Power Transformers: Principles and Applications
Complete with equations, illustrations, and tables, this book covers the basic theory of electric power transformers, its application to transformer designs, and their application in utility and industrial power systems. The author presents the principles of the two-winding transformer and its connection to polyphase systems, the origins of transformer losses, autotransformers, and three-winding transformers and compares different types of transformer coil and coil construction. He describes the effects of short circuits on transformers, the design and maintenance of ancillary equipment, and preventative and predictive maintenance practices for extending transformer life.
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2 TwoWinding Transformer Connections
3 Transformer Impedance and Losses
4 Autotransformers and ThreeWinding Transformers
5 Short Circuits Inrush Currents and Other Phenomena
6 Ancillary Equipment
7 Reading and Applying Nameplate Information
8 Maintenance Testing Troubleshooting and Reliability
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additional applied assumed autotransformer bank base bushings calculated cause Chapter circuit coil common conductor connected contacts cooling core core form diagram direction distribution effective electrical Engineers equal Example exciting failure fault flow flux forces former ground high-voltage impedance increase indicates induced insulation leads limit lines load current losses low-voltage magnetic magnitude measured method nameplate networks neutral normal operating output path peak phase phase sequence positive power transformers pressure primary and secondary primary winding provides ratio reduced reference regulation resistance rise secondary voltage secondary winding series winding short-circuit shown in Figure shows side single-phase standard supply Table tank tap changer temperature terminals tertiary three-phase trans transformer turns two-winding transformer types unit usually values vector voltage zero zero-sequence