Electrical engineering and electrical machines - Industrial electric power systems

Electrical engineering and electrical machines - Industrial electric power systems

Reading time: 2 minute

Authors: I. Dumitrescu, D. Calueanu, A. Heler, R. Morar, V. Nitu, N. Racoveanu
Publisher: Didactica si pedagogica, Bucharest
Year of publication: 1983

What is electrical engineering?

"Electrotechnics" has as object of study technical applications of electrical and magnetic phenomena.

These applications can be: with a general character (such as: electric measuring devices, electric drive motors, electric lighting installations, electrothermal installations, etc.) or with a specific character for a certain technological process (such as: electrical installations for the elaboration of aluminum, ovens electrical for heat treatments, installations for electric welding, installations for hardening by high frequency currents, electrical devices for automation, etc.).

From the point of view of the energy level (of the powers) that intervene, the applications can be in the field of the so-called "strong currents" (from industrial technological installations), or al "weak currents" (telecommunications, automatic data processing, electronic equipment, etc.).

What does the paper present?

In this book, only the general applications of strong currents are explained in detail.

From the extremely vast material that a general work of electrical engineering and electric cars can have, only those parts that can ensure that electrical training of future engineers have been selected and developed, which will allow them in their practical activity to solve basic problems such as: the choice of technologies depending on their electro-energetic component, the rational use of machines, installations, devices and other devices that also include electrical parts.

The structure of the paper

HEAD. 1. Direct current linear electrical circuits

1.1. Electrical circuits
1.2. Analysis of direct current regimes
1.3. Calculation of linear electrical circuits of direct current

HEAD. 2. Linear electrical circuits of alternating current

2.1. Variable regime of electrical circuits
2.2. Sinusoidal regime of electrical circuits
2.3. Methods for calculating linear sinusoidal alternating current networks
2.4. Alternating current circuits in sinusoidal regime with magnetic couplings
2.5. Three-phase alternating current circuits in sinusoidal regime

HEAD. 3. Special issues in the study of electrical circuits

3.1. Transistor regime of electrical circuits
3.2. Calculation of nonlinear electrical circuits
3.3. Cuadripol

HEAD. 4. Magnetic circuits

4.1. Getting started
4.2. Magnetic materials
4.3. Calculation of magnetic circuits
4.4. Some applications

HEAD. 5. Measurement of electrical and magnetic quantities

5.1. Introductory elements
5.2. Magnetoelectric devices
5.3. Electromagnetic devices
5.4. Electrodynamic devices
5.5. Induction devices
5.6. Thermal appliances
5.7. Electrostatic devices
5.8. Electronic devices
5.9. Measuring the intensity of the electric current
5.10. Electrical voltage measurement
5.11. Resistance measurement
5.12. Impedance measurement
5.13. Measuring the capacity of electric capacitors
5.14. Inductance measurement
5.15. Measurement of electrical powers
5.16. Electricity measurement
5.17. Power factor measurement

HEAD. 6. Electric cars

6.1. The electrical transformer
6.2. DC machine
6.3. Asynchronous machine
6.4. Synchronous machine

HEAD. 7. Industrial electric power systems and technological energy elements

7.1. Electric power system
7.2. Electrical supply systems in industrial enterprises
7.3. Calculation of power and energy losses
7.4. Rational use of electricity

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