Answer / hari krishna

transformers are exclusively for change of voltage only, if
the transformer output frequency is 200HZ it means that
transformer input frequency is also 200HZ.

Answer / sanjoy_dee0038

when the lamination of core is reduced. Normally it is
0.35mm to 0.50mm. Becauselamination is inversly related to
frequency

how we sesign the transformer give some specifion regarding design of transformers

0 Answers  

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in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

0 Answers  

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

0 Answers  

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How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).

0 Answers   ONGC,

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If i am running of spindle at 2000rpm ,but How to spindle stop at the second I am resetting the machine in CNC machines

0 Answers  

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

15 Answers   Bhel, Sail, Sterling Telecom, TCS,

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What Normal(Tangent) towers and Tension(Cut-point) Towers?

1 Answers   ABB, BGR Energy, NTPC, Powermec,

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what is active power and rective power and power factor

1 Answers  

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Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

0 Answers  

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What is the meaning of dsl line in eot crane , and why it is Called down shop lead ? Pls tell exact answer.

3 Answers  

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What is the function of Lightning Arrester & Wavetrap in Power system ??

18 Answers   ABB, Bhel, Energy Infratech, Infosys, NTPC,

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How do you select the pickup value of the relay?

0 Answers  

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