchgear |
| CN109193399A (en) * | 2018-10-15 | 2019-01-11 | 武胜县烈面镇小学 | A kind of isolator |
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