Fig. 3.45 2. A dc. 2-wire ring main ABCDEA is fed from 230 V supply as shown in Fig. 13.46. The resistance of each section (go and re- turn) AB, BC, CD, DE and EA is 0-1 W. The loads are tapped off as shown. Find the voltage at each load point. 227 V:V-225 V:-225 V; V- 226 VI

Fig. 3.45 2. A dc. 2-wire ring main ABCDEA is fed from 230 V supply as shown in Fig. 13.46. The resistance of each section (go and re- turn) AB, BC, CD, DE and EA is 0-1 W. The loads are tapped off as shown. Find the voltage at each load point. 227 V:V-225 V:-225 V; V- 226 VI

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

question no 2 solution only

TUTORIAL PROBLEMS
1. A 300 m ring distributor has loads as shown in Fig. 13.45 where distances are in metres. The resis-
tance of each conductor is 0-2 W per 1000 metres and the loads are tapped off at points B, Cand D as
shown. If the distributor is fed at A at 240 V, find voltages at 8, C and D.
W-236-9 V; V- 235-97 V; -237-4s V|
240 V
30 A
10 A
70
50 A
A
60
100 A
230 V
+20 A
80
70 A
10 A
Fig. 13.45
Fig. 13.46
2. A d.c. 2-wire ring main ABCDEA is fed
from 230 V supply as shown in Fig. 13.46.
The resistance of each section (go and re-
turn) AB, BC, CD, DE and EA is 0-1 W.
The loads are tapped off as shown. Find
the voltage at each load point.
I- 227 V:Ve- 225 V: V- 225 V:
V- 226 VỊ
3. In the d.c. network shown in
Fig. 13.47, A is the feeding point and
is maintained at 25o V. The resistances
of the various branches (go and return) are indicated in the figure. Determine the current in each
12 A
0.4 a
0.8 a
36 A
16 A
0.4 2
+8A
Fig, 13.47
L48- 144A : BC - 2A: DC - SA : AD= 13A|
branch.
0.8 a
0.4 2
B.
CI

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