5.7 Necessity of D.C. Motor Starter At starting, when the motor is stationary, there is no back e.m.f. in the armature. Consequently, if the motor is directly switched on to the mains, the armature will draw a heavy current (Ia = V/Ra) because of small armature resistance. As an example, 5 H.P., 220 V shunt motor has a full-load current of 20 A and an armature resistance of about 0.5 . If this motor is directly switched on to supply, it would take an armature current of 220/0.5 = 440 A which
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CURRICULUM VITAE NAME: RONALD KIPCHIRCHIR KIBETT DATE OF BIRTH: 17th FEBRUARY , 1986 MARITAL STATUS: Single POSTAL ADRESS: P.O BOX 3521-20100 MOBILE PHONE NUMBER: +254 725 623 391 E-MAIL ADDRESS: kibetronald@yahoo.com NATIONALITY: Kenyan LANGUAGES: English and Kiswahili PERSONAL PROFILE * Committed and visionary to achieving tangible results under minimum or no supervision. * Have innovative drive and skills to motivate others
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Chapter I Introduction and Background of the Study Introduction One of the major problems of our country is the limited supply of electricity. And as a researcher we created a simple way on how we charge electrical energy from huma/mechanical energy or pedal power with the use of our Bicycle Charger. A Pedal Powered generator provides a method of generating electricity by means of a modified exercise bike for use in energy storage and running portable devices. Human.mechanical energy is converted
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Assignment 1: Cable Testers Wire-Map Testers A wire-map tester transmits signals through each wire in a copper twisted-pair cable to determine if it is connected to the correct pin at each end. Wire-map testers detect transposed wires, opens, and shorts which are all problems that can render a cable useless. A wire-map tester consists of a remote unit that you attach to the far end of a connection and the battery-operated, handheld main unit that displays the results. Typically, the tester displays
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Environmental Concerns Technology is an ever-changing entity. As soon as a company goes through the time and expense of upgrading their hardware and technology, new technology emerges in the industry. With all of the new and emerging technology, the concern of what to do with the old technology and how to dispose the old so that the company can install and use the new technology. One of the biggest concerns when recycling old hardware is the effects that the recycling process will have on the
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related to manual labor. To say that he taught me a lot is an understatement. I learned how to fill fire extinguishers at the age of 8. I also learned basic electrical wiring and was able to do complex motor control by the time I was 18. By the time I was 21, I was a certified welder in 4 different welding processes. Most recently, I built an electrical contracting business with 15 employees, and over $2 million dollars in yearly sales. My point is that I do very well with “hands-on” work. When my Career
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The Combination of Cells and Resistors in a Circuit Name: Emmanuel BALOME ID Number: 20140385 Group Number: A2 Lab Partners: * Christopher BAGME * Leandra BANIYAMAI * Amex BATEME * Kingston BOB * Natalie BROWN Abstract Batteries and resistors can be connected in both series and parallel circuits where the current and voltage running through them can be altered. Batteries connected in series give off large amounts of electromotive force while the reverse happens when
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light coming from the sun to useful electricity. In the case of LAWANG BATO NATIONAL HIGH SCHOOL, their PV system supplies the School library and T.L.E. room, wherein the reality this places is not commonly used by the students. As a student of Electrical Engineering and knowledgeable on this matter, I suggest that instead of supplying those places why not give the free electricity to the rooms used by the majority of the students of LBNHS. As I also recall waste of electricity encounter in weekends
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University of Florida which helped him receive a Silver Knight Award in 1982. When he enrolled at Princeton University he planned to pursue a degree in physics which he later changed to Electrical Engineering and Computer Science. He graduated in 1986 as a summa cum laude, Phi Beta Kappa with a Bachelor of Science in Electrical Engineering and Computer Science. He worked on Wall Street in the computer science field and then worked on building a network for international trade for a company known as Fitel
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decision to convert the unit from fixed to adjustable blade operation. The conversion not only replaced the turbine runner but required the integration of a blade control system to work with the existing governor. In addition, the mechanical and electrical capabilities of the existing generator were evaluated to address the increased turbine output and higher overspeeds. The hydraulic and mechanical design aspects
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