Please answer in typing format 29. *The switch for the network in Fig. 11.91 has been closed for about 1 h. It is then opened at thetime defined as t=0 s.Fig. 11.91(1=0 s)EFG_11_091.jpg• 2 ΜΩww000CUM5 HRmeter = 10 MOProblem 29.i-subscript-L flows through L to ground. v-subscript-L is across L and measured by digitalvoltmeter of ten mega-ohms intemal resistance R-subscript-meter.a. Determine the time required for the current it to drop to 10 Ab. Find the voltage up at t = 10 us.c. Calculate ut att = 5T.

Answered: Image /qna-images/answer/77bf5b8f-6938-40a7-a395-177e2d0a66d4.jpg

Answered: 29. *The switch for the network in Fig.…

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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Similar questions

A 3-phase, 50 Hz, 3000 V motor develops 600 H.P. (447·6 kW), the power factor being 0·75 lagging and the efficiency 0·93. A bank of capacitors is connected in delta across the supply terminals and power factor raised to 0·9 lagging. Each of the capacitance units is built of five similar 600-V capacitors. Determine the leading Kvar taken by each three sets.
An e.m.f. whose instantaneous value at time t is given by v(t) = 283 sin (314t + π/4) volts is applied to an inductive circuit and the current in the circuit is i(t) = 5.66 sin (314t - π/6) amperes. Determine: (iii) the active power absorbed (in W)the answer is not 207.286
You own a factory that uses several conveyor belts and other motor-driven machineries. Upon measuring the factory's apparent power requirement and power factor, it turns out that it runs at 15 MVA at 0.7 lagging of; therefore, it is too inductive! To avoid electrical code violations, the factory must operate at a pf of at least 0.9 lagging. If the factory is connected to 34.5 kV AC at 60 Hz, what is the size of the compensating capacitor that must be installed to achieve the desired pf level? Express the answer in microfarads. The given voltage can be assumed to be at angle zero.
An industrial assembly hall is continuously lightedby one hundred 40-W mercury vapor lamps suppliedby a 120-V and 60-Hz source with a power factor of0.65. Due to the low power factor, a 25 percent penaltyis applied at billing. If the average price of 1 kWh is$0.01 and the capacitor’s average price is $50 permillifarad, compute after how many days of operationthe penalty billing covers the price of the power factorcorrection capacitor. (To avoid penalty, the powerfactor must be greater than 0.85.)
An electrical load of 250Kva has a pf of 0.65 inductive. Connects to the same network a 75kW star synchronous motor, with 88% efficiency, to raise the pf of the installation at 0.85 inductive.a) Calculate the apparent pf of the synchronous motor and the pf at which it will work.b) If the supply voltage is 380V, and the motor has a synchronous impedanceof j0.5 ohms per phase determine the induced emf of the machine.
A hydro electric power station is used to supplement the unmet constant load demand for 2 hours and 30 minutes during peak periods.it has a reservoir of 0.03km2 area and 2.7 meters depth .The overall water in the reservoir can generate a total energy of 17236kwh at an effective head of 95 metres.after supplying the load.the reservoir depth has decreased by 20%. 6.Determine the overall efficiency of the power station 7.Determine the load consumptio(kWh) 8.Determine the volumetric flow rate(m3/s)
. A power station has a connected load of 48 MW. The energy generated for the year is 61,500 MWh. If the station has a load factor of 35%, solve the demand factor of the station. Answer: 0.4179 or 41.79% Subject: Distribution System and Substation Design
TOPIC: Ohm's Law, Power and Generating Direct CurrentDirect Current Circuit AnalysisInductor, Capacitor, Generating Alternating Current Please Answer: V6 R45 R2345
A load in a factory consists of the following i. 9kW of lighting at unity power factor ii. A 12kVa motor at 0.75 p.f. lagging iii. A number of small motors taking 15kW at 0.6 p.f. lagging. The loads are balanced over the three phases of a 414V supply system. Determine A. The total kW B. The total kVar C. The overall kVa D. The overall power factor E. The line current. F. Draw the final power triangle of the combined load
A 550-V feeder line supplies an industrial plant consisting of a motor drawing 60 kW at 0.75 pf (inductive), a capacitor with a rating of 20 kVAR, and lighting drawing 10 kW. (a) Calculate the total reactive power and apparent power absorbed by the plant. (b) Determine the overall pf. (c) Find the current in the feeder line.
COURSE: Electrical EngineeringSUBJECT: Electrical ApparatusINSTRUCTIONS:• Write the GIVEN with their respective symbols and units.• Do not skip the SOLUTIONS, do it step-by-step with their respective symbols and units• Round up to 3 three decimal places the FINAL ANSWERS and BOX it. PROBLEM: Determine the complex power for the following cases:a. Q = 2000 VAR, pf = 0.9 (leading)b. ????=220 ?,?=1 ??,|?|=40 Ω (inductive)
A load of 500 kVA operates on 1100 V, 50 Hz mains with power factor of 0.6 lagging. It is required to improve the power factor to 0.95 lagging by using the star connected capacitor bank. Assuming that the load KVA remains constant, suggest the rating of the capacitors.

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