International Library of Technology · Scranton, International Textbook Co. · leaf 330
minals,and c^ d, ^,/are con-nected to the second-ary mains. The casein which transform-ers are placed is oftenfilled with an insula-ting oil, which not•only tends to keepthe insulation better, ^ a but also helps to get Fig. 1552. rid of the heat by conducting it away from the transformerto the iron… … CONNECTING TRANSFORMERS. 4022. The ordinary method of connecting transformersto constant-potential mains is shown in Fig. 1553. In thiscase the primaries P, P are simply connected in parallelacross the 1,000-volt mains, and the secondary of each de-livers 100 volts, provided the ratio of the…
Electrical engineering
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