A 230/400 V single-phase transformer absorbs 35 W when its primary winding is connected to a 230 V, 50 Hz supply, the secondary being on open circuit. When the primary is short-circuited and a 10 V, 50 Hz supply is connected to the secondary winding, the power absorbed is 48 W when the current has the full-load value of 15 A. Estimate the per unit efficiency of the transformer at half load, 0.8 power-factor lagging.

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Q: If the open circuit voltage is 225V and the full load voltage is 200V, then the percentage…

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

A: As per our company guidelines we are supposed to answer only first one. Kindly repost other…

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A: Given transformer with rating 6300 KVA and 15/0.4 KV The no load current I0=2.91No load active power…

Q: What are the decimal values of the following 8-bit binary fractions? (a) 0.01100001(b) 0.10001000.

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Q: 2. Compute carry and overflow flags in the following table. Carry Overflow Operation 0100 0110 0101…

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

A: We will solve this question by using the no-loaad conditions of the transformer.

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Q: The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance…

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Q: Core losses of a single phase 400/240 V, 20 kVA, 50 Hz transformer is 700 W. Maximum efficiency of…

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A: We need to find maximum load .

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A: Single Phase Transformer:  An electrical device that accepts single-phase alternating current and…

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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…

Q: 1- A 50 Hz, 1-ph transformer has a turn ratio of 6. The resistances are 0.92 and 0.032, and the…

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Q: 391. A transformer has maximum efficiency at load copper loss (P.), is of full load. The ratio of…

A: Given, Transformer maximum efficiency at load factor, x=34.

Q: A single-phase transformer is rated at 50 kVA. The transformer has full load copper losses of 450 W…

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Q: a 5kva, 757v/ 420V, single-phase transformer has the percentage regulation drops 4%. determine the…

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Q: Solve for the efficiency at three-eight load at 0.85 power factor of a 10-kVA single phase…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost the question as a…

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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.