Electricity 4: AC/DC Motors, Controls, and Maintenance by Jeffrey J. Keljik

By Jeffrey J. Keljik

Up-to-date to the 2011 nationwide electric Code, electrical energy four: AC/DC cars, CONTROLS, and upkeep, 10e promises functional insurance of the AC/DC vehicles, controls, and the upkeep component to electric idea content material. It bargains easy accessibility to present info on DC vehicles, AC automobiles, motor regulate, electromechanical and solid-state relays and timers, synchronous vehicles, install, sensyn devices, motor upkeep, and extra. Combining thorough factors of the way platforms paintings with correct, hands-on examples of electric process operation, this article is going to assist you boost the troubleshooting abilities wanted within the box.

Show description

Read Online or Download Electricity 4: AC/DC Motors, Controls, and Maintenance PDF

Best robotics & automation books


TAB Electronics is the best identify in beginner robotics. because the 1987 free up of Gordon McComb's blockbuster robotic Builder's Bonanza hobbyists have appeared to TAB because the resource for state-of-the-art, how-to robotics titles.
These groundbreaking, seriously illustrated books clarify how one can create everythinbg from uncomplicated, easy robots to ones that stroll, see, consider, speak, hear and struggle! Written via "professors of robotics" resembling Gordon McComb and John Iovine, they're nice for newcomers in addition to skilled robotic builders.
Authoritative, cutting edge, enjoyable, and continuously some distance prior to somebody else, TAB keeps the culture with construct your individual Remote-Controlled robotic.

Moral Machines: Teaching Robots Right from Wrong

This publication combines the tips of major commentators on ethics, equipment of enforcing AI, and the hazards of AI, right into a set of rules on how machines should in attaining moral behavior.

The e-book as a rule presents a correct survey of what these commentators agree and disagree approximately. yet there is sufficient confrontation that we want a few insights into which perspectives are right (especially approximately theories of ethics) in an effort to produce worthy recommendation to AI designers, and the authors do not need these forms of insights.

The ebook focuses extra on close to time period dangers of software program that's less clever than people, and is complacent concerning the dangers of superhuman AI.

The implications of superhuman AIs for theories of ethics should light up flaws in them that are not visible whilst contemplating in basic terms human-level intelligence. for instance, they point out a controversy that any AI could price people for his or her variety of principles, which might aid AIs to go looking the distance of attainable rules. This turns out to have severe difficulties, corresponding to what stops an AI from twiddling with human minds to extend their range? but the authors are too eager about human-like minds to visualize an intelligence which might do that.

Their dialogue of the advocates pleasant AI turns out a piece careworn. The authors ponder whether these advocates try to quell apprehension approximately AI hazards, whilst i have saw beautiful constant efforts via these advocates to create apprehension between AI researchers.

Advanced Control of Piezoelectric Micro-/Nano-Positioning Systems

This booklet explores rising tools and algorithms that allow distinctive regulate of micro-/nano-positioning platforms. The textual content describes 3 keep watch over techniques: hysteresis-model-based feedforward keep watch over and hysteresis-model-free suggestions keep an eye on in keeping with and unfastened from country remark. each one paradigm gets committed consciousness inside of a selected a part of the textual content.

Towards Integrating Control and Information Theories: From Information-Theoretic Measures to Control Performance Limitations

This ebook investigates the functionality difficulty matters in networked suggestions structures. the truth that networked suggestions platforms encompass keep watch over and verbal exchange units and structures demands the mixing of keep watch over idea and knowledge thought. the first contributions of this booklet lie in facets: the newly-proposed information-theoretic measures and the newly-discovered keep an eye on functionality barriers.

Additional info for Electricity 4: AC/DC Motors, Controls, and Maintenance

Example text

Torque in the field coils. 3. A DC motor is required to maintain the same speed at no load and full load. This type of operation can only be obtained by using a _______________________________ a. series motor. b. shunt motor. c. differential compound-wound motor. d. cumulative compound-wound motor. 4. As a load is applied to a DC shunt motor the _____________________________ a. field current increases. b. CEMF increases. c. armature current increases. d. torque developed decreases. 5. The speed of a DC shunt motor __________________________ a.

The twisting force exerted on the shaft of a motor is called _____________ and is due to the magnetic field interaction of the _____________ and __________. 8. Field interpoles connected in series with the armature circuit of a motor help counteract the effects of _____________. 9. As a DC motor comes up to its rated speed, its armature current (decreases, remains the same, increases). ) 10. The main factor controlling the armature current of a DC shunt motor operating at rated speed is the ___________________________________________________ ___________________________________________________________.

The motor may reverse its direction of rotation if started under a heavy load. d. This motor develops a speed instability because the flux field decreases with a load increase. e. When starting a differential motor, the shunt field should be shorted because of the great starting current. 3. Arrange the following steps numerically in the correct sequence to test for the proper connections to operate a cumulative compound-wound motor. Place the step number in the space provided, starting with number 1.

Download PDF sample

Rated 4.92 of 5 – based on 23 votes