Two tests were performed on a 40-kVA transformer to predetermine its efficiency. The results were: Open circuit : 250 V at 500 W Short circuit : 40 V at F.L. current, 750 W both tests from primary side. Calculate the efficiency at rated kVA and 1/2 rated kVA at (i) unity p.f. (ii) 0.8 p.f. [96.97% ; 96.68% ; 96.24% ; 95.87%]

Q: Design a lo power transformer to be used in a wind turbine for the following specifica tions: 1-…

A: To need to design a power transformer that is to be used in a wind turbine for the following…

Q: 1. A 2.4-kVA, 2400/240-V, 50-Hz, the step-down transformer has the following parameters: : RH =…

A: Rated kVA is  kVA.Induced EMF ratio is  V.The high voltage to low voltage winding turns ratio is…

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A:

Q: an ideal transformer circuit is shown in Figure Q4(a). Its primary and secondary turns are 400 and…

A:

Q: A transformer with a 10/1 turns ratio has a maximum flux density of 60,000 lines/in2, when the…

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A: Given: A 100/500 V, 1 KVA, 50 Hz transformer was put through open and short-circuit tests to find…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.