CN1848337A - High-pressure vacuum circuit breaker - Google Patents
High-pressure vacuum circuit breaker Download PDFInfo
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- CN1848337A CN1848337A CN 200610046332 CN200610046332A CN1848337A CN 1848337 A CN1848337 A CN 1848337A CN 200610046332 CN200610046332 CN 200610046332 CN 200610046332 A CN200610046332 A CN 200610046332A CN 1848337 A CN1848337 A CN 1848337A
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- pallet
- dynamically
- vacuum tube
- spring
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Abstract
The present invention relates to a high-voltage vacuum circuit-breaker. It is composed of upper wiring flange, lower wiring flange, arc extinguishing unit, frame, supporting frame and control box. The frame is fixedly mounted on the supporting frame, the three-phase arc extinguishing unit is fixedly mounted on the frame, all the movable components of said arc extinguishing unit are mechanically connected on the spring mechanism in the control box, the arc extinguishing unit is characterized by that in its arc extinguishing chamber a vacuum tube is mounted, and its movable contact and static contact are mounted in the vacuum tube.
Description
Technical field:
The present invention relates to electromechanical industries high-voltage switch gear field, particularly circuit breaker.
Background technology:
Circuit breaker is generally two kinds at present, and a kind of is oil-minimum breaker: generally partly be made up of arc extinguishing unit, framework, control cabinet and supporting leg etc.The arc-extinguishing medium of arc extinguishing unit is a transformer oil, and it is that arc-rupturing capacity is poor, easy to leak oil, contaminated environment by oil gas arc blow-out or cold oil arc blow-out.Framework is that three-phase is coupled together, linked by the hydraulic mechanism actuating three in the control cabinet and to realize the breaking-closing operating of circuit breaker, the general oil pressure of its hydraulic mechanism is between 24Mpa to 30Mpa, and pressure is higher, sealing difficulty is bigger, oil seepage phenomena is serious, contaminated environment, and switch need overhaul every year, the expense height, electric life is generally at 6-8 time, and mechanical endurance 2000 times, its technical parameter is lower.Another kind is SF
6Circuit breaker: structure and oil-minimum breaker are basic identical, and the arc-extinguishing medium of arc extinguishing unit is SF
6Gas, when circuit breaker cut-off, dynamic and static arcing contact produced electric arc, at this moment SF
6Spray arc extinction from spout with ultrasonic speed.Because SF
6In the presence of metal, steam and moisture, decompose under the gas high temperature, following reaction and product will be arranged:
Special SOF
2Be a kind of hypertoxic fluoride, contaminated environment.This circuit breaker institute fitting mechanism has hydraulic mechanism, spring mechanism, and electric life is generally 16-20 time, and be 2000-6000 mechanical endurance.
Summary of the invention:
The objective of the invention is to solve the not enough problem of above-mentioned two kinds of circuit breakers, a kind of high-pressure vacuum breaker is provided, contact electric mill loss rate is low, and is safe and reliable to operation, long service life.
The technical scheme that the present invention is adopted for achieving the above object is: high-pressure vacuum breaker, form by last wiring flange, following wiring flange, arc extinguishing unit, framework, support, control cabinet etc., frame fixation is rack-mount, the three-phase arc extinguishing unit is fixedly mounted on the framework, all movable members of arc extinguishing unit are mechanically connected in the control cabinet inner spring mechanism, arc extinguishing unit is in the arc control device vacuum tube to be housed, and dynamic and static contact is contained in the vacuum tube.
Described arc extinguishing unit is in the interrupting porcelain insulator vacuum tube to be housed, and two ends are equipped with quiet end conductive clip and moved end conductive clip respectively in the vacuum tube, and dynamic and static contact places in the vacuum tube and by quiet end conductive clip and moved end conductive clip and fixes.The arc control device inner chamber communicates with the strut porcelain bushing inner chamber, and is filled with SF
6Gas.
Described vacuum tube is made of insulating cylinder, dynamic and static cover plate and bellows.
Described clearance between open contacts 〉=60mm, bellows stroke 〉=90mm.
In the electric-conductor contact force-increasing mechanism is housed in the described arc control device, the movable feeler lever of the vacuum tube that assembles in the conductive clip of moved end is sleeved on contact force-increasing mechanism connecting rod and does not hold, and connecting rod is connected with the joint stage clip.Described stage clip is that left and right rotation direction spring assembly is placed.
Insulated tension pole in the described strut porcelain bushing is connected with contact force-increasing mechanism joint, and there is seal member the end.
Vacuum degree is≤10 in the described vacuum tube
-5Pa.
Described arc control device communicate with the strut porcelain bushing inner chamber, and inside is filled with the SF of 0.1MPa pressure
6Gas.
Contact contact force-increasing mechanism is housed in the described arc control device.
Electrical control, protection, signalling and SF are housed in the described control cabinet
6Gas pressure surveillance and spring mechanism.
Described spring operating mechanism, be installed with closing coil and switching winding on the support, closing coil dynamically is connected with the combined floodgate pallet, the combined floodgate pallet is rotatably installed on the axle, and axle is fixed on the support, and the combined floodgate pallet dynamically is connected with the maintenance pallet that closes a floodgate, close a floodgate and keep combined floodgate backing pin one end on the pallet to be fixed on the support, one end dynamically is connected on the ratchet, and ratchet is connected with switching-in spring by the spring pull bar, and pawl axis links by gear and motor; Switching winding dynamically is connected with the separating brake pallet, and the separating brake pallet keeps pallet dynamically to be connected with separating brake, and the separating brake backing pin dynamically is connected with cam, cam dynamically is connected with roller, cam and ratchet are with being contained on the ratchet shaft, and roller is coaxial rack-mount with connecting lever, and big connecting lever termination connects tripping spring.
Described cam is connected with freewheel clutch, freewheel clutch is that the freewheel clutch irreversible control is housed in the ring flange, it is made of special-shaped voussoir, retainer and back-moving spring, retainer surrounds circumferential, special-shaped voussoir is contained on the retainer, have spring groove on the special-shaped voussoir, back-moving spring is housed in the spring groove.Described special-shaped voussoir is shaped as the off-centre operation cylindricality.
Arc extinguishing unit of the present invention adopts in the arc control device vacuum tube is housed, and is simple in structure, and the blow-out process is finished in the vacuum tube of sealing, arc-extinguishing medium is a vacuum, and electric arc and red-hot ionized gas can or not cause flashover or puncture to clearance for insulation on every side to extraneous splash, blast and fire hazard are not pollution-free, and the arcing time is short, low, the little energy of arc voltage, thereby the electric mill loss rate of contact is low, safe and reliable to operation, long service life, 10000 life-spans of machinery are inferior, and electric life reaches 30 times.Contact travel is short, and the speed of cut-offfing is low, and operating work is little.Requirement of strength to operating mechanism reduces.Arc-control device and contact need not overhaul, and maintenance is little.Being applicable to that extremely frigid zones uses, can successfully cut-offfing various unusual short troubles, is a kind of desirable circuit breaker that suits capacitor group and reactor group.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an arc extinguishing unit structural representation of the present invention.
Fig. 3 is a contact force-increasing mechanism structural representation of the present invention.
Fig. 4 is a spring mechanism structural representation of the present invention.
Fig. 5 is a freewheel clutch irreversible control schematic diagram of the present invention.
Embodiment:
High-pressure vacuum breaker as shown in Figure 1, have wiring flange and following wiring flange on the arc extinguishing unit 1, framework 2 is fixedly mounted on the support 5, the three-phase arc extinguishing unit is fixedly mounted on the framework, arc extinguishing unit as shown in Figure 2, all movable members are mechanically connected on the control cabinet 3 inner spring operating mechanisms, electric wire is packed in the cable tube 4, arc extinguishing unit is that vacuum tube 8 is housed in the arc control device 7, and vacuum tube is made of insulating cylinder, dynamic and static cover plate and bellows, and vacuum degree is≤10
-5Two ends are equipped with quiet end conductive clip 6 and moved end conductive clip 9 respectively in the Pa, vacuum tube, and dynamic and static contact places in the vacuum tube and is contained on quiet end conductive clip and the moved end conductive clip clearance between open contacts 〉=60mm, bellows stroke 〉=90mm.Arc control device inner chamber 10 communicates with the strut porcelain bushing inner chamber, and is filled with SF
6Gas, SF
6Gas is as arc-extinguishing medium (the SF6 gas that disconnects without high temperature is not nontoxic, colourless, tasteless), but is used to improve the insulation property of arc extinguishing unit inside.Insulated tension pole 13 mainly plays the insulation against ground effect, simultaneously certain mechanical strength will be arranged, and guarantees circuit breaker breaking-closing operating normally, 14 main external insulations of strut porcelain bushing and sealing supporting role.In the electric-conductor 11 contact force-increasing mechanism 12 as described in Figure 3 is housed in the arc control device, the movable feeler lever of the vacuum tube of assembling is sleeved on contact force-increasing mechanism connecting rod axis hole 16 in the conductive clip of moved end, connecting rod 17 is installed in the housing 18, and connecting rod is equipped with left and right rotation direction combination stage clip 19 with joint 20 centres and is connected.The contact force-increasing mechanism guarantees vacuum tube, and dynamic and static contact contact is good, reduces contact resistance, makes the circuit breaker operation more safe and reliable.Insulated tension pole in the strut porcelain bushing is connected with contact force-increasing mechanism joint, and there is seal member 15 end, guarantees SF
6Gas does not leak, and strengthens circuit breaker built-in electrical insulation performance.Breaker operation mechanism is a spring operating mechanism, its structure as shown in Figure 4, it is to be installed with closing coil 33 and switching winding 34 on the support, closing coil dynamically is connected with combined floodgate pallet 32, the combined floodgate pallet is rotatably installed on the axle, axle is fixed on the support, the combined floodgate pallet dynamically is connected with the maintenance pallet 31 that closes a floodgate, close a floodgate and keep combined floodgate backing pin 30 1 ends on the pallet to be fixed on the support, one end dynamically is connected on the ratchet 28, ratchet is connected with switching-in spring 29 by the spring pull bar, and pawl axis 24 links by gear and motor; Switching winding dynamically is connected with separating brake pallet 21, the separating brake pallet keeps pallet 22 dynamically to be connected with separating brake, separating brake backing pin 23 dynamically is connected with cam 26, cam is driven by freewheel clutch, cam dynamically is connected with roller, roller is coaxial rack-mount with connecting lever 25, and big connecting lever termination connects tripping spring 27.Freewheel clutch is that the freewheel clutch irreversible control is housed in the ring flange, it is made of the special-shaped voussoir 35 of off-centre operation cylindricality, retainer 36 and back-moving spring 37, and retainer surrounds circumferential, and special-shaped voussoir is contained on the retainer, have spring groove on the special-shaped voussoir, back-moving spring is housed in the spring groove.
Sub-switching operation during use: charged after the tripping electromagnet coil is accepted sub-gate signal, the sincere son of separating brake is impacted in the iron core action, the separating brake pallet rotates to clockwise direction, discharge separating brake and keep pallet, separating brake keeps pallet also to the clockwise direction rotation, and discharges the separating brake backing pin, and connecting lever rotates to counter clockwise direction under the effect of tripping spring, connecting lever moves downward by the pull bar that connected link rod drives in the arc extinguishing unit, makes breaker open operation.
The behaviour that closes a floodgate uses: charged after the making electromagnet coil is accepted switching signal, the iron core action is impacted the sincere son that closes a floodgate and is rotated to clockwise direction, discharging closes a floodgate keeps sincere son, close a floodgate and keep pallet to be rotated counterclockwise release combined floodgate backing pin, the switching-in spring of cam same axis discharges, drive cam and radiate rotation clockwise, promoting the big connecting lever of rotation during cam rotation rotates, and compression tripping spring, connecting lever moves upward by pull bar in the link rod drive arc extinguishing unit, make breaker closing, to be connected in the tripping spring energy storage of connecting lever simultaneously, electric motor starting makes the pawl axis rotation during energy storage, and the ratchet on the eccentric pawl axis alternately meshes with ratchet in rotation, and ratchet rotates counterclockwise, by the energy storage of pull bar example switching-in spring, after crossing the dead-centre position, ratchet shaft is given anticlockwise rotating torque by switching-in spring, stops by the combined floodgate backing pin pallet that closed a floodgate.Prepare against separating brake usefulness next time.
Claims (10)
1, high-pressure vacuum breaker, form by last wiring flange, following wiring flange, arc extinguishing unit, framework, support, control cabinet etc., frame fixation is rack-mount, the three-phase arc extinguishing unit is fixedly mounted on the framework, all movable members of arc extinguishing unit are mechanically connected on the interior operating mechanism of control cabinet, it is characterized in that: arc extinguishing unit (1) is equipped with vacuum tube in the arc control device, and vacuum degree is≤10 in the vacuum tube
-5Pa, dynamic and static contact is contained in the vacuum tube.
2, high-pressure vacuum breaker according to claim 1, it is characterized in that: arc extinguishing unit is in arc control device (7) insulator vacuum tube (8) to be housed, two ends are equipped with quiet end conductive clip (6) and moved end conductive clip (9) respectively in the vacuum tube, and dynamic and static contact places in the vacuum tube and by quiet end conductive clip and moved end conductive clip and fixes.
3, high-pressure vacuum breaker according to claim 1 is characterized in that: arc control device inner chamber (10) communicates with the strut porcelain bushing inner chamber, and is filled with the SF of 0.1MPa pressure
6Gas.
4, high-pressure vacuum breaker according to claim 2 is characterized in that: vacuum tube (8) is that insulating cylinder, dynamic and static cover plate and bellows constitute.
5, high-pressure vacuum breaker according to claim 1 is characterized in that: clearance between open contacts 〉=60mm, bellows stroke 〉=90mm.
6, high-pressure vacuum breaker according to claim 1, it is characterized in that: in the electric-conductor (6) contact force-increasing mechanism (12) is housed in the arc control device, the movable feeler lever of the vacuum tube of assembling is sleeved in the contact force-increasing mechanism connecting rod axis hole (16) in the conductive clip of moved end, and connecting rod (17) is connected by stage clip (19) with joint (20).
7, high-pressure vacuum breaker according to claim 2 is characterized in that: the insulated tension pole in the strut porcelain bushing (14) is connected with contact force-increasing mechanism joint, and there is seal member (15) end.
8, high-pressure vacuum breaker according to claim 1 is characterized in that: control cabinet is equipped with electrical control, protection, signalling and SF in (3)
6Gas pressure surveillance and operating mechanism.
9, high-pressure vacuum breaker according to claim 1, it is characterized in that: operating mechanism is a spring operating mechanism, be installed with closing coil (33) and switching winding (34) on the support, closing coil dynamically is connected with combined floodgate pallet (32), the combined floodgate pallet is rotatably installed on the axle, axle is fixed on the support, the combined floodgate pallet dynamically is connected with the maintenance pallet (31) that closes a floodgate, close a floodgate and keep combined floodgate backing pin (30) one ends on the pallet to be fixed on the support, one end dynamically is connected on the ratchet (28), ratchet is connected with switching-in spring (29) by the spring pull bar, and pawl axis (24) links by gear and motor; Switching winding dynamically is connected with separating brake pallet (21), the separating brake pallet keeps pallet (22) dynamically to be connected with separating brake, separating brake backing pin (23) dynamically is connected with cam (26), cam is driven by freewheel clutch, cam dynamically is connected with roller, roller is coaxial rack-mount with connecting lever (25), and big connecting lever termination connects tripping spring (27).
10, high-pressure vacuum breaker according to claim 9, it is characterized in that: cam is connected with freewheel clutch, freewheel clutch is that the freewheel clutch irreversible control is housed in the ring flange, it is made of the special-shaped voussoir (35) of off-centre operation cylindricality, retainer (36) and back-moving spring (37), retainer surrounds circumferential, special-shaped voussoir is contained on the retainer, has spring groove on the special-shaped voussoir, and back-moving spring is housed in the spring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100463329A CN100485844C (en) | 2006-04-17 | 2006-04-17 | High-pressure vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100463329A CN100485844C (en) | 2006-04-17 | 2006-04-17 | High-pressure vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1848337A true CN1848337A (en) | 2006-10-18 |
| CN100485844C CN100485844C (en) | 2009-05-06 |
Family
ID=37077844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100463329A Expired - Fee Related CN100485844C (en) | 2006-04-17 | 2006-04-17 | High-pressure vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100485844C (en) |
Cited By (5)
| 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 |
| CN103367059A (en) * | 2013-08-02 | 2013-10-23 | 胡俊兵 | High-voltage intelligent circuit breaker |
| CN106814255A (en) * | 2015-11-27 | 2017-06-09 | 中国电力科学研究院 | A kind of SF6 breakers dynamic contact resistance detection means |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
| CN111220641A (en) * | 2019-11-21 | 2020-06-02 | 河南平高电气股份有限公司 | Ablation resistance detection device, detection method and evaluation method for arc extinguishing nozzle |
-
2006
- 2006-04-17 CN CNB2006100463329A patent/CN100485844C/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN103367059A (en) * | 2013-08-02 | 2013-10-23 | 胡俊兵 | High-voltage intelligent circuit breaker |
| CN103367059B (en) * | 2013-08-02 | 2016-03-16 | 胡俊兵 | A kind of high-voltage intelligent circuit breaker |
| CN106814255A (en) * | 2015-11-27 | 2017-06-09 | 中国电力科学研究院 | A kind of SF6 breakers dynamic contact resistance detection means |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
| CN108133868B (en) * | 2017-12-29 | 2024-04-30 | 武汉长海电气科技开发有限公司 | Direct current contactor contact system |
| CN111220641A (en) * | 2019-11-21 | 2020-06-02 | 河南平高电气股份有限公司 | Ablation resistance detection device, detection method and evaluation method for arc extinguishing nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100485844C (en) | 2009-05-06 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090506 Termination date: 20180417 |