wha tis the ac motor used for traction system

4 Answers  

---

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

0 Answers   ABB,

---

give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

0 Answers  

---

minimum ohm for lighting minimum ohm for Earthing

3 Answers  

---

Star Delta Diagram with full description

0 Answers   SKS Microfinance, Syscom,

---

---

How to calculate no of EARTH PIT? Describe the formula as per IS standard?

0 Answers  

---

ple send to the how to improve the efficiency & economical to the thermal power plant

1 Answers  

---

Can we convert off line transformer to on line transformer

0 Answers   NHPC,

---

How the unidirectional torque produced in dc motor

2 Answers   CGL, Sail,

---

Why derating factor os applied on Cables?

0 Answers  

---

sir, how to select the cable size, what is the parameters use ang what is the formulas use for this cable size calculations. please tell me.

4 Answers   ISRO, Power Grid,

---

which type of capacitor store high amount of energy for long time ? ( polarized or unpolarized )

1 Answers  

---