200 KVA, single phase two-winding transformer rated 4160/230 V, 60 Hz has primary and second impedances of 0.09 + j 0.9 ohms and 0.02 + j 0.2 ohms respectively. The full-load copper loss is measured to be 5000 W during operations. The core loss is 650 W when a voltage of 2200 V, 50 Hz is applied to the transformer and 210 W at 1200 V, 25 Hz. Calculate: a. The core loss at normal operation and the maximum and full-load efficiency both at 0.9 power factor

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: A 25 KVA single phase transformer has turns ratio of 100/29. If low voltage side is connected to 250…

A: Solution: Given data; KVA =25 KVA, single phase transformer ; turns ratio=N1N2…

Q: Ql-phase step down transformer 1250 KVA, 110002200 V, 50 Hz. The resistance iphase and leakage…

A:

Q: A 2400/240 V, 200 kVA, single phase transformer has a core loss of 1.8 kW at rated voltage. Its…

A: A 2400/240 V, 200 kVA Single phase transformer- Core loss Pe=1.8 kW, Equivalent resistance Reqv=1.1%…

Q: A short transmission line connects a step-up transformer on the source side with a series impedance…

A: It is given that: VL=17 kVVph=173 kVN1N2=114N3N4=181ZL=0.463+j0.0772 ΩX1=j0.5 ΩR1=50 Ω

Q: find the voltage on primary side in pu.

A: Given that, Primary Voltage (V1)=2000 V, Secondary Voltage (V2)=200 V, Primary Impedance (Z1)=0.12+…

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

A:

Q: How do i calculate secondary current in transformer analysis

A: Given that  calculate secondary current in transformer analysis

Q: Am 11 KV /33 KV 220 MVA, 60 Hz transformer is wooded at sy. with resistive to ad Ratio 21 KW at…

A: In this question we need to find a copper loss at 50% and 75% loading

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…

Q: A short transmission line connects a step-up transformer on the source side with a series impedance…

A: Short Transmission Line: A short transmission line is one with an effective length of less than 80…

Q: A non-ideal 1-phase transformer has turns ratio 5:1 with 120Vac primary.  The primary impedance is 1…

A:

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.