Electrical drives and power electronics TESTS · The synchronous machines are associated with the names of Ferraris · Name the scientists who first studied electrical phenomena Coulomb · The DC machines are associated with the names of Jacobi Henry · The leading companies in the world market of electrical drive engineering are Mitsubishi · · The electromagnetic torque is born in air gap · What kind of drives the majority of drive systems present low accuracy · The induction machines are associated with the names of Dolivo-Dobrovolsky Tesla · One of the first eletrical motors has been built by Jacobi · Electromagnetic efficiency is measured in tesla · Time constants are measured by ms s hours · Who is the author of the first electrical motor Henry · Which rectifier cannot be built without a transformer 3-phase midpoint · Call the benefits of 3-phase rectifiers upon the 1-phase ones output voltage · Which rectifier has ...
docstxt/14458523658386.txt
docstxt/13960326893803.txt
11 hinnatud tunnikontrolli/testi; üks variant igast testist
docstxt/13960326893887.txt
docstxt/13960326893325.txt
docstxt/14458524445766.txt
docstxt/14458512873688.txt
3. Quiz on Electrical Drive Motors and Models 1. What types of motors have the single-sided excitation? -(linear) synchronous 2. What types of motors have the dc excitation? - 3. What types of motors have the permanent magnet excitation? -synchronous, DC 4. What types of motors have the dc supply? -DC, synchronous 5. What types of motors have the slip rings? -induction 6. What types of motors are the brushless motors? -DC, synchronous 7. What orthogonal reference frames do you know? -(,)stator; (d,q)rotor;(x,y)arbitrary 8. What natural reference frames do you know? -3 phase 9. What stationary reference frames do you know? -stator 10. Write the frequency equilibriums that you know. -induction:w1=w2+w12;synchronous:w1=w12;DC:w2=-w12 11. What is the result of the mutual motion of the stator and rotor windings? -torque??? 12. What variables does the flux depend on? -L12 I12? L ja I 13. Write the formulae of the synchronous speed. -2*pii*f1/...
Solar power Tanel terras The basics of solar power Solar power is the conversion of sunlight into electricity Photovoltaics Concentrated solar power Concentrated solar power · Electrical power is produced when the concentrated light is converted to heat, which Click to edit Master text styles drives a heat engine connected to an Second level electrical power generator or powers a Third level thermochemical reaction Fourth level Fifth level Photovoltaics Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into di...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 1 on Electronics and Semiconductor Engineering Linear Circuits Student AAVB-41 Tallinn 2008 Exercise 1.1. RL circuit Quantity Calculated Experimental value value Umax, V 14,14 14,14 I, mA 983 983 UR, V 9,82 9,81 UL, V 1,85 1,85 -10,7 -10,6 -2,0 -1,7 -0,15 -0,15 Comparative data table Conclusion Calculated and experimental results...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 2 on Electronics and Semiconductor Engineering Filters Student AAVB-41 Tallinn 2008 Exercise 2.1. Low-pass filter Circuit diagram Timing diagram and frequency responses High-pass filter Circuit diagram Timing diagram and frequency responses Calculations Quantity Calculated Experimental value value Umax, V 14,14 14,14 I, mA 0,0044 0,0044 UR, V 4,47 ...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Electronics and Semiconductor Engineering OP AMPS Student AAAB-41 Tallinn 2011 Exercise 5.1. Non.Inverting Voltage Amplifier Fig . Circuit diagram Fig . Diagrams of bandwidth versus gain. Data table Measur Calculated ed Uin R1, k R2, k KU Uout, V fc, kHz KU Uout, V fc, kHz 0,7 2 18,57 9,63 6,74 14...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 3 on Electronics and Semiconductor Engineering Diode circuits Student AAVB-41 Tallinn 2008 Exercise 3.1. Diode characteristics Fig. 3.1. Circuit diagram Timing diagram Output characteristic (forward bias only) Forward Bias Reverse Bias Umax, V UAC, Vrms Measured Calculated IA, Arms IA, Arms 0,5 0,35 0,006 0 1 0,64 0,1 0 2 1,05 4,71 ...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 5 On Electronics and Semiconductor Engineering Op amps AAVB-41 Tallinn 2008 Exercise 5.1. Non-Inverting Voltage Amplifier Fig. 5.2. Diagrams of bandwidth versus gain Data table R1,k Measur ed Calculated Uin,V R2,k K Uout,V fc,kHz K Uout,V fc,kHz 1 90 50 2,80 1,98 530,31 2,8 1,96 535,71 1 90 40 3,25 2,30 457,55 3,25 2,28 461,54 1 90 30 4,00 2,83 372,40 4 2,80 ...
Test VIII - cumulative test by Piigli, Mets, Parker, Kauler "Top delusion" question / answers are red. Test I The induction machines are associated with the names of Dolivo - Dobrovolsky, Tesla. The synchronous machines are associated with the name of Ferraris. The DC machines are associated with the names of Jacobi and Henry. The electromagnetic torque is born in air gap. The torque is proportional to the current in dc motor. Which equations are correct? P = sW; oomega = tuletis fii'st The angular frequency is 2*pi()*n / 60 ja 2*pi()f The motor torque is equal to TL + J * oomega tuletis aja järgi The inductor supplies the motor with flux. The leading companies in the world market of electrical drive engineering are: Mitsubishi. The energy balance is described by energy conservation law. The armature supplies the motor with current. The cheapest and the most r...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report Diodes Tallinn 2011 + A VS RV V D - Fig. 1.1. Circuit diagram VS - DC voltage source PS 5005, 0-50VDC/0-5A RV - Rheostat, Rmax=3600 V - DC volt meter DV-101, 200mV-200V A - DC current meter DA-103, 2mA-20mA-200mA-5A D - Diode 1N360 Voltage divider calculations RV=(US-UAC)/If(max) RV=(46,6 - 0,45)/0,1=461,5 Table 1.1. Observed data If , mA US If Uf Ir ...
1)Main machinery On a ship, the engine room, or ER, is the propulsion machinery spaces of the vessel. To increase the safety and damage survivability of a vessel, the machinery necessary for operations may be segregated into various spaces. The engine room is one of these spaces, and is generally the largest physical compartment of the machinery space. The engine room houses the vessel's prime mover, usually some variations of a heat engine - diesel engine, gas or steam turbine. On some ships, the machinery space may comprise more than one engine room, such as forward and aft, or port or starboard engine rooms, or may be simply numbered. 1.1)Main engine The engine room of a motor vessel typically contains several engines for different purposes. Main, or propulsion engines are used to turn the ship's propeller and move the ship through the water. They typically burn diesel oil or heavy fuel oil, and may be able to switch between the two....
1 Wave energy Introduction to wave energy There are several possibilities to harvest different forms of energy from the sea. One of these options is the usage of waves for the generation of electricity. The devices needed to perform this task are called wave energy converters. Wave energy is indirect solar energy in twice. At first there is the wind, which is caused by variations in atmospheric pressure due to a differential solar heating of earth's surface by the sun. Different regions of pressure drives a force which rises a movement of atmospheric air masses that causes the earths wind system. If wind strikes over the surface of an open water, waves are induced. First they are very flat with only a low level of energy. When there is a long distance over the water on which wind can attack the small ones, they became bigger and bigger with a l...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 2 Diodes Student ******* Code ****96 Group AAVB41 Tallinn 2012 2.1. Diode rectifier VD f = 9 kHz U=6V U = 19.7 V R = 96 k Figure 1. Circuit diagram Figure 2. Timing diagram VD + R = 96 k...
TALLINNA POLÜTEHNIKUM Päevane osakond ELEKTRIMOOTORI KIIRUSE AUTOMAATREGULEERIMISE SÜSTEEM Kursusetöö Õppeaine automaatreguleerimine Juhendaja: V. Purro Konsultant: V. Purro Tallinn 2010 2 Sisukord KURSUSETÖÖ ÜLESANNE..............................................................................................3 KURSUSETÖÖ ANDMED................................................................................................. 4 Sissejuhatus.......................................................................................................................... 6 2. SÜSTEEMI FUNK...
Ticket No1 1)The characteristic is called output characteristic or volt-ampere charateristic of a Rectifier Diode. 2)Rectifier Diode. 3) A is called Anode and C is called Cathode. An Anode has positive potential and therefore collects electrons in the device. Cathode has negative potential and therefore emits electrons to anode. The symbol looks like an arrow that ponts from the anode to the cathode, and reminds that conventional current flows easily from the p side(anode) to the n side(cathode). BIASING. Forward biasing. If the current in a diode is too large, excessive heat will destroy the device. Even approaching the burnout current value without reaching it can shorten its life. Therefore manufacturer's data sheet specifies the maximum forward current, that diode can withstand. This average current IF is the rate a diode can handle up to the forward direction when used a...
INTENSIIVKURSUS ”TOOTMISE AUTOMATISEERIMINE” Intensiivkursus kuulub projekti: „Energia- ja geotehnika doktorikool II” tegevuskavasse Ins. Viktor Beldjajev TÄITURMEHHANISMID Loengumaterjalid Tallinn 2010 Sisukord Tähistused ................................................................................................................................. 5 1. Sissejuhatus ........................................................................................................................... 6 2. Täiturmehhanismide olemus ............................................................................................... 7 2.1. Täiturmehhanismide klassifikatsioon .................................................................................. 7 2.2. Automaatsüsteem ....
A Course In the Design of ABS Piping Our Objectives Presented by Geoffrey D Stone FIMechE C.Eng http://waterhammer.hopout.com.au/ Provide an insight into what piping designers need & expect Define the role of the supplier & designer Learn some fundamentals of piping design Discover failure analysis techniques Share experiences of problems A Course In the Design of ABS Piping What We Shall Look at This Week ABS Material Properties Thermoplastic Pipe Design Waterhammer Analysis Typical Applications of ABS Pressure Pipe Some Anticipated Events Stages of the Design Process Representation-Drawings & Specification Calculation-Engineering & Assumptions Visualisation-Presentation of Information Validation-Testing & Commissioning Role of the ABS Pipe Supplier What the Customer Expects Avoid the following: Material Properties Accept design risk for a sale Design Criteria Accept MTO risk Design Guid...
Analog Interfacing to Embedded Microprocessors Real World Design Analog Interfacing to Embedded Microprocessors Real World Design Stuart Ball Boston Oxford Auckland Johannesburg Melbourne New Delhi Newnes is an imprint of Butterworth–Heinemann. Copyright © 2001 by Butterworth–Heinemann A member of the Reed Elsevier group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Recognizing the importance of preserving what has been written, Butterworth–Heinemann prints its books on acid-free paper whenever possible. Library of Congress Cataloging-in-Publication Data Ball, Stuart R., 1956– Analog interfacing to embedded microprocessors : real world design / Stuart Ball. p. cm. ISBN 0-7506-7339-7 (pbk...
SISUKORD ENERGY STORY................................................................................................................4 USES OF ENERGY............................................................................................................. 4 2.1 Uses of energy in homes...............................................................................................5 2.2 Types of energy used in homes.................................................................................... 6 2.3 Energy use in different types of homes........................................................................ 6 2.4 Commercial Energy Use...............................................................................................9 2.5 Industrial and Manufacturing Energy Use..................................................................11 2.6 Transportation Energy Use.................................................
1·1 Chapter 1 Routine maintenance and servicing 1 Contents Air cleaner element renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Fuel filter renewal - fuel injection engines . . . . . . . . . . . . . . . . . . . .36 Alternator drivebelt check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Hinge and lock check and lubrication . . . . . . . . . . . . . . . . . . . . . . .31 Automatic transmission fluid level check . . . . . . . . . . . . . . . . . . . . .27 ...
EHITUSTEADUSKOND Ehitustootluse instituut KUIDAS MUUDAB MUDELPROJEKTEERIMINE TERASKONSTRUKTSIOONIDE PROJEKTEERIMIST, VALMISTAMIST JA EHITAMIST? HOW ARE 3D AND BIM CHANGING THE DESIGN, FABRICATION AND CONSTRUCTION OF COMPLEX STEEL STRUCTURES? EPJ 60 LT Üliõpilane: Tanel Friedenthal Juhendaja: Prof. Roode Liias Kaasjuhendaja: Prof. Carrie S. Dossick Tallinn, 2010.a. Olen koostanud lõputöö iseseisvalt. Kõik töö koostamisel kasutatud teiste autorite tööd, olulised seisukohad, kirjandusallikatest ja mujalt pärinevad andmed on viidatud. …………………………………………….. (töö autori allkiri ja kuupäev) Üliõpilase kood: 041399 Töö vastab magistritööle esitatud nõuetele ……………………………………………… ...
3 ELEKTRIAJAMITE ELEKTROONSED SÜSTEEMID 4 Valery Vodovozov, Dmitri Vinnikov, Raik Jansikene Toimetanud Evi-Õie Pless Kaane kujundanud Ann Gornischeff Käesoleva raamatu koostamist ja kirjastamist on toetanud SA Innove Tallinna Tehnikaülikool Elektriajamite ja jõuelektroonika instituut Ehitajate tee 5, Tallinn 19086 Telefon 620 3700 Faks 620 3701 http://www.ene.ttu.ee/elektriajamid/ Autoriõigus: Valery Vodovozov, Dmitri Vinnikov, Raik Jansikene TTÜ elektriajamite ja jõuelektroonika instituut, 2008 ISBN ............................ Kirjastaja: TTÜ elektriajamite ja jõuelektroonika instituut 3 Sisukord Tähised............................................................................................................................
Sissejuhatus infotehnoloogiasse 1. Loeng Algoritm on täpne samm-sammuline, kuid mitte tingimata formaalne juhend millegi tegemiseks. Näited: a. Toiduretsept. b. Juhend ruutvõrrandi lahendamiseks Algoritmiline probleem - probleem, mille lahenduse saab kirja panna täidetavate juhendite loeteluna. Programm on formaalses, üheselt mõistetavas keeles kirja pandud algoritm. Arvutid suudavad täita ainult programme. Analoogsüsteem andmeid salvestatakse (peegeldatakse) proportsionaalselt Näit: termomeeter, vinüülplaat, foto Digitaalsüsteem (pidevad) andmed lõhutakse üksikuteks tükkideks, mis salvestatakse eraldi Näit: CD, arvutiprogramm, kiri tähtede ja bittidena Ühelt teisele: digitaliseerimine The three major comparisons of computers are: Electronic computers versus Mechanical computers...
A... AA Auto Answer AAA Authentication, Authorization and Accounting AAB All-to-All Broadcast AAC Advanced Audio Coding AACS Advanced Access Control System AAL Asynchronous Transfer Mode Adaption Layer AAM Automatic Acoustic Management AAP Applications Access Point [DEC] AARP AppleTalk Address Resolution Protocol AAS All-to-All Scatter AASP ASCII Asynchronous Support Package AAT Average Access Time AATP Authorized Academic Training Program [Microsoft] .ABA Address Book Archive (file name extension) [Palm] ABAP Advanced Business Application Programming [SAP] ABC * Atanasoff-Berry Computer (First digital calculating machine that used vacuum tubes) ABEND Abnormal End ABI Application Binary Interface ABIOS Advanced BIOS ABIST Automatic Built-In Self-Test [IBM] ABLE Adaptive Battery Life Extender + Agent Building and Learning Environment [IBM] ABM Asynchronous Balanc...
tutvu lausearvutuse keskkonnaga: http://logik.phl.univie.ac.at/~chris/gateway/formular-uk-zentral.html Millistel muutuja väärtustel on lause (Av(B&A))v(-A&(Cv(B&-C))) väär? Panna tuleb results only, 0 on väär 1 on õige Tutvu ajalooga saidis kuni II maailmasõda: http://www.maxmon.com/history.htm Loe läbi jutt ja proovi andmetega mängida: http://math.hws.edu/TMCM/java/DataReps/index.html Kahend süsteemi arvu(101101001) ->kümnend süsteemiks. Nr sisse ja bianarile punkt, ja vaatan base ten integeri kümnendarvudest annab Ecki appletis juuresoleva graafilise kujutise, teen kujundi ja vaatan base integeri mis vastab kahendsüsteemi arvule 1110001 ASCII tabelis? Nr sisse ja punkt bianari, vaatan ...teksti Kümnendsüsteemi arv 33 on kahendsüsteemis? 33 kirjutan ja Base-ten integer, vaatan bianary Loe läbi jutud Atbashi ja Caesari šifri (Caesar cipher) kohta: http://www.wikipedia.org 2 Tutvu ajalooga kuni 1970ndad: http://www.islandnet.com/~...
TaIlinna Tehnikaülikool Elektriajam ite ja jõueIektroonika instituut Eesti Moritz Hermann Jacobi Selts SUJUVKÄIWTiD JA sAGĘDĮJ$MUUNDUREņ rÕruu LEHTtA ... 'r'.. .,-.:r'i,,ili. 'r ".1 i 'Ļ 1 )- '':' : .,. 'l ..-: .- :ī- Īallinn 1 999 Sujr.rvkäivitid ia sagedusmuundLrrid' Koostanud T. Lehtla. TTÜelektriajalrrite .ļa iõrrelek1roonika instituut. Eesti Moritz Hermann Jacobi SeĮts. Taļlinrr, ...
THE W R I T E R ' S JOURNEY M Y T H I C STRUCTURE FOR W R I T E R S THIRD EDITION CHRISTOPHER VOGLER S C R E E N W R I T I N G / W R I T I N G Christopher Vogler explores the powerful relationship between mythology and storytelling in his clear, concise style that's made i this book required reading for movie executives, screenwriters, playwrights, fiction and non-fiction writers, scholars, and fans of pop culture all over the world. Discover a set of useful myth-inspired storytelling paradigms like "The Hero's Journey," and step-by-step guidelines to plot and • character development. Based on the work of Joseph Campbell, The Writers Jour...
Personaalarvutite riistvara ja arhitektuur Personaalarvutite riistvara ja arhitektuur 1. Personaalarvutites kasutatavad protsessorid. Nende tüübid ja parameetrid. Tänapäeva desktop arvutites kasutatakse peamiselt kahe konkureeriva tootja (Intel ja AMD) protsessoreid. Tootmises olevate protsessorite võrdlused on toodud allpoololevas tabelis Tabel 1. Protsessorite parameetrid (X- toetus on olemas; 0- puudub; sulgudes on märgitud protsessori taktsagedus, mille kohta antud number käib). Tabelis on loetletud sellised parameetrid nagu tootmistehnoloogia, tehnilised parameetrid (korpuse- ja pesa tüüp), elektrilised parameetrid (toitepinge ja voolutarve), soojuslikud parameetrid (temperatuur, soojusvõimsus, info temperatuurikaitselülituse kohta), sageduslikud parameetrid (siinisagedus ja sisemine taktsagedus), vahemälu suurus ja siini laius, multimeedial...
Some of the things you will learn in THE CODEBREAKERS • How secret Japanese messages were decoded in Washington hours before Pearl Harbor. • How German codebreakers helped usher in the Russian Revolution. • How John F. Kennedy escaped capture in the Pacific because the Japanese failed to solve a simple cipher. • How codebreaking determined a presidential election, convicted an underworld syndicate head, won the battle of Midway, led to cruel Allied defeats in North Africa, and broke up a vast Nazi spy ring. • How one American became the world's most famous codebreaker, and another became the world's greatest. • How codes and codebreakers operate today within the secret agencies of the U.S. and Russia. • And incredibly much more. "For many evenings of gripping reading, no better choice can be made than this book." —Christian Science Monitor THE ...
PRAISE FOR The 4-Hour Workweek "This is a whole new ball game. Highly recommended." --Dr. Stewart D. Friedman, adviser to Jack Welch and former director of the Work/Life Integration Program at the Wharton School, University of Pennsylvania "It's about time this book was written. It is a long-overdue manifesto for the mobile lifestyle, and Tim Ferriss is the ideal ambassador. This will be huge." --Jack Can eld, cocreator of Chicken Soup for the Soul®, 100+ million copies sold "Stunning and amazing. From mini-retirements to outsourcing your life, it's all here. Whether you're a wage slave or a Fortune 500 CEO, this book will change your life!" --Phil Town, New York Times bestselling author of Rule #1 "The 4-Hour Workweek is a new way of solving a very old problem: just how can we work to live and prevent our lives from being all about work? A world of in nite...
annaabi.ee 
Sisene Facebook'ga
Sisene Google'ga
Sisene LinkedIn'ga
