. Electrical world. eachof the 30o-k\v rotary converters there is a 45-kilovolt-amp. reactivecoil of the air-blast t\pe, and with each 600-kw rotary there is a90-kilovolt-amp. reactive coil of the same type. Space has also beenprovided for three more 220-kw transformers and one 600-kw rotaryconverter with its reactive coil. Each group of three transformers 910 ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. 20. is connected to the 10,000 bus-bars through a type H General Electricoil switch, electrically operated by current from a battery of 55 type Estorage cells made by the Electric Storage Ba
. Electrical world. eachof the 30o-k\v rotary converters there is a 45-kilovolt-amp. reactivecoil of the air-blast t\pe, and with each 600-kw rotary there is a90-kilovolt-amp. reactive coil of the same type. Space has also beenprovided for three more 220-kw transformers and one 600-kw rotaryconverter with its reactive coil. Each group of three transformers 910 ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. 20. is connected to the 10,000 bus-bars through a type H General Electricoil switch, electrically operated by current from a battery of 55 type Estorage cells made by the Electric Storage Battery Company. Thepanels that carry the controlling switches for all the apparatus at thesub-station are of black enameled slate, and the maximum pressureto which they are exposed is 15 volts. Of these panels three carryinstruments for three incoming lines of 10,000 volts and 4,000-kwcapacity each. On each of these three panels there is one horizontaledgewise ammeter, one voltmeter of the same type, one double-pole. FIG. 9.—S\VITCHB0.\RD, .ALB.^XY. overload relay that indicates by lamps whether the oil switches areopen or closed, one controlling switch for the type H oil switch, anda current and potential transformer and static dischargers. The twopanels for outgoing lines are of 10,000 volts and i,Soo-kw capacityeach, and equipped like the incoming panels with the addition ofpolyphase induction recording wattmeters. For each rotary con-verter the panel includes a recording wattmeter, power factor indi-cator and overload relay, besides volt and amperemeters, controlling
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
