A three phase, 50Hz transmission line consists of three equal conductors of radii r placed in a horizontal plane with a spacing of 6m between middle and outer conductor. If the radius of each conductor is 12.5 mm, then inductance per phase per km of the transposed line will be

A three phase, 50Hz transmission line consists of three equal conducto

1.	A three phase, 50Hz transmission line consists of three equal conductors of radii r placed in a horizontal plane with a spacing of 6m between middle and outer conductor. If the radius of each conductor is 12.5 mm, then inductance per phase per km of the transposed line will be
A.	1.33 mH/km
B.	1.65 mH/km
C.	0.38 mH/km
D.	2.145 mH/km
Answer» B. 1.65 mH/km

Discussion

No Comment Found

Related MCQs

The cost of material used in a distribution circuit per kVA of the distributed power varies as
What will be the pd at point B if a pd of 300 V is maintained at a point A, for a 2 wire dc distributor cable AB if 2 km long and supplies loads of 100A, 150A, 200A, and 50A suited at 500m, 1000m, 1600m, and 2000m from the feeding point A. Each conductor has a resistance of 0.01 per 1000 m.
What is the loss factor in a distribution system?
A 2 wire dc street mains AB, 600 m long is fed from both ends at 220 V. Loads of 20 A, 40 A, 50 A and 30 A are tapped at distances 100m, 250m, 400m and 500m from the end A. If the area of cross section of distributor is 1 cm, what will be the minimum consumer voltage? If ? = 1.7 * 10 cm.
Installation of capacitors at suitable locations and of optimum size in a distribution system results ini. Improved voltage regulation.ii. Reduction in distribution power losses.iii. Reduction of kVA rating of distribution transformers.Which among the above statements are correct?
A 300m ring distributor has loads as shown in the fig. The distances are in metres. The resistance of each conductor is 0.2 W per 1000 metres and loads are tapped off at B, C, D. If the distributor is fed at A at 240 V, what will be the voltage at B?
In a balanced 3 phase, 4 wire ac system the phase sequence is RYB. If the voltage of R phase = 230 0 volts, then what will be the B phase?
A single phase AC distributor supplies two single phase loads as shown. What is the voltage drop from A to C?
Strain and Shackle type insulators are provided on which type of plane?
Assertion (A): Glazing on ceramic insulators is done to make it smooth and non absorbent.Reason (R): Moisture from atmosphere collects on the surface causing electrical breakdown.

A three phase, 50Hz transmission line consists of three equal conductors of radii r placed in a horizontal plane with a spacing of 6m between middle and outer conductor. If the radius of each conductor is 12.5 mm, then inductance per phase per km of the transposed line will be

Discussion

No Comment Found

Related MCQs

Reply to Comment