B020438 - INDUSTRIAL ELECTRICAL SCIENCES

English if required

Operational theoretical introduction to electrical applications used in the industrial field such as: three-phase asynchronous motors and their drives, single-phase and three-phase transformers, direct current machines and their drives, alternators, special motors and related drives.Photovoltaic plants fundamentals.

A. Reatti, F. Corti, "Efficienza Energetica. Ottimizzazione tecnico economica delle utenze elettriche", Esculapio, 2019, ISBN:9788893851145

Elettrotecnica Allan R. HambleyCuratore: F. Grasso, A. Luchetti, M. C. PiccirilliEditore: PearsonCollana: Prentice HallEdizione: 4Anno edizione: 2009Tipo: Libro universitarioPagine: 542 p., ill. , BrossuraEAN: 9788871925561

P.C. Sen "Principles of Electric Machines and Power Electronics", Third Edition ,
John Wiley & Sons Inc, 2021

techniques and methods (and their limitations) in non-technical fields.
CT1#B049 Written technical communication (reports, deliverables) CT2#B049 Coordinated work group
CT3#B049 Development of an adequate expression and technical discussion of own arguments
CT4#B049 Graphic representation and communication (drafting of diagrams, graphs and tables)
CT5#B049 Understanding of technical standards
CT6#B049 Conducting bibliographic research using the main resources (libraries, scientific databases, etc.)
CT7#B049 To respect commitments and deadlines
CT8 Communication through presentations and web systems

Knowledge of the methods of analysis of the electric circuits in continuous and sinusoidal steady state.Power in electrical circuits.

Frontal lessonsLaboratory ExercisesGuided ToursComputer Simulations

Intermediate tests. The intermediate tests consist, in each case, of 3 exercises aimed at verifying knowledge on three-phase systems, on electric machines, on electric drives.
CT1#B049 Written technical communication (reports, deliverables) CT3#B049 Development of an adequate expression and technical discussion of own arguments
CT4#B049 Graphic representation and communication (drafting of diagrams, graphs and tables)
CT7#B049 To respect commitments and deadlines
Oral interview
The oral exam consists of an interview aimed at evaluating the student's communication skills and at bringing out the knowledge of the topics discussed and discussed in the course. The students also have the chance to prepare group designs.
CT1#B049 Written technical communication (reports, deliverables) CT2#B049 Coordinated work group
CT3#B049 Development of an adequate expression and technical discussion of own arguments
CT4#B049 Graphic representation and communication (drafting of diagrams, graphs and tables)
CT5#B049 Understanding of technical standards
CT6#B049 Conducting bibliographic research using the main resources (libraries, scientific databases, etc.)
CT7#B049 To respect commitments and deadlines
CT8 Communication through presentations and web systems
Verified knowledge
CC5#B049 Knowledge and understanding of the principles of industrial electro-technics, electrical machinery, industrial robotics and controls used in industrial plants.
CC10#B049 Knowledge and understanding of applicable engineering techniques and methods (and their limitations) in non-technical fields.
Applicative and Cognitive Skills to be verified
CA5#B049
Applying knowledge and understanding related to the most appropriate methods of analysis, modelling, verification and experimentation to design, analyze and test machines and plants. This includes: the interpretation and drafting of mechanical parts and machines (also using dedicated CAD systems); the sizing and the functional and structural verification of components and mechanical groups subjected to static and fatigue stress; the functional setting of the design of a mechanical system, applying the principles of kinematics and static principles; analysis of the characteristics of metallic and polymeric materials for the production; the choice of the best production process aimed at the creation of mechanical components; analysis and design of production



systems including the study of reliability, safety and economic and environmental sustainability.

Rotating magnetic field: Relation between angular velocity of the rotating magnetic field, number of pole pairs and rotational speed. Principles of Operation of the Asynchronous Motor with Squirrel Cage Rotor. Outline of the components of the equivalent circuit in the phasor domain and its use by derivation of the mechanical torque expression. Use of the motor in regenerative braking and counter-current braking mode. Starting current problem and starting methods of the asynchronous motor and methods for containing the starting current values.
The topics foreseen in the course of Electrical Machines at the Master's degree are NOT COVERED, such as: Wound rotors. Vector equations of the asynchronous machine, sliding. Magnetizing inductance. Equivalent circuit in steady state. Torque-slip relationship. Mechanical vacuum and locked rotor tests. Determination of the parameters of the equivalent circuit. Yield. Starting and braking, speed control.
Notes on single-phase induction motors. Direct current machines: outline. Notes on brushless machines.
Basic concepts of lighting technology and related legislation. Light sources. LED lamps.
Lighting fixtures.
Photometric curves
Efficiency of lighting systems with LEDs.
Economic technical examples of efficiency improvements in lighting systems
Transformers for MV / LV user cabins
Notes on the sizing criteria of photovoltaic fields.
Electrical Safety: Danger of electric current. Perception, tetanization and ventricular fibrillation thresholds. Diagram of conventional danger zones for sinusoidal currents at 50-60 Hz. Electrical resistance of the human body. Voltage danger limits. Limit contact voltage. Low voltage distribution systems. Overcurrent protection. Thermal, magnetic, magnetothermic switches, fuses. Protection from direct contacts. Protection from indirect contacts. Ground plant. Earth resistance. Differential switch. Outline of CEI legislation and standards.

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