Answer / mohammed hassan

the field is cocentrate at the sharp edge of square or
rectangular so the insulation is breakdown at this edge but
at circular the field is regular distributed

Answer / ak samy

The cables are mainly used for A.C tramission of power.As
per the SKIN effect law principle the ac current density
is concentrated on outer surfaces of the conductor with
flux distribution of concentric circles.Hence circular
cables are used an advanatge of current carrying capacity
point of view.For DC transmission the cables can be square
(or) Rectangular. It is immaterial.

Answer / kj

There are a number of reasons but I think the main 2 are
easier to make and more flexible.

I have seen multi core aluminium cables where the
conductors were formed into segments of a circle to fit
together into a smaller area.

why excitor coil of an alternator can fail

3 Answers  

---

In protection core of a C.T. why Knee pont voltage is greater than SLV and in metering its viceversa?

2 Answers  

---

How much minimum insulation required between 11kv/3.3kv transformer windings?

0 Answers   Descon,

---

How we calculate the current carrying capacity of H.T. cabel?

0 Answers   Bhel,

---

what size of copper busbar use for 11kv 630A

3 Answers   ABB,

---

What is Faraday's law

0 Answers  

---

How can we convert 11 kv to 440 volt without using transformer ?

0 Answers   Electrical,

---

If VFD is On but no starting commond on it. so how many outpout voltages of VFD

0 Answers  

---

What are the basic elements used for modeling mechanical rotational system?

0 Answers  

---

what is stray capacitance?

1 Answers  

---

What is electrical cable termination

0 Answers   Gulf,

---

what is the different bitween ETP & WTP

1 Answers   Square Pharma,

---