The field system is the rotating part of the DC Generator Select one: True False
Q: By increasing the flux of main pole of a dc motor, the speed will be reduced true O False
A:
Q: The terminal voltage of a 150 kW series generator is 600 V at rated load. Determine the generated…
A:
Q: In a DC generator, if the core loss constant and the copper loss is increasing, then the efficiency…
A: The given statement is False. The explanation is provided below.
Q: A shunt generator is connected to a load that draws 692kW, Ra = 0.03Ω, Rsh = 60Ω. If the power…
A:
Q: 3-phase, Hz, delta connected generator, its stator winding having 12 slots per pole pair and 6…
A: Assume that number of poles is 4 . Given data Although it is known that formula of prime mover…
Q: 6.9 justify the following statement: if the interpole winding is left unexcited, commutation will be…
A: Ans. True
Q: ) Name the component in the generator which produces unidirectional current. i)Draw the experimental…
A: The shunt generator delivers 160A (IL) at a terminal voltage of 230V (Vt). The shunt field current…
Q: For a two finite machines, inertia constant combines like the impedance connected in series. Select…
A: For two finite machines, inertia constant (H)
Q: A DC generator with 8 pole, duplex lap winding excited with a flux of 3mWb/ pole. The number of…
A: Given: A DC generator with number of pole, P=8. Multiplexity of lap winding, m = 2 (duplex winding).…
Q: Critical resistance of a self-excited generator is closely related to the speed of the machine True…
A: Critical resistance is related to self excited generators. It is the maximum resistance. At this…
Q: A.C generator.
A: AC Generator AC generator is a device that converts mechanical energy given as input to the shaft…
Q: An 8 pole D.C. A generator delivers a current of 150 A at 400 V. It has 1280 armature conductors…
A:
Q: Ex. 3) a 3-phase, 50Hz generator running at 1500 rpm, the stator inside diameter is (0.5m) and its…
A: It is given that: F=50 Hzn=1500 rpmD=0.5 mL=1.2mBm=0.62T
Q: scuss the importance, advantages and disadvantages of generator.
A: The explanation is as follows.
Q: The dc shunt generator given its rated voltage when the field resistance is higher than critical. O…
A: We know that the critical field resistance is the highest allowable shunt field winding resistance…
Q: ) A d.c. shunt generator has shunt field winding resistance of 100 n. It is supplying a load of 5 KW…
A: In this question we will find induced emf of generator...
Q: A 420 V, four-pole, 25 kW DC generator has a wave-connected armature winding with 846 conductors.…
A: Given Data V = 420 V Z = 846 conductor A = 2 P = 4 B = 0.5 wb lg = 0.004 m
Q: The series field winding of DC Machine has many turns of thick wire Select one: True False
A: The shunt field winding has high resistance(R is high) and series field winding has low resistance(R…
Q: 2. Connect the field windings and brushes below to form a separately excited DC generator. Show also…
A: A self-excited DC shunt motor, also known as a shunt wound DC motor, is a form of self-excited DC…
Q: Draw the circuit diagram of self excited DC compound short shunt generator, mark all current and…
A: Self excited machines are the ones whose field magnets are excited by the currents supplied by…
Q: Q14. A synchronous generator is operating in symmetry condition. Will an e.m.f. be induced in the…
A: As the flux that links with the conductor definitely changes with the time, thus there is an induced…
Q: When the field current (If) is increased towards its rated value in the DC shunt generator, the…
A: Given, DC shunt generator, If, field current is increased
Q: A flat-compound DC generator is used when an essentially unvarying voltage is required True False
A: In this question we will write about flat compound generator...
Q: The field current of an DC machine is supplied from an external DC source is called as, shoos…
A:
Q: A 230V DC generator voltage is increased above the rated voltage when the field current increases…
A: In this question ,we will write about effect of field current on generator voltage ...
Q: Torque developed by electrical motor acts in the opposite direction with direction of rotation of…
A:
Q: The number of parallel paths and the number of series conductors required for a given kW rating of…
A: In this question , we will write about the number of parallel paths in dc machine depends hoon which…
Q: 2/ Explain the internal and external characteristics of de generator (draw each case).
A:
Q: The aluminum disc of an energy meter will be located on top of Shunt magnet Select one: True False
A:
Q: Determine the voltage regulation of a 2,000-V, 1-phase alternator giving a current of 100 A at 0.8…
A: For a 1-phase alternator,The full load voltage, VFL = 2000VCurrent, I=100APower factor,…
Q: At rest condition, the slip of induction motor is 1. Select one: True False
A: Solution : Slip of induction motor is 2 to 3% when the motor is operated under the rated load.
Q: The field current of an DC machine is supplied from an external DC source is called as, Separately…
A:
Q: a four pole dc generator has an armature winding containing a total of 648 conductors connected in 3…
A: Concept: 1 maxwell= 10-8 weber Eg=P∅NZ60A V P: number of polesN: speed in rpm∅: flux per pole in…
Q: The DC voltage is generated in the Field winding of DC Generator. Select one: True False
A:
Q: The open-circuit characteristic of a DC generator is also called as characteristics. O internal O…
A: The open characteristic equation of a dc generator is between no load emf and field current is…
Q: A Short shunt compound generator delivers a load current of 47 A at 244 V, and has the armature,…
A: Find the generated voltage of the short compound generator. Short shunt compound generator, shunt…
Q: Rotor of a Synchronous Generator is laminated in order to reduce power loss by eddy currents. Select…
A: The eddy current loss is the type of power loss that causes, the circulating current in the rotor…
Q: Triaxial has a single core and two shields like a twin-axial coaxial cable. Select one: O True False
A: Triaxial cable, often referred to as triax for short, is a type of electrical cable similar to…
Q: Write down the Voltage equation of a Separately excited DC Generator
A: In this question we need to Write down the Voltage equation of a Separately excited DC Generator
Q: In a DC machine, provides the magnetic path as well as the mechanical support to the whole machines.…
A: In a DC machine Yoke provides the magnetic path as well as the mechanical support to the whole…
Q: The field winding of a 4-pole dc generator consists of 4 coils connected in series, each coil being…
A: We have an DC generator having, Poles (P) = 4 Number Coil = 4 Each coil turns = 1200 Initial…
Q: In a DC machine, the reversal of current from one direction to opposite direction is done by O…
A: Choose the correct option In DC machine, the reversal of current from one direction to opposite…
Q: Critical resistance of a self-excited generator is closely related to the speed of the machine True…
A: True Critical resistance is related to speed.
Q: Q.3/state the rotating parts of DC generator.
A: There are two rotating parts of a DC Generator namely : (1)Armature Winding. (2)Rotor Core.…
Q: With aid of diagram, derive and proof that the internal generated voltage of a synchronous generator…
A: Synchronous generator- A machine which works on the principle of electromagnetic induction and gives…
Q: Q1\ A short compound d.c. generator supplies a current of 75 A at a voltage of 225 V. Calculate the…
A: In this question, short shunt compound generator is given..We have to find out generated voltage..
Q: Mention factors causing a permanent magnet generator not to generate emf
A: The reasons causing a permanent magnet generator not to generate emf are as follows:
Q: With the aid of suitable, neat diagrams describe three methods of starting three-phase induction…
A:
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- (a) Show the voltage waveforms across each half of the secondary winding and across RL when a 100 V peak sine wave is applied to the primary winding in Figure. (b) what is Vavg and fout if fin = 50 Hz?A single phase full converter feeds power to RLE load with R=10 ohm, L=10 mH and E=50 V, the ac source voltage is 230 V, 50 Hz. For continuous conduction, what is the average value of load current for firing angle delay of 600 ?Which of the following sensors has a permanent magnet inside? Hall effect sensor thru-beam optical sensor piezo-electric sensor LVDT capacitive proximity sensor |o|0|0|6
- What is use of solenoid coil in the pressure to converter? a. To produce magnetic field in the LVDT b. To change the LVDT output c. To bring back the pivoted beam normal position d. To produce linear displacement in bellowsFor a full-wave phase control circuit draw the output voltage and current waveforms when firing angle α = 38°. Consider the load to be inductive.A single phase full wave AC voltage controller has a resistive load of 5 ohms and an input voltage of Vs = 240 V (RMS), 50 Hz. The delay angles of both thyristors are set to 45 degrees. The maximum RMS and average current ratings of the thyristor are equal to: Select one: O a. 33.94A and 21.6A O b. None of these O c. 24A and 10.8A O d. 48A and 26.09A Clear my choice
- Please answer this,I want a detailed explanation. An a.c. supply drives a half-controlled thyristor bridge with a resistive load. Sketch the circuit diagram, and the voltage and current waveforms.4 Listed are some of the uses of capacitors except: A. couples AC B. bypassing a shunt load C. signal amplification D. filters pulsating DCWhy we use buck converter instead of using linear regulator?