Dynamo Design ; Motor Design ; Alternating Currents
Dynamo Design ; Motor Design ; Alternating Currents
International Correspondence Schools
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to overcome resistance (1,000 volts) and that to overcome reactance (884 volts). 391 !• In an alternating-current circuit as considered in the above example, it is thus seen that it is quite possible for the reading of the voltmeter V to be considerably less than the sum of V^ and V^. The relation between the quantities in this problem is shown by the E. M. F. triangle, Fig. 1479, the sides of the CB'IOOO Volts a ^g^ Pig. 1479. triangle being laid off to scale to represent the different E. M. F....'s. CIRCUITS CONTAINING RESISTANCE, SELF- * INDUCTION, AND CAPACITY. 3912. It quite frequently happens that a circuit may contain ail three of the above. Electroly tii cells in some ^ases act like a condenser, and synchronous motors under certain conditions often cause leading currents, thereby affecting the flow of current in the same way as a capacity. The effect of all these three quantities, resistance, self- induction, and capacity, being present in a circuit is easily understood if it is remembered that the self-induction and capacity always tend to neutralize each other The effect Digitized by Google 2612 THEORY OF ALTERNATING of the introduction of a certain amount of capacity into a circuit already containing self-induction is to cut down the IK) Betittanee B e Indtteianee L CapacUy PIO.
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