Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 154
means ofusing electrical pressure at a low potential, if neces-sary, inside of buildings, increasing that pressure toa great extent out of doors and reducing it again to asafe potential when we enter the premises where poweris to be used. 151 152 Operating and Testing Since we can raise the… … Figure 97 An illustration of such an installation is diagram-matically shown in Figure 97. The transformer Tnearest the dynamo is known as a step up and theother as a step down transformer. A step up wvwW
Electrical engineering · Electric testing
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