Answer Posted / sandeep samant

It is due to skin effect of ac current. The most of ac current flows through the outer(circumference) part of conductor. So we use bundle conductor to increase the circumference area of conductor. it increases the current carrying capacity of conductor.

How many types of electric motors are there?

1204

---

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

2249

---

wheather the size of windings in motor and generator are the same

2020

---

What is a surge supressor why its is used in synchronous generators

2017

---

What is a difference between indoor transformer and outdoor transformer of same rating

5823

---

from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

2029

---

i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula

2209

---

hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

1925

---

I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.

2103

---

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1914

---

in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

2127

---

calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

3566

---

Difference between a pilot wire and a normal conductor?

2044

---

Why the output of OP-AMP is always less than Vcc?

1913

---

How is the speed of a DC shunt motor related to the armature current?

1183

---