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Derive the output equation of a three phase transformer and single phase transformer.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Calculate approximate overall dimensions for a 200KVA, 6600/440 V, 50HZ, 3 phase core type transformer, The following data may be assumed;

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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State advantages and disadvantages of short pitch winding, distributed winding in alternator and derive an expression for distribution factor

electrical machines updated 2.1 years ago by sagarkolekar ★ 11k

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A 4kva 200/400v 50hz single phase transformer gave the following test results

electrical machines updated 19 months ago by yashbeer ★ 11k

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Calculate the active and reactive component of no load current of 400V, 50Hz, single phase transformer

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Draw phasor diagram for single phase transformer for lagging & leading power factor

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Derive an expression for power developed in salient pole machine acting as a Generator. What are the components of power?

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Estimate the pu regulation at full load and 0.8 pf lagging for a 300 KVA, 50Hz, 6600/400 V, 3 phase, delta/star core type transformer. The data given is

electrical machines updated 2.4 years ago by sagarkolekar ★ 11k

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Explain with neat diagram power circle & o curve of synchronous motor

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Explain connection and phasor diagram of Dy11 and Yy6 transformer.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Write the expression for ratio and phase angle error of potential Transformer.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Write a short note on Oscillating Neutral in three phase transformer.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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calculate the flux in the core and ratio error at full load. Neglect leakage reactance and assume the iron loss in core to be 105w at full load. the magnetizing mmf is 100

electrical machines updated 2.1 years ago by sagarkolekar ★ 11k

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Find the pitch factor and distribution factor for the winding and calculate the induced EMF between the line if the flux per pole is 0.06 webers

electrical machines updated 2.2 years ago by teamques10 ★ 65k

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Determine the induced EMFand angular retardation of the rotor when fully loaded at U.P.F.0.8 P.F. lagging ,0.8 P.F.leading

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Calculate the overall dimensions of a 250KVA, 6600/440V, 50Hz three phase core type transformer with data

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Describe the difference in construction of rotors of alternators used in hydroelectric plants and steam plants.

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Write the expression for ratio and phase angle error of current Transformer.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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Two 3 phase alternators operate in parallel rating of 1machine is 50MW & other is 100MW.Both alternators are fitted with governor having a drop of 4%. How will these two machines share load of 100MW?

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Draw alternator phasor diagram for lagging power factor. How one can distinguish whether phasor diagram is for an alternator or a Synchronous motor

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Two three phase transformers rated at 500KVA and 450KVA respectively are connected in parallel to supply a load of 1000KVA at 0.8PF lagging.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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What are the factors influencing in small scale fading?

electrical machines updated 2.4 years ago by Krishna_Agrawal • 2.7k

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Draw phasor diagram for salient pole alternator for leading power factor.

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Why short circuit characteristics for an alternator is a straight line?

electrical machines updated 2.2 years ago by sagarkolekar ★ 11k

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Calculate the per unit leakage reactance of a 315 KVA, 11000/440 V, 50HZ 3 phase core types transformer with data and delta star connection.

electrical machines updated 2.1 years ago by RakeshBhuse • 3.2k

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