CN204190393U - The meticulous reactive power compensator of low pressure - Google Patents
The meticulous reactive power compensator of low pressure Download PDFInfo
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- CN204190393U CN204190393U CN201420609675.1U CN201420609675U CN204190393U CN 204190393 U CN204190393 U CN 204190393U CN 201420609675 U CN201420609675 U CN 201420609675U CN 204190393 U CN204190393 U CN 204190393U
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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
Abstract
The utility model relates to the meticulous reactive power compensator of a kind of low pressure, comprise idle compensating control and the meticulous reactive compensation unit of low pressure, the meticulous reactive compensation unit of low pressure comprises the fuse be arranged in series, thuristor throw-in and throw-off circuits for triggering, capacitor, thuristor throw-in and throw-off circuits for triggering comprise photoelectrical coupler, interrupt detecting executive circuit, zero passage detection correction circuit, thyristor protection circuit, interrupt detecting executive circuit and comprise magnetic latching relay, thuristor throw-in and throw-off circuits for triggering respectively with fuse, capacitor, idle compensating control is electrically connected, the three-phase bus of the meticulous reactive compensation unit of low pressure is provided with circuit breaker.This utility model is applicable to the little distribution system of reactive requirement, can realize single-phase compensation and three-phase compensates simultaneously, and volume is little, modular construction, wiring is simple, easy to maintenance, low in energy consumption, antijamming capability is strong, switch module action response speed is fast, can frequent operation, and minimum to compensate 1kVar idle, compensation precision is high, realizes meticulous compensation.
Description
Technical field
The utility model relates to low-pressure reactive compensation field, is specifically related to the meticulous reactive power compensator of a kind of low pressure.
Background technology
The effect that reactive power compensation device is born in electronic power system is the power factor improving electrical network, reduces the loss of supply transformer and conveying circuit, improves power supplying efficiency, improves power supply environment.So reactive power compensation device is in an indispensable very important position in power supply system.Rational selection compensation arrangement, can accomplish the loss reducing network to greatest extent, power grid quality is improved.Otherwise, as selected or improper use, electric power system voltage fluctuation may be caused, the factors such as harmonic wave increase.Existing low-pressure reactive compensation equipment volume is huge, structure bulky, power consumption are high, expensive, use underaction, it is convenient not to safeguard, useful life is shorter, reliability is lower, for the distribution system that the distribution line reactive requirement such as long-distance transmission line, small capacity transformer, small-scale factory and residential quarter are little, lack customized reactive power compensator.
Utility model content
For above-mentioned weak point of the prior art, the utility model aims to provide that a kind of volume is little, and price is low, low in energy consumption, uses flexibly, is applicable to the meticulous reactive power compensator of low pressure that the distribution system little to reactive requirement carries out meticulous reactive power compensation.
To achieve these goals, the technical solution of the utility model: include idle compensating control and the meticulous reactive compensation unit of low pressure, the meticulous reactive compensation unit of described low pressure includes the fuse be arranged in series, thuristor throw-in and throw-off circuits for triggering, capacitor, described thuristor throw-in and throw-off circuits for triggering include photoelectrical coupler, interrupt detecting executive circuit, zero passage detection correction circuit, thyristor protection circuit, the primary connection end of described thuristor throw-in and throw-off circuits for triggering is connected with described capacitor electrode, the secondary connection end of described thuristor throw-in and throw-off circuits for triggering is electrically connected with described idle compensating control.
Further, the end of incoming cables of described thuristor throw-in and throw-off circuits for triggering is electrically connected with described fuse.
Further, described interruption detects executive circuit and includes magnetic latching relay.
Further, the three-phase bus of the meticulous reactive compensation unit of described low pressure is provided with circuit breaker.
The beneficial effects of the utility model: the meticulous reactive compensation unit of the low pressure in the utility model is modular construction, volume is little, wiring is simple, easy to maintenance, thuristor throw-in and throw-off circuits for triggering realize operating passing zero, without overvoltage, no-spark, noiseless, capacitor " zero switching ", switching process no-flashy-flow impacts, without switching overvoltage, action response speed is fast, can frequent operation, light current is adopted to be separated inlet wire with forceful electric power, effectively prevent primary line to the interference of secondary singal line, greatly improve complete machine antijamming capability, the built-in multichannel electric capacity of the meticulous reactive compensation unit of low pressure and multichannel operating passing zero synchro switch, according to control command regulation output different capabilities electric capacity, it is minimum that to compensate 1kVar idle, single-phase compensation can be realized and three-phase compensates simultaneously, and then meticulous compensation is reached to electrical network.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is primary connection figure of the present utility model;
Fig. 2 is secondary connection diagram of the present utility model;
Fig. 3 is structured flowchart of the present utility model;
In figure, 1, idle compensating control, 2, the meticulous reactive compensation unit of low pressure, 3, circuit breaker; 21, thuristor throw-in and throw-off circuits for triggering, 22, capacitor, 23, fuse; 211 photoelectrical couplers, 212, interrupt detecting executive circuit, 213, zero passage detection correction circuit, 214, thyristor protection circuit.
Embodiment
The utility model is further described below in conjunction with specific embodiment and accompanying drawing.
A kind of meticulous reactive power compensator of low pressure as shown in Fig. 1-Fig. 3, include idle compensating control 1 and the meticulous reactive compensation unit 2 of low pressure, the meticulous reactive compensation unit 2 of described low pressure includes the fuse 23 be arranged in series, thuristor throw-in and throw-off circuits for triggering 21, capacitor 22, capacitor 22 in each phase line carries out single-phase reactive power compensation to each phase line, it is minimum that to compensate 1kVar idle, fuse 23 in each phase line is when current anomaly is elevated to certain altitude, electric current is cut off in self fusing, thus play the effect of protective circuit safe operation, prevent the important devices in the circuit damage circuit raised.Described thuristor throw-in and throw-off circuits for triggering 21 include photoelectrical coupler 211, interrupt detecting executive circuit 212, zero passage detection correction circuit 213, thyristor protection circuit 214.The primary connection end of thuristor throw-in and throw-off circuits for triggering 21 is electrically connected with described capacitor 22, photoelectrical coupler 211 take light as the media transmission signal of telecommunication, to input, export the signal of telecommunication and have good Phototube Coupling effect, realize reliable electric isolution between the control of reactive power compensating circuit 1 and thuristor throw-in and throw-off circuits for triggering 21, interrupt detecting executive circuit 212 and include magnetic latching relay, the contact of this magnetic latching relay is opened, the magnetic force that conjunction state is produced by permanent magnet keeps, do not need energising, low in energy consumption, realize detecting the interruption of controlled circuit, automatically circuit is switched on or off, zero passage detection correction circuit 213 realizes thyristor conducting when the zero-bit of alternating current, reduce surge impact energy to the infringement of thyristor, the loss of thyristor is allowed to drop to minimum, extend the useful life of thyristor, thyristor protection circuit 214 is prior art, repeat no more.The secondary connection end of described thuristor throw-in and throw-off circuits for triggering 21 is electrically connected with described idle compensating control 1, and idle compensating control 1 controls the break-make of thuristor throw-in and throw-off circuits for triggering 21.Thuristor throw-in and throw-off circuits for triggering 21 action response speed is fast, can frequent operation, realize dropping into and current over-zero excision the voltage zero-cross of capacitor 22, voltage zero-cross drops into produce and shoves, current over-zero excision realize make and break contact without electric arc disjunction, operating passing zero has without overvoltage, no-spark, glitch-free effect.The three-phase bus of the meticulous reactive compensation unit 2 of low pressure is provided with circuit breaker 3, and this circuit breaker 3 realizes overload, short circuit and under voltage protection, and operating value is adjustable, breaking capacity is high, easy to operate, safety.
The meticulous reactive power compensator of this low pressure is applicable to the little distribution system of reactive requirement, as long-distance transmission line, small capacity transformer, small-scale factory, the distribution line of residential quarter etc., single-phase compensation can be realized and three-phase compensates simultaneously, volume is little, modular construction, wiring is simple, easy to maintenance, low in energy consumption, save cost, light current is adopted to be separated inlet wire with forceful electric power, prevent primary line to the interference of secondary singal line, significantly improve antijamming capability, switch module action response speed is fast, can frequent operation, the built-in multichannel electric capacity of the meticulous reactive compensation unit of low pressure and multichannel operating passing zero synchro switch, according to control command regulation output different capabilities electric capacity, it is minimum that to compensate 1kVar idle, compensation precision is high, realize the meticulous compensation to electrical network.
Above the technical scheme that the utility model embodiment provides is described in detail, apply specific case herein to set forth the principle of the utility model embodiment and execution mode, the explanation of above embodiment is only applicable to the principle helping to understand the utility model embodiment; Meanwhile, for one of ordinary skill in the art, according to the utility model embodiment, embodiment and range of application all will change, and in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. the meticulous reactive power compensator of low pressure, it is characterized in that, include idle compensating control (1) and the meticulous reactive compensation unit of low pressure (2), the meticulous reactive compensation unit of described low pressure (2) includes the fuse (23) be arranged in series, thuristor throw-in and throw-off circuits for triggering (21), capacitor (22), described thuristor throw-in and throw-off circuits for triggering (21) include photoelectrical coupler (211), interrupt detecting executive circuit (212), zero passage detection correction circuit (213), thyristor protection circuit (214), the primary connection end of described thuristor throw-in and throw-off circuits for triggering (21) is electrically connected with described capacitor (22), the secondary connection end of described thuristor throw-in and throw-off circuits for triggering (21) is electrically connected with described idle compensating control (1).
2. the meticulous reactive power compensator of low pressure as claimed in claim 1, it is characterized in that, the end of incoming cables of described thuristor throw-in and throw-off circuits for triggering (21) is electrically connected with described fuse (23).
3. the meticulous reactive power compensator of low pressure as claimed in claim 1, is characterized in that, described interruption detects executive circuit (212) and includes magnetic latching relay.
4. the meticulous reactive power compensator of low pressure as claimed in claim 1, it is characterized in that, the three-phase bus of the meticulous reactive compensation unit of described low pressure (2) is provided with circuit breaker (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420609675.1U CN204190393U (en) | 2014-10-21 | 2014-10-21 | The meticulous reactive power compensator of low pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420609675.1U CN204190393U (en) | 2014-10-21 | 2014-10-21 | The meticulous reactive power compensator of low pressure |
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| Publication Number | Publication Date |
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| CN204190393U true CN204190393U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420609675.1U Active CN204190393U (en) | 2014-10-21 | 2014-10-21 | The meticulous reactive power compensator of low pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532738A (en) * | 2017-01-03 | 2017-03-22 | 浙江聚弘凯电气有限公司 | Low-voltage intelligent reactive compensation system device |
| CN113558659A (en) * | 2021-07-30 | 2021-10-29 | 重庆安酷科技有限公司 | High-precision ultrasonic lung function detector and detection method thereof |
-
2014
- 2014-10-21 CN CN201420609675.1U patent/CN204190393U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532738A (en) * | 2017-01-03 | 2017-03-22 | 浙江聚弘凯电气有限公司 | Low-voltage intelligent reactive compensation system device |
| CN113558659A (en) * | 2021-07-30 | 2021-10-29 | 重庆安酷科技有限公司 | High-precision ultrasonic lung function detector and detection method thereof |
| CN113558659B (en) * | 2021-07-30 | 2023-07-04 | 重庆安酷科技有限公司 | High-precision ultrasonic lung function detector and detection method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |