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Chapter 3. Operational features of transformers - Pg. 49

3 Operational features of transformers It would be nice if the operation of a transformer was just a matter of applying voltage to the primary and meeting the load's requirements from the secondary. One tends to think of the transformer as a passive device with little capability of any gross malperformance. However, experience teaches that the passivity can only too easily translate into active malperformance. Somewhat surprisingly, this pertains to a *good' transformer, not necessarily one with shorted or open windings (although these defects often enough develop from the malper- formance). In the first place, our perfectly 'good' transformer is, in practice, always a considerable departure from the role model ~ the ideal transformer. The practical transformer will be endowed with such blemishes as winding