Assignment

Which of the following statements is/are true? A In purely resistive circuit, the current lags voltage. (B In purely capacitive circuit, the voltage lags current. In purely resistive circuit, the current is in phase with voltage. D In purely inductive circuit, the current leads voltage.

Which of the following statements is/are true? (A In purely inductive circuit, the current leads voltage. (B) In purely resistive circuit, the current lags voltage. C In purely resistive circuit, the current is in phase with voltage. D In purely capacitive circuit, the voltage lags current.

the course is power transmission system... Question : Differentiate between capacitance grading and Intersheath grading? dont just copy from google. thanks :)

Measure the phase shift.( Need only handwritten solution please otherwise downvote)

It is generally accepted that the failure rate for engineered dams is approximately 0.0001 failures per dam-year. This number is based on overall data that ignore the contributions of specific events like storms or the differences between different types of dams and their design, construction, and operational history. In the case of commercial nuclear power plants, the core meltdown is an event comparable to dam failure. There have been 5 core meltdowns in full-scale, commercial nuclear power plants (Three Mile Island, Chernobyl, and three units at Fukushima), and there have been about 18,000 reactor-years of operating commercial nuclear power plants since the early 1960s. a) What is the estimated rate of failure for commercial nuclear power plants in failures per reactor-year? b) The design philosophy for systems and components in nuclear power plants is that the designer should demonstrate that the probability of failure that would release radioactivity is less than 1 x 107 per year.…

Voltage sags due to short circuit and earth faults are the cause for the vast majority of equipment problems. Electronics equipment become more susceptible to voltage sag, hence the companies experience production stoppages. Voltage sag analysis is very complex issue. Based on voltage sag randon factors describe on it.

I want a solution in less than 30 minutes Often, the network is referred as an infinite bus when a change in input mechanical power or in field excitation to the unit does not cause an appreciable change in a. system frequency or terminal voltage b. Total production cost c. system frequency and terminal voltage d. system frequency alone

Subject is Power system Analysis.

Circuit breaker usually operate under   A) after D. C. component has ceased B) transient state of short-circuit current C) sub-transient state of short-circuit current D) steady state of short-circuit current

TOPIC: Power Systems, Power Plants & IlluminationINSTRUCTIONS:- Answer in this format: Given, Illustration, Required Conversion, Solution, Final Answer.- Step-by-step solution, do not skip even simple calculations to avoid confusion.- If answered in written form, make sure it is readable.PROBLEM: A generating station has two 50 MW units each running for 8,500 hours in a year and one 30 MW unit running for 1,250 hours in one year. The station output is 650 x 106 kWh per year. Calculate the utilization factor. 0.732 0.653 0.811 0.795

Explain the phenomenon of ferroresonance in power systems. Detail the underlying causes, potential consequences, and strategies for mitigating its effects on equipment and network stability.

16.The value of critical clearing time can be directly determined by using step by step method. Select one: ? Truo or false

Q5: (A) A 100 KVsurge travels on an overhead line of surge impedance 400 Q.The line is connected to a cable of surge impedance 50 Q through a resistance R. Find (1) the value of R that it absorbs maximum energy, and (2) voltage and current transmitted into cable? (B) Explain in details the following phrase (The rate of rise of re-striking voltage will become high if the fault ocurrs near the bus bar of the station?

1. Electrical explosions directly into the face of a person working on or near energizedelectrical equipment can and will cause serious injury or death. OSHA laws and NFPA70E have strict safety requirements for working on electrical equipment. The basicrules are to turn off the power before working on the equipment and to wear the propertype of nonflammable clothing. To further provide safety for the worker, the NationalElectrical Code has a requirement pertaining to arc-flash hazard warning. This requirement is found in of the NEC.

e) Find the total reactive power in the sound system without using the voltages across loads.Mention the unit. f) Find the apparent power of the system. Mention the unit.

A final year project student, Raphael, learns in EEE307 that an oscillator circuit with a differential output can be built using single-ended tuned amplifiers like the one shown below: VDD C₁=R4₁ - Vout VinM₁ Fig. 3.1 Single-ended tuned amplifier schematic (image adapted from B. Razavi ©2012)

estion 9 The fault current level of a circuit breaker used in a transmission line with phase voltage 2.2 kV and breaking capacity 50 MVA is yet ......kA. vered -ked out of Flag question estion 10 The voltage between lines in a transmission line is the maximum value of the sine waveform. yet vered Select one: -ked out of O True Flag question O False

can you please further explain the peak power delivered to r2 portion. thank you

The value of symmetrical short circuit current is ___________________ at time t=0. Zero Minimum Unity Maximum

2. EXLAIN RUSSIAN CURRENTS IN DETAIL. WRITE ABOUT BASIC PRINCIPLES OF INTERFERENTIAL THERAPY.

Please answer this question about FET Configuration

Redo it again with full details..

The value of critical clearing angle can be directly determined by using step by step method.Select one:True fals

The inductance effect is predominant in underground cables than overhead lines. Select one: True False

2. When a large shunt capacitor is suddenly connected in parallel with the load bus in the distribution feeder, what would happen to this bus current? O A. Increase B. Decrease D. None of Above

"As per the standards used in power system, even harmonics are limited to 25 percent of the odd harmonic limits" True False

Flag question Time period of voltage waveform(household power supply) in Sultanate of Oman is ____________ sec. 0.05 0.02 0.04 0.01

Mention Factors determining the size and the direction of the generated emf

How would the power delivered to the LED in the circuit below be affected if the below were adjusted? Make sure to submit your answer in words. a) Frequencyb) Amplitudec) DC Offsetd) Time per Division

Developments that could happen in power flushing in the future

Hello. I am getting mixed up results. Could you help me through this problem?  Thank you for your time.