CN203434631U - Reactive local-compensation starting device - Google Patents
Reactive local-compensation starting device Download PDFInfo
- Publication number
- CN203434631U CN203434631U CN201320492427.9U CN201320492427U CN203434631U CN 203434631 U CN203434631 U CN 203434631U CN 201320492427 U CN201320492427 U CN 201320492427U CN 203434631 U CN203434631 U CN 203434631U
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- Prior art keywords
- reactive
- compensation
- starter
- electrical equipment
- power
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
A reactive local-compensation starting device comprises an electrical equipment starter in the prior art. The reactive local-compensation starting device is characterized by further comprising a reactive compensation circuit, the reactive compensation circuit is composed of inductors L1-L3 and capacitors C1-C3, the capacitors C1-C3 are in star connection or in triangular connection, and the capacitors C1-C3 are connected with the inductors L1-L3 in series to be connected to output terminals U2, V2, W2 of a three-phase power supply of the electrical equipment starter. The reactive local-compensation starting device is advantageous in that: the device is applied to electrical equipment such as a coal mine underground motor, and, when single electrical equipment is started to run, runtime required reactive power of the single electrical equipment can be compensated locally and randomly at the same time through the internal capacitors; and, therefore, the device allows reactive compensation to be input or removed according to an electrical load, power supply quality of an electrical network can be adjusted better, space is saved, an energy exchange distance is shortest, line current and heat loss can be reduced to the limit, and a power-saving effect is best.
Description
Technical field
The utility model relates to a kind of starting drive, and particularly a kind of reactive power compensation on the spot starting drive, is applicable to startup and the reactive power compensation of underground mine use electricity equipment.
Background technology
At present, under coal mine, in supply and distribution system, extensively there is a large amount of inductive loads, as threephase asynchronous and transformer etc., these inductive loads can consume a large amount of reactive powers in supply and distribution system, reduce the power factor of supply and distribution system, and then cause the loss of supply and distribution line voltage distribution to strengthen and electric energy loss increase.In addition, for some impact load or burden without work, also can produce violent voltage fluctuation, the power supply quality of electrical network is worsened, cause motor start-up difficulty or frequent start-stop to cause burning, particularly in the use of high power motor, this impact shows particularly evidently.In addition, because the increase of reactive current can cause supply line and power consumption equipment insulation, decline, aging, easily cause the faults such as electric leakage, short circuit.And the basic method addressing these problems carries out reactive power compensation exactly.The Reactive Compensation Mode that present most of coal mining enterprise adopts is all centralized compensation way, the common way of this compensation way is, in supply and distribution system, adopt fixed installation or automatic switching mode to access the capacitive apparatus such as shunt capacitor, these capacitive apparatus can compensate the part reactive power that in supply and distribution system, inductive load consumes, reduce reactive power flows in electrical network, thereby reduce supply and distribution line energy loss, improve supply and distribution system power factor, improve operation of power networks condition.But because the general transformer and distribution power station on the ground of centralized compensation carries out, and power consumption equipment under coal mine also has far distance, therefore apply this centralized compensation way compensating reactive power, still may cause that underground mine use electricity equipment end power factor is lower, reactive loss is still very large.Be more than the deficiencies in the prior art.
Utility model content
The purpose of this utility model is: design a kind of reactive power compensation on the spot starting drive, this application of installation is on the power consumption equipments such as coal mine electrical, can be when starting the operation of separate unit power consumption equipment, the on the spot random reactive compensation of realization to separate unit power consumption equipment, in order to overcome the deficiencies in the prior art.
The purpose of this utility model can realize by following technical proposals:
This reactive power compensation on the spot starting drive, the power consumption equipment starter that comprises prior art, it is characterized in that: also comprise reactive power compensation circuit, described reactive power compensation circuit is comprised of inductance L 1～L3 and capacitor C 1～C3, capacitor C 1～C3 is that Y-connection or triangle connect, after itself and inductance L 1～L3 are connected in series, be connected on the sub-U2 of three-phase power output end, V2, W2 of power consumption equipment starter.
Power consumption equipment starter described in the utility model is flame-proof type flexible starting equipment RQ.
Power consumption equipment starter described in the utility model is flame-proof type magnetic starter CQ.
The utility model has the advantages that: this application of installation, can be when starting the operation of separate unit power consumption equipment on the power consumption equipments such as coal mine electrical, required reactive power when random back-off separate unit power consumption equipment moves on the spot by its internal capacitor; Therefore, this device has been realized reactive power compensation and has been dropped into or excision with power load, can regulate better the power supply quality of electrical network, and saves space, and energy exchange distance is the shortest, can reduce to greatest extent line current, reduce thermal losses, and power savings is best.
Accompanying drawing explanation
Fig. 1 is that capacitor C 1～C3 is Y-connection, power consumption equipment starter while being flame-proof type flexible starting equipment RQ, operating circuit schematic diagram of the present utility model;
Fig. 2 is that capacitor C 1～C3 is that triangle connects, power consumption equipment starter is while being flame-proof type flexible starting equipment RQ, operating circuit schematic diagram of the present utility model;
Fig. 3 is that capacitor C 1～C3 is Y-connection, power consumption equipment starter while being flame-proof type magnetic starter CQ, operating circuit schematic diagram of the present utility model;
Fig. 4 is that capacitor C 1～C3 is that triangle connects, power consumption equipment starter is while being flame-proof type magnetic starter CQ, operating circuit schematic diagram of the present utility model.
Embodiment
As Figure 1-4, this reactive power compensation on the spot starting drive, the power consumption equipment starter that comprises prior art, it is characterized in that: also comprise reactive power compensation circuit, described reactive power compensation circuit is comprised of inductance L 1～L3 and capacitor C 1～C3, capacitor C 1～C3 is that Y-connection or triangle connect, and after itself and inductance L 1～L3 are connected in series, is connected on the sub-U2 of three-phase power output end, V2, W2 of power consumption equipment starter.Described power consumption equipment starter is flame-proof type flexible starting equipment RQ.Described power consumption equipment starter is flame-proof type magnetic starter CQ.
This reactive power compensation on the spot starting drive in use, as long as by three-phase ac power supply (～380/660/1140V) and load (as, AC asynchronous motor) three-phase power input end and three-phase power output end that access respectively this device (are also, the sub-U1 of three-phase power input end, V1, W1 and the sub-U2 of three-phase power output end, V2, the W2 of power consumption equipment starter in device) on, can normally start running load, and in running load, load be carried out to random reactive compensation on the spot.
Claims (3)
1. a reactive power compensation on the spot starting drive, the power consumption equipment starter that comprises prior art, it is characterized in that: also comprise reactive power compensation circuit, described reactive power compensation circuit is comprised of inductance L 1～L3 and capacitor C 1～C3, capacitor C 1～C3 is that Y-connection or triangle connect, after itself and inductance L 1～L3 are connected in series, be connected on the sub-U2 of three-phase power output end, V2, W2 of power consumption equipment starter.
2. reactive power compensation on the spot starting drive according to claim 1, is characterized in that: described power consumption equipment starter is flame-proof type flexible starting equipment RQ.
3. reactive power compensation on the spot starting drive according to claim 1, is characterized in that: described power consumption equipment starter is flame-proof type magnetic starter CQ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492427.9U CN203434631U (en) | 2013-08-13 | 2013-08-13 | Reactive local-compensation starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492427.9U CN203434631U (en) | 2013-08-13 | 2013-08-13 | Reactive local-compensation starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434631U true CN203434631U (en) | 2014-02-12 |
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ID=50063649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320492427.9U Expired - Fee Related CN203434631U (en) | 2013-08-13 | 2013-08-13 | Reactive local-compensation starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429513A (en) * | 2015-12-21 | 2016-03-23 | 江苏省镇江船厂（集团）有限公司 | Marine electric motor starting compensation apparatus |
-
2013
- 2013-08-13 CN CN201320492427.9U patent/CN203434631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429513A (en) * | 2015-12-21 | 2016-03-23 | 江苏省镇江船厂（集团）有限公司 | Marine electric motor starting compensation apparatus |
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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: 20140212 Termination date: 20180813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |