and a 500-KVA, 1-phase transt ers are connected to the s ame bus-bars on the primary side. The secondary e.m.fs at no-load are 500 and 510 V respectively. The impedance voltage of the first transformer is 3.4% and of the second 5%. What cross-current will pass between them when the secondaries are connected together in parallel? Assuming that the ratio of resistance to reactance is the same in each, what currents will flow in the windings of the two transformers when supplying a total load of 1200 kVA. lal 290 A (b) 1577 and 900 A1

Q: 4.27 A 10-kVA, 4160/240-V, single-phase transformer has a per-unit resistance of 0.01 and a per-unit…

A:

Q: 4. A 3-phase transformer, ratio 33/6.6-kV, A/Y, 2-MVA has a primary resistance of 89 per phase and a…

A:

Q: 2. The impedance of a 10 MVA, 22/220 kV transformer is 0.2 per unit. What is this impedance in per…

A: In a transformer, Base KVA, Sbold=10 MVA. Base voltage on LV side, Vb(old)=22 kV. Old impedance,…

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

A:

Q: 3.Draw the connections for three (3) phase transformers configurations listed below using single…

A: When interconnecting the coils, either in star or in delta, or in zig zag, whenever the mode of…

Q: What is the definition of zero sequence impedance in transformer? What is the benefit of zero…

A: Transformer: A device which transfer a electrical energy from one circuit to another circuit…

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.