CN2899232Y - Loss-descending loading economical phase adjuster - Google Patents
Loss-descending loading economical phase adjuster Download PDFInfo
- Publication number
- CN2899232Y CN2899232Y CNU2006200705446U CN200620070544U CN2899232Y CN 2899232 Y CN2899232 Y CN 2899232Y CN U2006200705446 U CNU2006200705446 U CN U2006200705446U CN 200620070544 U CN200620070544 U CN 200620070544U CN 2899232 Y CN2899232 Y CN 2899232Y
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- Prior art keywords
- phase
- load
- supply end
- power
- loss
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- 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.)
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a loss-descending loading economical phase adjuster, belonging to power-supply establishment technical field, which comprises a three-phase power-supply end, a single-phase power-supply end, in which the three-phase power-supply end is connected with the single-phase power-supply end separately through a first, a second and a third relay constant open touch point, the improvement of which lies in that one of the three-phase power-supply lines is connected separately with a first, a second and a third relay loops through a first, a second and a third control switch. When the load is imbalance in the three phases of the power-supply lines, some phase control switch of the loss-descending loading economical phase adjuster is closed manually or automatically, such that the single-phase load can be loaded to the lower load phase to balance the three phases load, therefore reducing the line loss.
Description
Technical field
The utility model relates to a kind of supply load regulation device, and especially a kind of wastage reducing and energy saving type load phase modulator belongs to the power supply facilities technical field.
Background technology
The applicant further investigation reveals that, during peak of power consumption, and in same place, the user's voltage height that has, the user's voltage that has is low.Often big in these local line losses, equipment is fragile.After the electric network reconstruction, Every household has an ammeter in the town and country implementation, and the user only pays dues according to the electricity charge of own ammeter metering, and the line loss of public low-voltage circuit is born by power supply department.This loss is accumulated considerable, and to reduce the wastage be a significant long-term work so increase income and economize on spending.
In the measure that reduces the low voltage electric network line loss, people have expected a lot of ways, for example strengthen the management of table meter, strengthen the tour dynamics, the trees under the cleaning circuit, even in order to reduce line loss, to prevent stealing, take the way of three-phase electricity, attempt to reduce line loss, miss one's aim in fact at all for the two-phase electricity.
Investigation finds that also it is the main cause that causes line loss that low voltage electric network load secular disequilibrium produces.Become on the distribution line comprehensive, three-phase load is very uneven usually, and the result will cause line loss on the circuit (P=I2R) excessive.In addition, low-voltage supply line long-term load imbalance also causes the power supply unit at electrical node place to damage easily, and reduce the useful lifes such as A.C. contactor in distribution transforming, metering device, control switch, the consumer unit.The measurement of load (electric current, voltage) through to every month peak of power consumption of part distribution transforming and low ebb the time, and the degree of unbalance of statistic record three-phase load, the degree of unbalance that draws three-phase load by analysis if can be controlled in 10% 1 is advisable, at this moment line loss is minimum, and power supply unit can not damage because of single-phase overcurrent again easily.
Aspect electric power system low pressure management of power supply and power utilization, Easier said than done to adjust load.Adjustment in 1 year platform once disappears and reaches 50%, a lot of platforms become the back of coming into operation and go to transfer with regard to the no one, only when peak of power consumption is particularly thorny, just go passive dealing with, reason is that the operation of load adjustment branch line will have a power failure, measure load adjustment on daytime evening and often be out of tune, a large amount of repeated operation of personnel's upper boom.And peak of power consumption particularly thorny the time many during the broiling summer with winter of cold, employee's labor operation amount is big, fatiguability influence safety, and the load of adjusting may fluctuate once to 2 months with user situation 1.
The utility model content
The purpose of this utility model is: at the problem of above prior art existence, improve by control supply line, propose a kind of can be by the wastage reducing and energy saving type load phase modulator of load switching controls regulation and control part individual event load, thereby reach wastage reducing and energy saving, reduce the purpose that single-phase overload causes device damage.
The applicant finds after deliberation, and a certain moment circuit user side needs a quantitative electric current K, when quantitative electric current K flow through one mutually or its line loss of two-phase (I2U+I2V+I2W) R be far longer than three-phase load line loss 3I2R near balance.Three-phase load tends to balance more, and electric current is more little on the neutral line, and line loss P=(I2U+I2V+I2W) R+I2NR is also just more little on the circuit, therefore manages to adjust load, and balanced balanced current voltage just can reduce current supply loss, saves energy fund.
On this research basis, in order to reach above purpose, wastage reducing and energy saving type load phase modulator of the present utility model comprises three phase supply end and single phase power supply end, described three phase supply end is connected with the single phase power supply end with the 3rd relay normally open contact by first, second respectively, its improvements are, first, second and three control switch of one of described three-phase power line by parallel connection connects first, second and the 3rd relay coil respectively.
Like this, when the three-phase load of supply line is uneven, during certain phase controlling switch by the closed wastage reducing and energy saving type load of automatic or manual phase modulator, the individual event load can be loaded among lower one of load, thereby three-phase load is tended to balance, reach the purpose that reduces line loss.
Above wastage reducing and energy saving type load phase modulator further improves and is, one of described three-phase power line connects in parallel first, second and the 3rd control switch through first, second and the 3rd relay normally-closed contact of series connection, and first, second and the 3rd relay self-sustaining normally opened contact by parallel connection connect first, second and the 3rd relay coil.Like this, control switch can adopt push button, after the release, can keep required state of a control because of the self-sustaining normally opened contact is closed.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the circuit theory diagrams of an embodiment of the utility model.
Embodiment
Embodiment one
The wastage reducing and energy saving type load phase modulator of present embodiment comprises three phase supply end U, V, W and the following downward single phase power supply end of top as shown in Figure 1.The three phase supply end is connected with the single phase power supply end with the 3rd relay K U, KV, KW normally opened contact by first, second respectively, and one of three-phase power line connects first, second and the 3rd relay normally-closed contact of series connection through fuse RU, section breaker SI, connect first, second and the 3rd control button switch S U, SV, SW in parallel again, and first, second meets first, second and the 3rd relay coil KU, KV, KW respectively with the 3rd control switch thus.Simultaneously, one of three-phase power line also connects first, second and the 3rd relay coil through in parallel first, second and the 3rd relay self-sustaining normally opened contact, constitutes self-holding circuit.P, V are the current voltmeter that is used to monitor among the figure.
The wastage reducing and energy saving type load phase modulator integral body of present embodiment is placed in the box, can be installed in the electric pole middle part as required, needn't climb and can operate control, and is very convenient.
In the practice, can not truly reflect load condition on the circuit owing to have a power failure, line transfer adjustment load is difficult to reach the requirement of balance three-phase load on the manual bar, but also can influence power supply reliability.And the wastage reducing and energy saving type load phase modulator of one to two playscript with stage directions embodiment has been installed on the line, but then safe ready in peak of power consumption season, perhaps adjusted once in (general 1 to 2 months periods of waves) 1-2 month with the customer charge fluctuation.And be under the situation of stepping on the bar operation that need not have a power failure, to adjust the long-term three-phase current unbalance phenomenon that single-phase unbalanced load causes, reduce line loss, reduce power supply unit and damage.Both guaranteed the fail safe of work, the reliability of power supply has reached the long-term effect that wastage reducing and energy saving reduces device damage again, at one stroke piece.
More than the installation method of load phase modulator is: go up a load phase modulator is installed a branch line user (according to the selected 5-10 family of platform varying capacity load condition), can select a building residential building or a unit in the cities and towns, suburb that electricity consumption is concentrated, only need simple operations, peak of power consumption every month with the distribution transforming header tank in the fluctuation situation of ammeter adjust (spring and autumn season 1 once) one to twice by 2 months, with control button the branch line user being adjusted to low that of load goes up mutually, just can make the degree of unbalance of the three-phase load that platform becomes can be less than 10%, thereby effectively controlled the single-phase overload of power supply unit, prolonged equipment life, reduced line loss, the purpose that reaching increases income and economizes on spending reduces the wastage.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (3)
1. wastage reducing and energy saving type load phase modulator, comprise three phase supply end and single phase power supply end, described three phase supply end is connected with the single phase power supply end with the 3rd relay normally open contact by first, second respectively, it is characterized in that: one of described three-phase power line connects first, second and the 3rd relay coil by first, second of parallel connection respectively with the 3rd control switch.
2. according to the described wastage reducing and energy saving type load of claim 1 phase modulator, it is characterized in that: one of described three-phase power line connects in parallel first, second and the 3rd control switch through first, second and the 3rd relay normally-closed contact of series connection, and first, second and the 3rd relay self-sustaining normally opened contact by parallel connection connect first, second and the 3rd relay coil.
3. according to the described wastage reducing and energy saving type load of claim 2 phase modulator, it is characterized in that: one of described three-phase power line connects first, second and the 3rd relay normally-closed contact of described series connection through section breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200705446U CN2899232Y (en) | 2006-03-23 | 2006-03-23 | Loss-descending loading economical phase adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200705446U CN2899232Y (en) | 2006-03-23 | 2006-03-23 | Loss-descending loading economical phase adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899232Y true CN2899232Y (en) | 2007-05-09 |
Family
ID=38074564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200705446U Expired - Fee Related CN2899232Y (en) | 2006-03-23 | 2006-03-23 | Loss-descending loading economical phase adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899232Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854062A (en) * | 2010-07-01 | 2010-10-06 | 山东卓尔电气有限公司 | Automatic three-phase switching method of load |
| CN102487197A (en) * | 2010-12-01 | 2012-06-06 | 广东西电动力科技股份有限公司 | Three-phase load balancer of small-power set |
-
2006
- 2006-03-23 CN CNU2006200705446U patent/CN2899232Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854062A (en) * | 2010-07-01 | 2010-10-06 | 山东卓尔电气有限公司 | Automatic three-phase switching method of load |
| CN101854062B (en) * | 2010-07-01 | 2013-03-06 | 山东卓尔电气有限公司 | Automatic three-phase switching method of load |
| CN102487197A (en) * | 2010-12-01 | 2012-06-06 | 广东西电动力科技股份有限公司 | Three-phase load balancer of small-power set |
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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: 20070509 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |