Answer / er. ankush miglani 9718151073

cu: 1. costly
2. higher current rating
3. less power losses
4. stronger than Al
5. 1 sqmm of cu can take current upto 4.5 amp( 2nd
point)
6. more heat resistive
7. good conductor coz of higher current rating
Al: 1. cheaper
2. low current rating
3. more power losses than cu
4. weaker
5. 1 sqmm = 1.2 amp
6. less heat resistive
7. good conductor but cu

Answer / anirtuddh

the difference bet cu & Al conductor
cu has high tensile strength than Al

Answer / m s rana

Cu - Good conductor higher current rating
high current rating
less power losses
1 sqmm of cu can take current upto 4.5 amp
costly conductor
more heat resistive
stronger than Al

Al good conductor but not then cu
low current rating
more power losses than cu condctor
less heat resistive

in traction which type of supply are used

15 Answers   APGenco, Construction,

---

In transformer which temp should be less oil temp are winding temp?

7 Answers   TCS,

---

Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 Answers  

---

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

0 Answers   Manipal Hospital,

---

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

0 Answers  

---

---

415v 14kw so can u tell me how i can measure the cable size.then size of the earth also

1 Answers  

---

What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

0 Answers  

---

what is ment by doublefield revolving theory?

2 Answers  

---

How will change the frequency in distribution side?

0 Answers  

---

what are all the daily preventive maintainance carried out in transformer?

1 Answers  

---

what is the function of DC panel in substation?

4 Answers  

---

what is the formulae for selcting capacitor bank to increas pf

3 Answers  

---