Answer Posted / ravi teja

for 3-ph system
Kvar=Sqrt(3)*v*i*sin(phi)
or Kvar=kw*tan(phi)

and for value of capacitance when kw or kvar is known

c=KVAR/(2*3.14*f*v^2) when capacitors are connected in Star

c=KVAR/(6*3.14*f*v^2) when capacitors are connected in Delta

I think the above information is in line with your question

If u want any further details mail me @ raviteja.vaka@gmail.com

Define angle modulation?

1068

---

What is firing angle?

1160

---

Why capacitor input filter is preferred to choke input filter?

2233

---

Define what is a rectifier?

1128

---

Why is silicon preferred to germanium in the manufacturing of semiconductor devices?

1069

---

what is bts

2353

---

why is the diffusion technique of formation of resistor most widely used?

1260

---

I NEED 2006&2007 RAILWAY RECRUITMENT BOARD,JUNIOR ENGINEER (SIGNAL) Q&ANSWERS,PLEASE SEND TO: kaleelbe@yahoo.com

1867

---

Photodiode is a photovoltaic device or a photoconductive device or both?

1022

---

Distinguish between jfet and mosfet.

1206

---

What happens when an inverter is placed between both inputs of s-k flip flop?

1022

---

What is noise in modulation?

1157

---

What are the effects of ageing or using second hand IC or other electronic components?

2023

---

How to call the "Procedure" in test bench for VHDL...? Please post the answer for it....?

2184

---

Explain what is an inverter?

1080

---