The back emf of a dc motor Adds to the supply voltage O regulates its armature voltage helps in energy conversion O usually exceeds the supply voltage O ?In a dc machine 6 pole wave winding is used. The number of parallel paths are 6. 4 1 0

Q: In synchronous motor, the rotor speed O a. is similar to the speed of the stator field O b. has no…

A: As per our company guidelines we are supposed to answer only first question kindly repost other…

Q: In synchronous motor, the rotor speed 2. has no relationship to the stator filed it is only related…

A: In synchronous motor , rotor field is synchronised with the stator field. Both field is locked with…

Q: In the electodynometor, the magnetic field produced by the moving coil is proportional to the: power…

A: we need to choose correct option for the given statement.

Q: The speed of a d.c. motor is Inversely proportional to flux per pole Inversely proportional to the…

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Q: B- compare ( in 5 point only) between a dArsonval movement and Electrodynamometer. a dArsonval…

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Q: is required to reduce the error due to c O a. Permanent Magnet O b. Spring O C. Calibration O d.…

A: In instruments or electronic equipments, some errors will result due to offset and drift.

Q: and (c) are How many parallel paths are there in the armature windings of Prob. 1, if (a), (b),…

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Q: I revolution of a 6 pole synchronous machine is degrees electrical a. 720 O b. 1000 c. 3600 d. 1080

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Q: 1-1A current draws when a 40V DC voltage is applied to a Monophase AC motor.When 200V- 50HZ AC with…

A: Given,when, V=40 V, I = 1AWhen, V= 200V, I=4Af=50 Hz Power coefficient = 0.9

Q: The diameter of a loop is 25cm and its number of turns is 420. For what amount of current flow in…

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Q: What is a Synchronizing Lamp

A: For the parallel operation of the alternator, the correct phase sequence of the alternator can be…

Q: An RBM potential relay with the number 128-122- 2324K would have a continuous coil voltage of…

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Q: Q: The Schmitt Trigger circuit shown in figure (4) has he-20. Calculate VI (UTL) and V2 (LTL). Draw…

A: Schmitt trigger is an analog circuit. It helps in getting the output between two level of voltages.…

Q: Counter EMF of the DC motor is equal to the applied voltage None of these more than the applied…

A: For the DC motor, V=Eb+IaRawhere,V = Applied voltage,Eb = Back EMF or Counter EMFIa=Armature…

Q: Within A.C. Generators, explain the function of; Brushes and springs Field poles Field coils

A: Within A.C. Generators, explain the function of;   Brushes and springs Field poles Field coils

Q: If the output voltage across the transformer secondary coil is Vm AC volt. a- Give a circuit to…

A: We want the output as DC value. Hence a rectifier type circuit must be present. The input AC voltage…

Q: The field windings is kept on --in BLDC motor

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Q: DI 2:1 +100 V IN4001 V out Vin ov RL 10 kn -100 V D2 IN4001 ell

A: Part (a): It is given that the turn-ratio of the transformer is 2. Thus, the voltage at the output…

Q: Ripple counters are also called Synchronous counters VLSI counters SSI counterS O Asynchronous…

A: Ripple counter may be a special sort of Asynchronous counter during which the clock pulse ripples…

Q: 1 revolution of a 12 pole synchronous machine is electrical degrees wwwwwwww O a. 1800 O b. 1440 O…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: 1 revolution of a 6 pole synchronous machine is electrical degrees а. 720 b. 1000 c. 3600 d. 1080

A: For this problem we can easily found electrical degrees.

Q: In an On-Off AC Voltage controller, the ON time is 50 cycles and duty cycle is 0.25. The OFF time…

A: Let M be the number of on cycles and N be number of off cycles. Duty cycle=no.on cyclesno.on…

Q: In the electodynometor, the magnetic field produced by the moving coil is proportional to the:…

A: We need to select correct option for electrodynameter .

Q: In induction type energy meter is made up of Silicon Steel laminated assembly placed below the…

A: Solve as below

Q: A 1-o On-Off AC voltage controller has the supply voltages of 220 volts and rms output voltage is…

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Q: Q2: Consider the following control system K, (1+ To8) For K. = 2, tD = 1 and step change in load…

A: Solution - Given,Kc=2T0=1u(s)=1s

Q: Z) and single ended AC voltage gain ( A ).

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Q: A toothed-rotor sensor has 50 teeth. Find the pulses frequency if it rotates at 240 rpm. a. 0.25 Hz…

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Q: Induction motor at standstill condition has the motor speed (nm) and slip (s): Select one: Oa.…

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Q: A four pole 60 Hz wound rotor motor is to be used as a frequency converter. At what speed must the…

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Q: The brushes width in Wave winding is equal to a. 1.5 commutator segments. b. 1 of commutator…

A: brushed width in wave winding is equal to?

Q: The _________(i)____________ is a diactor and the saturable reactor or magnetic amplifier provide…

A: Integrating fluxmeter is a diactor and the saturable reactor or magnetic amplifier provide automatic…

Q: and 1- The compole is used to - 2- A 4-pole wave winding machine has ------- magnetic circuit. 3- A…

A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…

Q: turn off time is the time

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Q: A typical home-type ceiling fan motor draws ____ watts. This is approximately 0.4 to slightly over…

A: GENERALLY, CEILING FANS ARE HAVING INDUCTION TYPE OF MOTORS WHICH ARE DRAWING  CURRENT FOR THE BUILD…

Q: Q.8 A 220 V, 100 Kw separately excited d.c. generator has an induced e.m.f of 230 V at full load and…

A: Given values are - Vt=220VoltPo=100kWE=230VoltBrush contact dropVd=2Volt

Q: The number of electrical degrees passed through in one revolution of a six pole synchronous machine…

A: one revolution means 360 mechanical degrees. relationship between electrical and mechanical degree…

Q: The conversion of an AC to DC Source is by using the A) Commulator B) None of these C Round ring…

A: The commutator is used in the DC generator to convert the AC voltage into a DC voltage.

Q: In induction type energy meter is made up of Silicon Steel laminated assembly placed above the…

A: According to question:

Q: Clampers are used to delete some portion of a waveform Select one: O True O False

A: Clipper :-  The circuit which is used to limit the amplitude of an output is known as clipper…

Q: A 6 pole wave wound d.c. shunt generator has 500 conductors. A generator delivers 50 kW of power at…

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Q: 4. For the ripple counter in Figure 9–66, show the complete timing diagram for sixteen clock pulses.…

A: Question (4) Wave Form

Q: 4. For the ripple counter in Figure 9–66, show the complete timing diagram for sixteen clock pulses.…

A: Question (4)

Q: a" printed-circuit motor" is another term for a _________mo

A: Printed circuit motor is an advanced technology in machines

Q: The _____________________ is a diactor and the saturable reactor or magnetic amplifier provide…

A: AC voltage controllers (ac line voltage controllers) are employed to vary the RMS value of the…

Q: The supply frequency is 50 Hz. What will be the rotor voltage frequency if the motor speed is equal…

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Q: 4. The typical switching frequency of a brushless servo motor driver is A. 10 kHz. B. 5 kHz. C. 25…

A: Brush-Less Direct Current Motor is abbreviated as BLDC motor. This type of motor doesn't have any…

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.