THE DEPARTMENT OF ELECTRICAL ENGINEERING

The rem arkable developm ent of electrical industries during th e p ast few years has created a dem and for m en skilled in th e th eo ry and practice of electrical and m echanical work. The stu d y of th e subjects arranged in \the program of Electrical Engineering is intended

4 0 BU L L E T IN OB THE

to give a general education as well as a special train in g in th e technical branches involved in the various p rac­

tica l applications of electricity in industrial operations.

General th eo ry is given in lectures and by recitations from stan d a rd text-books. In th e laboratories and shops th e operations explained in th e class-room are perform ed b y th e stu d en t, in doing which he acquired skill in h a n d ­ ling tools and instrum ents, and obtains a working knowledge of th e principles involved. Careful records of th e work done in laboratories are kept b y th e stu d en t and are handed in for suggestions and corrections a t th e end of every week.

T he U niversity is located near a great m anufacturing centre in th e grow th of which electricity is tak in g a v ery prom inent p art. Electric power generated by steam is now being distrib u ted and utilized in several large plants, some using th e th ree phase alternating system , while others are using th e direct current.

Several of th e largest w ater power developm ents in th e Middle W est are situ ated w ithin a few miles of th e U niversity. F rom this system we receive three phase altern atin g currents which furnish light for our buildings and grounds, and pow er for driving m otors in our shops an d printing office, etc., all of which are operated b y electricity.

There are num erous other transm ission lines and electrical power plants operated b y .w ater power w ithin a sh o rt distance. Our stu d en ts visit these plants accom­

panied b y an in stru cto r who points out th e applications of th e tex t-b o o k th eo ry in th e design of electrical ap p aratu s and its operation under actual working conditions.

E ach candidate for graduation m u st present a t th e end of th e Senior year an acceptable thesis em bodying th e results of a n extended original research on an

U N IV ER SITY OR NOTRE DAME 41

engineering subject, chosen a t th e beginning of th e year, with th e approval of th e head of th e departm ent.

The descriptive p a rt m ust be ty p ew ritten, and bound ill book form to g ether w ith th e drawings.

The equipm ent for th e lab o rato ry work in electrical engineering includes dynam os typical of th e various classes, accessory apparatus and m easuring instrum ents as follows: An A. C. induction m otor arranged to operate on single phase circuits w ith a condenser com­

pensator, a high frequency 1000 V. 33 K. W. com­

posite w ound Wood alternato r of th e latest ty p e w ith exiccater and a full set of sw itchboard instrum ents,

several transform ers of different capactiy, a high tension transform er for testin g insulation, an Bdison bipolar 10 K. W. 125 V. generator, a Thom pson-H ouston arc light m achine w ith regulator and fifteen lam ps, a Wood arc - m achine, capacity 25 lights, an Bdison bipolar, 3 I . W. 125 V. dynam o w ith special winding, a Van Depoele com pound wound dynam o, a special A. C.

5 H. P. dynam o or ro ta ry converter, a series wound dynam o w ith w rought iron field, num ber of small m otors, a 10 H. P. induction m otor, three phase, 220 volts. 60 cycles, a m otor generator set consistory of an adjustable speed 8 H. P., D. C. m otor, direct con­

nected to a special m ultiphase, revolving field A. C.

dynam o.

A three K. W. three phase ro ta ry converter, an eight K. W. ro ta ry converter, a set of inclined coil alternating current portable in stru m en ts, voltm eter, am m eter and w attm eter, telegraph relays, sounders, sw itchboard, etc., telephone apparatus including subscribers sets of various m odern types, a fifty drop m anual sw itchboard complete and a lot of separate drops, jacks, switches, lighting arresters, etc., autom atic telephone sw itchboard con­

tain in g first and second selector and connector switches.

4 2 BU LLETIN OF THE

in te rru p te r h eat coils, etc., and three subscribers sets—

w ith th is ap p aratu s all th e operations involved in th e operation of a 10,000 system m ay be • perform ed, a com plete central energy sw itchboard, several lines and subscribers sets and a selective signaling four p a rty line outfit, a collection of historical sets including Reis' tra n sm itte r and receiver, a stan d a rd portable bridge, a common portable bridge, a testing b attery , a power or foot lathe w ith wood tu rn in g tools, drills and han d tools for m etals, a set of tools for m etal w ork­

ing, a calibrating .lamp rack, a D ’Arsonval and common galvanom eters, Ballistic galvanom eter, stan d ard con­

denser, etc., for capactiy work, resistance boxes, sta n d a rd meghoms, etc., high resistance Thom pson galvanom eter, stan d a rd cells, voltm eter arranged for th e com parison of incandescent lam ps, a plug sw itch­

board controlling all circuits, a plating dynam o and a buffer for cleaning and polishing work to be plated, solution tan k , etc.,—in all, a com plete ourfit for elec­

tro ty p e work, a h o t wire am m eter, tw elve am m eters and voltm eters m ostly of th e W eston ty p e for direct cu rren t m easurem ents, a K ohlrausch bridge for m easur­

ing b a tte ry resistance, etc., a lot of arc lam ps series and con stant potential, open and enclosed arcs. W a tt­

m eters of various types, a collection of m otor startin g rheo stats, several sets of p arts of incandescent lamps show ing th e various stages in th eir m anufacture, a large collection of porcelain insulators used in electrical w ork including a lot of insulators for high tension tran sm issio n lines, a lot of arm ature core disks, tra n s ­ form er core stam pings, dynam o -frames, form ed coils,

b ru sh holders, pole pieces, samples of insulation, com­

m u ta to r segments, etc., used in dynam os of good design, donated b y le a d in g , m anufacturers of electrical m achinery, a case of m arked samples of wire insulators,

UN IVER SITY o r NOTRE DAME 4 3

lam ps and other construction m aterials, a library of practical books of reference and files of leading period­

icals and tra d e publications, a Cooper H ew itt m ercury vapor lam p, a high frequency Telsa coil and condenser, a working model of the induction m otor, an arm ature winding model m ounted to ro tate in bipolar and m u lti­

polar fields, a storage b a tte ry 25 cells w ith universal switch to connect for various voltages.

F or th e work of electricity and m agnetism in th e courses in physics there are th e following: An absolute electrom eter, a H oltz m achine and ap paratus for illus­

tra tin g static phenom ena, four induction coils, six bridges of different types, several am m eters and v o lt­

m eters, one 2,000 tb. electro m agnet, stan d ard resistance coils, a historical set of m otors showing evolution of th e m odern m achine from th e early form of th e recipro­

cating type, te n galvanom eters of various types, a complete X -ray outfit, a set of ap paratus for wireless telegraphy. F or fu rther ap paratu s consult pages 53, 54 and 55 of th e general catalogue.

For th e work in chem istry, drawing and shopwork, th e equipm ent and facilities will be found described on pages 58, 71 and 87.

SHORT PROGRAM FOR APPLIED