es and efficiency at half load

Q: n shown in Figure (4); Find the rms value.

A:

Q: at (1000 r.p.m) to reduce the speed to half

A: Series DC motor- A type of DC motor in which armature winding is connected or fabricated in series…

Q: What will be the value of the twiddle factor: W42

A: In this case, the value of the twiddle factor W42 is to be determined.

Q: Obtain the Clased Loop traaster fuachion Ris) by using Mason's larmula fy th splam belouws -H

A:

Q: What is the impedance

A:

Q: The area of the hysteresis loop is related to the amount of the energy dissipation. Select one: True…

A: The area of the hysteresis loop is related to the amount of the energy dissipation. Ans : True…

Q: Increasing the cross-sectional area of the core will decrease the self-inductance. True False

A: Considering the formula of self-inductance, L=μoN2Al Where L is self-inductance, μo is permeability,…

Q: From P = 12 x R, what is the likely effect to the power losses by varying the values of current?

A: The solution is given below

Q: In class A chopper with R-L load, the continuity of current increases as     duty cycle decreases…

A: Inductance has to be increased To increase the continuity of current the period of time should be…

Q: Define Attenuation and find the attenuation at the destination if the power at the destination is 10…

A: Attenuation : Attenuation is loss of signal strength in networking cables and connections.…

Q: Does the input power factor of convertors depend on the load power factor? why?

A: The explanation is as follows.

Q: In the power system given, on the line Reducing the active power loss by 60% to be placed at the end…

A: case 1load Active power P1=S cos ϕ=400*0.59=236 KWcos ϕ1=0.59ϕ1=53.842°case 2The active power loss…

Q: Give an example of a Waston bridge in the state of imbalance with the drawing and an example of a…

A: Unbalanced Wheatstone bridge The Wheatstone bridge is shown below:  For the bridge to be balanced,…

Q: 17   By laminating the core, the Hysteresis losses can be reduced. Select one: True False

A: Given that By laminating the core, the Hysteresis losses can be reduced

Q: $2. Choose one only 1. Compare between load curve and duration load curve.

A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again.

Q: Load duration curve Hours 0 500 2000 4500 6000 8760 Mw 50 Load 50 35 30 20 |15 there are two (2) -40…

A: Rating of each generator = 40 MW Energy = power X time Plant load factor = Actual energy generated…

Q: Q2. The single-line diagram of a simple three-bi is shown in Figure-2. Each generator is repres-…

A: the single line diagram of a simple three bus power system is shown. Each generator represent by an…

Q: The mutual inductance coupling coefficient standard unit is ... * Ohm Henery Unit-less Mho

A: The mutual inductance is M=k x sqrt L1 .L2 k is the coefficient of coupling k=M/ sqrt L1.L2

Q: Determine 71000  mod 6 and  61001 mod 7

A: Determine 71000 mod 6 and 61001 mod 7 ?

Q: the non-inductive resistance of kelvin double bridge are set at 1000 each, the standard resistance…

A: Kelvin double bridge it's used to measure low resistance.  Resistance R= 1000 ohm Standard…

Q: The mutual inductance coupling coefficient standard unit is ... * Mho Ohm Henery Unit-less

A: 1. In order to obtain a highly links between two windings the coupling coefficients will be equal to…

Q: 37. 29 Discuss the causes and consequences of harmonic distortion Enlict the Power quality issues…

A: Given  We need to elaborate the causes and consequences of harmonic distortion in power systems.…

Q: equivalent winding (a) resistance,(b) reactance and (c) impedance referred to the high voltage side.

A:

Q: A step-down chopper, with voltage source 20V. If the duty cycle is 50 frequency is 0.1Hz, Find…

A:

Q: equivalent

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Q: -p.m lap-wound dc series ge voltage 220 V and the pow

A: Q4 . Number of poles P=6       N = Speed of armature = 900 rpm      Z = number of conductors = 720…

Q: 6. In symmetrical components, if IRI = 100 30° and Iy2= 20 Z90° What is the value of Is ?

A:

Q: What is Kelvin's double bridge?

A: It is a measuring device used to estimate unknown electrical resistors below 1 ohm. It is designed…

Q: The generation of FSK? be done by use one ASK generators be done by use two ASK generators be done…

A: FSK (FREQUENCY SHIFT KEYING): Frequency Shift Keying is a technique for altering the frequency of a…

Q: calculate the Load current and Load voltage of the given figure

A:

Q: n fast decoupled method, the strong coupling between the following is used, a. Q and V b. P and Q…

A:

Q: Drive the The coupling coefficient k expiration and find it terms flux

A: Given :   The derivation of the above mentioned coefficient of coupling we have taken a magnetic…

Q: What is the primary difference between PAM and PWM.

A: In this question we will write PAM and PWM...

Q: The power factor must be close to . . To insure that losses in the transmission lines will be…

A: The power factor of the system is calculated as cosine of phase angle between voltage and current of…

Q: power factor has an efficiency of 90 % half-load and a full-load of 500 kW. Determine th efficiency…

A:

Q: -Calculate and draw the load current for the first two-period interval b-Calculate and draw the…

A: Rectifier: Because nearly every electrical appliance runs on DC (Direct Current), the rectifier…

Q: (a) State the types of turbine flow meters and point out the difference between them.

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q5/C: Compare between Auto transformers and 2 winding transformers.

A: The transformer is a static electrical device in which is used to step up/down the current and…

Q: In Chopper operation lo is negative, the direction of power flow will be from to

A: Ans. load to source

Q: The units of admittance, conductance, and susceptance are siemens. (a) True

A: Since, The admittance is the reciprocal of the impedance and it is denoted by Siemens(S). The…

Q: In DC machines external characteristics are plotted between * O vt vs la O vt vs load current O Eg…

A: In Dc machines external characteristics are plotted between terminal voltage Vt and load current IL.

Q: Voltages de and when operating at resistive load and inc ctive rms Repeat step (3) above, at (a…

A:

Q: 9/ A commutator is the main part of the stator to convert bidirectional current to unidirectional…

A: Need to find true false for given commutator statement

Q: non-sinusoidal quasi-square wave voltage v(t) is applied to a nonlinear load, resulting in a…

A:

Q: A single-phase, 60-Hz supply is connected to a load consisting of a 100 Ω resistor in parallel with…

A: Given :Value of resistance is 100 ohms          and value of capacitance is 50ufarad  find power…

Q: O Quantitative Problem

A: Permit cost per ton of CO2 produced = $ 40 Coal consumed per MWh of electricity = 0.5 tons CO2…

Q: Determine the values of K and k of the closed loop system shown in the figure below so that the…

A: First we will find out Transfer function then we will find out unknown .

Q: Question: In load commutation when the load current is kept constant, capacitor voltage gets charged…

A:

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.