CN2859891Y - Automatic low-voltage reactive compensator - Google Patents
Automatic low-voltage reactive compensator Download PDFInfo
- Publication number
- CN2859891Y CN2859891Y CNU2005200526136U CN200520052613U CN2859891Y CN 2859891 Y CN2859891 Y CN 2859891Y CN U2005200526136 U CNU2005200526136 U CN U2005200526136U CN 200520052613 U CN200520052613 U CN 200520052613U CN 2859891 Y CN2859891 Y CN 2859891Y
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- Prior art keywords
- interface
- connects
- control module
- cpu
- reactive power
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Classifications
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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
The utility model relates to an automatic low-voltage reactive compensator used in the low-voltage rationing-electricity control for processing the reactive power automatic tracking compensation to make the power factor automatically stabilize between the 0.9 to 1, including a screen frame, a panel, a deck plate (1) fixed on the screen frame plate, wherein the deck plate (1) has a CPU, and the control module is connected to the CPU by the data line, with the periphery connected to a data mobile hard disk (8), a LCD screen (5), a touch key (6), a card meter (3), a series communication interface (4) and a contact-free switch (11) in the multi-path reactive compensating loop. The contact-free switch (11) is connected to the three-phase power capacitor group (12); a reactor (10) and an infrared sensor (13) is respectively installed on each capacitor. The utility model has complete function, high precision, high automation degree, friend man-machine conversation interface, and realizes the telecommunication.
Description
Technical field
The utility model belongs to a kind of reactive power compensator of perceptual load circuit, is used in particular for carrying out the reactive power automatic tracking and compensating in the low-voltage distribution control, makes the low-voltage reactive power automatic compensation device of power factor automatic stabilisation between 0.9-1.
Background technology
Along with the development of electrical production, more and more higher to the requirement of mains supply, show that mainly the requirement of distribution certainty of measurement is more and more higher, the index of monitoring is also more and more.Analyze the existing similar low-voltage reactive power automatic compensation device of producing both at home and abroad, they exist following weak point mostly: function is incomplete, low precision, and automaticity is low, and the compensation response time is slow.China utility model patent ZL 98223360.4 once disclosed a kind of automatic dynamic reactive power compensator, adopt industrial monolithic computer to detect and control, can detect best the opening and shutting off of point and control speed-sensitive switch of dropping into automatically, improve the compensation response time.But its reactive power compensation control loop few (only three groups of building-out capacitors), it is single to exist the compensation way performance, the dumb easy shortcoming such as benefit phenomenon that produced of compensation control; And lack man-machine dialog interface, the industrial monolithic computer data acquisition rate that is adopted is low, and capacity is little, and deal with data can not be intelligent; Can not realize telecommunication.
Summary of the invention
Goal of the invention of the present utility model:
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and the low-voltage reactive power automatic compensation device that a kind of function is more complete, precision is high, automaticity is high is provided.Have that two-forty, big capacity are gathered in real time and intelligently handle the number a tree name, can realize function such as telecommunication; Adopt multiloop reactive power compensation control, the scope of compensation strengthens, and the man-machine dialog interface close friend is easy to use, cost is low.
The technical scheme that the utility model adopted is:
A kind of low-voltage reactive power automatic compensation device, comprise screen frame, panel, be fixed on the machine core board on the screen frame panel, there are central authorities to handle CPU, control module, Switching Power Supply plate and interface card and connecting line in the machine core board, control module connects central authorities by data wire and handles CPU, the periphery of the processing CPU of central authorities connects the pin-saving chip of control module, real-time clock and 1M Byte, from the voltage signal of major loop sampling, and the current signal by the current transformer sampling directly connects central authorities through the A/D digital-to-analogue conversion and handles CPU; The Switching Power Supply plate connects major loop by the three-phase interlock switch; Monitor signal interface, USB interface, RS-232/RS-485 communication control interface, Keyboard Control interface, reactive power compensation interface and video card are arranged on the control module; Its USB interface connects a data portable hard drive that is used for image data; Communication control interface connects far infrared meter-copy device or cassette meter-copy device, and the serial communication interface of supporting GPRS module telecommunication system is arranged in the RS-232/RS-485 communication control interface; Described reactive power compensation interface connects the noncontacting switch in the multichannel reactive power compensation loop, and this noncontacting switch is positioned at major loop, connects the three-phase power capacitor group of self-healing metallized polypropylene film medium; Install reactor and infrared sensor respectively additional at every capacitor, infrared sensor is connected on the monitor signal interface; Described Keyboard Control interface is mounted on the conduction glass film touch key-press that shields on the frame panel by winding displacement; Described control module connects a big LCD LCDs that is installed on the screen frame panel by video card, connecting line.
Technique effect of the present utility model:
1, the utility model adopts the three-phase power capacitor of the self-healing metallized polypropylene film medium of domestic and international renowned company production.Each capacitance group adopts infrared electronic technology, discerns fault electric capacity automatically and excises automatically.Have the fault automatic protection functions, after electrical network breaks down or has a power failure, withdraw from electrical network automatically, can resume operation automatically behind fault eliminating or the incoming call.
2, adopt three-phase interlocking technology on the power panel, under three phase supply phase shortage situation, can guarantee the utility model operate as normal.
3, adopt the LCD LCDs dynamically to show: capacitance group switching state, parameters such as hysteresis leading phase angle, power factor, voltage, electric current, reactive power, active power, apparent power, mutual inductor ratio, idle thresholding, switching time-delay, overvoltage thresholding.
4, the utility model has the RS-232C/RS-485 communication interface, has disposed the GPRS communication module, supports the IEC-101 Standards Code, can realize online programming; Also can form an electric power monitoring system larger, that function is more complete by networking mode.
5, selected USB mechanics of communication and the data portable hard drive acquisition technique of the utility model, compare have the communication speed height, memory capacity is big, volume little easy to carry, need not powered battery, can be hot-swappable, handling safety, advantage that cost is low.
Description of drawings
Fig. 1 is a circuit structure schematic diagram of the present utility model.
In the accompanying drawing: 1 machine core board; 2 far infrared meter-copy devices; 3 cassette meter-copy devices; 4 serial communication interfaces; 5 big LCD LCDs; 6 conduction glass film touch key-presss; 7 current transformers; 8 data portable hard drives; 9 on-load switches; 10 reactors; 11 noncontacting switches; 12 three-phase power capacitor groups; 13 infrared sensors.
Embodiment
The utility model is described in more detail with concrete execution mode below in conjunction with accompanying drawing:
It shown in the accompanying drawing a kind of low-voltage reactive power automatic compensation device, comprise screen frame, panel, be fixed on the machine core board 1 on the screen frame panel, there are central authorities to handle CPU, control module, Switching Power Supply plate and interface card and connecting line in the machine core board 1, control module connects central authorities by data wire and handles CPU, the periphery of the processing CPU of central authorities connects the pin-saving chip of control module, real-time clock and 1M Byte, from the voltage signal of major loop sampling, and the current signal by current transformer 7 samplings directly connects central authorities through the A/D digital-to-analogue conversion and handles CPU; The Switching Power Supply plate connects major loop by the three-phase interlock switch, and it can guarantee, and bio-occlusion monolithic computer mainboard provides under the situation of three phase mains phase shortage+12V ,+5V ,-the 5V direct current.
Monitor signal interface, USB interface, RS-232/RS-485 communication control interface, Keyboard Control interface, reactive power compensation interface and video card are arranged on the control module; Its USB interface connects a data portable hard drive 8 that is used for image data; Communication control interface connects far infrared meter-copy device 2 or cassette meter-copy device 3, and the serial communication interface 4 of supporting GPRS module telecommunication system is arranged in the RS-232/RS-485 communication control interface, and the IEC-101 Standards Code is supported in the serializable communication, can realize online programming; Communication control interface can be formed an electric power monitoring system larger, that function is more complete by networking mode; Described reactive power compensation interface connects the noncontacting switch 11 in the multichannel reactive power compensation loop, this noncontacting switch 11 is positioned at major loop, the three-phase power capacitor group 12 that connects self-healing metallized polypropylene film medium, this three-phase power capacitor divides into groups by the capacity of grade, in order the grouping switching of switching mode or coding switching mode; Install reactor 10 and infrared sensor 13 respectively additional at every capacitor, infrared sensor 13 is connected on the monitor signal interface; Also be connected to on-load switch 9 on the major loop.Described Keyboard Control interface is mounted on the conduction glass film touch key-press 6 that shields on the frame panel by winding displacement; Described control module connects a big LCD LCDs 5 that is installed on the screen frame panel by video card, connecting line.
The main performance index of the execution mode that this is concrete is:
Working power: three-phase alternating current 400V ± 20%/50HZ
Voltage range: 0.85Uc～1.15Uc
Voltage sampling: three-phase voltage
Current sampling: three-phase current
Delay time: 90S (adjustable)
Drop into thresholding: 0.92 hysteresis (adjustable)
Excision thresholding: 0.98 leading (adjustable)
Ambient temperature :-25 ℃～+ 70 ℃
Store transport temperature :-40～85 ℃
Relative humidity＜90%RH
Height above sea level :≤2000m
Compensation way: phase splitting compensation/three-phase is mended/comprehensive compensation altogether
Communication: serial port: RS485/RS232
Communication protocol: IEC60870-5-101/MODBUS/DNP3.0
Dielectric strength: meet IEC255-5 standard 2.0KV/50Hz/1min
Insulation resistance: meet IEC255-5 standard 100M Ω/500V
Electromagnetic compatibility: impulse train: 2 grades of IEC255-22-1 standards
Radiation field: 2 grades of IEC60255-22-3 standards
Static discharge: 3 grades of IEC255-22-2 standards
Gradation for surface pollution: IV level
Installation site: the place except that places such as fire, blast, water logging, extensive chemical corrosion.
Degree of protection: IP33
Claims (1)
1, a kind of low-voltage reactive power automatic compensation device, comprise screen frame, panel, be fixed on the machine core board (1) on the screen frame panel, there are central authorities to handle CPU, control module, Switching Power Supply plate and interface card and connecting line in the machine core board (1), control module connects central authorities by data wire and handles CPU, it is characterized in that: the periphery of the processing CPU of central authorities connects the pin-saving chip of control module, real-time clock and 1M Byte, from the voltage signal of major loop sampling, and directly connect the processing CPU of central authorities through the A/D digital-to-analogue conversion by the current signal of current transformer (7) sampling; The Switching Power Supply plate connects major loop by the three-phase interlock switch; Monitor signal interface, USB interface, RS-232/RS-485 communication control interface, Keyboard Control interface, reactive power compensation interface and video card are arranged on the control module; Its USB interface connects a data portable hard drive (8) that is used for image data; Communication control interface connects far infrared meter-copy device (2) or cassette meter-copy device (3), and the serial communication interface (4) of supporting GPRS module telecommunication system is arranged in the RS-232/RS-485 communication control interface; Described reactive power compensation interface connects the noncontacting switch (11) in the multichannel reactive power compensation loop, and this noncontacting switch (11) is positioned at major loop, connects the three-phase power capacitor group (12) of self-healing metallized polypropylene film medium; Install reactor (10) and infrared sensor (13) respectively additional at every capacitor, infrared sensor (13) is connected on the monitor signal interface; Described Keyboard Control interface is mounted on the conduction glass film touch key-press (6) that shields on the frame panel by winding displacement; Described control module connects a big LCD LCDs (5) that is installed on the screen frame panel by video card, connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200526136U CN2859891Y (en) | 2005-11-28 | 2005-11-28 | Automatic low-voltage reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200526136U CN2859891Y (en) | 2005-11-28 | 2005-11-28 | Automatic low-voltage reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859891Y true CN2859891Y (en) | 2007-01-17 |
Family
ID=37612748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200526136U Expired - Fee Related CN2859891Y (en) | 2005-11-28 | 2005-11-28 | Automatic low-voltage reactive compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859891Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169762A (en) * | 2016-07-18 | 2016-11-30 | 安徽得润电气技术有限公司 | A kind of low-voltage reactive power automatic compensation device under multiloop the control of reactive power compensating |
| CN113625944A (en) * | 2021-06-25 | 2021-11-09 | 济南浪潮数据技术有限公司 | Disaster recovery method and system based on multipath and remote copy technology |
-
2005
- 2005-11-28 CN CNU2005200526136U patent/CN2859891Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169762A (en) * | 2016-07-18 | 2016-11-30 | 安徽得润电气技术有限公司 | A kind of low-voltage reactive power automatic compensation device under multiloop the control of reactive power compensating |
| CN113625944A (en) * | 2021-06-25 | 2021-11-09 | 济南浪潮数据技术有限公司 | Disaster recovery method and system based on multipath and remote copy technology |
| CN113625944B (en) * | 2021-06-25 | 2024-02-02 | 济南浪潮数据技术有限公司 | Disaster recovery method and system based on multipath and remote replication technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |