Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?

0 Answers   Power Plant,

---

how are reversing the direction of rotation of dc motor

0 Answers  

---

give me a clear defination of inductance,and how can u calculate inductance of a motor

0 Answers  

---

Selection criteria for Vector group in power / distribution transformer.

1 Answers   ABC,

---

what is meaning of AMF, WHY IS USING IN GENSET

1 Answers  

---

what factor is necessary during design of HT & LT MOTORS.

2 Answers   ABB, L&T,

---

what effect on electrical equipment if PF is gone over 0.996 in leading when provider say that its keep in minimum 0.996lagging

3 Answers   ABB,

---

if transformer winding burn on dc supply then why not alternator rotor winding please post answer on y.sakhare@rediffmail.com

4 Answers   MahaGenco,

---

what is the maximum genarating voltage in india?

32 Answers  

---

Why GRR starts from 60% of motor speed why not less than 60%?

0 Answers  

---

Resistance of a conductor in a close electrical ckt is practically zero why?

1 Answers  

---

If we says that current is flow only when there is closed path & neutral work as a return path for the same. Then how circuit is closed in three phase as no neutral available ??

1 Answers   Nimbus Harbor Facilities Management,

---