DieselShip's Online Content Library

Q1.  A 525 m, two core distributor cable is fed at one end with 240 V d.c and at the other end with 250 V d.c. The following loads are applied at distances measured from 240 V end:

i) Load 1 10 A at 100 m

ii) Load 2 100 A at 250 m

iii) Load 3 70 A at 450 m

iv) Load 4 25 A at 500 m

The cable resistance (go and return) is 0.08 Ω per 100 m.

Calculate EACH of the following:

(a) The current supplied at each end of the cable distributor; (6)

(b) The voltage at each end; (8)

(c) The power delivered at each end of the cable distributor. (2)