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Reactive power compensation and voltage regulator - voltage regulation, power, reactive power compe by ewrt wrtgnfh
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Reactive power compensation and voltage regulator - voltage regulation, power, reactive power compe by EWRT WRTGNFH
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| Article Posted: 04/23/2011 |
| Article Views: 70 |
| Articles Written: 1452 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 778 |
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Reactive power compensation and voltage regulator - voltage regulation, power, reactive power compe |
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Business,Business News,Business Opportunities
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Will Reactor , Capacitor , Synchronous transfer devices such as cameras and regulating transformers access network in order to improve power factor, adjusting the voltage and played the role of compensation parameters. Reactive power compensation of the basic principle is: according to voltage stratified, according to network partition, local equilibrium, to avoid long-distance transport of reactive power, so as not to take up transmission line capacity and increased power loss.
1 input reactive power compensation and voltage regulation
No direct supply most of the load transmission networks are generally not set up for the purpose of reactive power surge Compensator . Parameters of compensation are used for long distance transmission lines with series compensation (also known as vertical compensation) and parallel compensation (also known as horizontal compensation) of the points. Voltage support is more for the electricity network by connecting with the regional power grids in the central point.
1.1 Reactance Compensation Reactor is super- High pressure Compensation for long-distance transmission lines commonly used equipment, to compensate for transmission line-to-ground capacitance of the power generated by the charge to suppress power frequency overvoltage. Reactor capacity based on route length and over-voltage limit level of choice, the compensation ratio (capacity of the reactor and the line charging power ratio) of 70 mostly foreign and Statistics 85, individual 65, generally not less than 60. Reactor generally always set the line at both ends, and does not set breaker.
1.2 serial capacitor compensation Series capacitor to compensate for transmission line inductive reactance, play a shortened Electric Improve the level and stability from the transmission line capacity role. Series capacitors are mostly series and parallel combination of parallel count determined by the transmission line capacity, the number series by series capacitor compensation level required (in series capacitor compensated line capacitance and inductance ratio) be. Series compensation is generally below 50, should not be too high in order to avoid system SSR. Transmission network in the circulation caused by impedance imbalance, they can be used to compensate for series capacitor. 110kV ring in Japan on the use of a series compensation.
1.3 intermediate synchronous or static compensation
In the middle of the installation of long transmission line or a static synchronous compensator adjust the camera, use of these devices reactive power regulation capabilities, in line light load absorption line charging power limit voltage rise; in line when the issue of non-overloaded reactive power to compensate for the loss of reactive power lines to support the voltage level, thereby enhancing the transmission line capacity. Intermediate synchronous or static compensation usually located in the mid-point line, if the first in line at the end, the regulation disappeared.
Grid voltage support points and the regulator by the electric grid and the region's low-level voltage power grid linked to the hub point, often set to load tap or a substantial adjustment and control of reactive power compensation equipment , or both, to achieve the central point surge, to run from the grid or less affected by changes or trends Other Causes the formation of voltage fluctuations, in the event of an accident from the power grid voltage support role, to prevent violent fluctuations in grid voltage due to the expansion accident.
Voltage support capability of the strength, in addition to compensation and compensation methods and the size of capacity, more regulation and compensation device control and response speed. Although shunt capacitor compensation equipment commonly used and inexpensive, but the reactive power when voltage drops in the square of the voltage will be decreased, and not conducive to support the voltage. Instead, a large number of installation of shunt capacitor compensation network in incidents contributing to the possibility of voltage collapse. Synchronous transfer camera and static var compensation device supported by appropriate regulatory control, is an ideal support for voltage reactive power compensation equipment. In recent years, both at home and abroad pay attention to the application of static compensator.
2 with reactive power compensation and voltage regulation
To phase compensation and to ensure the quality of main voltage electricity users.
2.1 also known as power factor correction phase compensation
Electrical appliances are mostly electromagnetic structure, requires a lot of excitation power, causing the user delay phase and power factor are low, generally around 0.7 or so. We are high quality suppliers, our products such as Women Leather Backpacks , Ladies Leather Backpacks Manufacturer for oversee buyer. To know more, please visits Ladies Leather Shoulder Bags.
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