Quality Of Electrical Energy Networks
... and detect disturbances in your electrical network. Use portable analyzer to measure power factor and existence of harmonics, and analyze your consumed electrical power. Eliminate disturbances in electrical network and save money. Use measuring system for monitoring and analyzing your electrical pow ...
... and detect disturbances in your electrical network. Use portable analyzer to measure power factor and existence of harmonics, and analyze your consumed electrical power. Eliminate disturbances in electrical network and save money. Use measuring system for monitoring and analyzing your electrical pow ...
14 Microwaves
... improving the systems linearity, and helps lower the bit error rate to 10 -13. The equalizer compensates for group delay caused by the up-converter bandpass filter. The filter strips off one of the sidebands created by the heterodyne operation. Each major component after the up-converter is followed ...
... improving the systems linearity, and helps lower the bit error rate to 10 -13. The equalizer compensates for group delay caused by the up-converter bandpass filter. The filter strips off one of the sidebands created by the heterodyne operation. Each major component after the up-converter is followed ...
LB3419962001
... efficiency, minimum number of devices, and low cost, this converter is attractive for high-voltage and high-power applications. The analysis and design considerations of the converter are presented. A prototype was implemented for an application requiring a 5-kW output power, an input-voltage range ...
... efficiency, minimum number of devices, and low cost, this converter is attractive for high-voltage and high-power applications. The analysis and design considerations of the converter are presented. A prototype was implemented for an application requiring a 5-kW output power, an input-voltage range ...
Unit 40 Typical Operating Conditions
... • Higher supply voltages result in lower compressor currents • Overloaded compressors may still draw low current if the voltage is high • Nameplate currents are usually the high end of the operating range ...
... • Higher supply voltages result in lower compressor currents • Overloaded compressors may still draw low current if the voltage is high • Nameplate currents are usually the high end of the operating range ...
- aes journals
... PWM DC-DC converters and DC-AC inverter topology employed in a power system, [1], [2], [3]. In this mode, a specific current is turned on or off at a specific level of voltage whenever switching occurs, as shown in Fig. 1, [3]. By applying, this types of application – specific resonant inverters use ...
... PWM DC-DC converters and DC-AC inverter topology employed in a power system, [1], [2], [3]. In this mode, a specific current is turned on or off at a specific level of voltage whenever switching occurs, as shown in Fig. 1, [3]. By applying, this types of application – specific resonant inverters use ...
3
... Introduction: Worldwide series capacitors have been extensively used for improving power factor and thereby the power transmission. While it has been known that series capacitors can cause selfexcited oscillations at low frequencies (due to low X/R ratio) or at Subsynchronous frequencies (due to ind ...
... Introduction: Worldwide series capacitors have been extensively used for improving power factor and thereby the power transmission. While it has been known that series capacitors can cause selfexcited oscillations at low frequencies (due to low X/R ratio) or at Subsynchronous frequencies (due to ind ...
1. electrical system - Bureau of Energy Efficiency
... transformers. High voltage transmission is used so that smaller, more economical wire sizes can be employed to carry the lower current and to reduce losses. Sub-stations, containing step-down transformers, reduce the voltage for distribution to industrial users. The voltage is further reduced for co ...
... transformers. High voltage transmission is used so that smaller, more economical wire sizes can be employed to carry the lower current and to reduce losses. Sub-stations, containing step-down transformers, reduce the voltage for distribution to industrial users. The voltage is further reduced for co ...
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.