Answer / shujath

Power factor is cosine angle between volatge and current

Answer / suhailpro

power factor= cos( R/Z)
Active power= V*I*cos(R/Z)
Apparent Power= V*I
Reactive power= V*I*sin(R/Z)

Answer / jayanta

The total power is the apparent power which is the vector sum of real and reactive power.as the name suggest power factor is a factor of which the total power is real or useful power.it is the cosine of angle between voltage and current.

What is meant by control system?

0 Answers  

---

what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?

1 Answers  

---

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

0 Answers   Bhel,

---

How colour picturetube works & how many year it will works.

0 Answers  

---

What is the difference between PLC and Embeded system

0 Answers  

---

how the characterstics of control valve being done

0 Answers  

---

What is the safety protection? Name the protections of Transformer?

1 Answers   HSL,

---

transmisssion type

0 Answers  

---

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.

16 Answers   BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp,

---

critically criticize the application of ring main unit in power system

0 Answers  

---

what is rocking arrangement in arc heating

0 Answers  

---

wht is an AVO metre. and whre it is used?

1 Answers   Mayflower,

---