Westinghouse Work At The Fair

Friday, July 21, 1893
Archived Page: 

154 THE ELECTRICAL ENGINEER.. [Vcl.XVI. No.2'16. tion niore apparent than in mining. Direct current from the rotary transfornicrs is excellently adapted to haulage and hoisting, while the air compressors, lights, etc., may lwopi~|'atu1lliy 1-itlivr thc same cu_rrcnt or that from the reducing transformers. The street railway exhibit in the Electricity Building was fully described and illustrated in Tun ELECTRICAL ICNHINIEIEIL, of July 5. In addition to this, however, there are three supplementary VVestinghonse exhibits. Thus, in F Eli" H i Je _ `7'°“:. Q V. ' f ~{"` ' °° » ~= \-_.==. N. f’i%¢»f-»f~ 1 ff' ”? . "i ,_ 'Y' \i\ Q; '¥"`\ lr iii .g li- éf 3 Fm. 8.-Wnsrmcnovsa Riunwnf Gaunxwrou Wrrn Anus Enema. the Transportation Building there is a Lamokin 18-foot car with two 30 h. p. Westinghouse single reduction motors and a series multiple controller, etc.; on an exhibition track near the north end of the Terminal Station is a 20-foot Laclcde ear similarly equipped, and in Machinery Hall has just been completeda 750 h. p. railway generator, the ar- maturc of which is mounted directly upon the shaft of an Allis engine running at only 90 revolutions a minute. 'This machine is unique. It has never before been assembled, as the armature, after being wound, was sent to_ Milwaukee, where it was fixed to thc engine shaft. The illustration, Fig. 3, gives an excellent idea of the peculiar construction and the arrangement of engine and generator. A detailed account of the latter will be forthcoming as soon as it has been run and tested. Apparatus for arc and incandescent lighting are shown in the Electricity Building just east of the railway exhibit, and include' standard alternators of various sizes including the field casting of one of 450 kilowatts, showing the \Vi-stiiigliouse method of casting thc laminated poles into the cast iron frame. Here are standard converters and transformers, special converters with non-arcing metal lightning arresters, direct current motors and generators of the horizontal, multipolar and Manchester types, alternating current 31'C light dynamos, Shalleuberger meters complete and in operation, and also in parts to show the interior mechanism, Wurts non-areing metal lightning urresters in operation, other types of arresters for direct currents, and a great variety of well-known st les of switches, ammeters and vcltmcters for direct and alternat- ing currents. In the southwest corner of the space isa dark room for special exhibits of high potential and high frequency phenomena, where exhibitions are given daily. Some of .vlr. 'I‘esla‘s early apparatus is also shown as well us some of that with which he has obtained such remark- ahle results in the use of high frequency alternating currents. ' Nearlyeveryone is now familiar with the great Columbus mural decoration occupying the entire wall space above the south gallery of the Electricity Building and forming a. conspicuous part of the Westinghouse display, where the lettering and decorative work is all outlined with Sawyer- Mau stopper lamps supplied with current from the central station in Machinery Iall. The machinery in the Mines and Mining Building, or, so much of it as is in operation, is run by two 150 h. p. 500 volt direct current Westing- house motors, and a 20 ll. . motor of the same make oper- ates an elevator in thc Iiiaw Sodth Wales exhibit in the Transportation Building. The Yale & Towne crane in Machinery Hall, described in our last issue, is also equipped with Westinghouse n.\otors of the Manchester typo.

Aug.16,1893.1 THE ELECTRICAL ENGINEER. 153 T. .B_. _ WORLD’S FAIR DEPARTMENT. -F G ,. WESTINGHOUSE WORK AT THE FAIR. OUR readers will recall, in Tun ELuc1‘aIcAL ENGINEER of April 26, a. description of the W8Sbl!1g`ll0llB€ Machinery Hall service plant from which so large a part of the grounds ‘_j',.__,_V_ ;‘ 'V ‘f W »:.»<{' '~ %_§§P..J , . . . if ‘if - -Yi tf - `_ ~ 9 t A . , , § V .1 ~§ #QQ 79' ’* l l I t lm / ’ L / 3% / \ I /‘ \ ug; M . . - ‘ ~' ’ w ‘ ' "L ` ` ll\"1»-1 f. _ ~ 1. 1' I' 1 “‘ ~. l ef* 'ill _ T. af3`~“"9. so .,..i¥a'»e‘r~»§‘g:_§5`._ ff ' _l y _ , ` _ < -il Lv- rin* `~ "fee - = _» , . . ,,, . ,a 13.fj "" ‘~~3-w>>‘_ *i f ’ ‘ _,,_,, - f , 'fi `"l3 " 'l»§~=£iif§u‘ » , " Flo. 1.-500 H. P. Wssrmonousu Rornxuo Tnulsronusn. and buildings are lighted, and which is capable of supply- ing 180,000 16-c. p. lamps. At the time the article referred to was written, the plant was just being put in and was in a very backward condition. It will nut, then, be amiss, now that it is complete, and nearly all thc generators are in operation, to refer to it once more in connection with a brief review of the company’s work at the Fair. The power plant, occupying the space between columns E, 13 and E, 25 in the south navc of Machinery Hall, con- sists of six 750 kilowatt two-phase alternators, two of which are belted to a 8,000 h. p. Allis engine and the other four to 1,000 h. p. engines built by the Fraser & Chal- mers, McIntosh & Seymour, Buckeye, and Atlas companies, respectively ; six 750 kilowatt two-phase alteruators, each directly connected with a 1,000 h. p. \Vestinghouse Colum- bian steeple engine; two 240 kilowatt single-phase alter- nators, each belted to a 350 h. p. Westinghouse compound engine, and three 75 kilowatt exciters directly driven by 100 h. p. Westinghouse compound engines. The great white marble switchboard is designed for 12 two-phase and two single-phase alternators, four exciters and 40 circuits and controls nearly all the incandescent and a large number of are lights in the grounds and buildings including the Midway Plaisanoc. The switches are so arranged that any one of the 40 circuits can be instantly connected with any of the 14 alternators, and regulating devices are provided for accurately adjusting the candle power of the lamps. All of the incandescent lamps are of the Sawyer-Man stopper type and the arcs are run from Wcsting iouso constant lotential alternating current. In the Electricity Building the exhibits of the company cover about 15,000 square feet of door space and while standard Westinghouse alternating current lighting appa- ratus is fully represented, special attention has been lven to recent developments and improvements in the Held of applied electricity. In the space marked by the “ Golden Pavilion ” toward the northern end of the building is a complete power transmission plant usin the Tesla poly- phase system and touched upon in Tum E§1ECTIl,lGAI¢ laser- NEER of June 21, under the title of “ Progress in the Elec- tricity Building.” It will be remembered that within this one space are shown a generating station, a high tension transmission circuit about 30 feet long and a reccivingand distributing station. The first contains a 500 h. p. two- phase alternating current generator, a 5 h. p. direct cur- rent exciter, a marble switchboard and the necessary step- up transformers. In practice the generator and exciter would naturally be driven hy water power and the former is, in fact, directly belted to a Pelton water wheel, but as water power is not available, instead of the wheel driving the generator the generator drives the wheel, or rather both generator and wheel are driven by a 500 h. p. Tesla polyphaso motor with it rotating Iiold, and tho- cxciter by ao h. p. motor of the same type, both operated by current from the large two-phase alternators in Machinery Hall. _ The switchboard at the generating station is connected with tl\at at the receiving station by a four-wire overhead circuit. The l\igh tension current is here transformed to 500 volts and distributed to various local circuits. A 500 h. p. two-phase Tesla. motor and rotary transformer re- ceives alternating current from the step~down transform- ers and, exercising its function of motor, drives a Worth- ington pump and a. 40-light \Vestingl\ouse alternating cur- rent arc light dynamo. As a transformer it delivers direct current at 500 volts to two 30 li. p, rail\vay motors mounted on a standard Dorucr do Dutton truck, a 60 h. p. motor driving an Ingersoll & Sargent air compressor and several constant potential are lamps. A 60 h. `p. machine of the same type is sh0\vn supplied with two-phase alternating current from tlne reducing transformers. As a transformer it delivers current at 50 volts for electrolytic work, etc. Beside this is a 60 h. p. two-phase synchronous Tesla motor directly coupled to a 45 kilowatt \VL‘Sbll1gll()llBC slow speed constant potential alternator for incandescent lighting. .q t ' § , -_=;~:_,¢..». _;;`A = ian is 5 . as 4 .fl ..-f "‘ " , .M rf Q 3, am »,. of ,V , pg; _ ;_ __, 4,5 ; ~ Mg = 5 Eli , » 1; sy - ~ ¢ ; f? `F1“l?"! ' ° _ -~ ,-12+ fr ;.1'1>§.§;¢ ~ ; H .f ~ »~. .= an 1 ' ~~.;fs__ »~ fp ra , , q Q _ I.. Y . _ ,,4_ f " \`\ \ /-f ~ -\\\ 0/ It p _ ,Z ~ 5 y ~ ’< / _ ' i' V 5 A ~ _ ; V g `. /£_~ . _ ,gl-;»”:: in , 0 5422" 4-=='~=~~‘~‘?"“° 5 Flo. 2.-500 H. P. Two-PHASE TESLA Moron. Whilo this system permits thc use of exceedingly high tension for transmission over great distances, it delivers both alternating and direct current at any potential at the receiving end of a single circuit from one dynamo at tho generating station. In no case is the value of its applica-