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Q. Explain, with the aid of diagrams, the following in relation to the construction of power transformers. Include the advantages and disadvantages in your description.
a) Core type
b) Shell type
c) Sandwich wound
d) Concentric wound
Q. The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13%with half rated current at unity power fa
Define the application of CAM/CAD to engineering design along with its benefits. a) A triangle is prepared by three position vectors A[2 4 1], B[4 6 1], C[2 6 1], get the reflec
An automotive manufacturing company is planning to bring out a new model of a compact car for the Indian market. One of the critical tasks is choosing an engine with a proper engin
how should I calculate inverse z transform of 1/0.729z^-1+0.729z+1.5314
Q. Explain about Elementary Direct-Current Machines? A preliminary discussion of dc machines, including Equations. The location of the brushes on the commutator arrangement con
For a 45-kVA, three-phase, wye-connected, 220- V synchronous machine at rated armature current, the short-circuit load loss (total for three phases) is 1.80 kWat a temperature of 2
Q. Counting to moduli other than 2 n is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four
what is the difference between the continuous time system and discrete time system and their advnatages?
Q. Explain Working of Liquid-crystal display? This display needs only microwatts of power (over a thousand times less than a LED) and is used in such devices as electronic wris
1. A 230/1000V 50 Hz, single phase transformer has the following test data: Open circuit test (L.V.) Primary voltage = 230V Primary current = 1.30 A Input power
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