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

5 Answers   Petronas, TCS,

---

can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

---

what do you mean by power factor ? in new view

3 Answers   BDL,

---

why we use stones or rock pieces in transformer area?

10 Answers  

---

How do you select a cable size(cu and Al) for a particular load

6 Answers   Pepsi,

---

how much current capacity of 300 sq. mm cable (4 core aluminium) and 150 sq. mm cable ( 4 core aluminium)

3 Answers   Bhel, RR Kabel,

---

What will happen to the speed of synchronous machine subjected beyond the pull out torque? Are the behavior shown by rotor remains same for both the alternator and motor?

1 Answers  

---

why exciter frequency 150 Hz ?

1 Answers   Siemens,

---

why transformer rating in always in KVA ?

4 Answers   Horizon Computers,

---

I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

0 Answers   College School Exams Tests,

---

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers   Usha Capacitors,

---

why capacitor bank is not used in generator power

7 Answers   Caterpillar,

---