Answer / ripon

"what is the use of reactive power"

Ans: Reactive power comes from usually reactive component
of circuit such as capacitor ,inductor.Normally we calculate
real power for power calculation .That does not mean that
reactive power is useless.For example, in motor there is a
magnetizing current and without this current motor won't
rotate but interesting matter is that since motor coils are
inductive so the power from magnetizing current also
reactive power . So will u say this power is useless?

Let u want to drink milk .So drinking milk Ur main goal
.But when u drink milk u use a glass or something to hold
the milk. U can now compare reactive power as a glass,real
power as a milk and the summation of reactive and real power
is apparent power thats mean for drinking milk ,u need milk
and glass both.

Answer / ripon

friend Vikas Tomar u r right.

Answer / vikas tomar

Ripon my friend u r right.
but as i know that that reactive power balances the grid
stablity by maintaining tha voltage constant of the
line .hence reactive power makes the voltage constant.

how can we find CT coil not working ?

7 Answers  

---

 where the Motorized mccb to be used? In Motor control center panel starters ,it is use full. please answer  

1 Answers   Voltas,

---

If there is unit power factor in a power house and a capacitor bank used in a factory at resistive load . In this case, will there leading power factor in power house across that factory.

2 Answers  

---

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

0 Answers  

---

why ac wave is sinusoidal not square or triangular wave what will be reason

1 Answers   ACPL,

---

when we megger is not damaged when we are measuring very low resistance? high d.c. voltage is produced in megger so according to i=V/R. current will be high so what is the reason ?

1 Answers  

---

what is function of pump in DG?

6 Answers   HP,

---

A.V.R maintains the voltage of a generator when it is in island mode but when the generator is synchronised with grid it maintenance the P.F,how it happens please any body explain it in detail.

2 Answers   TATA,

---

why trip circuit supervision is taking through breaker contact? what happen if takendirectly?

2 Answers   GE,

---

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 Answers  

---

Comparing to AC transmission, corona & R in DC transmission is……. a) lower b) higher c) same

3 Answers  

---

Electricity sometimes can be dangers , sometime got shoked form it . It is because of volatge or Current

6 Answers   Kirloskar,

---