why we use 3 phase in our country?..why no 4,5 or 2??

2 Answers   Siemens,

---

What is Difference Between static & Dynamic Pressure of Fan & Blowers

2 Answers  

---

what is the order of mgnetiation current in a current transformer of 1000A/1A ratio?

2 Answers   Power Grid,

---

can transformer develop three phase poer from a single phase source?

2 Answers  

---

what is general test conduted by transformer

8 Answers   Wipro,

---

what is main reason for grid earthing for any industry

4 Answers  

---

how calculate the electrical load for industry and office

2 Answers  

---

how solar power plant energy meter multiplication factor

0 Answers  

---

which meter used to measure a flus

2 Answers   RRB,

---

Dear all, kindly give me the details of leectrical design engineer course details/institute in hyderabad /any where in india.

1 Answers   Reliance,

---

what is meant by excitation current & armature current ? where its produce & how we can calculate ?

0 Answers  

---

can i use 2000/5A Clamp meter to measure HT cable

0 Answers   century, Engro,

---