This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 Excerpt: ...in 5 parallels it would be good for 440 volts, since---- 440. However, a six-pole winding cannot be connected in 5 parallels and the horizontal column is followed farther. There is not another 20 under the three-phase vertical columns, but there is a 19, which is nearly right, under "three-phase 3 parallel delta." Since a six-pole winding can be arranged in 3 parallel delta, as in Fig. 110, this is the connection desired, and the normal operating voltage will be 19 per cent. of 2200 418, which is near enough to operate satisfactorily on a 440-volt circuit. From these scattered examples it can be seen that the table is of wide application and answers two types of questions. The first of these is what will be the new operating normal voltage if a winding is reconnected in a certain way, and the second is, what will be the form of the connection to get a new operating voltage which is desired. Indirectly, the table answers the question of whether it is at all.
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