Answer / ratnakar

we step up the voltage for reducing the losses,step down
level of voltages depending on applications&line length b/w
sub station to load centers.we can directly step down the
voltage from 33kv to 433v in various industrial applications

Answer / anil

if we need to step down from 33kv to 415V and same is
possible. but the problem is size of transformer due to
heavy current in secondary side. winding is required. this
will make the transformer bulky. not easy to transport to
load center along with various operation problem.

Answer / edwin

i think it is a question of transformer availability.most
tx have standardised voltages.the other reason is safety.

what is a kit kat fuse?

5 Answers   TCS,

---

will the power consumption remains the same when speed of the fan cnanges??if so y??

2 Answers  

---

how a DC clampmeter works if DC cant b step up r down?

1 Answers  

---

Safety of dry type transformer

0 Answers   Icon,

---

how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

0 Answers  

---

---

different between circuit breaker & switchgear & relays

6 Answers   EFS,

---

what is the difference between earth leakage and earth fault?

0 Answers   L&T,

---

why we use 110vac in overhead crains? why not 220v, 24v

3 Answers   SOFT,

---

What happens if ac is applied to dc systems and vice versa?

5 Answers  

---

Can anybody tell the formula to calculate temparature rise in the cable with respect to current?

1 Answers  

---

Between Star-Delta & Star-Star Power transformer which one is efficent for Earth Fault?

10 Answers  

---

What is the high series capacitance winding on high voltage power transformer ?

0 Answers  

---