CN2874887Y - Intelligent power saving device - Google Patents
Intelligent power saving device Download PDFInfo
- Publication number
- CN2874887Y CN2874887Y CNU2006200078045U CN200620007804U CN2874887Y CN 2874887 Y CN2874887 Y CN 2874887Y CN U2006200078045 U CNU2006200078045 U CN U2006200078045U CN 200620007804 U CN200620007804 U CN 200620007804U CN 2874887 Y CN2874887 Y CN 2874887Y
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- CN
- China
- Prior art keywords
- voltage
- load
- over
- circuit
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Ac-Ac Conversion (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses an intelligent energy-saving device, which comprises autotransformer connected between three-phase power supply and load; power supply system detection circuit respectively connected with voltage detection device of the three-phase power supply and over-current detection device of the load, and used for outputting control signal to main control circuit connected with its output end after receiving under-voltage, over-voltage or over-current signal; the main control circuit connected with control end of the autotransformer via voltage-regulating circuit; and bypass circuit connected between the three-phase power supply and load, and capable of being switched on by the main control circuit connected with it under situation of under-voltage, over-voltage or over-current. The utility model can solve the problems of existing energy-saving equipments, including harmonic pollution, poor energy-saving effect, and power interruption caused by load variation and self failure.
Description
Technical field
The utility model relates to a kind of electricity-saving appliance.
Background technology
Traditional electricity-saving appliance function ratio is more single, and their ubiquities following shortcoming:
1 energy-saving device is big from loss, and actual power savings is not good.
2 service life of equipments are short: it is short useful life that ubiquity Device Host, usually useful life less than 10 years.Difficult in maintenance.
3 do not possess three-phase independently adjusts function: lighting load all is individual event loads, so must independently adjust the single-phase voltage of its each phase, imbalance of three-phase voltage causes zero-sequence current excessive, null offset, and line loss increases.
4 do not possess the three-phase inspection function: can not effectively gather the electric power system parameter; can't ensure the security of operation of electric power system: can not carry out in real time effectively acquisition monitoring to the parameters of electric power system; do not possess effective safety precautions; in case system takes place unusual; to cause equipment burnout, and cause the electric power system power outage.
5 electric fittings failure rate height: the loss of control section accessory is big, has brought inconvenience to applying unit.
6 electromagnetic interference: current, it is over and done with only to be that the key player on a team is involved epoch of ripple in the world, in the modern architecture, it nearly all is electronic equipment, computer, converter plant, Electronic Control lighting device etc., these loads overwhelming majority is a nonlinear load, all is the generation source of harmonic wave, these harmonic currents flow into public electric wire net will pollute electrical network, thereby power consumption equipment can't normally be moved.
Summary of the invention
The purpose of this utility model provides a kind of intelligent energy-saving device, can produce harmonic pollution to solve existing energy-saving device, and power savings is poor, can cause problems such as outage when electricity consumption load variations and energy-saving device itself break down.
Intelligent energy-saving device described in the utility model comprises:
Be connected the autotransformer between three phase mains and the load;
The electric power system testing circuit that is connected with the overcurrent detecting device of the detection voltage device of three phase mains, load respectively, this circuit is after receiving under-voltage, overvoltage, over-current signal, to the governor circuit output control signal that is connected with its output;
The governor circuit that is connected with the autotransformer control end by voltage regulator circuit;
Be connected the bypass circuit between three phase mains and the load, this bypass circuit is when under-voltage, overvoltage, overcurrent, by connected governor circuit control conducting.
The utlity model has following advantage:
1. efficient height is greater than 25%.
2. loss is low, no-load loss＜2 ‰: at present, and Xian Jin energy saving transformer device in the world, the no-load loss index is 2 ‰～8 ‰, and domestic transformer index is generally 15%～30%, and we then are about 1.7 ‰ by employed main computer unit voltage-regulating system, reach the international leading level.
3. low, the excellent insulation performance of energy-saving device temperature rise is prolonged the useful life of equipment expropriation of land greatly, and useful life is more than 50 years.
4. have the single-phase independent function of adjusting, can adjust the three-phase voltage balance, can guarantee that three-phase electricity consumption loaded work piece is normal.Thoroughly solved because imbalance of three-phase voltage causes zero-sequence current excessive, null offset, problems such as supply line's loss increase.
5. inspection function: overload, under-voltage, overcurrent, the full-automatic bypass of excess temperature, the security of operation of protection electric power system.
6. surge protective device can be reduced to transition, surge, harmonic wave etc. within the scope of being permitted, with support equipment safety, reliability service.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Embodiment
Intelligent energy-saving device of the present utility model comprises: electric power system testing circuit, high-performance single-circuit transformer, voltage-regulating circuit, bypass circuit (being divided into auto by pass and manual bypass) and main control circuit.Respectively with power supply be connected with electric loading, can be according to electric power system and with the concrete condition of electric loading, by the electric power system testing circuit, three-phase is patrolled and examined and is regulated A, B, C three-phase respectively, and can carry out single-phase independent the adjustment.Make voltage keep optimum state, make electric power system be operated in optimum state.Effectively reduce the load energy consumption, and prolong its useful life.
The operation principle of foregoing circuit is described below:
Under-voltage auto by pass function: when input voltage is lower than set point, system's auto by pass, promptly net electricity is straight-through, treat input voltage recover normal after, system automatically resets, system restoration is an electricity-saving state.
Overload auto by pass function: when the operating current of any phase in the A of supply line, B, the C three-phase surpassed set point, system was with auto by pass, and promptly the net electricity is straight-through, and buzzer warning or indicator light are glittering; But hand-reset after inspection, system restoration are electricity-saving state; Ensure the energy-saving device security of operation, can avoid the generation of power outage effectively.
Be that the load voltage that is picked up according to the electric power system testing circuit by governor circuit is by the output of voltage-regulating circuit control autotransformer, to play the effect of regulated output voltage in rational voltage range.
Claims (1)
1, a kind of intelligent energy-saving device is characterized in that it comprises:
Be connected the autotransformer between three phase mains and the load;
The electric power system testing circuit that is connected with the overcurrent detecting device of the detection voltage device of three phase mains, load respectively, this circuit is after receiving under-voltage, overvoltage, over-current signal, to the governor circuit output control signal that is connected with its output;
The governor circuit that is connected with the autotransformer control end by voltage regulator circuit;
Be connected the bypass circuit between three phase mains and the load, this bypass circuit is when under-voltage, overvoltage, overcurrent, by connected governor circuit control conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200078045U CN2874887Y (en) | 2006-03-08 | 2006-03-08 | Intelligent power saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200078045U CN2874887Y (en) | 2006-03-08 | 2006-03-08 | Intelligent power saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874887Y true CN2874887Y (en) | 2007-02-28 |
Family
ID=37781476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200078045U Expired - Fee Related CN2874887Y (en) | 2006-03-08 | 2006-03-08 | Intelligent power saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874887Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683295A (en) * | 2013-11-26 | 2014-03-26 | 广东电网公司肇庆供电局 | Voltage regulating device of power distribution network |
| CN109886612A (en) * | 2019-04-25 | 2019-06-14 | 威海智拓节能科技有限公司 | A kind of online energy conservation verifying system and method for high-low pressure |
-
2006
- 2006-03-08 CN CNU2006200078045U patent/CN2874887Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683295A (en) * | 2013-11-26 | 2014-03-26 | 广东电网公司肇庆供电局 | Voltage regulating device of power distribution network |
| CN103683295B (en) * | 2013-11-26 | 2016-08-24 | 广东电网公司肇庆供电局 | Power distribution network regulator |
| CN109886612A (en) * | 2019-04-25 | 2019-06-14 | 威海智拓节能科技有限公司 | A kind of online energy conservation verifying system and method for high-low pressure |
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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: 20070228 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |