EBK DELMAR'S STANDARD TEXTBOOK OF ELECT
6th Edition
ISBN: 8220100546686
Author: Herman
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 23, Problem 4PP
Assume that the circuit shown in Figure 23-2 is connected co a 1000-Hz line and has a true power of 486.75 W and a reactive power of 187.5 VARs. The coral current flow in the circuit is 7.5 A. Find the missing values.
ET __________________ | ER __________________ | EC __________________ |
IT 7.5 A __________________ | IR __________________ | IC __________________ |
Z __________________ | R __________________ | XC __________________ |
VA __________________ | P 486.75 W _______________ | VARsC 187.5 ____________ |
PF __________________ | ∠θ __________________ | C __________________ |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
11.a. Which of the following is a point where a grounding electrode conductor connection must be made inthe communication system?A. The flexible nonmetallic power service racewayB. The grounding electrode conductor or metal enclosure for a grounding electrode conductorC. The space opposite the service equipment enclosureD. The grounded exterior metal water piping system within six feet of the point where it enters the building11.b. The equipment grounding conductor of a pump motor for a swimming pool must be grounded with asolid copper conductor that's no smaller thanA. AWG 8.B. AWG 12.C. AWG 10.D. AWG 6.
What is the reason why the cable trays must be connected to the grounding sytem and all metal parts in power plant operation. Can you please expalain why it is cable trays ,ust be electrically and mechanically connected to the grounding system.
Refer to the National Electrical Code or the working drawings when necessary. Whereapplicable, responses should be written in complete sentences.A 300-kilovolt-ampere transformer bank consisting of three 100-kilovolt-amperetransformers has a 3-phase, 480-volt delta primary and a 120/240-volt, 3-phase, 4-wiredelta-connected secondary.For problems 1 through 4 show calculations and/or source of information.
1. Sketch the secondary connections, and indicate where a 120-volt load couldbe connected.
Chapter 23 Solutions
EBK DELMAR'S STANDARD TEXTBOOK OF ELECT
Ch. 23 - When a capacitor and a resistor are connected in...Ch. 23 - A capacitor and a resistor are connected in...Ch. 23 - What is the impedance of the circuit in Question...Ch. 23 - What is the power factor of the circuit in...Ch. 23 - How many degrees out of phase are the current and...Ch. 23 - Refer to the formulas in Appendix B in the...Ch. 23 - What is the capacitance of the capacitor in...Ch. 23 - A resistor and capacitor are connected in parallel...Ch. 23 - Prob. 1PPCh. 23 - Prob. 2PP
Ch. 23 - Prob. 3PPCh. 23 - Assume that the circuit shown in Figure 23-2 is...Ch. 23 - In an RC parallel circuit, R=3.6kandXC=4.7k. Find...Ch. 23 - In an RC parallel circuit,...Ch. 23 - In an RC parallel circuit, ET=120volts,IT=1.2...Ch. 23 - In an RC parallel circuit, the apparent power is...Ch. 23 - In an RC parallel circuit, the true power is 780...Ch. 23 - In an RC parallel circuit, ET=7.5 volts at 1 kHz....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Refer to the National Electrical Code or the working drawings when necessary. Whereapplicable, responses should be written in complete sentences.A 300-kilovolt-ampere transformer bank consisting of three 100-kilovolt-amperetransformers has a 3-phase, 480-volt delta primary and a 120/240-volt, 3-phase, 4-wiredelta-connected secondary.For problems 1 through 4 show calculations and/or source of information. 1. What is the proper rating of the fuses to install for overcurrent protection of thesecondary?2. What is the kilovolt-ampere of the bank if one of the transformers is removed?arrow_forwardRefer to the National Electrical Code or the working drawings when necessary. Whereapplicable, responses should be written in complete sentences.A 300-kilovolt-ampere transformer bank consisting of three 100-kilovolt-amperetransformers has a 3-phase, 480-volt delta primary and a 120/240-volt, 3-phase, 4-wiredelta-connected secondary.For problems 1 through 4 show calculations and/or source of information 1. What is the full-load current in the primary? 2. What is the full-load current in the secondary?arrow_forwardSix 1/0 aluminum conductors are to be run in a conduit. Each conductor has type THWN insulation's, and the ambient air temperature is 30 degrees celcius. What is the ampacity of each conductor?arrow_forward
- A single-phased load is located 2800 ft from its source. The load draws a current of 86 A and operates on 480 volts. The maximum voltage drop cannot be greater than 3%. What size aluminum conductors should be installed to operate this load?arrow_forwardHow many amperes does a 1-horsepower, 240-volt, single-phase motor draw? (See Table 430.248.) _________________arrow_forwardWhat size conductor should be used in a 2-wire system to service a load of 6,500 watts, 150 feet from the generator? The voltage at the load is 120 volts, and the voltage drop should not exceed 2.5 volts. Round to a whole number. value of K for copper is 10.8arrow_forward
- clear and correct on keyboard or will dislike The power transmission lines deliver power: A) From the generator substations to the load center customers B) From the distribution substations to the generator substations C) None of the choices are correct D) From the generator substations to the distribution substations E) From the generators to the generator substationsarrow_forwardPlease draw me a 230 volts 3 phase ligthing panel diagram with loads and labelled.arrow_forwardDetermine the following based on the wiring diagram illustrated in figure 8 on worksheet 5 if it is that of a 6-pole, non-salient pole, 60-Hz, 3-phase AC generator stator that has 10 volts induced in each coil. What is the line voltage between L1 & L2? - A-30V, B-180V, C-312V, D- none of the above. What is the line voltage between L2 & L3? -A-30V, B-180V, C-312V, D- none of the above. What is the line voltage between L1 & L3?-A-30V, B-180V, C-312V, D- none of the abovearrow_forward
- 20.a. Which of the following conductors can you install when using the pressure terminals on a receptacle?A. No. 12 solid copperB. No. 10 solid copperC. No. 14 solid aluminumD. No. 12 solid aluminumEnd of exam20.b. Two switches are used to control a light from either end of a hallway. The two conductors that directlyjoin the switches areA. stranded.B. travelers.C. two-phase conductors.D. grounding conductors.arrow_forwarda. A 25-ampere branch-circuit conductor is derated to 70%. It is important to provide proper overcurrent protection for these conductors. The derated conductor ampacity is ___________________________________________________________________________________________________________________________________ b. If the connected load is a fixed nonmotor, noncontinuous load, the branch-circuit overcurrent device may be sized at (20) (25) amperes. (Circle the correct answer.) c. If the above circuits supply receptacle outlets, the branch-circuit overcurrent device must be sized at not over (15) (20) (25) amperes. (Circle the correct answer.)arrow_forwardYou are working as an electrician installing fluorescent lights. You notice that the lights were made in Europe and that the ballasts are rated for operation on a 50-Hz system. Will these ballasts be harmed by overcurrent if they are connected to 60 Hz? If there is a problem with these lights, what will be the most likely cause of the trouble?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENTDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
EBK ELECTRICAL WIRING RESIDENTIAL
Electrical Engineering
ISBN:9781337516549
Author:Simmons
Publisher:CENGAGE LEARNING - CONSIGNMENT
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Maximum Power Transfer Theorem Using Nodal Analysis & Thevenin Equivalent Circuits; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=8CA6ZNXgI-Y;License: Standard Youtube License