CN204144941U - A kind of low pressure electricity-saving appliance - Google Patents
A kind of low pressure electricity-saving appliance Download PDFInfo
- Publication number
- CN204144941U CN204144941U CN201420332400.8U CN201420332400U CN204144941U CN 204144941 U CN204144941 U CN 204144941U CN 201420332400 U CN201420332400 U CN 201420332400U CN 204144941 U CN204144941 U CN 204144941U
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- branch road
- relay
- electricity
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- low pressure
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Abstract
The utility model relates to a kind of low pressure electricity-saving appliance, the inlet wire of this electrical equipment is by relay electrical connection reactive power compensation branch road, the economize on electricity branch road of the tape relay of the inlet wire electrical connection parallel relationship of this electrical equipment, the civil power branch road of tape relay, the contact branch road of tape relay, first connects branch road, described economize on electricity branch road is by the first gear relay branch road of relay electrical connection parallel relationship, second gear relay branch road, third gear relay branch road and second connects branch road, the outlet of this electrical equipment is electrically connected the first gear relay branch road, second gear relay branch road, third gear relay branch road, second connects branch road, first connects branch road, civil power branch road, contact branch road.The utility model is simple to operate, failure rate is low, and coefficient of safety is high.
Description
Technical field
The utility model relates to a kind of low pressure electricity-saving appliance, and particularly a kind of Siemens programmable logic device S7-200 that uses carries out the low pressure electricity-saving appliance automatically controlled.
Background technology
Low pressure electricity-saving appliance as its name suggests, a kind of exactly when not changing load running characteristic, unnecessary electric flux is saved, to remove the prejudicial such as multiple harmonic of load, to reach the object of economize on electricity, extend the useful life of load, there is complicated operation in current low pressure electricity-saving appliance simultaneously, failure rate is low, the problem that coefficient of safety is low.
Summary of the invention
Technical problem to be solved in the utility model is: how to provide a kind of simple to operate, failure rate is low, the low pressure electricity-saving appliance that coefficient of safety is high.
The technical scheme that the utility model adopts is: a kind of low pressure electricity-saving appliance, the inlet wire of this electrical equipment is by relay electrical connection reactive power compensation branch road, the economize on electricity branch road of the tape relay of the inlet wire electrical connection parallel relationship of this electrical equipment, the civil power branch road of tape relay, the contact branch road of tape relay, first connects branch road, described economize on electricity branch road is by the first gear relay branch road of relay electrical connection parallel relationship, second gear relay branch road, third gear relay branch road and second connects branch road, the outlet of this electrical equipment is electrically connected the first gear relay branch road, second gear relay branch road, third gear relay branch road, second connects branch road, first connects branch road, civil power branch road, contact branch road.
As a kind of optimal way: described first connection branch road is connected branch road with second have a relay and a resistant series to form.
As a kind of optimal way: all relays all signal of telecommunication connect programmable logic device S7-200.
As a kind of optimal way: programmable logic device S7-200 wireless connection control device.
The beneficial effects of the utility model are: circuit handoff procedure of the present utility model all has the participation work of seamless link circuit, avoid the appearance of voltage fluctuation phenomenon either large or small in commutation circuit process; The complete power-off of equipment during contact branch road of the present utility model can make equipment fault safeguard and do not affect the normal electricity consumption of supply line's upstream and downstream; Reactive power compensation branch road of the present utility model guarantees that the power factor of system is run between 0.85 ~ 0.95; The utility model connects programmable logic device S7-200 by all relay signals of telecommunication, the utility model is made to realize automatically controlling, programmable logic device S7-200 wireless connection control device simultaneously, such as mobile phone, can realize the control easily realized low pressure electricity-saving appliance.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model;
Wherein, 1, first to third gear relay branch road, and 2, second connects branch road, and 3, economize on electricity branch road, 4, civil power branch road, 5, contact branch road, 6, first connects branch road, and 7, reactive power compensation branch road, 8, programmable logic device S7-200,9, wireless device.
Embodiment
As shown in Figure 1, this device uses three-phase alternating current work, and work process is connected in circuit, programmable logic device S7-200 monitors circuit automatically, in circuit initial procedure, uses civil power branch road to start, after startup, be transitioned into economize on electricity branch road and carry out work.
When mutually switching between the switching between any two paths between the utility model three paths or three gears, all there is the participation work of link circuit, article three, the link circuit of the switching between path is connected to the top and bottom of city's electric contactor, switch at path, this link circuit break-off, until the switching of path next time.When input terminal voltage condition can not meet economize on electricity closed-circuit working condition, programmable logic device inside judges to need to forward civil power closed-circuit working to by current economize on electricity path, the flow process of conversion is as follows: programmable logic device output channel linkage unit working signal, commander's path linkage unit work also keeps, now programmable logic device cuts off line unit and power save unit working signal, programmable logic device is undertaken gathering by all contactor states of being correlated with to economize on electricity path and is confirmed, quit work at confirmation economize on electricity path, then programmable logic device exports civil power cell operation signal, commander's civil power cell operation, programmable logic device cuts off path link circuit while confirmation city electric pathway is devoted oneself to work.It may be noted that simultaneously, when using three-phase alternating current, the link circuit of the switching between three gears is connected to intervening gears contactor upper port, and lower end is similarly star-like with gear contactor and is connected, this link circuit break-off after gear switch completes, until the switching of gear next time.
In actual life, there are many enterprises not take a preparation and a use the safety measure of master control cabinet is not even installed thus has buried electricity consumption hidden danger according to national requirements to electricity supply and use equipment to reduce investment, often occur that any branch road of electric power system power consumption equipment whole electric power system that breaks down all needs to have a power failure and brings inconvenience to enterprise's productive life, energy-saving device is no exception.We propose to increase a contact path for this electricity-saving appliance to occur significant trouble to prevent this electricity-saving appliance, and at a three-phase power input end contact contactor in parallel with three-phase power output end, contact contactor will be terminated at three phase mains input row, under be terminated at three phase mains and export son row, and the same as programmable logic device unified management with economize on electricity path, city's electric pathway.
The well-known harmonic wave that has in commercial power produces thus the power factor affecting supply line, and national hard requirement power factor lower than 0.90 will face punishment in various degree by electric line, in order to solve the limited compensation ability of power save unit itself, we to take the design in the reactive power compensation loop of automatically configuration to this electricity-saving appliance.
The structure of reactive compensation unit: formed by a reactive power compensation contactor, three capacitor switching contactors and three groups of electric capacity and be formed in parallel with electricity-saving appliance main unit.
The design in the reactive power compensation loop of automatic configuration, solve the compensation ability that power save unit itself is limited, and this reactive power compensation loop is full control, the current system power factor that programmable logic device is recorded by electric parameter measurement statistical module, when confirming to need reactive power compensation, first reactive power compensation loop is started by the adhesive of shunt compensation contactor coil, then programmable logic device determines the investment of electric capacity again by the current system power factor that electric parameter measurement statistical module records, the group number dropping into electric capacity is controlled by programmable logic device equally, because this low pressure electricity-saving appliance electric loading mostly is inductive load, therefore the inevasible generation having reactive energy, this low pressure electricity-saving appliance utilizes the characteristic of reactive power compensation, the power factor of system is improved by some groups of reactive power compensation power capacitor banks, the power factor that programmable logic device meeting is automatically current according to this low pressure electricity-saving appliance, the input group number of automatic judgement power capacitor, by the input group number of power capacitor, to guarantee that the power factor of system is run between 0.85 ~ 0.95.
Due to manpower finite sum working condition limit power engineering personnel can not power consumption equipment being checked and controls of 24 hours all-weathers, we have carried out Long-distance Control design to this electricity-saving appliance.
The GPRS network utilizing mobile phone operators to provide and Internet network, can by serial for this in World Wide Web low pressure electricity-saving appliance centralized management, to ruuning situation real-time tracking, pass back in the computer of centralized control platform on demand to the image data of equipment, by to the analysis of image data and comparison, for client provides better power saving scheme, judge according to the ruuning situation of electrical quantity to the low pressure electricity-saving appliance at scene uploaded simultaneously, the closed situation of the switching point of GPRS radio receiving transmitting module is utilized to feed back to the state of programmable logic device, long-range control control is carried out to electricity-saving appliance.
Claims (4)
1. a low pressure electricity-saving appliance, it is characterized in that: the inlet wire of this electrical equipment is by relay electrical connection reactive power compensation branch road, the economize on electricity branch road of the tape relay of the inlet wire electrical connection parallel relationship of this electrical equipment, the civil power branch road of tape relay, the contact branch road of tape relay, first connects branch road, described economize on electricity branch road is by the first gear relay branch road of relay electrical connection parallel relationship, second gear relay branch road, third gear relay branch road and second connects branch road, the outlet of this electrical equipment is electrically connected the first gear relay branch road, second gear relay branch road, third gear relay branch road, second connects branch road, first connects branch road, civil power branch road, contact branch road.
2. a kind of low pressure electricity-saving appliance according to claim 1, is characterized in that: described first connection branch road is connected branch road with second have a relay and a resistant series to form.
3. a kind of low pressure electricity-saving appliance according to claim 2, is characterized in that: all relays all signal of telecommunication connect programmable logic device S7-200.
4. a kind of low pressure electricity-saving appliance according to claim 3, is characterized in that: programmable logic device S7-200 wireless connection control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332400.8U CN204144941U (en) | 2014-06-22 | 2014-06-22 | A kind of low pressure electricity-saving appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332400.8U CN204144941U (en) | 2014-06-22 | 2014-06-22 | A kind of low pressure electricity-saving appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204144941U true CN204144941U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420332400.8U Expired - Fee Related CN204144941U (en) | 2014-06-22 | 2014-06-22 | A kind of low pressure electricity-saving appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204144941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134992A (en) * | 2014-06-22 | 2014-11-05 | 山西乐普节能技术有限公司 | Low-voltage power saver |
-
2014
- 2014-06-22 CN CN201420332400.8U patent/CN204144941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134992A (en) * | 2014-06-22 | 2014-11-05 | 山西乐普节能技术有限公司 | Low-voltage power saver |
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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: 20150204 Termination date: 20150622 |
|
| EXPY | Termination of patent right or utility model |