Whats the frequency used in Rodents Repllant System????? What is the Diff btw Infrasonic & Ultrasonic Frquencies???

1 Answers   Emerson,

---

Why D.C Voltage used in Meggering...as well as in Hipot test? why not A.C?

2 Answers  

---

What are the special protection given for high capacity Motor, more then 10mw

2 Answers  

---

what will happen if synchronous machine rotor fed from single phase ac supply 

0 Answers  

---

Explain M Var? Which types of problem occurs when reactive power increase at the time of full load of plant and at the time of synchronize of plant?

0 Answers  

---

---

Dear Respected sir how to test ABB REX521 protection relay by relay tester.

0 Answers  

---

which type of motor we are using in local train???

4 Answers   Asia MotorWorks AMW,

---

what is the potential of 11kv A.B.Switch

1 Answers   Power Grid,

---

In explosive and polluted environments which type of motors do we use?

3 Answers   NTPC,

---

why transmiision rating in kva?

4 Answers  

---

WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB

0 Answers  

---

Pl. brief about break-down maintenance of machine tool.

0 Answers  

---