Science: v.1-v.219Moses King, 1958 |
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Стр. 1151
... polyphase system in- stalled at Niagara Falls in 1895 and 1896. Later rebuilt to operate at higher voltage and as three - phase instead of two - phase generators , they are still in operation and produce the same kind of current as ...
... polyphase system in- stalled at Niagara Falls in 1895 and 1896. Later rebuilt to operate at higher voltage and as three - phase instead of two - phase generators , they are still in operation and produce the same kind of current as ...
Стр. 1152
... circuits of the first Niagara Falls plant , as of 1897 , show- ing the versatility of the Tesla polyphase system . Originating as two - phase alternating current at 2200 volts , the electricity was easily stepped up or down in voltage ...
... circuits of the first Niagara Falls plant , as of 1897 , show- ing the versatility of the Tesla polyphase system . Originating as two - phase alternating current at 2200 volts , the electricity was easily stepped up or down in voltage ...
Стр. 1154
... polyphase system meant arc lights in streets and in- candescent lamps in homes and business establishments in thickly populated areas of big cities , now means electric light and power for all purposes in 98 percent of all buildings of ...
... polyphase system meant arc lights in streets and in- candescent lamps in homes and business establishments in thickly populated areas of big cities , now means electric light and power for all purposes in 98 percent of all buildings of ...
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