Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Jan 2018 My Price 5.00

single-phase power transformer

A 150-MVA 15/200-kV single-phase power transformer has a per-unit resistance of 1.2 percent and a perunit reactance of 5 percent (data taken from the transformer’s nameplate). The magnetizing impedance is j80 per unit. (a) Find the equivalent circuit referred to the low-voltage side of this transformer.

 (b) Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging.

(c) Calculate the copper and core losses in transformer at the conditions in (b).

(d) Assume that the primary voltage of this transformer is a constant 15 kV, and plot the secondary voltage as a function of load current for currents from no-load to full-load. Repeat this process for power factors of 0.8 lagging, 1.0, and 0.8 leading.

Answers

Maurice Tutor
(5)
Status NEW Posted 05 Jan 2018 08:01 PM My Price 5.00

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