Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Engineering Posted 14 May 2018 My Price 8.00

short circuit test

Consider the circuit of Problem 4.18.

A. A short circuit test is conducted on the transformer with 22 volts applied to the secondary side with the primary short circuited. Determine the readings of the ammeter and wattmeter connected to the secondary side for this test.

B. An open circuit test is conducted on the transformer with 2200 volts applied to the primary side with the secondary side left open. Determine the readings of the ammeter and wattmeter connected to the primary for this open circuit test.

C. The transformer is supplying 15 kVA at 220-V and a lagging power factor of 0.85. Determine the primary voltage.

Problem 4.18

A 25 kVA, 2200/220 V, 60 Hz, single-phase transformer has the following equivalent-circuit parameters referred to the high-voltage side.

The transformer is supplying 17.5 kVA at 220 V and a lagging power factor of 0.8. Use the equivalent Cantilever model circuit of the transformer shown in Figure 4.16. Determine:

A. The magnitude of the required primary voltage.

B. The power factor of the primary side, the input kVA, and the efficiency of the transformer.

 

Answers

Maurice Tutor
(5)
Status NEW Posted 14 May 2018 01:05 PM My Price 8.00

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