Answer / nishad

Above answer almost correct. Eventhough I would like to add
something.
In Load current there are two components 1> active
components which is the current consuming by the custmer.
2> Recative components which is the current responsible for
the system, lead to lag / lead.
well, If reactive power is increased, PF will be lag. means
the system will carry more current for the disered out put
the same of unity PF. So our losses will increases like
more bigger size cable, breaker we need.as well as our
power system will over loaded. as reasult CU loss & Iron
loss will increase. so try to avoid that stage.
If active powre increase, then also system will over
loaded. to avoid that, share the load of particular system

Answer / iamdon

Reactive power flows from higher voltage to lower
voltage.Flow of increased reactive power in line
causes power factor to reduce.For fixed value of
sending end voltage, receiving end voltage drops.
Active power flows from side which has leading
voltage angle to lagging end.
Increased Active power flow causes more line losses.

Answer / ballaya

p=v*i*cos(φ),so as mentioned above,reactive power inc cosφ
inc(look power triangle) as voltage is constant so current decreases to maintain he given power

why the armature coil in dc machine is round?? swagat k.

1 Answers  

---

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

0 Answers  

---

what is the effect of un-synchronized power.

0 Answers  

---

The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2

3 Answers   Sona,

---

which connection is there in a rotor of the motor

2 Answers   All Trades Electrical, HAL,

---

why inverter rating is in KVA

3 Answers   Alstom, JSW,

---

is it possible to step down voltage of single phase from a three phase sysem? explain

2 Answers  

---

What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

---

in a dc shunt motor what happens if motor takes high current,no speed

2 Answers  

---

what effect will 10 milliampere current cause to human body

1 Answers   NPCIL,

---

What is the meaning of Dyn11 of Transformer.

17 Answers  

---

Explain the advantages and disadvantages of thermal power plant?

0 Answers  

---