wireless power transmission

... Ubiquitous Power Source (or) Wireless Power Source, Wireless sensors and RF Power Adaptive Rectifying Circuits (PARC). 5. CONCLUSION The concept of Microwave Power transmission (MPT) and Wireless Power ... experiment by wirelessly powering a light bulb with 75% efficiency at a shorter distance [12]. 2.2 Wireless Power Transmission System William C. Brown, the pioneer...

Ngày tải lên: 01/05/2014, 08:23

... Islands …Clean Energy to Platforms & Islands … DC Cable Transmission DC Cable Transmission DC Overhead Line Transmission DC Overhead Line Transmission Back-to-Back Systems Back-to-Back Systems Multiterminal ... tremendous benefits for power transmission. It will help significantly in increasing sustainability and security for transmission systems. In future, a combination...

Ngày tải lên: 15/10/2013, 16:24

Ngày tải lên: 13/12/2013, 01:16

... alt="" 6 Power Transmission and Distribution product of the square of the current flowing through the conductor and its resistance: P (Power) in watts = E × I; or IR × I = I 2 R and energy = Power ... apparent power. From Figure 1-5 Power factor = wa tt s EI = cos θ where E = effective voltage, I = effective current, and θ is their angular displacement in phase. Figure 1 -5. Pow...

Ngày tải lên: 18/02/2014, 22:20

... under the subtransmission line. FIGURE 4.13 Service drop. © 2001 CRC Press LLC References Electric Power Research Institute, Transmission Line Reference Book, 345 kV and Above, Electric Power Research ... Electric Power Distribution System Engineering, Wiley, New York, 1986. Gonen, T., Electric Power Transmission System Engineering, Wiley, New York, 1986. Zaborsky J.W. and Ritten...

Ngày tải lên: 05/03/2014, 16:20

... & Sons, New York, 1996. IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus—Part 1: Oil Filled Power Transformers, Regulators, and Reactors, ANSI=IEEE Std. 62-199S. Guide for ... eyard S&C Electric Company Ahmed Elneweihi British Columbia Hydro & Power Authority Robert Haas Haas Engineering Glenn W. Swift APT Power Technologies 1.1 Types of Transformer Faul...

Ngày tải lên: 21/03/2014, 12:08

... the field normally excited. The power system will then drive the generator as a motor. A motoring condition may develop if a generator is connected improperly to the power system. This will happen ... implementation of a sequential tripping function. If the following three conditions are met, (1) the real power is below a negative pre-set threshold SET_1, (2) the steam valve or a differe...

Ngày tải lên: 21/03/2014, 12:08

... present in the considerations surrounding transmission line protection. Since transmission lines are also the links to adjacent lines or connected equipment, transmission line protection must be compatible ... that are imposed by this choice. Power line carrier uses the protected line itself as the channel, superimposing a high frequency signal on top of the 60 Hz power frequency. S...

Ngày tải lên: 21/03/2014, 12:08

... Among the phenomena, which create the power system, disturb- ances are various types of system instability, overloads, and power system cascading [1–5]. The power system planning has to account ... limit. Overload of one, or a few power system elements may lead to a cascading overload of many more elements, mostly transmission lines, and ultimately, it may lead to a complete power...

Ngày tải lên: 21/03/2014, 12:08

... on power distribution feeders, IEEE Trans. on Power Delivery, 5, 905, Apr. 1990. Gail, A.W. and Nielsen, O.M., Wavelet analysis for power system transients, IEEE Computer Applications in Power, ... relaying, IEEE Trans. on Power Delivery, 11, 1301, July 1996. Chen, M.M. and Breingan, W.D., Field experience with a digital system with transmission line protec- tion, IEEE Trans. on P...

Ngày tải lên: 21/03/2014, 12:08