Answer / brajkishor

Full form of ots, BDV,OLTC

Why saturation region slowly shifted in the left side?

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when a machine act as genartor and as motor?

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which oil is used in transformer?

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A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

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what is MCCB?

8 Answers   NTPC,

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what is the efficiency of thyristor

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The efficiency figures for energy efficient motors (in comparison with standard efficiency motor) can be generally higher by____%.

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we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

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Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

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Where the excitation is given either stator or rotor in actually in power plants?

8 Answers  

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Why are the cores of large transformers built up of circular transactions ?

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3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

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