A 50 MVA 230/115-kV, A-Y three-phase connected power transformer has a per unit resistance of 0.015 pu and a per-unit reactance of 0.006 pu. The excitation branch elements are Rc = 125 pu and XM = 20 pu. What is the equivalent branch resistance, Rc, in k2 referred to the low-voltage side?

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…

Q: Ql-phase step down transformer 1250 KVA, 1 1000/2200 V, 50 Hz .The resistance /phase and leakage…

A:

Q: The resistance and reactance of the primary winding of a 440/110 V single phase transformer are 4.4…

A:

Q: draw a three-phase transformer equivalent circuit and also explain how formulas were derived

A: This is a 3 phase transformer equ6 circuit.

Q: Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer…

A: Given data 20kVA, 50Hz, 2000/200V transformer R1 = 0.5, R2 = 0.005, X1 = 0.5, X2 = 0.005, Rc = 500…

Q: Two transformers A and B of different ratings but equal voltage ratios share a load of 900 kVA at…

A: Load  SL = 900 KVA   0.8 pf lagging transformer  A  rating is  600 KVA transformer  B  rating is…

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.