why dc supply is not applied for step up or down in transformer

3 Answers  

---

What should be cable size for 75KVA 380/220 3ph transformer

3 Answers  

---

Name the component u would expect to find in a switchgear assembly?

0 Answers  

---

What is means by MacAdam Ellipse?

1 Answers  

---

can volts/Hz be relied upon to use 460v,60Hz electric motors on a 380v,50Hz power supply?

1 Answers  

---

---

what type of motor are there in megger how they work.

2 Answers  

---

how can you prove that in CE configuration a transistor has 180 degree phase shifted output

5 Answers   Bhel,

---

is 60hz freq better than 50 hz?&why?

1 Answers  

---

why needtwo winding LV and HV in transformer?

1 Answers   Organic Industries,

---

What magnetic circuit is formed in berry-type constructions and why?

0 Answers  

---

what is relay type VDG,CDG,VTT ect?

1 Answers   Bhel,

---

Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz

0 Answers  

---