Recent content by Angusbrooks

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    Transformer Calculations - determining turns/current/maximum flux

    The Question A single phase transformer has the following rating: 120 kVA, 2000 V/100 V, 60 Hz with 1000 primary turns. Determine: (A) the secondary number of turns (B) the rated currents on the primary and secondary (C) The maximum flux (D) given a maximum flux density of 0.25 T, the...
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    What Is the Apparent Power in a Circuit with a Power Factor of 0.72?

    A circuit has a power factor 0.72 lagging and the power dissipated is 375w. Determine: (A) Apparent power Relevant equations: ohms law V = I x R apparent power (S) = supply voltage (Vs) x Current (I) Attempt: Current = Voltage Resistance 120v 10Ω = 12Amps ∴...