CN201503804U - High-voltage synchronous vacuum contactor - Google Patents
High-voltage synchronous vacuum contactor Download PDFInfo
- Publication number
- CN201503804U CN201503804U CN200920069452XU CN200920069452U CN201503804U CN 201503804 U CN201503804 U CN 201503804U CN 200920069452X U CN200920069452X U CN 200920069452XU CN 200920069452 U CN200920069452 U CN 200920069452U CN 201503804 U CN201503804 U CN 201503804U
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- voltage
- contact
- permanent magnet
- magnet mechanism
- vacuum contactor
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Abstract
A high-voltage synchronous vacuum contactor comprises a permanent magnetic mechanism, a connecting rod mechanism, a vacuum tube, a discharge capacitor driving circuit and an insulation pull rod. The discharge capacitor driving circuit is connected with the permanent magnetic mechanism. The high-voltage synchronous vacuum contactor further comprises a synchronous controller, a voltage sensor used for sensing voltage signals and a contact movement sensor used for monitoring movement conditions of a contact, the synchronous controller is respectively connected with the voltage sensor, the contact movement sensor, the discharge capacitor driving circuit and an opening/closing signal input end, is used for receiving acquired voltage signal and contact movement speed at real time, and controls discharge current of the discharge capacitor driving circuit after receiving control information received by the opening/closing signal input end so as to adjust movement speed of the permanent magnetic mechanism at real time. The high-voltage synchronous vacuum contactor can adjust contact movement speed according to wave form of voltage and closing and opening requirements, and leads zero-crossing switching of switch voltage to be more accurate, thereby achieving a high-precision stable phase selection opening and closing function.
Description
Technical field
The utility model relates to a kind of high-pressure vacuum contactor, the especially a kind of synchronous vacuum contactor of high pressure that can control vacuum bubbles moving contact motion conditions.
Background technology
High voltage connector is applied to the switching of capacitor group in the reactive power compensator and the switching of high-voltage motor.Present major product is electromagnetic type contactor and permanent-magnet type contactor.The electromagnetic type contactor mainly comprises electromagnet, vacuum bubbles, insulated tension pole, divide-shut brake relay and linkage etc., its operation principle is for after receiving the divide-shut brake signal, the divide-shut brake relay is connected electromagnet and is come drive link mechanism, the solenoid actuated linkage is to be used for driving moving contact in the insulated tension pole pulling vacuum bubbles to realize the action of divide-shut brake, and keep switching on, make electromagnet remain unchanged, thereby make moving contact and fixed contact keep "on" position the active force of moving contact.The permanent-magnet type contactor mainly is made up of permanent magnet mechanism, linkage, vacuum bubbles, discharge capacity drive circuit, insulated tension pole, its operating principle is after contactor is received the divide-shut brake signal, open discharge circuit by discharge capacity drive circuit (the discharge capacity drive circuit is to be used for providing power supply for permanent magnet mechanism), and then the driving permanent magnet mechanism moves, the permanent magnet mechanism motion is meant its drivening rod mechanism with the moving contact in the driving insulated tension pole pulling vacuum bubbles, and then realizes the divide-shut brake action.The characteristics of above-mentioned two kinds of contactors be vacuum bubbles dynamic/static contact deciliter be at random, can not intelligence control.
In actual application, the breaking-closing operating process of high voltage connector (switch) generally is accompanied by transition effect, produces higher overvoltage and shoves.Because the closing of above-mentioned contactor, separating brake phase place are at random; thereby overvoltage is even more serious with the phenomenon of shoving; thereby the performance to power system operation and electric equipment is brought negative effect; be embodied in: the minimizing in electric equipment life-span; the insulation breakdown of electric equipment, fault and damage; the malfunction of relaying protection, the electronic control component malfunction on secondary limit, the reduction of the quality of power supply etc.
The utility model content
The utility model provides a kind of can control the synchronous vacuum contactor of the cephalomotor high pressure of vacuum bubbles movable contact on suitable opportunity.
The synchronous vacuum contactor of the high pressure that the utility model provides, comprise permanent magnet mechanism, linkage, vacuum bubbles, discharge capacity drive circuit, insulated tension pole, also comprise a synchronous controller, be used for sensing voltage voltage of signals inductor and be used to monitor the contact motion sensor of contact motion conditions.Isochronous controller connects voltage sensor, contact motion sensor, discharge capacity drive circuit and branch/switching signal input respectively, be used for receiving in real time voltage signal and the contact movement velocity that collects, after receiving the control information that branch/the switching signal input sends, control the discharging current of described discharge capacity drive circuit again, adjust the movement velocity of permanent magnet mechanism in real time.
Optimally, permanent magnet mechanism adopts the voice coil loudspeaker voice coil permanent magnet mechanism.The voice coil loudspeaker voice coil permanent magnet mechanism adopts circular rubidium iron boron magnetic circuit, is equipped with voice coil loudspeaker voice coil and combined floodgate maintainance block
Optimally, voltage sensor adopts resistor-type.
More preferably, the contact motion sensor passes to isochronous controller with signal of telecommunication impulse form.
In addition, voice coil loudspeaker voice coil permanent magnet mechanism, insulated tension pole, vacuum bubbles, voltage sensor, contact pressure spring and device thereof, insulating support and the contact motion sensor made with resin material connect on an axis successively.
Wherein, the voice coil loudspeaker voice coil permanent magnet mechanism comprises circular rubidium iron boron magnetic circuit, voice coil loudspeaker voice coil parts and combined floodgate maintainance block; Described voltage sensor adopts resistance type sensor; The contact motion sensor is the electric pulse transducer.
Isochronous controller mainly comprises host CPU, host CPU adopts the sixteen bit processor chips, by to the collection of line voltage signal and the monitoring of contact movement velocity, by calculating, adjust the open angle of power MOSFET in the discharge circuit in real time, and then the discharging current of control capacitance, to realize adjusting in real time the movement velocity of voice coil loudspeaker voice coil permanent magnet mechanism, the final control that realizes for the contact movement velocity.
The utility model adopts the advantage of simultaneous operation technical scheme to be: reduce shoving and overvoltage of closing operation; Improve the stability of the quality of power supply and system; Prolong the useful life and the time between overhauls(TBO) of system equipment; Transient process in the shortening system; Improve the breaking capacity of switch.Simultaneously, the permanent magnet mechanism that the utility model adopts highly sensitive, the control of controller collection, measurement function makes that the switching speed of contactor of the present utility model is fast, is active in one's movements accurately, because entire mechanism does not have wear-out part, so its life-span is long, and is non-maintaining.Use of the present utility model will make the application technology of high pressure primary equipment attain a new height, and have economic benefit widely.
Description of drawings
Fig. 1 is a topology example schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
The synchronous vacuum contactor of the high pressure that the utility model provides, comprise permanent magnet mechanism, linkage, vacuum bubbles, discharge capacity drive circuit, insulated tension pole, also comprise a synchronous controller, be used for sensing voltage voltage of signals inductor and be used to monitor the contact motion sensor of contact motion conditions.Existing permanent-magnet type contactor mainly is to comprise permanent magnet mechanism, linkage, vacuum bubbles, the discharge capacity drive circuit, insulated tension pole, described discharge capacity drive circuit connects permanent magnet mechanism, isochronous controller connects voltage sensor respectively, the contact motion sensor, discharge capacity drive circuit and branch/switching signal input, be used for receiving in real time voltage signal and the contact movement velocity that collects, after receiving the control information that branch/the switching signal input sends, control the discharging current of discharge capacity drive circuit again, adjust the movement velocity of permanent magnet mechanism in real time.
That is to say, after isochronous controller is received switching signal, open angle according to power MOSFET in voltage signal that collects and the contact movement velocity adjustment discharge capacity, and then the driving permanent magnet mechanism moves, its drivening rod mechanism of permanent magnet mechanism is to drive the moving contact in the insulated tension pole pulling vacuum bubbles, and then the realization feed motion, realize feed motion when reaching voltage as far as possible and be zero.In like manner, receive separating brake instruction after, its operating principle and close a floodgate similar, realization sub-switching operation when reaching voltage as far as possible and being zero.
See also Fig. 1, it is the of the present utility model one concrete topology example figure that implements.
The utility model comprises that inlet wire busbar 1 and outlet conductive bus bar 17, insulating support 2 and 6, vacuum bubbles 3, contact pressure buffer gear 4, insulated tension pole 5, power transmission shaft 7, contact motion sensor 8, audio frequency permanent magnet mechanism 9, closing position clamping block 10, isochronous controller 11, lead 12 and 13, separating brake keep spring 14 and resistor-type voltage sensor 15 and lead 16 thereof.Wherein, insulating support 2 and 6, resistor-type voltage sensor 15, inlet wire busbar 1, vacuum bubbles 3, contact pressure buffer gear 4, outlet conductive bus bar 17, power transmission shaft 7, separating brake keep spring 14, contact motion sensor 8, voice coil loudspeaker voice coil permanent magnet mechanism 9 and closing position clamping block 10 to connect on an axis successively.
Wherein, voice coil loudspeaker voice coil permanent magnet mechanism 9 comprises circular rubidium iron boron magnetic circuit, voice coil loudspeaker voice coil parts and combined floodgate maintainance block; Voltage sensor 15 adopts resistance type sensor; Contact motion sensor 8 is electric pulse transducers; Isochronous controller 11 comprises host CPU, line voltage signal Acquisition Circuit, divide-shut brake command signal input circuit, control power supply, discharge capacity and discharge control circuit and contact movement velocity signal acquisition circuit.
When the utility model is received reclosing command, controller 11 comes the time of voltage zero-cross time and mechanism kinematic needs is calculated by the signal that reads voltage sensor 15, give voice coil loudspeaker voice coil permanent magnet mechanism 9 by lead 12 with switching current then, voice coil loudspeaker voice coil permanent magnet mechanism 9 is under the effect of switching current, interaction by its internal magnetic field, produce the thrust of combined floodgate direction, the movement velocity that starts 8 pairs of power transmission shafts 7 of contact motion sensor simultaneously detects, and in real time according to movement velocity and zero point needs constantly adjust the movement velocity of power transmission shaft 7, thereby adjust the movement velocity of the moving contact of vacuum bubbles 3, close a floodgate when being implemented in voltage and being zero.
The utility model is received separating brake when instruction, and its operating principle and similar when closing a floodgate, but the sense of current that voice coil loudspeaker voice coil permanent magnet mechanism 9 is received is opposite when closing a floodgate, moving contact are realized synchronous separating brake according to the calculating time well under the drive of voice coil loudspeaker voice coil permanent magnet mechanism 9.
The utility model can be noted the move distance of divide-shut brake each time by contact motion sensor 8, and carries out synchronous divide-shut brake according to this distance next time and calculate when moving, and has therefore realized the self-compensating of contact burning.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop in protection scope of the present invention.
Claims (5)
1. synchronous vacuum contactor of high pressure, comprise permanent magnet mechanism, linkage, vacuum bubbles, the discharge capacity drive circuit, insulated tension pole, described discharge capacity drive circuit connects permanent magnet mechanism, it is characterized in that, also comprise a synchronous controller, be used for sensing voltage voltage of signals inductor and the contact motion sensor that is used to monitor the contact motion conditions, described isochronous controller connects voltage sensor respectively, described contact motion sensor, described discharge capacity drive circuit and branch/switching signal input, be used for receiving in real time voltage signal and the contact movement velocity that collects, after receiving the control information that branch/the switching signal input sends, control the discharging current of described discharge capacity drive circuit again, adjust the movement velocity of permanent magnet mechanism in real time.
2. vacuum contactor as claimed in claim 1 is characterized in that, described permanent magnet mechanism adopts the voice coil loudspeaker voice coil permanent magnet mechanism.
3. vacuum contactor as claimed in claim 1 is characterized in that, voltage sensor adopts resistor-type.
4. vacuum contactor as claimed in claim 1 is characterized in that, described contact motion sensor passes to described isochronous controller with signal of telecommunication impulse form.
5. vacuum contactor as claimed in claim 2, it is characterized in that, it also comprises the contact pressure buffer gear, and voice coil loudspeaker voice coil permanent magnet mechanism, insulated tension pole, vacuum bubbles, voltage sensor, contact pressure buffer gear, insulating support and contact motion sensor connect on an axis successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069452XU CN201503804U (en) | 2009-03-26 | 2009-03-26 | High-voltage synchronous vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069452XU CN201503804U (en) | 2009-03-26 | 2009-03-26 | High-voltage synchronous vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503804U true CN201503804U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920069452XU Expired - Fee Related CN201503804U (en) | 2009-03-26 | 2009-03-26 | High-voltage synchronous vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503804U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065864A (en) * | 2013-01-25 | 2013-04-24 | 大连理工大学 | Novel gas circuit breaker with real-time adjustable air pressure |
| CN104201048A (en) * | 2014-09-13 | 2014-12-10 | 安徽鑫龙电器股份有限公司 | Transmission mechanism of vacuum circuit breaker |
| CN106712278A (en) * | 2017-01-25 | 2017-05-24 | 广东光达电气有限公司 | Dual-power supply fast change-over switch |
| CN108288563A (en) * | 2016-08-21 | 2018-07-17 | 安溪县中磊设备制造有限公司 | A kind of breaker and its working method |
| CN113359019A (en) * | 2021-04-27 | 2021-09-07 | 西安交通大学 | High-voltage alternating-current on-off test system based on signal generator triggering |
| US11145470B2 (en) | 2017-08-29 | 2021-10-12 | Abb Schweiz Ag | Motor-driven vacuum circuit breaker |
-
2009
- 2009-03-26 CN CN200920069452XU patent/CN201503804U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065864A (en) * | 2013-01-25 | 2013-04-24 | 大连理工大学 | Novel gas circuit breaker with real-time adjustable air pressure |
| CN104201048A (en) * | 2014-09-13 | 2014-12-10 | 安徽鑫龙电器股份有限公司 | Transmission mechanism of vacuum circuit breaker |
| CN108288563A (en) * | 2016-08-21 | 2018-07-17 | 安溪县中磊设备制造有限公司 | A kind of breaker and its working method |
| CN106712278A (en) * | 2017-01-25 | 2017-05-24 | 广东光达电气有限公司 | Dual-power supply fast change-over switch |
| CN106712278B (en) * | 2017-01-25 | 2024-01-30 | 广东光达电气有限公司 | Dual-power supply fast switching switch |
| US11145470B2 (en) | 2017-08-29 | 2021-10-12 | Abb Schweiz Ag | Motor-driven vacuum circuit breaker |
| CN113359019A (en) * | 2021-04-27 | 2021-09-07 | 西安交通大学 | High-voltage alternating-current on-off test system based on signal generator triggering |
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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: 20100609 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |