electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?

3 Answers  

---

HOW DG WORKS ?

3 Answers  

---

How i can calculate current of cable according to ares?

0 Answers   Pharma,

---

in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??

3 Answers   RRB, Siemens,

---

What is the phase relationship between the primary and secondary voltages of a transformer?

0 Answers  

---

---

How eddy current generation support the idea of train braking?

0 Answers  

---

what will hapen if secodery circuit is open of current transformer WHy neutral to ground trips when neutral touches the ground

1 Answers  

---

generator(Deutz 550kv)is runing for 2 hours with load of 900 amp and then it goes in shutdown with alarm fault messege of speed fault although heirtz reading fixed at 50,what does that mean

1 Answers  

---

Is there any particular formula for sizing the bus bar based on the current rating

1 Answers   Bunt Solar,

---

what is difference between co-generation and captive power plant?

3 Answers   TATA,

---

what is meaning of bus riser

0 Answers   TeamLease,

---

how vfd drives energy save

5 Answers   PowerTech,

---