Answer / sunil

(C)In a distribution system, delta-star is best suited

Answer / sourabh

Ans: delta star
In 11kv/440v STEP DOWN TRANSFORMER primary side 3 WIRE{LINE WIRE'S (R,Y,B)} ARE THERE DELTS WINDING USED BUT IN SECONDARY SIDE 4 WIRE{3 LINE WIRE'S (R,Y,B) AND 1 NUTREAL} 120*3=360 angle.

Am using an electronic digital display to see the RPM of ABB ACS 550 drive, which is showing negative value when the motor & drive in stop mode but it is showing correct value during the run mode. can anyone help me out??

2 Answers   Bala Power Solutions,

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in three phase it represented by R-Y-B.what is full form of R-Y-B.

11 Answers   Sun Pharma, TCS,

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what is the difference between RMS & TRUE RMS VOLTAGE

0 Answers   IIT,

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we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

0 Answers  

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What is the principal of motor?

0 Answers  

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What is the difference between 2 wires RTD's and 3 wires RTD's.Kindly explain the wiring diagram.

1 Answers   QAFCO,

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what is difference Auto-transformer and ICT ?

1 Answers   CG, Descon,

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how to calculate the conductor size for certain KV transmission line and distribution line?

0 Answers   Hyundai,

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Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?

1 Answers  

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what is the role of frequency in electrical system

2 Answers   Hindalco,

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Why battery is always operate on dc supply?

1 Answers   Vikram Ispat Industries,

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Why are iron cores in transformers made laminated?

0 Answers  

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