Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

0 Answers  

---

in how many ways we can make induction motor to run in reverse direction?

5 Answers  

---

HOW TO CALICULATE THE LEAD ACID BATTERY AH AND HOW TO FIND THE 1.2KVA UPS BACKUP @ 1000WATTS LOAD?

2 Answers  

---

In 2500kva transformer how much is the withstand High voltage power frequency between primary to secondary and earth? And secondary to primary and earth?

1 Answers   Honeywell,

---

How CFL &T5 tube light glows?

0 Answers   HAL,

---

What is meant by a linear circuit and what is a non- linear circuit?

5 Answers  

---

what is difference between the buscoupler and bus raiser?

1 Answers   Synechron,

---

why we grounding the neutral of a transformer?

3 Answers   GAS,

---

Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

0 Answers  

---

Describe: Energy efficient motors

1 Answers   Reliance,

---

what is the use of the puls transformer in UPS & how it works???????????

0 Answers  

---

In which working principal temperature transmitter work.explain in detailed.

0 Answers  

---