IOSR Journal of Electrical and Electronics Engineering PP 01-08 www.iosrjournals.org
... From Table-2, it is shown that how the output of rogowski coils can be coupled with the distance relay in Fig.13. As the fibre optics communication port is provided in the distance relay setup therefore the conversion from electrical to optical signal is needed. Also the output of rogowski coil can ...
... From Table-2, it is shown that how the output of rogowski coils can be coupled with the distance relay in Fig.13. As the fibre optics communication port is provided in the distance relay setup therefore the conversion from electrical to optical signal is needed. Also the output of rogowski coil can ...
Poor input power factor
... Poor input power factor at low loads with SCR High Input harmonics, input and output filters needed. CMV is transferred to the transformer winding Low overall efficiency due to transformer and high switching losses. ...
... Poor input power factor at low loads with SCR High Input harmonics, input and output filters needed. CMV is transferred to the transformer winding Low overall efficiency due to transformer and high switching losses. ...
Elektroniczne Układy i Systemy Zasilania
... Calculation of wire cross section area (copper strip, litz wire) for secondary winding resulting from secondary current RMS value ISrms=nIprms Checking if it is enough space to place windings in the core (bobbin) window area – required isolation and winding arrangement according to safety standards ...
... Calculation of wire cross section area (copper strip, litz wire) for secondary winding resulting from secondary current RMS value ISrms=nIprms Checking if it is enough space to place windings in the core (bobbin) window area – required isolation and winding arrangement according to safety standards ...
Document
... to external circuit • In practice, wire makes many (thousands of) loops to get a larger voltage – each loop adds to voltage ...
... to external circuit • In practice, wire makes many (thousands of) loops to get a larger voltage – each loop adds to voltage ...
Charge to Mass Ratio of the Electron
... 3. Turn on the power supply for the Helmholtz coils and adjust the value of the current until the electron beam is straight. One way to do this is to adjust the beam until it is aligned w ...
... 3. Turn on the power supply for the Helmholtz coils and adjust the value of the current until the electron beam is straight. One way to do this is to adjust the beam until it is aligned w ...
SAMPLE ELECTRICAL PI QUESTIONS 1. Why heat produce in AC
... 35. What is power quality meter ? Answer:Power Quality meters are common in many industrial environment. Small units are now available for home use as well. They give operators the ability to monitor the both perturbations on the power supply, as well as power used within a building, or by a single ...
... 35. What is power quality meter ? Answer:Power Quality meters are common in many industrial environment. Small units are now available for home use as well. They give operators the ability to monitor the both perturbations on the power supply, as well as power used within a building, or by a single ...
Products - Naturesound.us
... Naturesound, a focus on the audio system design and audio production of the new enterprise, the new generation of power of the audio field,including speaker、amplifier and headset ，With a high level of ease of use and adaptability. It can be widely applied to KTV, stage, conference rooms, outdoor bro ...
... Naturesound, a focus on the audio system design and audio production of the new enterprise, the new generation of power of the audio field,including speaker、amplifier and headset ，With a high level of ease of use and adaptability. It can be widely applied to KTV, stage, conference rooms, outdoor bro ...
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.