working principle a.v.r. ?

0 Answers   Gem Sugars,

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What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

0 Answers  

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how can we design robots

0 Answers   Maruti Suzuki,

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Dear all, kindly give me the details of leectrical design engineer course details/institute in hyderabad /any where in india.

1 Answers   Reliance,

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What is maximum load capacity of 800 VA inverter?

5 Answers  

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Why CT secondary is grounded?

11 Answers   GE,

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How can find thermal state value in relay for calculate thermal overload.

0 Answers  

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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What is mean by STUB protection?

0 Answers  

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as ac supply is given 2 the transformer why it doesnot depends upon powerfactor????

2 Answers  

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what you mean by current? what you mean by voltage? what is difference between star and delta connection in motor side?

2 Answers   Adani,

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why rotor winding in induction motor is not earthed. normally we uses star winding in rotor .why?

3 Answers   Anglo Platinum, TATA,

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