resistance switching is used in case of- ? a. air blast CB b. bulk oil CB c. minimum oil CB d. all types of CB

4 Answers   HCL, SSC,

---

what is the difference between 4pole & 6pole DC Motors & give advantage ?

0 Answers  

---

why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

---

the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and was found to be 250w and 800w respectively.the hysteresis loss at 50hz would be................?????

1 Answers   ABB,

---

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

---

---

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

0 Answers  

---

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

0 Answers  

---

What is transmittance?

0 Answers  

---

transformer phasor diagram under load explain it?

0 Answers  

---

salam,hi, i need to know what the spesification of 300amp msb...

0 Answers  

---

what's ripple content in rectifier? how it formed?

1 Answers  

---

what is the basic construction diffrance between servo motor ans sqiralcage induction motor

0 Answers  

---