Obtain the equivalent circuit of a 200/400 V, 50 Hz, single-phase transformer from the following test data: O.test : 200 V,0-7 A, 70 W S.C. test: 15 V, 10 A, 85 W Calculate the secondary voltage when delivering 5 kW at 0-8 p.f. lagging, the primary voltage being - on L.V. side . on H.V. side 200 V. IR, = 57-14 ; X, = 330 A; R, = 0-21 Q ; X,, = 0-3I Q ; 3778 V)

Q: 1. If a 0.6 accuracy class current transformer has a phase angle of + 10 at 100% rated current, the…

A: Ans.(1). Value of 'β=10'

Q: 1. Consider a single-phase transformer with the following specifications. 20 kVA, 1200 V/120 V, 60…

A: NOTE- As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…

Q: 7. What is the no-load voltage when the full-load secondary voltage is 108 V and transformer…

A: Given: In a transformer, Full load secondary voltage V2fl=108 V. Transformer regulation VR=10%.

Q: A single phase, 500 kVA, 4400/440 V transformer has 100 turns in its secondary winding. Then find…

A: Solution: A single phase: KVA =500 KVA     4400/440 V,  turns N2=100, Find: primary winding turns…

Q: Please solve thiss questionnnnn

A: Solution:

Q: Single phase 10 kVA, 480 V / 120 V to feed a 120 V load from a 600 V source conventional transformer…

A:

Q: In the power system below, where would you expect to see a step-down transformer? Power Plant…

A: In power system transformers changes the voltage levels , so that transmission losses is reduced .…

Q: Which of the following is the correct equation for calculating the rated current for a single-phase…

A:

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.