What is the working principle of ceiling fan?

6 Answers   Indian Navy,

---

What is the technical reason for adopting color coding of three phase system as RYB.

11 Answers   ABB, ERDA,

---

Why Earth pits are inter connected

8 Answers   Airtel, Taj Group,

---

why do power factor in the three phase induction motor increases with the load ???.

3 Answers   Jindal,

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

---

---

WHAT IS A BASIC DIFFERENCE BETWEEN THYRISTOR,TRIAC AND A DIAC.AND WHAT R THERE APPLICATIONS?

5 Answers   Petronas, TCS,

---

Different types of relay fault which phase sequence??

0 Answers  

---

In a 3 phase squirrel cage induction motor why does rotor rotate? will 3 phase transformer rotate like a motor if it is placed on bearings and powered up? give reason

10 Answers   Siemens,

---

what is thermo stat, explain how its working?

1 Answers  

---

what will happen if we directly give supply to rotor of a induction motor?

1 Answers  

---

control & auxilary circuits used for circuir breakers

0 Answers  

---

if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

0 Answers  

---