A 230V radial distributor is 70m long and has a resistance of 0.0008 2/m supply and return. Four loads A, B, C and D rated at 30, 45, 60 and 80A are fed from the cable at distances of 20, 10, 15 and 25m, respectively. Calculate the total current drawn from the supply, the current in the cable between each of the loads and the voltage at load 1) if all the loads are connected.

A 230V radial distributor is 70m long and has a resistance of 0.0008 2/m supply and return. Four loads A, B, C and D rated at 30, 45, 60 and 80A are fed from the cable at distances of 20, 10, 15 and 25m, respectively. Calculate the total current drawn from the supply, the current in the cable between each of the loads and the voltage at load 1) if all the loads are connected.

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...

See similar textbooks

Similar questions

Q2/A/ What are the conditions for satisfying parallel operation of single phase transformer? Deduce an expression for the load shared by the two transformers in parallel when the transformers have equal voltage ratio? Prove your answer. B/ A 50 KVA, 2300/230 V, 60 11z transformer has a high voltage winding resistance of 0.650 and a low-voltage winding resistance of 0.0065 2. Laboratory tests showed the following results: Open circuit test: V = = 230 V, I =5.7A, P = 190 W Short circuit test: V-41.5 V, I-21.7 A, P-No wattmeter was used. 18 (2) Compute the value of primary voltage needed to give rated secondary voltage when the transformer is connected as a step-up one and is delivering 50 KVA at a power factor of 0.8 lagging. (b) Compute the efficiency under conditions of part (a).
low voltage systems What is the system called if current flows through its neutral conductor? a)Balanced b)Unbalanced c)Proactive d)Complex
Consider Two same size Parallel connected PV modules,each with the specification as Po=100W, Voc= 24.5V and Isc=5A.then choose the correct Statement Refer to this connection. a. The output power and voltage from this panel is Po=50W,Voc= 24.5V b. The output power and voltagefrom this panel is Po=200W,Voc= 24.5V c. The output power and voltage from this panel is Po=200W,Voc= 49.0V d. The output power and voltage from this panel is Po=100W,Voc= 24.5V
A two wire DC distributor AB is fed from both ends. The voltage is maintained at 230V at A and 220V at B. The total length of the feeder is 800m, with resistance of 3 Ohm 2 per Km for each conductor. The loads are tapped off as shown below. Find 1) The currents in various sections. 2) The point of minimum potential
What is the current trend of distribution substation? Can you give me an example.
5 In PV module maximum value of shunt resistance could be 200 Ohm. Select one: True False
The active component of line current in figure 1 is______. a. 12A b. 20A c. 12A d. 4A
The voltage drop percentage for a panel feeder with a no continuous load of 180A, using 3/0 THWN copper conductors at 480V, three-phase, and a length of 248' is
Q2: Equipment ratings for the four power system shown in Figure (1) are as follow: - GI-500 MVA, 13.8 kV, X = 0.2 p.u G2-750 MVA, 18 kV, X-0.18 p.u G3-1000 MVA, 20 kV, X-0.17 p.u TI = 500 MVA, 13.8/500 kV, XT1=0.12 p.u T2-750 MVA, 18/500 kV, XT2= 0.1 p.u T3-1000 MVA, 20/500 kV, XT3-0.1 p.u. (1) T1 T3 T.L 1 G1 j50 ohm 13,8/500 KV 20/500 kV T.L 2 j50 ohm T.L 3 150 ohm T2 G3 18/500 KV G2 Figure (1) neglecting resistance, transformer phase shift, and magnetizing reactance, draw the positive - sequence reactance diagram on a 1000 MVA, 20kV base in the G3.
1. Which of the following factors is not considered after selection of site for substation? d) Cost substation a) Voltage level b) Nearness to load c) Cost of the Line of the centres
INTERNATIONAL MARITIME COLLEGE OMAN Module : MELECTRO-I Lesson 1 Week :- Intorial Probleêms on KCL. and KVE Calculate the branch currents in the following circuits using Kirchhoff's Voltage and Current Law (KVL& KCL). Procedure: - 1. Mark the Nodes in the given circuit 2. Identify the Number of Loops in the circuit ( No.of Loops= No. of Currents ( 11,12,13...) 3. Assume the loop current in clockwise direction and branch currents using KCL ( Current flows from -ve to +ve in the supply voltage) 4. Write the voltage equation for each loop using KVL 5. Solve the equation to find the currents 6. Determine the current required in the elements. Q1:- 2レ IOV 25V Q2:- \ル F2 F6