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.cJl -noo er ,îo'-(bd iii-Qla ericf xietpvileh J'i doinw yyians f>cij 'io c^nolj'Tif/pe ori;f ""o e'^ll '^nol Lay uoliîeoo ^îisd v^f.oiojSfeli&p. 3:om en* To &V(Ct/Jb etfi/fOEcfs &tii si/rfT .i)9>:.TSnoeii>-ievo leveti ef v,*if>3J3d eiW Jbr-s av'St- oe^ ffioi* Laol ^xitJiiiJI esziori IXasna iS iine eojrf-nlX if^f^'is eri* yiif? êtrt 0(i Y,lLe:i6:!oi:iir i;luoTf ,'t;vewori ^rr(»JOr-J 13 ttouS .,;, A V li^ctxj ,','.S: 01 Yi9d^£'3 i6r;ji;7.I s Pio^sTSrfT ,xr;lbtqjit cjuo issw .cXi/ow iirra iajt'-roxisvo i^J Jfi.:J 9SJ:e riewa '^.0 erf iluods .+i Jbcrs .vsJIdd'sni ed oXuDa"^ acriJ nart^r jC3 '\o Cj-oijj;i53irf I0 eciô ni ecifvrtos ev^sfcei lot noqo bet Let ed lueo eri? yTi'iiiO 0? rt-'ffoa© £«i..r «d o'ecre )i ,p.tiov: iBC:io nl .lOcTsienes noiiioq a 7:i"'3;j noidi;M);B tri ins ,i,:. \ V IxJnjj .''.^: 2 nio'it tJ-.-îll dr-eiJa iilL'Ov. fciuort jcia Y^-tcd* ,eurt': ,:î«f( iX e-:0iJ5 un-a sotiexiosi ©ri* ?o ed rXfJOvr ov-o^ erii eto^ôd to^tK-jacaji eri? 'ô nT-ofcifBiyid ert^ la^x- e«qjsle XBTTon c»Jl iil7ie:. oi aoiiiLls stl ,\rrt9iJfid eri;f Ln& ,8ee^r^^J£i) Xfl*o;t nl -OTq 10 QOiiioe. a as evisc: oeiri t^vo^- ^cvt'Oi en& unJ;fffelI '•0 i/oiôry/?- kX rroi JoeJ-OTo eitlJ lii*^ -Off JtL'T, , c-v Di..vB€"i(,i eêXarnoo fp.nitt^^s aotSo&i e£f.t *ii -.noicrxiinoo Xsf oncriTi v:o ij'Jrr.timB;ff.x:- ei yXXaienev fcsimso ed o.t ene •rLnt/'* eldsti^t I enoo 'tl .beaBriotirg -v^nlsd b1 iaeXa erfa ^furii e.-^!.; -noo lerfaô lebnu '^ f ;?f;d .iieeeriotug ed rrso yned i^rf 5uoienss a ,bajiti ia ib^joje 9S1j3X JfeWfl is €:! •\jTf*Srd' ©rl* .turiif l)ef)n9."nnoobi al tl ,enoNli> ti-iuoae en*,X ':i4ii. ai 8e;taXq scm ,î'X«;^cni \rd bI^tt t^d eyawXa bXnoria
to accomodate four additional plates, For instance, an E-7 Chloride AecTinialator Battery, consisting of seven size E plates, should be in- stalled in E-11 jars, which will accomodate eleven size E plates. At a future date the four additional plates may be added and the capacity of the plant increased by 80 ampere-hours at a minimum expense. The street lights in iTorwalk aggregate 1720 watts, and 17. would requir* a battery having a capacity of 24080 watt-hours to carry this load for 14 hours. Batteries of approximately the size which would be required in this installation are rated at 10, 15 and 20 aniper«« at 220 volts for 8 hours, equivalent to 16600, 26400 and 33200 watt - hours respectively. The comparative costs of these batteries , based upon prices which would be quoted under conditions of normal competition are f 1336 .00 $1722.00 and $2312.00. Undoubtedly the 10 ampere battery would give sat- isfactory service, inasmuch as it would be large enou^ to carry the street li^ts for nine hours, yet in case of breakdown of the generator it would but partially tide the plant through the night, por an additional ,|386 .00 in a total expenditure of |7000.00 a 15 ampere, 26400 watt battery can be purchased which would carry the street lights 14.5 hours. The 20 ampere plant is larger than is actually required. This latter size was actually called for in the advertisement for bids, but alternatives were offered on the 15 ampere plant, with the recommendation that this aize be purchased with jars large enough to allow for the increase of the battery opacity to 25 amperes by the addition of four more plates. The method of charging the battery here enters into con- sideration. Approximately 300 volts are required to completely charge a 220 volts battery. Standard generators are rated at 250 volts; 300 volt
Page 2 and 3: Illinois Institute of Technology UN
Page 7 and 8: THE INSTALLATION OF AN ELECTRIC LIC
Page 9 and 10: TABLE OP COITENTS, —oooOooo— Se
Page 11 and 12: oooOnoo ?ig. 1 Plat of the Village
Page 13 and 14: THE mSHALLATIOS OP AN ELECTRIC LIGH
Page 15 and 16: SECTION I, HISTORY. The Village of
Page 17 and 18: SECTIOir II, Size of the Generator,
Page 19 and 20: This estimate is very liberal. The
Page 21 and 22: station capacity. This figure may a
Page 23 and 24: the residence district. Gasoline st
Page 25 and 26: Ihs total estimated load le therefo
Page 27 and 28: sfeLOWs that •ttiis estimate chec
Page 29 and 30: Compensator ; This generator shall
Page 31 and 32: Alternating Current System ; SECTIO
Page 33 and 34: tunnels in the hills on each side o
Page 35 and 36: In the 18 typical plants Investigat
Page 37 and 38: TABLE NO. 3 COPPER CALCULATIONS Len
Page 39 and 40: 125/250 VOLT SYSTEM. peet Of Size o
Page 41 and 42: In addition to Its advaatages from
Page 43 and 44: SECTIOS IV* The Storage Battery. 15
Page 45: 16. longer psrlod of time each day
Page 49 and 50: apparatus is special and therefore
Page 51 and 52: SBCTION T. The Switchboard. In the
Page 53 and 54: 20. Is required. For intelligent op
Page 55 and 56: panel contains all the apparatus sr
Page 57 and 58: I!FEM #2 ; Egxtlpnent 1 - DJ. Type
Page 59 and 60: ITEM #4; 2 - D»PJ).T. 250 V. 60 am
Page 61 and 62: Poles ; SECTION VI. The Line Constm
Page 63 and 64: are 3 feet long, four-pin arms 4 fe
Page 65 and 66: The lamp can be lowered by means of
Page 67 and 68: 400 - 3/8" X 4" galT. carriage bolt
Page 69 and 70: eluding the cost of erection, SECTI
Page 72 and 73: .II? .JGITO;;;;:. -xo iaelq b:
Page 77: O JiOO Too -^
Page 85 and 86: ELECTRIC SERVICE SUPPLIES COMPANY I
Page 87: ELECTRIC SERVICE U P P L I E S COMP

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