The Hellmann formula describes? (a) solar irradiance depending on the thickness of the cloud cover. (b) the failure rate of power transmission lines depending on their length. (c) wind speed depending on height above ground. (d) the peak-to-average rate of load in a distribution feeder depending on average load.

Q: Sketch, using single line diagram, a typical transmission and distribution system with the…

A: We have given sketch using single line diagram a typical transmission and distribution system with…

Q: What is The effect of increasing VS in power transmission line performance study?

A: Let a power transmission system, where Vs is sending end voltage Vr is receiving end voltage I is…

Q: Q/What is the effect of the length of the transmission line on the  Phasor measurement unit (PMU)…

A: - A phasor measurement unit (PMU) is a gadget used to gauge the greatness and stage point of an…

Q: Give one advantage and disadvantage of the radial type distribution system.

A: In radial type distribution system, the supply is given from one end that is from one source or…

Q: ) Differentiate between the power sector regulation and deregulation, and give examples

A: Differentiate between the power sector regulation and deregulation are as, Regulation: The act of…

Q: The power system network is shown in Figure 3. The magnitude of voltage at bus 1 is adjusted to 12…

A: First, we will determine the admittance matrix by giving all impedances, y=1zSo, we will…

Q: What are the causes of voltage drop and line losses in a transmission line?

A: Line voltage drop occurs due to two main reason given as: (1) voltage drop in line resistance (2)…

Q: What is the need to conduct power flow analysis? Discuss about data needed and bus types too.

A:

Q: At the end of the 8 km overhead line given in the figure below, there are two distribution…

A: According to question: The currents 'I1' and 'I2' in the distribution transformers are calculated as

Q: What are the wind turbine losses? How to minimize these losses? What is the role of SCADA system in…

A: Wind turbine losses: There will be electrical losses practised between the low voltage terminals of…

Q: active and reactive power drawn by the mixer fed from a 230 Vrms, 50 Hz single phase AC network was…

A:

Q: Explain hybrid operation of wind farms

A: Hybrid operation of wind farms: Any combination of wind energy with another additional form of power…

Q: 3-A 400 kV, 50 Hz, 700 km long symmetrical line is operated at the rated voltage. a) Calculate the…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Draw the circuit diagram of Two quadrant chopper which is having average load current might be…

A:

Q: Draw the circuit diagram of Two quadrant chopper which is having average load current might be…

A: Sometimes a chopper may be required to provide a two quadrant operation by retaining the current…

Q: What is the necessary condition for matching transmission lines? In addition, what is a micro strip…

A: necessary condition for matching transmission line micro strip line

Q: the amount of real and reactive power that flow between any two buses is determine by the relative…

A:

Q: What is per unit system? Write the advantage of per unit system ?

A: The explanation is as follows.

Q: Subject: Electrical & Electronics Engineering Course: Power Systems Question: In case of modeling…

A: Modeling a Long Transmission Line, procedures :- Physical ACSR conductor is replaced with…

Q: a). What is the reason for providing sag in an Overhead transmission line? b). List any two…

A: Whenever there is a need to send electricity to far off long distances, then the usage of overhead…

Q: c) Elaborate the statement that a synchronous machine is 'floating' on the bus bars

A: In an infinite bus the alternators are connected in parallel.

Q: What are the considerations in choosing the appropriate transmission line?

A: While choosing the transmission line  1) it should have less voltage drops. 2) it should be suitable…

Q: a) If the load on a 50-ohm transmission line were a 25-ohm resistor, what would the VSWR be? b)…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: (a) Sketch the equivalent circuit and obtain the general equation for synchronous generator

A: Synchronous generator: It is an electromechanical device. This is called a synchronous generator…

Q: Discuss the method of forming YBUS by inspection, taking a simple example ofsystem with a 5-BUS and…

A: The method of forming Y-BUS by inspection: Consider the admittance network having 3 nodes as shown…

Q: What are steady state error and static error constant? give example What is the relationships…

A:

Q: State the secondary transmission line constants and talk briefly about them.

A: According to the question we have to State the secondary transmission line constants and talk…

Q: 1- construct a block diagram representation of a typical bulk power generation- transmission…

A:

Q: Identify the ideal place for Wind turbine plant in terms of site selection criteria?

A: Ideal place for Wind turbine plant is given as: The best location is coastal areas.  Tops of the…

Q: Discuss in detail the construction of a Directional Coupler

A: A directional coupler is used for the measurement purposes for the less amount of microwave power.…

Q: What is the phasor diagram of the voltages at bus one and two, in per unit, of the attached image?

A: A diagram of a two bas bur power system is shown in the question. We need to draw the phasor diagram…

Q: Draw the basic block diagram of AC – DC transmission system.

A: In this we will write about AC – DC transmission system....

Q: 3. What are the causes of voltage drop and line losses in a transmission line?

A: Line voltage drop occurs due to  Voltage drop in line resistance  Voltage drop in line inductive…

Q: Selection of feeder size is independent of the voltage drop and power loss True False

A: The given Statment Selection of feeder size is independent of the voltage drop and power loss.  Is…

Q: 2. The transient reactance in a synchronous machine is defined as the ratio of no-load voltage to…

A: The solution is given below.

Q: Illustrate the salient effect of a sudden symmetrical short circuit across the terminals of a…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Explain load flow analysis of radial distribution system using fuzzy logic with neat diagram

A:

Q: A) With a neat sketch discuss the working of a stand alone system for power generation and explain…

A: A stand-alone power system is a system that is not connected to the grid power and depends only on…

Q: Q3: A synchronous generator with peak generated voltage Vg which is connected to a lighting arrester…

A: 1) Peak value of the generated voltage of the synchronous generator= Vg RMS value of the generated…

Q: i. What are equipments used for dynamic voltage regulation in PST2200 Simulator. i. Why voltage…

A: i) Maintaining the quality of electrical power supply is of utmost importance in power system. And…

Q: Birds are known to perch on 2300V bare transmission line without apparent harm. Explain the reason…

A: The electricity to flow through ,it needs the  closed loop and a voltage difference across the…

Q: Derive emf equation of the synchronous generator.

A:

Q: 5/The phase angle between magnetizing component current and core loss component current is 180o…

A: The phase angle between magnetizing component current and core loss component current is 900.

Q: can you discuss how and why distribution feeders are operated radially?

A: Radial distribution system is used in electrical power systems to provide electrical power supply to…

Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).