3) How earthing is done? How it measured? Write the method for earthing? How the earth resistance is kept low?

1 Answers   Innovative Energy,

---

what are the materials used in HRC fuse

3 Answers   Bhel,

---

Maintenance of transformer???

0 Answers   Adani,

---

What is the difference between induction generator and synchronous generator?

3 Answers  

---

Ratings of power transformer,Distribution transformer.

0 Answers  

---

why we use perllel conection system in the wiring?

4 Answers   Airtel,

---

how we calculate the 30 KW 3phase electric motor current on noload

23 Answers   Monnet, Siemens, SSR, Supermac Industries,

---

which is better 50 HZ supply or 60 HZ supply?

6 Answers  

---

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

---

what is the constructional difference between a power transformer and potentian transformer?

0 Answers   BTM,

---

Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

0 Answers  

---

what is laser diodes?

0 Answers  

---