CN201956268U - Indoor solid-sealed type high-voltage vacuum circuit breaker - Google Patents
Indoor solid-sealed type high-voltage vacuum circuit breaker Download PDFInfo
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- CN201956268U CN201956268U CN2011200908193U CN201120090819U CN201956268U CN 201956268 U CN201956268 U CN 201956268U CN 2011200908193 U CN2011200908193 U CN 2011200908193U CN 201120090819 U CN201120090819 U CN 201120090819U CN 201956268 U CN201956268 U CN 201956268U
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- brake
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- spring
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Abstract
The utility model relates to an indoor solid-sealed type high-voltage vacuum circuit breaker, which consists of a solid-sealed polar pole, a vacuum arc extinguish chamber, a case, a brake-closing limiter, a gear mechanism, a cam mechanism, an input crankarm, an energy-storage motor, a four-connecting rod transmission mechanism, a brake-separating spring, an insulated pull rod, a brake-closing release, a bearing, a brake-separating half shaft, a transmission claw, an one-way clutch, an one-way bearing, an energy-storage shaft, an energy-storage indicator, a crankarm, a brake-closing spring, a buffer, a brake-separating/closing indicator, a main shaft, a brake-separating release and an auxiliary switch, wherein the brake-closing limiter is arranged inside the case; the gear mechanism, the cam mechanism and the energy-storage motor are installed under the brake-closing limiter; the input crankarm is connected with the four-connecting rod transmission mechanism, the brake-separating spring and the insulated pull rod respectively; the brake-closing release is connected with the brake-closing half shaft; the bearing, the transmission claw and the one-way clutch are positioned on the energy-storage shaft; the one-way bearing is positioned under the energy-storage shaft; the crankarm is arranged under the brake-closing spring; and the auxiliary switch is arranged under the main shaft. The indoor solid-sealed type high-voltage vacuum circuit breaker has the advantages of good electric property, high insulation level, long service life, free pollution and low noise and is simple to maintain.
Description
Technical field
The utility model belongs to the technical field of power supply grid electrical equipment, especially belongs to a kind of fixed sealing type high-pressure vacuum breaker.
Background technology
The effect of primary cut-out is that electric energy is taken off from electrical network, then electric energy is assigned to once more the power consumption equipment of next stage.So safety for electrical network and equipment; primary cut-out will have certain connecting-disconnecting function and can cut-off prospective short circuit current to protect the safety of electrical network and power consumption equipment; simultaneously; it is high that the external insulation of circuit breaker self is wanted; otherwise; if circuit breaker self end of incoming cables is short-circuited if insulation is low; circuit breaker itself can not be protected; have only tripping operation, can cause large-area power-cuts like this, will cause very big economic loss; also can cause great danger to electrical network; for fear of causing above-mentioned danger, circuit breaker also will have fabulous external insulation except great connecting-disconnecting function will be arranged.
From the evolution of circuit breaker, what first generation breaker arc extinguishing medium and external insulation medium leaned on is air, and it is all poor that switch cut-offs with insulating capacity.The second generation is few oil and bulk-oil circuit-breaker, and the switch connecting-disconnecting function increases, and insulation also strengthens to some extent, but Switch main body is heavy, and the maintenance of switch is bothered especially.Third generation circuit breaker is SF
6Circuit breaker and vacuum circuit-breaker (as ZN28, VS1-12), this class switch arc extinguishing is by SF
6And vacuum, switch connecting-disconnecting function height, non-maintaining, the inflation cabinet of several years ago advocating (GIS cabinet) particularly, external insulation is also by SF
6, because SF
6Gas-insulated ability height is three times of air, so that switch and cabinet all can be accomplished is very little, and also non-maintaining, so very popular with users, but in Kyoto Protocol in 1997, be put into one of 6 big greenhouse gases, the environmental pollution especially severe, though from gas emissions, SF
6Less and few, but, endanger quite big from potential influence.One, SF
6Individual molecule is CO to the influence of greenhouse effect
223900 times; Its two, SF
6The survival life-span in atmosphere is 2300, and waste gas was both difficult to be reclaimed, and can't decompose again, can only remain in harm humans health in the atmosphere, so just eliminate SF at home and abroad gradually
6Gas particularly just clearly sent restriction in 1997 and uses in the Kyoto Protocol, reduce discharging SF
6Gas, SF so far
6The use of gas is subjected to clear and definite restriction, particularly under the call of low-carbon (LC) that China advocates, reduction of discharging, and SF
6The use that gas is made dielectric is restricted.But than serious environmental, and under the relatively nervous condition of land use, the use of switch generally all is placed in the basement at China's damage ratio, and industry stipulates that clearly switch and switch cubicle should be made by the class of pollution 3.The class of pollution 3 is exactly: have the conductivity pollution or become the pollution of conductivity owing to condensation makes dry non-conductive pollution.
The utility model content
The purpose of this utility model provides a kind of indoor fixed sealing type high-pressure vacuum breaker that adopts the epoxy resins insulation vacuum interrupter.
Indoor fixed sealing type high-pressure vacuum breaker, form by pole, vacuum interrupter, cabinet, the sincere son of combined floodgate, gear mechanism, cam mechanism, input connecting lever, energy storage motor, four jointed gear units, tripping spring, insulated tension pole, combined floodgate release, bearing, combined floodgate semiaxis, driving pawl, one-way clutch, unilateral bearing, energy storage axle, energy storage indication, connecting lever, switching-in spring, buffer, divide-shut brake indication, main shaft, separating brake release and auxiliary switch, in the described pole vacuum interrupter is set; Arrangement form before and after described vacuum interrupter and cabinet are; Be provided with the sincere son that closes a floodgate in the described cabinet, it has gear mechanism, cam mechanism and energy storage motor; Described input connecting lever links to each other with four jointed gear units, tripping spring and insulated tension pole; Described combined floodgate release links to each other with the combined floodgate semiaxis, and described energy storage axle is provided with bearing, driving pawl and one-way clutch, and it has unilateral bearing; Described switching-in spring has connecting lever, and described main shaft has an auxiliary switch.
Adopt the beneficial effect of technique scheme to be:
1, the utility model adopts ripe automatic pressure gelation process (APG), with vacuum interrupter and outlet terminal poured with epoxy resin moulding up and down, the adjustment link of circuit breaker and the pollution of vacuum extinction chamber enclosure have been reduced, be not subjected to the influence of external environment (as dust, moisture, toy etc.), the electricity that has further the improved pole situation that all distributes, improved reliability, really realized non-maintaining.
2, the utility model spring operating mechanism adopts optimal design, it is simple in structure, parts are few, the reliability height, operation and maintenance safe are convenient, compact design has realized the miniaturization of circuit breaker and switch cubicle, adopts advanced process of surface treatment and lubrication technology, has improved the resistance to wear and the anti-corrosion ability of product.
3, the utility model carries out frequent operation or repeatedly cut-offs that at need very excellent performance and high operating reliability and useful life are arranged under the occasion of short circuit current, has the reclosing function.
4, the utility model adopts novel contact material and structure of contact terminal, and its connecting-disconnecting function is strong, reliability height, vacuum interrupter loop resistance low (Ir=1250A, R=9 ± 1 μ Ω; Ir=3150A, R=7 ± 1 μ Ω) make its complete machine main conductive circuit contact resistance extremely low (during Ir≤1250A, R≤45 μ Ω; During 1600≤Ir≤2000A, R≤35 μ Ω; During Ir 〉=2500A, R≤25 μ Ω).Thereby reduced caloric value from the source, therefore guaranteed that fully the temperature rise of pole is no more than permissible value, also fundamentally solved the difficult problem of big capacity fixed sealing type circuit breaker heat radiation.
5, the utlity model has excellent electrical properties, insulation level height, long service life, safeguard characteristics such as simple, pollution-free, no explosion hazard and noise are low.
Description of drawings
Fig. 1 is the front view of the indoor fixed sealing type high-pressure vacuum breaker of the utility model;
Among the figure: 1-pole, 2-vacuum interrupter, 3-cabinet, 4-close a floodgate sincere son, 5-gear mechanism, 6-cam mechanism, 7-input connecting lever, 8-energy storage motor, 9-four jointed gear units, 10-tripping spring, 11-insulated tension pole;
Fig. 2 is the left view of Fig. 1;
Among the figure: 12-combined floodgate release, 13-bearing, 14-combined floodgate semiaxis, 15-driving pawl, 16-one-way clutch, 17-unilateral bearing, 18-energy storage axle, 19-energy storage indication, 20-connecting lever, 21-switching-in spring, 22-buffer, the indication of 23-divide-shut brake, 24-main shaft, 25-separating brake release, 26-auxiliary switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
1, design feature
The utility model adopts the form of arranging before and after operating mechanism and the arc quenching system, make the folding desired properties of the operating characteristics of mechanism and vacuum interrupter 2 more identical, reduce unnecessary middle transmission link, reduced energy consumption and noise, make the operating characteristics of circuit breaker more reliable.
Arc control device of the present utility model are arc-extinguishing medium and dielectric with the vacuum, adopt copper-chromium contact material and cup shape and longitudinal magnetic field structure, have that withstand voltage level height, dielectric strength are stable, recover rapidly behind the arc, Chopping Current is low, connecting-disconnecting function reaches advantages such as electrical wear is little by force.
Operating mechanism is the spring energy-storage formula of floor plan, has manual energy storage and electric energy-stored function; Be divided into five assembly spaces by four dividing plates in the cabinet 3, energy storage section, running part, dropout part and buffering part are housed respectively.
The utility model both can be used as the fixed installation unit fixed switch cubicle of packing into, also can join special-purpose propulsive mechanism (chassis car) and form the handcart unit handcart switch cabinet of packing into and use.
Be provided with latching electromagnet and anti-trip relay in the control loop of the present utility model, have electric-magnetic lock and anti-jump function.In addition, the utility model has also disposed overcurrent release, can realize overcurrent protection function.
2, operation principle
(1) arc quenching principle
It is the arc control device of arc extinguishing and dielectric that the utility model adopts with the vacuum, has high vacuum degree.When dynamic and static contact during charged separation, will produce electric arc between contact under the operating mechanism effect.Because the special construction of contact also can produce suitable vertical magnetic field in the contact gap, impel the electric arc diffusion, and make electric arc be evenly distributed in the contact surface burning, to keep low arc voltage.When the electric current natural zero-crossing, residual ion, electronics and metallic vapour just can be compound or condense upon on contact surface and the radome in the time of the microsecond order of magnitude, make the very fast recovery of medium dielectric strength of arc control device fracture, thereby extinguish arcs reaches the purpose of disjunction.
(2) energy storage action
The energy that the utility model combined floodgate is required is provided by the switching-in spring energy storage.During stored energy operation, connect the energy storage motor power supply or the energy storage handle inserted to clockwise rotate in the manual stored energy operation hole and carry out.As shown in Figure 1 and Figure 2, electric energy-stored by energy storage motor 8 output shaft driven gear transmission mechanisms 5; Manually energy storage is rotated by manual cam driven gear drive 5.The connecting lever 20 that drives the switching-in spring 21 on the energy storage axle 18 rotates, thereby elongates switching-in spring 21, reaches the energy storage purpose.After the switching-in spring energy storage was finished, energy was closed a floodgate by energy storage and sincere sub 4 keeps.19 flip displays " energy storage " mark is indicated in energy storage simultaneously, and switches the energy storage sensitive switch with the cut-out of energy storage motor current supply circuit, allows circuit breaker be in the combined floodgate standby condition.
(3) feed motion
After mechanism's energy storage, if receive the closing operation signal, manually pressing " combined floodgate " button or connecting the control power supply makes making electromagnet 12 moving iron cores that adhesive is travelled forward, catch and make combined floodgate semiaxis 14 do the clockwise direction rotation, thereby removed the constraint that energy storage keeps sincere sub 4 pairs of energy storage axles 18, switching-in spring 21 energy discharge, making combined floodgate cam 6 make clockwise direction rotates, the moving conductive rod that drives vacuum interrupter 2 by the insulated tension pole 11 in four jointed gear units, the 9 pulling poles 1 moves upward, and finishes feed motion.After closing operation is finished, keep pallet 4 and semiaxis 14 to keep closing position by closing a floodgate.Connecting plate pulling is closed branch direction board 23 and is shown " closing " marks, the indication of energy storage simultaneously 19 demonstrations " not energy storage " the mark (see figure 2) that resets, and the energy storage sensitive switch resets the energy storage motor current supply circuit is connected, and connects to control power supply and can carry out stored energy operation once more.In addition, under the drive of main shaft, kinematic link pulling auxiliary switch switches, and connects the separating brake control loop.
(4) separating brake
During sub-switching operation, manually press " separating brake " button or connect the control power supply and make tripping electromagnet 25 actions, making closes a floodgate keeps pallet 4 to realize sub-switching operation with semiaxis 14 releases.Owing under the acting in conjunction of contact pressure spring and tripping spring 10 arc control device 2 dynamic and static contacts are separated,, absorb separating brake process dump energy and limit the separating brake position by buffer 22 at separating brake process back segment.The connecting plate pulling is closed branch direction board 23 and is shown " branch " mark, spurs counter simultaneously and counts.In addition, under the drive of main shaft, kinematic link pulling auxiliary switch switches, and connects the combined floodgate control loop.
Claims (1)
1. indoor fixed sealing type high-pressure vacuum breaker, it is characterized in that: it is by pole (1), vacuum interrupter (2), cabinet (3), sincere son (4) closes a floodgate, gear mechanism (5), cam mechanism (6), input connecting lever (7), energy storage motor (8), four jointed gear units (9), tripping spring (10), insulated tension pole (11), combined floodgate release (12), bearing (13), combined floodgate semiaxis (14), driving pawl (15), one-way clutch (16), unilateral bearing (17), energy storage axle (18), energy storage indication (19), connecting lever (20), switching-in spring (21), buffer (22), divide-shut brake indication (23), main shaft (24), separating brake release (25) and auxiliary switch (26) are formed, and vacuum interrupter (2) is set in the described pole (1); Arrangement form before and after described vacuum interrupter (2) is with cabinet (3); Be provided with the sincere son (4) that closes a floodgate in the described cabinet (3), it has gear mechanism (5), cam mechanism (6) and energy storage motor (8); Described input connecting lever (7) links to each other with four jointed gear units (9), tripping spring (10) and insulated tension pole (11); Described combined floodgate release (12) links to each other with combined floodgate semiaxis (14), and described energy storage axle (18) is provided with bearing (13), driving pawl (15) and one-way clutch (16), and it has unilateral bearing (17); Described switching-in spring (21) has connecting lever (20), and described main shaft (24) has an auxiliary switch (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200908193U CN201956268U (en) | 2011-03-29 | 2011-03-29 | Indoor solid-sealed type high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200908193U CN201956268U (en) | 2011-03-29 | 2011-03-29 | Indoor solid-sealed type high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956268U true CN201956268U (en) | 2011-08-31 |
Family
ID=44500372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200908193U Expired - Fee Related CN201956268U (en) | 2011-03-29 | 2011-03-29 | Indoor solid-sealed type high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956268U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013102286A1 (en) * | 2012-01-04 | 2013-07-11 | 苏州朗格电气有限公司 | Vacuum breaker with closing holding device |
| CN106601541A (en) * | 2017-01-11 | 2017-04-26 | 天津平高智能电气有限公司 | Circuit breaker |
| CN107064647A (en) * | 2017-04-24 | 2017-08-18 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN107403706A (en) * | 2017-08-10 | 2017-11-28 | 王红丹 | The 24KV vacuum high-pressure breakers of small modular spring operating mechanism |
| CN109509684A (en) * | 2017-09-15 | 2019-03-22 | 南京美克斯精密机械有限公司 | A kind of numerically-controlled machine tool breaker |
| CN113205975A (en) * | 2021-03-25 | 2021-08-03 | 国网河北省电力有限公司电力科学研究院 | Intelligent circuit breaker |
| CN113745047A (en) * | 2021-07-01 | 2021-12-03 | 巨东电气有限公司 | Indoor vacuum circuit breaker |
| CN113838711A (en) * | 2020-06-08 | 2021-12-24 | 浙江正泰电器股份有限公司 | Automatic switching-on and switching-off circuit breaker |
-
2011
- 2011-03-29 CN CN2011200908193U patent/CN201956268U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013102286A1 (en) * | 2012-01-04 | 2013-07-11 | 苏州朗格电气有限公司 | Vacuum breaker with closing holding device |
| CN106601541A (en) * | 2017-01-11 | 2017-04-26 | 天津平高智能电气有限公司 | Circuit breaker |
| CN106601541B (en) * | 2017-01-11 | 2018-11-09 | 天津平高智能电气有限公司 | A kind of breaker |
| CN107064647A (en) * | 2017-04-24 | 2017-08-18 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN107064647B (en) * | 2017-04-24 | 2018-06-29 | 东营市垦利区明珠电力工程有限公司 | A kind of handcart type breaker loop resistance test device |
| CN107403706A (en) * | 2017-08-10 | 2017-11-28 | 王红丹 | The 24KV vacuum high-pressure breakers of small modular spring operating mechanism |
| CN107403706B (en) * | 2017-08-10 | 2019-12-06 | 苏州市相城区黄桥工业园经济发展有限公司 | 24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism |
| CN109509684A (en) * | 2017-09-15 | 2019-03-22 | 南京美克斯精密机械有限公司 | A kind of numerically-controlled machine tool breaker |
| CN113838711A (en) * | 2020-06-08 | 2021-12-24 | 浙江正泰电器股份有限公司 | Automatic switching-on and switching-off circuit breaker |
| CN113205975A (en) * | 2021-03-25 | 2021-08-03 | 国网河北省电力有限公司电力科学研究院 | Intelligent circuit breaker |
| CN113745047A (en) * | 2021-07-01 | 2021-12-03 | 巨东电气有限公司 | Indoor vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20200329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |