CN213691870U - Lifting ZW8-12 type outdoor column high-voltage alternating-current vacuum circuit breaker - Google Patents
Lifting ZW8-12 type outdoor column high-voltage alternating-current vacuum circuit breaker Download PDFInfo
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- CN213691870U CN213691870U CN202021552819.6U CN202021552819U CN213691870U CN 213691870 U CN213691870 U CN 213691870U CN 202021552819 U CN202021552819 U CN 202021552819U CN 213691870 U CN213691870 U CN 213691870U
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Abstract
The utility model provides a promote outdoor post of ZW8-12 type and go up high-pressure AC vacuum circuit breaker. The lifting ZW8-12 type outdoor pole-mounted high-voltage alternating current vacuum circuit breaker comprises a box body; three insulating covers; three sleeve pipe sets; a stationary end support; an insulating rod; a vacuum arc-extinguishing chamber; a guide plate; a pull rod; the spring sleeve is arranged on the pull rod; a spring mounted within the spring housing; an insulating pad mounted between the spring and the spring housing; an end cap; a retraction spring; a connecting rod; an insulating pull rod; a crank arm; a moving end bracket; a guide sleeve; a conductive clip. The utility model provides a promote outdoor post of ZW8-12 type on high-pressure AC vacuum circuit breaker have the high advantage of stability.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a promote outdoor post of ZW8-12 type and go up high-pressure alternating current vacuum circuit breaker.
Background
The ZW8-12 type outdoor pole-mounted high-voltage alternating-current vacuum circuit breaker is suitable for outdoor high-voltage switch equipment with rated voltage of 12kV, rated current of 630A and rated short-circuit current of 20kA, and is mainly used in rural power grid power distribution systems as open-close load current, overload current and short-circuit current. The air composite insulation vacuum circuit breaker is an optimized product for replacing an oil insulation vacuum circuit breaker and realizing oil-free air composite insulation.
The ZW8-12 type outdoor pole-mounted high-voltage alternating-current vacuum circuit breaker is of a common-box structure, and when a product type test is carried out according to GB1984-2014, arc extinguishing chamber adhesion accidents are easily caused in a dynamic thermal stability test and a rated short circuit breaking test, so that the type test fails. Through a plurality of times of test summaries, the pressure spring (serial number 11 in fig. 3) of the arc extinguish chamber of the circuit breaker loses the pressure on the contact of the arc extinguish chamber in the electrifying process to cause the adhesion of the arc extinguish chamber, and the principle analysis of the phenomenon is as follows: in a normal closing state, the spring 11 applies a pressure to the contact 2400N of the vacuum interrupter 7 through compression of the spring housing 10. However, when the vacuum arc extinguishing chamber is electrified, the spring 11 passes through 20kA of short-circuit current, each layer of steel ring of the spring 11 generates a magnetic field in the same direction through the current, and the magnetic field in the same direction causes each layer of steel ring of the spring 11 to attract each other, so that the pressure of the spring 11 on the contact of the vacuum arc extinguishing chamber 7 is reduced, the pressure value of the contact required by the arc extinguishing chamber 7 cannot be reached, and the arc extinguishing chamber is often adhered in the test process.
Therefore, it is necessary to provide a new lifting type ZW8-12 outdoor post high voltage AC vacuum circuit breaker to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a high outdoor post of promotion ZW8-12 type high pressure alternating current vacuum circuit breaker of stability.
In order to solve the technical problem, the utility model provides a promote outdoor post of ZW8-12 type and go up high-pressure AC vacuum circuit breaker includes:
a box body;
the three insulation covers are arranged on the box body;
the three sleeve pipe groups are installed in the insulating cover and comprise a first sleeve pipe and a second sleeve pipe;
a stationary end bracket mounted on a bottom side of the first sleeve;
two insulating rods are mounted on one side of the static end support;
the vacuum arc-extinguishing chamber is arranged on the static end bracket and is positioned between the two insulating rods;
the guide plate is arranged between the two insulation rods;
the pull rod is arranged on the guide plate;
the spring sleeve is arranged on the pull rod;
a spring mounted within the spring housing;
an insulating pad mounted between the spring and the spring housing;
the end cover is arranged in the box body;
a retraction spring mounted within the end cap;
a connecting rod installed at one side of the contraction spring;
the insulating pull rod is arranged on the connecting rod;
the crank arm is arranged at the bottom end of the insulating pull rod;
the movable end bracket is arranged at the bottom end of the second sleeve;
the guide sleeve is arranged on the movable end support and is matched with the pull rod;
the conductive clamp is installed on the movable end support, and one end of the conductive clamp is connected with the pull rod.
Preferably, an operating mechanism is installed at one side of the box body.
Preferably, an insulating plate assembly is installed between two adjacent sleeve groups, and the insulating plate assembly is used for separating the two adjacent sleeve groups.
Preferably, the insulating plate assembly comprises a mounting seat, a mounting groove is formed in the top side of the mounting seat, an insulating plate is mounted in the mounting groove, and the top side of the insulating plate extends out of the mounting groove.
Preferably, the insulating plate has a top height greater than a top height of the sleeve group.
Preferably, a groove is formed in the inner walls of the two sides of the mounting groove, a clamping block is slidably mounted in the groove, a buffer groove is formed in the clamping block, a piston is slidably and hermetically mounted in the buffer groove, a fixed rod is fixedly mounted on one side of the piston, one end of the fixed rod extends to the outside of the buffer groove and is fixedly connected with the inner wall of one side of the groove, a spring is sleeved on the fixed rod, one end of the spring is fixedly connected with the inner wall of the groove, the other end of the spring is fixedly connected with the clamping block, clamping grooves are formed in the two sides of the insulating plate, and the clamping grooves are clamped with the clamping block.
Preferably, the inner walls of the top side and the bottom side of the groove are both provided with a limiting groove, the top side and the bottom side of the fixture block are both fixedly provided with limiting blocks, and the limiting blocks are in interactive connection with the limiting grooves.
Compared with the prior art, the utility model provides a promote outdoor post of ZW8-12 type and go up high-pressure AC vacuum circuit breaker has following beneficial effect:
the utility model provides a promote high-pressure alternating current vacuum circuit breaker on outdoor post of ZW8-12 type, through increase insulating pad between spring and spring housing, its material is the thick epoxy glass cloth board of 1.5mm, is used for isolated spring and spring housing, and when the combined floodgate circular telegram, the spring does not have the electric current to pass through, has guaranteed vacuum interrupter's contact pressure, has improved high-pressure alternating current vacuum circuit breaker's on the outdoor post heavy current stability to the performance of product has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a lifting type ZW8-12 outdoor column high-voltage ac vacuum circuit breaker according to the present invention;
FIG. 2 is a side cross-sectional structural view of the device shown in FIG. 1;
FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2;
fig. 4 is a schematic structural diagram of a second embodiment of the lifting type ZW8-12 outdoor column high-voltage ac vacuum circuit breaker according to the present invention;
FIG. 5 is an enlarged schematic view of portion B shown in FIG. 4;
reference numbers in the figures: 1. the device comprises a box body, 2, an insulating cover, 3, a sleeve pipe set, 301, a first sleeve pipe, 302, a second sleeve pipe, 4, an operating mechanism, 5, an insulating rod, 6, a static end support, 7, a vacuum arc extinguish chamber, 8, a guide plate, 9, a pull rod, 10, a spring sleeve, 11, a spring, 12, an insulating pad, 13, an end cover, 14, a shrinkage spring, 15, a connecting rod, 16, an insulating pull rod, 17, a crank arm, 18, a movable end support, 19, a guide sleeve, 20, a conductive clamp, 21, a mounting seat, 22, a mounting groove, 23, an insulating plate, 24, a groove, 25, a clamping block, 26, a buffer groove, 27, a piston, 28, a fixing rod, 29, a spring, 30, a clamping groove, 31, a limiting groove, 32 and a limiting block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
The first embodiment:
referring to fig. 1-3, in a first embodiment of the present invention, a lifting type outdoor column high voltage ac vacuum circuit breaker of ZW8-12 comprises: a box body 1;
three insulating covers 2, wherein the three insulating covers 2 are arranged on the box body 1;
three sets of bushings 3, said sets of bushings 3 being mounted inside said insulating housing 2, said sets of bushings 3 comprising a first bushing 301 and a second bushing 302;
a stationary end bracket 6, said stationary end bracket 6 being mounted on the bottom side of said first casing 301;
two insulating rods 5 are mounted on one side of the static end support 6;
the vacuum arc-extinguishing chamber 7 is installed on the static end support 6, and the vacuum arc-extinguishing chamber 7 is located between the two insulating rods 5;
the guide plate 8 is installed between the two insulation rods 5, and the guide plate 8 is installed between the two insulation rods 5;
the pull rod 9 is installed on the guide plate 8;
the spring sleeve 10 is installed on the pull rod 9;
a spring 11, wherein the spring 11 is installed in the spring sleeve 10;
an insulating pad 12, wherein the insulating pad 12 is installed between the spring 11 and the spring housing 1;
an end cover 13, wherein the end cover 13 is installed in the box body 1;
a retraction spring 14, said retraction spring 14 mounted within said end cap 13;
a connecting rod 15, the connecting rod 15 being installed at one side of the contraction spring 14;
the insulating pull rod 16 is installed on the connecting rod 15;
the crank arm 17 is installed at the bottom end of the insulating pull rod 16;
a moving end bracket 18, the moving end bracket 18 being mounted at the bottom end of the second sleeve 302;
the guide sleeve 19 is installed on the movable end support 18, and the guide sleeve 19 is matched with the pull rod 9;
and the conductive clamp 20 is installed on the movable end support 18, and one end of the conductive clamp 20 is connected with the pull rod 9.
An operating mechanism 4 is installed on one side of the box body 1.
Compared with the prior art, the utility model provides a promote outdoor post of ZW8-12 type and go up high-pressure AC vacuum circuit breaker has following beneficial effect:
the utility model provides a promote high-pressure alternating current vacuum circuit breaker on outdoor post of ZW8-12 type, through increase insulating pad 12 between spring 11 and spring housing 10, its material is the thick epoxy glass cloth board of 1.5mm, be used for isolated spring 11 and spring housing 10, when the circular telegram of combined floodgate, spring 11 does not have the electric current to pass through, guaranteed vacuum interrupter 7's contact pressure, the high current stability of high-pressure alternating current vacuum circuit breaker on the outdoor post has been improved, thereby the performance of product has been improved.
Second embodiment:
based on the lifting type ZW8-12 outdoor column high-voltage alternating-current vacuum circuit breaker provided by the first embodiment of the application, the second embodiment of the application provides another lifting type ZW8-12 outdoor column high-voltage alternating-current vacuum circuit breaker. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 4-5, the present embodiment is different from the first embodiment in that an insulation plate assembly is installed between two adjacent sleeve assemblies 3, and the insulation plate assembly is used for separating two adjacent sleeve assemblies 3.
The insulating plate assembly comprises an installation seat 21, wherein an installation groove 22 is formed in the top side of the installation seat 21, an insulating plate 23 is installed in the installation groove 22, and the top side of the insulating plate 23 extends out of the installation groove 22.
The insulating plate 23 has a top height greater than the top height of the thimble groups 3.
The insulation board is characterized in that grooves 24 are formed in inner walls of two sides of the mounting groove 22, a clamping block 25 is arranged in the grooves 24 in a sliding mode, a buffer groove 26 is formed in the clamping block 25, a piston 27 is arranged in the buffer groove 26 in a sliding and sealing mode, a fixing rod 28 is fixedly arranged on one side of the piston 27, one end of the fixing rod 28 extends out of the buffer groove 26 and is fixedly connected with the inner wall of one side of the grooves 24, a spring 29 is sleeved on the fixing rod 28, one end of the spring 29 is fixedly connected with the inner wall of the grooves 24, the other end of the spring 29 is fixedly connected with the clamping block 25, clamping grooves 30 are formed in two sides of the insulation board, and the clamping grooves 30 are.
Limiting grooves 31 are formed in the inner walls of the top side and the bottom side of the groove 24, limiting blocks 32 are fixedly mounted on the top side and the bottom side of each clamping block 25, and the limiting blocks 32 are in interactive connection with the limiting grooves 31.
Through setting up the insulation board subassembly, prevent to produce the vacuum circuit breaker that interphase discharge and lead to and burn out the accident.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. A lifting type ZW8-12 outdoor pole-mounted high voltage AC vacuum circuit breaker, comprising:
a box body;
the three insulation covers are arranged on the box body;
the three sleeve pipe groups are installed in the insulating cover and comprise a first sleeve pipe and a second sleeve pipe;
a stationary end bracket mounted on a bottom side of the first sleeve;
two insulating rods are mounted on one side of the static end support;
the vacuum arc-extinguishing chamber is arranged on the static end bracket and is positioned between the two insulating rods;
the guide plate is arranged between the two insulation rods;
the pull rod is arranged on the guide plate;
the spring sleeve is arranged on the pull rod;
a spring mounted within the spring housing;
an insulating pad mounted between the spring and the spring housing;
the end cover is arranged in the box body;
a retraction spring mounted within the end cap;
a connecting rod installed at one side of the contraction spring;
the insulating pull rod is arranged on the connecting rod;
the crank arm is arranged at the bottom end of the insulating pull rod;
the movable end bracket is arranged at the bottom end of the second sleeve;
the guide sleeve is arranged on the movable end support and is matched with the pull rod;
the conductive clamp is installed on the movable end support, and one end of the conductive clamp is connected with the pull rod.
2. The outdoor column high voltage ac vacuum circuit breaker of lifting type ZW8-12 of claim 1, wherein an operating mechanism is mounted to one side of the case.
3. The outdoor column high voltage ac vacuum circuit breaker of lifting type ZW8-12 according to claim 1, wherein an insulating plate assembly is installed between two adjacent bushing sets, and the insulating plate assembly is used for separating two adjacent bushing sets.
4. The elevated ZW8-12 type outdoor column high voltage AC vacuum circuit breaker according to claim 3, wherein the insulation board assembly comprises a mounting base, a top side of the mounting base is provided with a mounting groove, an insulation board is mounted in the mounting groove, and the top side of the insulation board extends out of the mounting groove.
5. The elevated ZW8-12 type outdoor column high voltage AC vacuum circuit breaker according to claim 4, wherein the insulating plate has a top height greater than a top height of the bushing block.
6. The outdoor column-mounted high voltage ac vacuum circuit breaker with lifting ZW8-12 as claimed in claim 4, wherein the mounting groove has a groove on its inner wall, the groove has a fixture block slidably mounted therein, the fixture block has a buffer groove, the buffer groove has a piston slidably and sealingly mounted therein, one side of the piston has a fixed rod fixedly mounted thereon, one end of the fixed rod extends out of the buffer groove and is fixedly connected to one inner wall of the groove, the fixed rod is sleeved with a spring, one end of the spring is fixedly connected to the inner wall of the groove, the other end of the spring is fixedly connected to the fixture block, the insulating plate has a clamping groove on its two sides, and the clamping groove is clamped to the fixture block.
7. The outdoor column-mounted high voltage ac vacuum circuit breaker with elevated ZW8-12 according to claim 6, wherein the groove has a top side and a bottom side, and the top side and the bottom side of the latch are both fixedly mounted with a stopper, and the stopper is interactively connected to the stopper groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021552819.6U CN213691870U (en) | 2020-07-30 | 2020-07-30 | Lifting ZW8-12 type outdoor column high-voltage alternating-current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021552819.6U CN213691870U (en) | 2020-07-30 | 2020-07-30 | Lifting ZW8-12 type outdoor column high-voltage alternating-current vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213691870U true CN213691870U (en) | 2021-07-13 |
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ID=76743572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021552819.6U Active CN213691870U (en) | 2020-07-30 | 2020-07-30 | Lifting ZW8-12 type outdoor column high-voltage alternating-current vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213691870U (en) |
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2020
- 2020-07-30 CN CN202021552819.6U patent/CN213691870U/en active Active
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