Answer / ravi chaurasia

Real power is the power which is actually required to operate
the connected load in power sysyem.Reactive power is the
waste power from electricity board point of view but it is
the inherent requirement of the inductive loads.
In short it reduces the capacity of cables and transmission
line but is inherent requirement of the load.

Answer / ajeet

Active Power = Real Power.

Active Power:As the name itself say,which actively participate in the circuit i.e it does the useful work.Example it get convert in tilight energy,heat energy,mechanical energy etc.
Reactive power:its the one which flows back to the generating station without doing any work or convertion.It doesn't do any useful work.

For example: I gave you 100 rs (apparent power) to bring rice from a shop.But you brought rice of only 80 rs,and returned 20 rs to me.

In the above example I assumed that total 100 rs will be converted in to rice,but only 80 rs is converted into rice and 20 rs returns to me,which is not desirable for me,i want rice of 100 rs but not of only 80 rs.
So,in the above example 100 is apparent power, 80 which converted into rice is active power and 2o which comes back is reactive power.Hope this may clear your doubt.

Is This Answer Correct ? 0 Yes 0 No

Answer / pradhyumn

real power does all the useful work in the circuit, while
reactive power just flows from the source to load and again
from load to source without doing any significant work.
Reactive power in inductive circuits is balanced by
connecting capacitors in series of the circuit.

STATE AND EXPLAIN SUPER POSITION THEOREM.

3 Answers   ABB,

---

How phase to phase voltage comes 440V.

0 Answers  

---

1.how many types of relays? 2.difference between ATS& STS?

0 Answers   L&T,

---

An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%

0 Answers  

---

what is surge voltage and surge current?

2 Answers   MES,

---

---

What is dynamo function in DG sets and draw block diagram?

0 Answers   KPR Agrochem,

---

What is ELR, and where it is used ?

7 Answers   KSEB,

---

what is the size of cable for 15kw motor and 85 meter cable length using with vfd

0 Answers  

---

what is the purpose finding power factor?

3 Answers  

---

why is efficiency of transformer more than that of other rotating machines?

1 Answers  

---

hi can you give any body fault level calculation, generator fault level calculation,transformer fault level calculation for system fault level with equation? i have 3.3kv generation voltage three gas gen sets, one is 1.9MW,2nd is 2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage one gas gen sets is 3.8MW, we are step up to 22kv by transformer

3 Answers   Hindalco, Piramal Healthcare,

---

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

0 Answers  

---