CN201204459Y - Intelligent multi-bench control low-voltage automatic reactive compensator - Google Patents
Intelligent multi-bench control low-voltage automatic reactive compensator Download PDFInfo
- Publication number
- CN201204459Y CN201204459Y CNU200820011974XU CN200820011974U CN201204459Y CN 201204459 Y CN201204459 Y CN 201204459Y CN U200820011974X U CNU200820011974X U CN U200820011974XU CN 200820011974 U CN200820011974 U CN 200820011974U CN 201204459 Y CN201204459 Y CN 201204459Y
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- capacitor
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- compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
An intelligent multi control low-voltage auto reactive compensators, comprising a low-voltage powerless automatic compensating controller and multi capacitor cabinets with a plurality of built-in compensation capacitor branches, wherein combination switches are connected in series in each compensation capacitor branch, a transfer switch is connected to the low-voltage powerless automatic compensating controller, one output terminal of the transfer switch is connected with the combination switch in one capacitor cabinet, and another output terminal of the transfer switch is connected with an intermediate relay, the normally open contact of the intermediate relay is connected with combination switches of other capacitor cabinets. The device has small impact on electric network, small wattless loss, low power and no waveform distortion; can realize conversion at will between single and multi compensate cabinets, thereby reducing the cost and enhancing power factor of electric network, having small volume and high compensation precision.
Description
Technical field
The utility model relates to a kind of low-voltage reactive power automatic compensation device, particularly a kind of intelligent many control low pressure auto-reactive compensation devices.
Background technology
Low-voltage reactive power automatic compensation device in the past adopts the low-voltage reactive power automatic compensation controller, carries out switching by contactor.Can produce very big impulse current like this, electrical network is caused interference; Because switched capacitor moment main noddle on contactor arcing phenomenon causes the main noddle on contactor scaling loss, influences the normal operation of reactive power compensator; Because the contactor responsiveness is slower, and the life-span is limited, so be not suitable for the occasion that needs quick frequent switching compensation condenser.
In recent years, adopted low-voltage reactive power automatic compensation controller and preferably resolve the problem that exists with contactor switching reactive-load compensation capacitor device by the thuristor throw-in and throw-off compensating capacitor device.Because thyristor is noncontacting switch, its useful life can be very long, and the input of thyristor can accurately control constantly, can accomplish shock-free fast building-out capacitor to be inserted electrical network, greatly reduces the impact to electrical network, protected compensation condenser.But there are two subject matters in thyristor, first power problems, because a constant pressure drop is arranged during the thyristor conducting, can produce big active loss so work long hours, the heat that produces needs to solve the ventilation and heat problem with fan maybe to be needed to reduce the thyristor temperature with cooling water system, make device increase cost like this, floor space is big; It two is that the intermodulation distortion phenomenon of thyristor causes the current waveform distortion, produces harmonic current, and the capacitor spoilage is increased.
In addition, existing low-voltage reactive power automatic compensation device is that capacitor is divided into several roads switching, and there is one or more capacitor on every road, utilizes the control of low-voltage reactive power automatic compensation controller, according to voltage priority principle, switched capacitor successively.When every road had many capacitors, switching platform number can not be adjusted at any time, if the less easy benefit phenomenon that produced of load causes harmful effect to electrical network.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, providing a kind of impacts little to electrical network, reduce reactive loss, power is low, have no waveform distortion, can reduce cost, improve the power factor of electrical network, intelligent many control low pressure auto-reactive compensation devices that volume is little and compensation precision is high.
The utility model be achieved in that it have a low-voltage reactive power automatic compensation controller and a plurality of in establish the capacitor panel of compensation condenser branch road, its special character is: be in series with combination switch in each compensation condenser branch road, output at the low-voltage reactive power automatic compensation controller is connected to change over switch, output of described change over switch is connected with the combination switch in the capacitor panel, another output of change over switch is connected to auxiliary relay, the normally opened contact of described auxiliary relay respectively with all the other many capacitor panels in corresponding combination switch connect.
This device adopts the low-voltage reactive power automatic compensation controller, according to composite factors such as voltage, electric current, reactive power, power factors, conversion by change over switch, directly control single capacitor or control many capacitors through auxiliary relay, make intelligent combination switch carry out switching, many capacitors of one tunnel triggering signal control have been realized, both can single cabinet switching, again can many cabinets switching, reduce cost, reduced volume, improved the power factor of electrical network, reduce reactive loss, increased economic benefit of enterprises.Building-out capacitor there is not the function of impacting ground input electrical network or disconnecting from electrical network, reduce the interference that impulse current causes electrical network, accelerated switching speed, prolong useful life, reduced reactive loss, avoided the distortion of current waveform, improved the reliability of low-voltage reactive compensator capable, reduced energy loss, made compensation precision reach the highest, circuit keeps optimum state.The fling-cut switch of this device does not have specific (special) requirements to the signal that comes from idle compensating control, relatively is easy to realize, even existing reactive power compensation cabinet is transformed a little can use, so can large tracts of land promote.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in the figure, the utility model have a low-voltage reactive power automatic compensation controller 1 and a plurality of in establish the capacitor panel 2 of compensation condenser branch road, described compensation condenser branch road is the vacuum circuit-breaker QF by series connection, fuse FU, reactor L, combination switch FK, thermal relay KR, capacitor C and current transformer TA and lightning arrester FV constitute, output at low-voltage reactive power automatic compensation controller 1 is connected to change over switch SA, output of described change over switch SA is connected with the combination switch FK in the capacitor panel 2, another output of change over switch SA is connected to auxiliary relay KA, the normally opened contact of described auxiliary relay KA respectively with all the other many capacitor panels 2 in corresponding combination switch FK connect, the quantity of described many capacitor box 2 can be two to three or more.The input of low-voltage reactive power automatic compensation controller 1 is connected the input 3 as these intelligent many control low pressure auto-reactive compensation devices with the input of each compensation condenser branch road.
During connection, the input 3 of this device is connected with the output of switch cubicle.When dropping into capacitor, send signal by low-voltage reactive power automatic compensation controller 1 earlier and give change over switch SA, when load hour forwards change over switch to single capacitor cashier's office in a shop, the signal that low-voltage reactive power automatic compensation controller 1 sends is passed to combination switch FK in the single capacitor cabinet 2 through change over switch SA, after the combination switch FK closure, capacitor C drops into electrical network; When load is big, change over switch SA is forwarded on all the other many capacitor panels 2, the signal that low-voltage reactive power automatic compensation controller 1 sends is passed to auxiliary relay KA, the normally opened contact closure of auxiliary relay KA, promptly according to the design action order, send signal for respectively the combination switch FK in many capacitor panels 2, after the combination switch FK closure, capacitor C drops in the electrical network.
Claims (1)
1, a kind of intelligent many control low pressure auto-reactive compensation devices, comprise a low-voltage reactive power automatic compensation controller and a plurality of in establish the capacitor panel of compensation condenser branch road, it is characterized in that: in each compensation condenser branch road, be in series with combination switch, output at the low-voltage reactive power automatic compensation controller is connected to change over switch, output of described change over switch is connected with the combination switch in the capacitor panel, another output of change over switch is connected to auxiliary relay, the normally opened contact of described auxiliary relay respectively with all the other many capacitor panels in corresponding combination switch connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820011974XU CN201204459Y (en) | 2008-04-01 | 2008-04-01 | Intelligent multi-bench control low-voltage automatic reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820011974XU CN201204459Y (en) | 2008-04-01 | 2008-04-01 | Intelligent multi-bench control low-voltage automatic reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204459Y true CN201204459Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820011974XU Expired - Fee Related CN201204459Y (en) | 2008-04-01 | 2008-04-01 | Intelligent multi-bench control low-voltage automatic reactive compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204459Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867453A (en) * | 2012-03-23 | 2013-01-09 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| WO2018072126A1 (en) * | 2016-10-19 | 2018-04-26 | 周东 | Reliably-operating low-voltage reactive power compensator cabinet |
| CN116722455A (en) * | 2023-08-10 | 2023-09-08 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
-
2008
- 2008-04-01 CN CNU200820011974XU patent/CN201204459Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867453A (en) * | 2012-03-23 | 2013-01-09 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| CN102867453B (en) * | 2012-03-23 | 2014-12-24 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| WO2018072126A1 (en) * | 2016-10-19 | 2018-04-26 | 周东 | Reliably-operating low-voltage reactive power compensator cabinet |
| CN116722455A (en) * | 2023-08-10 | 2023-09-08 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
| CN116722455B (en) * | 2023-08-10 | 2023-11-14 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jinzhou Huadian Capacitor Manufacturing Co., Ltd. Assignor: Jinzhou Huaneng Power Complete Set of Equipment Co.Ltd Contract record no.: 2014210000001 Denomination of utility model: Intelligent multi-bench control low-voltage automatic reactive compensator Granted publication date: 20090304 License type: Exclusive License Record date: 20140106 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jinzhou Huadian Capacitor Manufacturing Co., Ltd. Assignor: Jinzhou Huaneng Power Complete Set of Equipment Co.Ltd Contract record no.: 2014210000001 Denomination of utility model: Intelligent multi-bench control low-voltage automatic reactive compensator Granted publication date: 20090304 License type: Exclusive License Record date: 20140106 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |