Answer Posted / b. janardhana rao

In 3 phase induction motors we want to change direction of motor any one of 3 phses polarity we will change automatically change the direction. Example. RYB we change to rby or yrb.

The moisture in air will condense at

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Why we use circular(Stepped) cross section in transformer core?

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Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

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what is the effect of un-synchronized power.

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why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

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Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

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if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain

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DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

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List examples of voltage source?

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what is the advantages og idmt relay over magnetic relay??

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I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

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How to calculate capacitor bank size at a load 800kVA.

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What is the difference between Delta & Wye windings?

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

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how to do the ductor test?

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