Answer / 3nath

for efficient operation we have to maintain unity power factor(1) but it is possible only for resistive loads
that's why in EB lines trys to maintain approximately 1 that is 0.99 to decrease the losses. capacitor bank used to POWER FACTOR correction

Answer / vicky

Generally capacitors are used to improve power factors in inductive loads... Inductive load will reduce the current phase with voltage.. so lagging power factor is obtained.. in order to recover that, capacitance is provided which will reduce the voltage phase with current..so the pf remains almost near to 1(not exactly one)...

Answer / perambalur sakthivel

(1)the cosine angle between voltage and current is called
power factor ,

already we know very well about cos value

cas 0= 1

(2)whenever the cosine angle between voltage and current
zero time a full power is utilized / consumed

but power factor lagging time a full power is not
utilized/consumed

(3)so we are maintained in power factor in unity




(4) to regulate voltage in power system we are used in
capacitor bank used(vanthni@yahoo.com)

Answer / hkrish.eee

iron loss readused

if our motor load is 150 amp v- kv and we want to install capacitor bank then what is the exact value of that capacitor bank that we should install?and how we calculate that

0 Answers  

---

how to checking earth restence with earthtester

1 Answers   NTPC,

---

Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?

0 Answers   NTPC,

---

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 Answers  

---

what's ripple content in rectifier? how it formed?

1 Answers  

---

why we cannot protect 100% winding of an alternator by using differential protection?

0 Answers  

---

What is the basic difference among IPS,UPS,EPS?

2 Answers   ABB, Navana,

---

How to calculate HV Cable Sizing & what are the factors to be considered for selection?.

2 Answers  

---

What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?

1 Answers  

---

What are various power system instabilities and what are their effects on power system operation?

1 Answers  

---

what is W.T?specify the acceptable range?

0 Answers  

---

we have 15 ampere variyac but we want 30 ampere variyac what we do

0 Answers   Delta Roto Tech,

---