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How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?
ABB,
6 51324Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?
4 11680For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?
1960why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.
1993why lightning arrestor are made by 2 stack of insulator but why cvt are fully 1 stack of insulator.
1 4201How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.
2167
How much earthing frequency is capable?
How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?
I want to know the relevant IS codes of practice which deals with different testings of cement-sand mortar (nominal mix)that is being normally used for brick work or plaster work in the construction work.
what is diff btw electric,magnetic & eletromagnetic field
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
Can anyone send most commonley asked Instrumentation questions and answers in cement industry please?
How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?
Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.
what is the difference between ups & inverter
what is castigliano theaorem
What are the drawbacks of prosthetic limb?
What does a pump develop? Give reason to support your answer.
What is the difference between the impedance percent and impedance voltage ?
acceptance criteria for concrete works
why we use kg/cm2 instead of kg/m2 as a unit of pressure. As we know kg is a MKS unit and cm is a CGS unit. So why we use combination of both(kg/cm2)while describing the pressure.
