Answer / niladri

its mean the multiplication of secondary voltage & current
of transformer.

Answer / sudarshan

1250 kva is rating of transformer & it is apparent power
Apparent power=VA
TRANSFORMER TRANSFORM ENERGY WITHOUT CHANGING FREQ.
WE GET POWER IN SEC. SIDE CORRESPONDING WITH PRI. SIDE
KVA=√3VA
=1.73VA

1. Why a DC motor starter is called 3 point starter

21 Answers   ABB, CG, College School Exams Tests, Crompton Greaves, Infosys, Siva,

---

What is the difference between MCB and Earth MCB? What is the working principal of MCB?

2 Answers  

---

why middle phase should used for earth fault and other phases used for over current in overcurrent and earth fault relay?

7 Answers   ABB, ONGC,

---

Hoe to calculate body earthing conductor size ?

1 Answers   IES,

---

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

---

why synchronization done in clockwise direction?

12 Answers   Hindalco, NTPC,

---

what is transistors comprised of?

0 Answers  

---

what role neutral plays in electrical circuit? If neutral is not there what will be the effect

1 Answers  

---

why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

4 Answers  

---

Define unilateral circuit?

0 Answers  

---

which type of harmonics minimum produce in 12 pulse rectiformer transformer? a)3rd b)5th c)7th d)11th

4 Answers   Power Grid, Powerica,

---

What is the difference between AVR and Servo Stabliser

3 Answers   Wipro,

---