Answer / kishor shetty

MF=(CT ratio)*(PT ratio)if HT side
eg; =(100/5A)*(11000/110V)
=20*100
=2000
in LT side
MF=(CT ratio)
=(100/5A)
=20 (PT is not applicable for LT side)

Answer / veerendra

or u can just do one thing...
see the range for the wattmeter..
& use the formula below..
((voltage range)* (current range))/ (full scale deflection
fro the meter)

what is the formula of high voltage testing of three phase induction motor?

1 Answers  

---

How to calculate the rating of ELCB OR RCCB for an equipment?

2 Answers  

---

what is the speed of a turbine in an hydroelectric power station and how many poles does it have...?

1 Answers  

---

what do you mean by puncturing of insulator by ice -coating?

2 Answers  

---

How can we get electric power from lighting ?

3 Answers   TATA,

---

what is method for testing CT

0 Answers   DCM,

---

Which motor isused in indian railway system?

3 Answers  

---

how a DC clampmeter works if DC cant b step up r down?

1 Answers  

---

how can i get elcctrical supervisor license & Certificate of competancy in gujarat? i have completed my B.E (Electrical) course from gujarat.

2 Answers   NTPC, Welspun,

---

what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????

1 Answers   Reliance,

---

What is Single Phasing fault???(not single-phase fault)

6 Answers   ABB,

---

what is the formula to find Amp. for an 3 phase moter both if H.P. or if kW is known?

5 Answers   Uttam,

---