CN2222399Y - Three-phase mechanical coupled knob type circuit breaker - Google Patents
Three-phase mechanical coupled knob type circuit breaker Download PDFInfo
- Publication number
- CN2222399Y CN2222399Y CN 94246343 CN94246343U CN2222399Y CN 2222399 Y CN2222399 Y CN 2222399Y CN 94246343 CN94246343 CN 94246343 CN 94246343 U CN94246343 U CN 94246343U CN 2222399 Y CN2222399 Y CN 2222399Y
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- CN
- China
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- circuit breaker
- connecting lever
- phase
- pull bar
- utility
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- Expired - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The utility model relates to a three-phase mechanical coupled knob type circuit breaker, which is used in the power transmission and transformation line of the high-voltage electrical apparatus industry and plays control and protective action. The current 126KV circuit breaker adopts double-fracture adding parallel capacitors, and adopts electrical coupling in three-phase linkage. The design has small switching capacity, low technical economical index and poor reliability. The breaker mouth designed by the utility model is a single-fracture without parallel capacitors, and adopts three-phase mechanical coupled type operating structure. The circuit breaker transfers the operating force of one mechanism to a three-phase arc-extinguishing chamber through a driving mechanism. A pneumatic mechanism is composed of a piston, a cylinder, a sluice dividing control mechanism, a sluice closing control mechanism, an anti-jump mechanism, a buffer, etc. The utility model has the advantages of simple and reasonable structural design, reliable action, few wearing parts, high mechanical lifetime and good buffering performance.
Description
The utility model is a kind of circuit breaker that High-Voltage Electrical Appliances industry power transmission and transformation line plays control and protective effect that is used for.
At present the circuit breaker of 126kv adopts the double break mouth, adds capacitor in parallel, and three adopt when linking electric-linkedly, and it is little that capacity is cut-off in this design, and technical-economic index is low, and reliability is relatively poor.
The utility model designs at above-mentioned situation, and the purpose of this utility model changes the double break mouth into single break exactly, no shunt capacitance, strengthens the capacity that cut-offs of circuit breaker, adopts the operation of three-phase mechanical linkage formula, improves reliability.
Design of the present utility model is: pneumatic operator of circuit breaker configuration carries out three-phase mechanical linkage operation.Mechanism places the arc control device below, and there is shore supports on both sides, by transmission mechanism the operating physical force of a mechanism are sent to the three-phase arc control device, and arc control device adopt single pressure type, become blow-out distance, two blowing structure.Pneumatic mechanism is made up of piston, cylinder, branch gate controlling mechanism, combined floodgate controlling organization, anti-pumping device, buffer etc.During sub-switching operation, open control valve, the gas in the compressed air cylinder enters cylinder, promotes piston and moves downward, and drives the operating mechanism link rod four connecting levers are rotated, and three insulating bars that link move downward simultaneously and make moving contact motion, breaker open operation.Because during sub-switching operation, the switching-in spring energy storage is given in the piston work done, during with regard to this closing operation, the required power of contact combined floodgate is that switching-in spring is supplied with, when keeping pallet to be released, piston is driven upwards by switching-in spring, promotes three-phase link gear opposite direction when separating brake and moves, thereby three insulating bars are moved upward simultaneously, drive moving contact and fixed contact closure.
When the separating brake position, circuit breaker is to be pinned by the maintenance pallet machinery that is connected on the machinery frame.Switching-in spring is retrained by release the counter-clockwise moment that keeps pallet to produce, and the counter-clockwise direction moment that release is subjected to keeping pallet to transmit is the constraint of the spring force on the release again.This mechanical lock mechanism that the utility model adopts and mechanical linkage which controls is simple in structure, few easy workout part is than electric-linked reliability height.The buffer of its adapted is oil bumper, shock-absorbing capacity good it directly link to each other with piston.Its effect be minute, when closing operation finishes, suppress to divide, the impact of closing operation.Link to each other by copper pipe between the three-phase arc control device, and valve is housed respectively, and connect to air gauge, SF6 gas density switch and air supply opening with copper pipe.SF6 gas in the circuit breaker is by density control, rather than depended on pressure is controlled and residing at that time ambient temperature is irrelevant.
Do further and specify below in conjunction with accompanying drawing 1, accompanying drawing 2,3 pairs of the utility model of accompanying drawing:
In the accompanying drawing 1: (1) fixed contact, (2) moving contact, (3) axle " A ", (4) closing coil, (5) release, (6) keep pallet, (7) piston, (8) cylinder, (9) exhaust outlet, (10) connecting plate, (11) cam, (12) switching winding, (13) pallet, (14) control valve, (15) compressed air, (16) barrel valve, (17) switching-in spring, (18) buffer.
In the accompanying drawing 2: (1 ') underframe, (2 ') connecting lever, (3 ') pull bar, (4 ') connecting rod, (5 ') action bars, (6 ') pull bar, (7 ') connecting lever, (8 ') connecting lever, (9 ') pull bar, (10 ') connecting lever, (11 ') connecting plate.
In the accompanying drawing 3: (1 ") copper pipe, (2 ") valve E, F, G, C (3 ") gas density controller, (4 ") gas gauge.
Switching winding (12) is when obtaining sub-gate signal as shown in Figure 1 during separating brake, and bar unshakable in one's determination moves downward, bump pallet (13), and pallet (13) is made up of 2 levers and 3 pins.One of them pin of mark white point pins pallet (13), and another connects two bars, and 2 pins of mark stain are fixed on two bars on the frame respectively.The right bar of pallet (13) will clockwise rotate under the bump of switching winding bar unshakable in one's determination, and left bar then rotates counterclockwise.Engagement between pallet (13) and connecting plate (10) just has been released like this.When connecting plate (10) when being released, barrel valve (17), thereby just unfetteredly open by spring force.Compressed air in air accumulator this moment (16) flows into cylinder, promoting piston (7) and pull bar (9) moves downward, make switching-in spring (17) energy storage, drive link gear simultaneously, connecting lever (2 ') and connecting lever (8 ') are rotated counterclockwise as shown in Figure 2, connecting lever (10 ') and connecting lever (7 ') turn clockwise, and all insulating bars are pulled to down, drive the moving contact separating brake.At separating brake position circuit breaker is to be pinned by the maintenance pallet machinery that is connected on the mechanism rack.The counter-clockwise direction moment that switching-in spring (17) produces keep pulling (6) remains on gate-dividing state again for the constraint of the spring force on the release (5).
Buffer (18) is an oil bumper, and it directly links to each other with piston (7).The effect of buffer is attached section of the end when breaking-closing operating, suppresses the impact of divide-shut brake.
Closing coil (4) is when obtaining switching signal, and bar unshakable in one's determination moves downward, bump release (5).Release and separating brake keep the engagement of pallet (6) to be freed.Piston (7) and pull bar (9) are promoted upwards by switching-in spring (17) like this, and the direction of motion is opposite when making the three-phase link gear direction of motion and separating brake, drive moving contact (2) and close a floodgate.
As shown in Figure 3, (1 ") links to each other, and valve (E), (F), (G) Guan Lianxiang air gauge (4 "), SF6 gas density controller (3 ") and air supply opening are housed respectively by copper pipe between the utility model three-phase arc control device.Valve (E), (F), (G) under normal circumstances should be in the enable possition, and be consistent with the SF6 gas pressure of keeping in three-phase arc control device, air gauge and the gas density controller.Valve (C) under normal circumstances should be in the close position.Air supply opening is used O RunddichtringO and blank flange sealing, when the SF6 gas density descends, sends warning, and mouth is filled SF6 gas thus.Gas density controller has the compensating action of variations in temperature.
Claims (3)
1. a primary cut-out of being made up of air pressing type arc control device, support insulator, mechanism case etc. is characterized by: circuit breaker adopts single break, no shunt capacitance structure, pneumatic operating mechanism of its configuration links to each other with the three-phase link gear, operating mechanism places the arc control device below, there is shore supports on both sides, mainly by a minute gate controlling mechanism, combined floodgate controlling organization, anti-pumping device, buffer, cylinder, piston are formed for it.
2. according to the circuit breaker described in the claim 1, it is characterized in that: its branch gate controlling mechanism, mainly formed by connecting plate, cam, switching winding, pallet, control valve, barrel valve; Its combined floodgate controlling organization mainly is made up of axle " A ", closing coil, release, maintenance pallet, switching-in spring.
3. according to the circuit breaker described in the claim 1, it is characterized by: its link gear is by underframe, and connecting lever, pull bar, connecting rod, action bars, connecting plate are formed; Pull bar (9 ') trace (4 ') and action bars (5 '), connecting lever (8 '), connecting rod (4 ') links to each other with connecting lever (10 '), and pull bar (6 ') two ends are connected with connecting lever (8 '), connecting lever (7 '); Pull bar (3 ') two ends connect with connecting lever (10 '), connecting lever (2 ') respectively, and connecting lever (2 ') is connected with two insulating bars respectively by connecting plate with connecting lever (7 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246343 CN2222399Y (en) | 1994-12-28 | 1994-12-28 | Three-phase mechanical coupled knob type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246343 CN2222399Y (en) | 1994-12-28 | 1994-12-28 | Three-phase mechanical coupled knob type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222399Y true CN2222399Y (en) | 1996-03-13 |
Family
ID=33851857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246343 Expired - Lifetime CN2222399Y (en) | 1994-12-28 | 1994-12-28 | Three-phase mechanical coupled knob type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222399Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675047A (en) * | 2021-08-12 | 2021-11-19 | 常州博瑞电力自动化设备有限公司 | Compact electromagnetic repulsion force operating mechanism and three-phase switch using same |
-
1994
- 1994-12-28 CN CN 94246343 patent/CN2222399Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675047A (en) * | 2021-08-12 | 2021-11-19 | 常州博瑞电力自动化设备有限公司 | Compact electromagnetic repulsion force operating mechanism and three-phase switch using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI AN XIKAI HIGH VOLTAGE ELECTRIC CO., LTD. Free format text: FORMER NAME OR ADDRESS: XI AN HIGH-TENSION SWITCH FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 710068 Xi'an City High Road No. 33 Patentee after: Xi'an Xikai High-Voltage Electric Co., Ltd. Address before: 710077 No. 29, Daqing Road, Xi'an Patentee before: Xi-an High-Voltage Factory |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |