# ELECTRICAL ENGINEERING A

iten
Code
66017
2017/2018
CREDITS
6 credits during the 3nd year of 8721 Pleasure Craft Engineering (L-9) LA SPEZIA
SCIENTIFIC DISCIPLINARY SECTOR
ING-IND/31
LANGUAGE
Italian
TEACHING LOCATION
LA SPEZIA (Pleasure Craft Engineering)
semester
1° Semester

## OVERVIEW

To be able to dimension a shipboard electric circuit, to know the concerned electric quantities and of their measures, read and interpret simple electric and logic circuits.

## AIMS AND CONTENT

LEARNING OUTCOMES

To provide basic theoretical knowledge of electrical and electronic devices: behavior of circuits in transient and in steady state operation, measures of voltage, current and power; operation of electrical machineries, electronic devices and logic circuits; schematic diagrams and energy balance on board.

TEACHING METHODS

60 hours theory lectures

SYLLABUS/CONTENT

Lumped circuits. Definition of lumped circuits and elements. Voltage and current. Resistivity and resistance, Ohm’s law. Characteristic curve of ideal lumped element.

Lumped circuits analysis. Kirchhoff’s current law (KCL) and Kirchhoff’s voltage law (KVL). Circuit analysis. Superposition method, mesh and node anaysis. Thevenin and Norton equivalent network. Numerical analysis example. Associated reference directions, power and energy. Transient in electrical circuits. Linear capacitor and inductor charge and discharge.

Sinusoidal steady state analysis. Alternating voltage and current. Peak and root mean square value. Effective value and phasors. Impedance and admittance. Sinusoidal steady state response calculated by the phasor method. Power and electric energy in A.C. circuits. Real or active power, reactive power, apparent power and complex power. Three-phase systems: star and triangle connection.

Electrical measurement. Voltage, current, power measurements in AC and DC circuits.

Electronic devices and amplifiers. Introduction to semiconductors, diodes, BJT transistors, amplifiers, gain and distortion. Operational amplifiers. Digital circuits and Boolean algebra. Logic gates. AND-OR and OR-AND logic synthesis.

Electrical machineries. AC and DC generators, AC and DC motors, transformers and converters.

Marine electrical systems design. Power and energy balance on board. How to create a balance between the energy produced and the energy consumed. Maximum power consumption. Design electrical schematic diagrams.

Lectures supplied.

G. Biorci, Elettrotecnica: circuiti, UTET;
Kuh, Desoer: Fondamenti di teoria dei circuiti;
Olivieri, Ravelli: Elettrotecnica - Volume secondo - Macchine elettriche;
Olivieri, Ravelli: Elettrotecnica ed Elettronica - Volume unico.

## TEACHERS AND EXAM BOARD

Office hours: Giulio Barabino tel. (+39) 010353 - 2778 giulio.barabino@unige.it

Exam Board

GIULIO BARABINO (President)

DANILO TIGANO

## LESSONS

TEACHING METHODS

60 hours theory lectures

LESSONS START

1st semester - third year

Class schedule

All class schedules are posted on the EasyAcademy portal.

## EXAMS

EXAM DESCRIPTION

Oral exam

ASSESSMENT METHODS

Oral exam

Exam schedule

Date Time Location Type Notes
16/01/2018 09:30 LA SPEZIA Orale
30/01/2018 09:30 LA SPEZIA Orale
15/02/2018 14:30 LA SPEZIA Orale
05/06/2018 09:30 LA SPEZIA Orale
19/06/2018 09:30 LA SPEZIA Orale
03/07/2018 09:30 LA SPEZIA Orale
04/09/2018 09:30 LA SPEZIA Orale