City Guilds Model Questions Vol1 2024 Engineering Question 30
Practice objective / multiple choice question 30 from the 2024 City Guilds Model Questions Vol1 Engineering examination.
A balanced three‑phase Y‑connected load draws a line current of 120 A at a line‑to‑line voltage of 400 V with a power factor of 0.8 lagging. The supply is connected to a step‑down transformer having a turns ratio of 10:1 (primary : secondary). Determine (i) the apparent power supplied by the transformer in kVA, (ii) the real power consumed by the load in kW, (iii) the secondary line‑to‑line voltage, and (iv) the capacitance per phase (in µF) of a capacitor bank that must be connected on the secondary side to raise the overall power factor to unity (assume 50 Hz).
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About This Question
This is City Guilds Model Questions Vol1 2024 Engineering Question 30. It is one of the objective questions from the 2024 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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