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Unformatted text preview: Comment the short circuit impedance is important for identifying the transformer parameters. Problem 53 Short Circuit Impedance At 60 Hz , w hat is the magnitude and phase of the impedance that would be measured at the input to the secondary winding if the primary winding was short-circuited ? Problem 54 Loaded Transformer A 15 resistance is placed on the secondary of the transformer. The primary voltage is 100 V rms at an angle of zero and is at 60 Hz. In the steady state, at t=5 s, what is the instantaneous voltage across and current into the 15 Ohm resistor ? Problem 55 Transformer Frequency Response Plot the ratio of the magnitude of the referred secondary voltage to the primary voltage as the frequency is varied from 0.1 Hz to 10 kHz. Use a semi-log scale and assume that the secondary is loaded with a 15 resistor as in problem 54....
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This note was uploaded on 09/22/2011 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue University-West Lafayette.
- Spring '08