Answer / deepak mishra

it basically depends on area of aplication suppose in dc
transmission line we are using cu cable but for same
voltage in ac transmission we require more cross sectional
area as there is skin effect and lossed are more. while in
simple circuit like lighting we can use same cu wire.

Answer / xyz

See it depends basically on application, if its simle pure
electrical circuit of lamp or heater then its simply the
amps that will decide whether you can use it or not
otherwise then type of cable comes into consideration like
their are different cables for power and controls like wise
you can clasify further.

Answer / nakkeeran

no..because in AC only high voltage we use the copper
cable..in dc wwe do not use that.....

what formula can be apply to calculate the No of rtrand of a cable. ?

1 Answers  

---

What is the necessary and sufficient condition for stability.

0 Answers  

---

What do you mean by reach and reach the point of the relay?

0 Answers  

---

if earthing is used in place of neutral how the circuit completd.

7 Answers   Epitome,

---

if we know Fault level say 25 KA , How to decide busbar size for Distribution network of 1000 Amp Breaker ? Sample Calculation or Farmula Available or not ?

4 Answers   TCS,

---

why 3 phase motors are preferable over single phase motors ?

4 Answers  

---

In what condition the HT fuse breakes?

0 Answers  

---

Can you explain about TEE protection scheme?

0 Answers   Voltech,

---

What core magnetic balance test of transformer? How to do this test in a three phase Star star (star-LV, star-HV) transformer? How to measure and where to measure?

1 Answers   Alstom,

---

What is Lockout Relay and what is use of it in electrical installation

1 Answers  

---

what is the size of cable for 15kw motor and 85 meter cable length using with vfd

0 Answers  

---

Is itnecessary to use capacitor in an Fluorescent Tube Light Fixtures? Why? What if not capacitors are not included?

2 Answers  

---