Example The wye- delta transformer shown in Figure is rated at 300 kVA, 14 kV (Y)/2.4 kV (A). It is connected to a three- phase power source through a feeder of impedance 4+ j15 O/ph. Assume that a three-phase load of 240 kW at 0.8 PF lagging is connected on the 2400 V side. (1) Draw the circuit schematic and indicate all the parameter labels and values. (ii) Find the turns-ratio of the transformer bank. (ii) Determine line current la and la , and if VAB =2400<0 V (iv) Calculate the line voltage (RMS) of three-phase power source on the high-voltage side stf.ac.ae

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A: Detailed solution is peovided below.Explanation:

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A: capitalized cost is the cost of fixed assets whether they are built or purchased.

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A: (a) Power is given, Voltage is given, Current is given, For three phase circuit power is given by,

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Q: 2-tabulate your results in table as shown in table (1) (I) TOTAL VL VR

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.