Alternating current electrical systems

Part 1 book "Electrical power systems technology" includes content: Power measurement fundamentals; power system fundamentals; power measurement equipment; modern power systems; alternative power systems; alternating current power systems; direct current power systems; power distribution fundamentals.

249p dianmotminh03 17-06-2024 2 0   Download

Part 1 book "Hughes - Electrical and electronic technology" includes content: International system of measurement, introduction to electrical systems, simple dc circuits, network theorems, capacitance and capacitors, electromagnetism, simple magnetic circuits, inductance in a DC circuit, alternating voltage and current, single phase series circuits, single phase parallel networks, power in AC circuits, complex notation, resonance in AC circuit, network theorems applied to ac networks,... and other contents.

498p dianmotminh03 17-06-2024 1 0   Download

Part 1 book "Hughes electrical and electronic technology" includes content: International system of measurement, introduction to electrical systems, simple dc circuits, network theorems, capacitance and capacitors, electromagnetism, simple magnetic circuits, inductance in a DC circuit, alternating voltage and current, single phase series circuits, single phase parallel networks, power in AC circuits, complex notation, resonance in AC circuits; network theorems applied to ac networks; electronic systems; passive filters,... and other contents.

578p dianmotminh03 03-06-2024 4 2   Download

Part 2 book "An introduction to electrical science" includes content: Magnetism, electromagnetism, magnetic circuits, electromagnetic induction, motor principle, transformers, capacitance, capacitors, geometry and trigonometry revision for A.C, introduction to alternating current, series alternating-current circuits, power in alternating-current circuits, parallel alternating-current circuits, summary of equations derived from phasor diagrams, power factor improvement, alanced three-phase a.c. systems

208p dianmotminh01 20-05-2024 4 4   Download

Part 2 book "Electrical and electronic principles and technology" includes content: D.c. circuit theory, alternating voltages and currents, single-phase series a.c. circuits, single-phase parallel a.c. circuits, filter networks, D.c. transients, Operational amplifiers, three-phase systems, transformers, D.c. machines, three-phase induction motors,... and other contents.

258p dianmotminh01 17-05-2024 5 3   Download

Part 1 book "Electricity for refrigeration, heating, and air conditioning" includes content: Electrical safety; basic electricity; electric circuits; electric meters; components, symbols and circuitry of air conditioning wiring diagrams; reading schematic diagrams; alternating current, power distribution and voltage systems; installation of heating, cooling, and refrigeration systems; basic electric motors; components for electric motors.

333p dianmotminh00 22-04-2024 5 3   Download

Part 2 book "Electrical and electronic principles and technology" includes content: Alternating voltages and currents, single-phase series A.C. circuits, single-phase parallel a.c. circuits, filter networks, D.C. transients, operational amplifiers, D.C. machines, three-phase systems, transformers, three-phase induction motors.

203p dianmotminh00 22-04-2024 5 3   Download

Part 2 book "Schaum’s outlines of theory and problems of basic electricity" includes content: Principles of alternating current; inductance, inductive reactance and inductive circuits; capacitance, capacitive reactance and capacitive circuits; single phase circuits; alternating current generators and motors; transformers; three phase systems; series and parallel resonance; waveforms and time constants,... and other contents.

250p muasambanhan06 01-02-2024 5 3   Download

Part 2 book "Schaum's outline of basic electricity" includes content: Principles of alternating current; inductance, inductive reactance, and inductive circuits; capacitance, capacitive reactance, and capacitive circuits, single phase circuits; alternating current generators and motors; complex numbers and complex impedance for series ac circuits; AC circuit analysis with complex numbers; transformers; three phase systems; series and parallel resonance.... and other contents.

310p muasambanhan06 01-02-2024 7 3   Download

Part 1 of ebook "Electrical circuit theory and technology" provides readers with contents including: basic electrical engineering principles; units associated with basic electrical quantities; an introduction to electric circuits; series and parallel networks; capacitors and capacitance; magnetic circuits; electromagnetic induction; electrical principles and technology; alternating voltages and currents; three-phase systems;...

309p dangsovu 20-10-2023 9 7   Download

A photovoltaic irrigation pump system was designed. The use of photovoltaic system reduces the load of increasing electric demand on government as it is alternative for conventional energy in agriculture sector. The Solar Photovoltaic (SPV) array converts solar energy directly into electricity as direct current (DC).

6p gaocaolon9 22-12-2020 16 2   Download

A brief history of HVDC and HVAC was included in the study and a key comparison between both transmission systems was done. It was discovered that Alternating Current (AC) is more expensive than Direct Current (DC) and HVDC transmission has less corona and radio interference than that of HVAC, although HVAC also has its own advantage. This study examines two ways electrical energy is transmitted and discusses what the better choice should be in the engineering community.

8p cleopatrahuynh 01-06-2020 25 1   Download

The most mechanized agricultural operations include a tractor as a primary power unit, even though the tractor itself is not particularly useful without an implement attached. Innovations and efficiency improvements in tractor engines, powertrains, and auxiliary power systems have been ongoing since tractors were invented a century ago and significant gains have been realized. However, PTO and hydraulic power systems are well established and effective for today‟s applications, the search for more versatile and efficient power transfer continues.

16p chauchaungayxua1 04-12-2019 14 1   Download

The purpose of this paper is to study the approximability of two non-linear Knapsack problems, which are motivated by important applications in alternating current electrical systems. The first problem is to maximize a nonnegative linear objective function subject to a quadratic constraint, whilst the second problem is a dual version of the first one, where an objective function is minimized.

15p thuyliebe 05-10-2018 29 0   Download

This publication deals primarily with small and medium-sized induction motors which are the most common type of alternating current motor. The combination of new materials and more sophisticated methods for calculation, design and production have made the modern three-phase induction motor a robust and reliable prime mover.

346p ckm0789 12-01-2014 133 32   Download

The amount of knowledge an electrician must possess to be able to install and troubleshoot control systems in today’s industry has increased dramatically in recent years. A continuous influx of improved control components allows engineers and electricians to design and install even more sophisticated and complex control systems. Industrial Motor Control presents the solidstate devices common in an industrial environment.

570p nguyenthai_thinh 16-03-2013 132 46   Download

Technology Pioneer Transphorm sees its mission as increasing the efficiency of voltage conversion in electronic systems. While electric transmission lines are most effective at moving alternating current over long distances, most devices operate internally on direct current. Silicon-based converters manage only to transform about 85% of the electric power. The remaining 15% is lost in heat that can damage delicate electronics.

84p doiroimavanchuadc 19-02-2013 35 4   Download

Automatic Voltage Regulator adjusts the excitation so that at the system design power factor, the voltage is correct whatever the current. If however it adjusts the excitation to give the correct voltage at other power factors, then two machines will not run in parallel. One can supply a huge leading current and the other a huge lagging current. A “droop” is needed to give a lower voltage if the power factor lags by more than the system design. This is achieved by the compounding. Faulty Compounding causes unstable sharing of kVAr which can be quite violent....

221p tuanloc_do 04-12-2012 54 8   Download

In a normal alternating current power system, the voltage varies sinusoidally at a specific frequency, usually 50 or 60 hertz. When a linear electrical load is connected to the system, it draws a sinusoidal current at the same frequency as the voltage (though usually not in phase with the voltage). When a non-linear load, such as a rectifier, is connected to the system, it draws a current that is not necessarily sinusoidal. The current waveform can become quite complex, depending on the type of load and its interaction with other components of the system.

190p kennybibo 14-07-2012 110 17   Download

Optical Amplifiers As seen in Chapter 5, the transmission distance of any fiber-optic communication system is eventually limited by fiber losses. For long-haul systems, the loss limitation has traditionally been overcome using optoelectronic repeaters in which the optical signal is first converted into an electric current and then regenerated using a transmitter. Such regenerators become quite complex and expensive for wavelength-division multiplexed (WDM) lightwave systems.

53p khinhkha 29-07-2010 79 10   Download