tailieunhanh - Electrical Power

If each voltage is connected to a circuit with the same power factor and the three currents return along the same conductor, then the vector sum of the three return currents is zero. Thus instead of three full sized return cables, only one of smaller size is needed. If none of the load is single phase, then the neutral is not needed at all. High voltage supplies are nearly always three phase without a neutral conductor. There is a great economy in distribution costs if the electricity can be supplied in three phases. . | Download free books at W. J. R. H. Pooler Electrical Power Download free ebooks at 2 Electrical Power 2011 W. J. R. H. Pooler Ventus Publishing ApS ISBN 978-87-7681-731-2 The book is offered as a free service for you to use at your own risk. The vauthor cannot be held responsible for any errors. If used for any purpose that could result in financial loss the user should consult other sources. The book is assembled from notes made at school at technical college at university and while working as an engineer. The information and the examples are from these sources. Download free ebooks at

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