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Commonwealth Electric Company, Fisk Street Station
| Firmenname | Commonwealth Electric Company, Fisk Street Station |
| Ortssitz | Chicago (Ill.) |
| Straße | Fisk Street |
| Art des Unternehmens | Elektrizitätswerk |
| Anmerkungen | Eines von drei Werken der "Commonwealth Electric Company". Gelegen an der Verbindung Fisk Street und dem südlichen Arm des Chicago River, etwa drei Meilen von Geschäftszentrum der Stadt entfernt. Das Werk war vmtl. das erste für Dampfturbinenbetrieb geplante (1903). Versorgung durch sechs Unterwerke; Übertragung durch Drehstrom, 9 kV, 25 Hz, Verteilung durch Vierleiter-Drehstrom 2300/4000 Volt, 60 Hz. Auch Stromabgabe an die "Chicago Edison Company" und die "Chicago & Oak Park Elevated Railway". Fläche ca. 15 acres mit ca. 600 feet Uferlinie, mit ausreichender Kühlwasserversorgung, Kohlenzufuhr per Schiff und von der "Chicago Burlington & Quincy Railroad". Das Kesselhaus sit 190 x 165 ft. und das Turbinenhaus 225 x 65 ft. groß, das Schalthaus 140 x 50 feet; alles für die 3,5fache Erweiterung vorgesehen. 1904 mit drei Kraftwerkseinheiten (jewiels 8x 512-PS-Kessel, Kamin (D= 20 ft, H= 215 ft.) und eine 5.000-kW-Turbine). |
| Quellenangaben | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 67] [Nat. register of hist. places (1978): Seattle El. Co.] |
| Produkt |
ab |
Bem. |
bis |
Bem. |
Kommentar |
| Elektrizität |
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| Zeit |
Objekt |
Anz. |
Betriebsteil |
Hersteller |
Kennwert |
Wert |
[...] |
Beschreibung |
Verwendung |
| 1904 |
Dampfkessel |
24 |
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Babcock & Wilcox Co. |
Einzelleistung |
512 |
PS |
Mit automatischer Rostbeschickung und Meade conveyors. Zu acht Kesseln gehört ein Kamin (H= 215 ft, D= 20 ft.) |
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| 1904 |
Dampfturbinen |
3 |
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unbekannt |
Einzelleistung |
5000 |
kW |
Mit stehender Welle und obenliegendem Generator. Daten: n= 500 U/min, p= 180 psi = 12,6 atü, Überhitzung: 150 °F = 66 °C. 9.000 V Sternspannung. |
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Zeit = 1: Zeitpunkt unbekannt
| Zeit |
Bezug |
Abfolge |
andere Firma |
Kommentar |
| 1 |
Nebenwerk |
zuvor |
Commonwealth Electric Company |
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| ZEIT | 1904 |
| THEMA | Beschreibung |
| TEXT | This station is located at the juncture of Fisk street and the South branch of the Chicago river, about three miles from the center of the downtown business district of Chicago. It stands nearly in the center of a plat of land of an area of fourteen acres, with a mean width of about six hundred feet, bounded on the south by the river. On either side of this plat of land a slip extending north from the river about thirteen hundred feet provides an inexhaustible supply of circulating water for the huge condensers. The river furnishes an excellent coal conveying medium, and at the north end of the property a spur of the Chicago, Burlington & Quincy Railroad facilitates bringing coal directly from the mines. The Fisk Street Station buildings, as at present constructed, consist of the boiler house, 190 x 165 feet, the turbine house, 225 x 65 feet, both of steel, and the separate switch house, 140 x 50 feet. These buildings are designed for future extension to three and one-half times the present capacity. Of the French style of architecture, with red pressed brick walls and cut stone trimmings, they form a delightful contrast to the ordinary river front property. The unit idea pervading this whole plant makes itself evident at first sight. Every unit from the coal conveyor to the last group of outgoing line switches is complete in itself, and the value of this idea in the localizing and confining of trouble will be at once apparent to the operator of large central stations. There are now installed three complete units, consisting of coal conveyors, boilers, Curtis turbo-generators, steam and electrical auxiliaries and switching apparatus. The ultimate installation contemplates
fourteen units. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 67] |
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| ZEIT | 1904 |
| THEMA | Kesselanlage |
| TEXT | Each boiler unit consists of eight Babcock & Wilcox 512-horse-power boilers, equipped with automatic stokers and Meade conveyors. Coal is dumped directly from cars into hoppers in the basement of the train shed and from there conveyed to bunkers of 1,000 ton capacity above each unit of eight boilers. A steel stack 20 feet in diameter and 215 feet above the earth furnishes draught for each 2-boiler unit. In the yard there is also track capacity for 50 cars of coal of 35 tons each, and further dock space for 20,000 tons. A four and one-half foot injection canal conveys circulating water from the east slip to each set of condensers, and an 8-foot discharge tunnel conveys the condenser discharge to the west slip. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 69] |
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| ZEIT | 1904 |
| THEMA | Turbogeneratoren |
| TEXT | The 5,000-kilowatt turbo generators operate at 500 revolutions per minute at 180 pounds boiler pressure with 150 degrees super-heat, the potential being 9,000 volts delta with the neutral brought out and grounded. Regulation of the turbines is effected automatically by the operation of the governor, which opens or closes individually 36 small valves, delivering steam to the nozzles. Essential to the successful operation of these turbines is an unfailing supply of oil for the step bearing of the shaft which carries the weight of the revolving field and steam bucket wheels, a total of 70 tons. Oil at about 1,000 pounds per square inch pressure must be supplied constantly to keep the shaft off its bearing, and to that end individual motor-driven oil pumps force oil at this pressure into the bearing continuously while the turbine is in service. An "accumulator" or oil pressure reservoir operates in parallel with the pumps. In the turbine room the steam auxiliaries are all located at the base of the Alberger surface condenser. They consist of a 140-horse-power horizontal Corliss engine, which drives the wet air and dry air pumps and the centrifugal pump, which is capable of supplying 140,000 cubic feet of water per hour to the condensers. Two separate steam-driven feed pumps supply the boilers with feed water, which is passed through a heater after leaving the hot well. All of these auxiliaries are within easy reach of the attendant, whose duties do not therefore require his presence in the boiler room. Operating control in this station is provided in the main turbine room on a specially constructed operating gallery of a capacity sufficient to control seven units. In addition, emergency operating tables and instrument panels are provided in the switch house. In the exciter system we have further illustration of the unit system of operation, as each turbo generator is provided with an induction motor exciter set (220-volt, 3-phase motor and 50-kilowatt, 125-volt generator). These sets are fed from the respective generators and are interconnected by common exciter busses. A battery operates in parallel with the motor-driven exciter units, and a 75-kilowatt steam-driven exciter is also available whenever occasion demands. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 72] |
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| ZEIT | 1904 |
| THEMA | Schaltanlagen |
| TEXT | A special electrical feature worthy of a more detailed description is the main operating switchboard On the operating gallery. This board is a combination of the instrument panel and the operating table. Complete equipments of indicating instruments for the generators and the outgoing lines occupy the instrument panel, while on the operating table portion are the controlling switches for oil switches, rheostats, etc. All control switch contacts are made on the under side of the table, the handles only projecting through the marble. A special synchronizing plug completes the closing circuit of the oil switch control switch, and causes on the synchronizer an indication of a synchronous or non-synchronous relation of the two points about to be connected by the closing of the oil switch. Special pilot lights with prismatic lenses furnish signals to the operator of the proper working of the remote control apparatus. On the rear of the board all the control and instrument multi-conductor cables end at a terminal board, carefully lettered, and the wiring from that point to the control apparatus and instruments is a feature of the construction. All cables leading from this board to the various points of control are lead-covered and are installed in individual iron pipes, which render communication of trouble to adjacent circuits impossible. On the turbine room floor each exciter has its switchboard with controlling devices, while at the turbine the operator is provided with a wattmeter indicating the total output of the turbine, a frequency indicator, and an electrical signal device which puts him in communication with the operator on the main operating switchboard. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 74] |
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| ZEIT | 1904 |
| THEMA | Hochspannungsanlage |
| TEXT | The high tension system is taken care of by carefully insulated open bus construction, with the buses of each unit in a separate chamber; all being separated from the oil switches on the floor above and the whole being installed in the separate and especially constructed switch house, forty feet from the turbine house. The high-tension connections are best understood by reference to the diagram of generator, bus and line connections shown herewith. The output of the generator is conducted to the bus, in the switch house, in single-conductor, lead-covered, 600,000 c.m. cables, drawn in vitrified clay tile ducts, oil circuit breakers of the most modern type being used throughout for high tension switching. No cable is used in the bus chamber; copper bars and rods insulated to withstand 20,000 volts have been used, these conductors being mounted on porcelain insulators. The outgoing lines, all three-conductor, lead-covered cables, convey the energy through an underground duct S3'stem to the various substations. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 75] |
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| ZEIT | 1904 |
| THEMA | Unterwerk |
| TEXT | One corner of the basement under the boiler room of Fisk Street Station is utilized as a substation. This is only a temporary arrangement, as it is intended later to construct a suitable substation building on the north end of the grounds surrounding the Fisk Street Station. At present this substation contains one 500-kilowatt rotary converter and one 250-kilowatt motor generator set composed of a D. C. 250-volt motor and a three-phase, 4,000-volt, 60-cycle generator mounted on a common shaft, this machinery being entirely reversible in its operation. The principal output of this substation is a direct current supply to District No. 3 of the Edison Company, although four 60-cycle circuits are carried by this plant, for a period during the evening. |
| QUELLE | [Am. Inst Elect. Eng.: Chicago electrical handbook (1904) 75] |
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