The effective primary and secondary resistances of a 500 kVA, 12000/2400 volt 60 cycle transformer are 1.52 and 0.049 ohms, and the corresponding leakage reactances are 6.4 and 0.26 ohms. The no-load core loss is 1700 Watts. Determine the efficiency at rated kVA load and unity pf. a. 98.72% b. 94. 23% c. 97.43% d. 96.22%

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'

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Q: E1 3. For ideal transformer on no load E2 ... ...

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Q: 1. The RMS value of induced emf in the primary N1 winding is E1 =; E2 = 2. In ideal transformer on…

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Q: 1. A transformer transforms. (a) frequency (b) voltage (c) current (d) voltage and current. 2. Which…

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Q: A 3000V/4400V, single-phase transformer takes a no-load current of 0.5A and the iron loss is 200W.…

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Q: a) Define what the term "permeability" means. Explain why this is an important parameter in…

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Q: 3. A transformer has resistance and reactance in per unit as 0.01 and 0.04 pu respectively. What…

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Q: equivalent winding (a) resistance,(b) reactance and (c) impedance referred to the high voltage side.

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Q: A 3-phase transformer, ratio 33/6.6-kV, A/Y, 1-MVA has a primary resistance of 8.5 ohms per phase…

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Q: Difference between sc and oc test in transformer...

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Q: current supplies hysteresis loss, in a practical transformer? a. None of these b. IM c. IC d. I0

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Q: A 150 kVA, 2500/250 V, 50 Hz, single phase transformer has a no-load current of 0.75 A and a core…

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Q: A transformer has 600 primary turns and 300secondary turns. The primary and secondary resistances…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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.