Electrical and Computer Engineering Commons^™

A Discussion Of Electric Welding, Peter Fergus Thompson

Bachelors Theses

"This thesis deals with the different processes, methods and uses of Electric Arc Welding; and tests made in the laboratory with Direct and Alternating Current"--page iii.

Transmission Of Electrical Energy At 220,000 Volts, Robert Wilhelm Ahlquist

Bachelors Theses

"A. E. Silver at the Annual Convention of the A.I.E.E. in 1919 gives some of the reasons why 220,000 Volt transmission is a logical and feasible commercial proposition. He also gives some of the main features of the undertaking...Owing to the great scope of this paper it has been thought necessary to generalize on the discussion of the first two topics and to treat the next two in more detail"--Statement of Scope of this Paper, pages 3-4.

Design Of High Tension Outdoor Substation, Joseph Worley

Bachelors Theses

"The present day tendency appears to be toward the more frequent use of outdoor substations, where not only the section disconnecting switches, but also transformers, lightning arresters, and indeed all high tension equipment, are exposed to the weather. The control of local feeder circuits at the lower pressures would be by means of switch-panels in cheaply constructed houses erected near the transformers"--Introduction, page 3.

Automobiles Displace Trolley Line In Old Southern City, Department Of Library Special Collections

Research Collections

No abstract provided.

An Experimental Study Of The Cathode Fall In Helium And Argon With Wire Cathodes, L. G. Raub

University Studies (University of Nebraska) (1888–1984)

It was recognized rather early in the study of the phenomena of discharge of electricity through gases that the ordinary laws of conduction as found in solid and liquid conductors are not applicable to gases. It was shown by Zeleny and independently by Child that Ohm's law by no means represents the distribution of potential between electrodes in an ionized gas, but that the potential gradient is large in the vicinity of the electrodes, and not uniform throughout the space between them. When the pressure of the gas surrounding the electrodes is reduced to one or two millimeters and a …

The Design And Construction Of A Power Transformer, James M. Johann, George P. Nugent

Bachelors’ Theses

Usually one coil of the transformer has many more turns of wire than the other, when the coil of few turns is the primary, the transformer takes a large current at a low potential and delivers a smaller current at high potential. This is called a step up transformer. When the coil of many turns is the primary the transformer takes small current at high potential and delivers greater current at lower potential. This type is called a step down transformer.

A Thesis Presented To The President And The Faculty Of Marquette University For The Degree Of Bachelor Of Science In Civil Engineering And Bachelor Of Science In Electrical Engineering, Anthony B. Czachurski, Benjamin D. Ratke, Joseph G. Casey, William H. Stephan

Bachelors’ Theses

In the work covered by this thesis it is desired to examine an undeveloped water power for the purpose of producing electrical energy as a commercial comodity. Experience has taught that it is best to ascertain first where the product will find its market, and to follow up a satisfactory showing at that end by determining the power capacity of the source, the feasibility of harnessing the same, and the cost of accomplishing this. This program would be adopted in any commercial enterprise to insure a reliable conclusion, and will be followed as closely as possible in the work covered …

Commutation, John Th. Mueller, Edward J. Blackwell

Bachelors’ Theses

The E.M.F. induced in the armature conductors of practically all direct current generators is alternating, and in order to obtain a unidirectional E.M.F. at the terminals of the the machine, it is necessary to reverse the connection at the moment the induced E.M.F. changes its direction.

The Design And Construction Of A Current Transformer, Henry A. Schmitz Jr., Jas. W. Murphy

Bachelors’ Theses

The transformer is a piece of apparatus used to transform alternating current power, from high voltage and low current to low voltage and high current or vice versa. It consists of a magnetic circuit of laminated iron linking two separate and distinct coils of wire. Alternating current is supplied to one of these coils, called the primary, and this alternating current causes rapid reversals of magnetic flux through the magnetic circuit, these reversals of flux induce an alternating electromotive force in the other coil, called the secondary, which delivers alternating current to a receiving circuit. The laminated iron which forms …

Lignite Producer Plant, Harry J. Read, G. R. Thatcher

Undergraduate Theses and Senior Projects

No abstract provided.

A Study Of Induction Motors, Michael P. Valle

Bachelors’ Theses

The induction rotor is tho most popular type of alternating current motor, and finds a wide field of application, Its action is based on the principle of the revolving magnetic field produced by alternating current displaced in phase relative to each other. At least two currents of different phase are necessary in order to produce a revolving field.

A Test To Determine The Operating Efficiency Of A Steam Driven Electric Power Plant, Walter H. Rosemeyer, Edward Walter Kane

Bachelors’ Theses

In this test it was desired to determine the amount of water evaporated per pound of coal, and the pounds of steam consumed by main engine per kilowatt-hour output. Because of the existing conditions the test was run on only one boiler but on account of the similiarity of construction the results on the other boilers were assumed to be practically the same. The coal used was Hocking Valley Screenings, abituminous coal, which, from tests conducted by the engineer to determine the fuel best suited to the conditions of the plant, was found to give the most economical results. Since …

A Design Of An Electrical Power Plant, B. C. Russell

Undergraduate Theses and Senior Projects

No abstract provided.

Energy Loss In Commercial Condensers, Walter Roland Allen

Electrical and Computer Engineering ETDs

The investigation of the energy loss in condensers is one which electricians and experimenters have long carried on. Their efforts have been restricted chiefly to alternating currents. Many methods have been proposed and used with varying success. The losses in condensers are due to dielectric hysteresis and leakage. That the dielectric of a condenser becomes heated when an alternating current is applied to terminals has long been known. A condenser which has been charged does not lose its entire charge when it is discharged, part of it remaining as a residual charge. Kleiner used the thermo-couple embedded in the dielectric …

Comparative Observations On The Evolution Of Gas From The Cathode In Helium And Argon, Clarence A. Skinner

University Studies (University of Nebraska) (1888–1984)

No abstract provided.

Evolution Of The Dynamo, Ralph Nelson Soule

Student and Lippitt Prize Essays

This essay supplies an extensive history of electricity beginning in 600 BC to 1900, chronicling the evolution of the dynamo and its uses.

Efficiency Of The Electric Lighting Plant Of The Rhode Island College Of Agriculture And Mechanic Arts, John Joseph Fry

Student and Lippitt Prize Essays

A study of the functionality of the electric system at Rhode Island College (University of Rhode Island).

Electrolysis Mitigation Of The Underground Telephone Cable Plant Of The City Of Green Bay, Wisconsin, William J. O'Connor

Bachelors’ Theses

Prior to the fall of 1915, the Wisconsin public Service Company of Green Bay operated an electric street railway with an uninsulated negative rail return in the city of Green Bay, the track network with its relation to the underground cable sheaths of the Wisconsin Telephone Company as shown on the General Condition Map.

The Design Of An Isolated Storage Battery Plant, Ottomar Henry Henschel, Joseph Anthony Walter

Bachelors’ Theses

This thesis is respectfully submitted to the faculty of: the College of Applied Science and Engineering of Marquette University of Milwaukee Wisconsin by Ottomar Henry Henschel for the Degree of Bachelor of Science in Electrical Engineering, and Joseph Anthony Walter for the Degree of Bachelor of Science in Electrical Engineering.

With the object of divorcing the electrical equipment from the lines or The Milwaukee Electric Railway & Light Company, and thereby hoping to materially cut down the operating expenses of the University plant, this storage battery plant has been designed.

How Electricity May Be Used To Operate Machinery, John Franklin Knowles

Student and Lippitt Prize Essays

Explores the uses of electricity in a machine shop in shifting from belt and shaft systems to the use of electric plants.