The DC shunt generator with the terminal voltage 300 V, armature drop 8 V and the each brush drop 4 v, then the value of generated emf is When the load on a series generator is decreased, then the flux produced will be decreased in direct proportion. Select one: O True O False

Q: uèstion 7 A shunt generator running at 1000 r.p.m. has generated e.m.f. as 300 V. If the speed…

A: In this question, choose the correct option What is emf at speed = 1200rpm

Q: An ideal dc generator has regulation of 40% O 20% 30% O Zero

A:

Q: A three-winding transformer is connected to an AC voltage source as shown in the figure. The number…

A: Given- 3 winding transformer, Number of turns- N1=100,N2=50,N3=50, Currents in secondary side- 2∠30o…

Q: C Machinery Fundamentals A three-phase delta-connected six-pole winding is installed in 36 slots on…

A: Given that ns=1000 rpmϕ=0.060WbP=6Nc=150slots=36 Although the frequency of induced  voltage  is…

Q: A dc 4 pole lap wound generator is running at 10o00 rpm having 1200 conductors and flux density is…

A: Given  Pole P=4 lap A= P=4 N=1000 rpm Z=1200  φ= 10mwb

Q: Iron losses in a DC machine are independent of variations in

A: The explanation is as follows.

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: A 6 pole DC wave wound generator has 21 armature conductors with flux per pole is 29 mWb and the…

A: emf indued E = Flux×speed×no.of conductors60×no. of polesno. of parallel paths Given Flux=29 m Wb…

Q: If we need to use a DC generator witha very good voltage regulation we choose: * DC Generators…

A:

Q: 3. A group of electromagnets that create flux in a d-c generator (the field circuit) has an…

A:

Q: Q- In a DC generator, what will be change in emf induced if flux is reduced by 20% and the speed is…

A: Given -  Flux reduced by - 20%, Speed increased by - 20%,   To find -  Change in EMF.

Q: The generated emf

A:

Q: A dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10…

A: Given that  A dc Lap wound generator having total conductor Z = 1200   speed or number of revolution…

Q: A magnetic ring has reluctance of 1.675 x 106 AT weber. The flux to be produced by the coil is 800 x…

A: Given a magnetic ring has, Reluctance = 1.675×106 ATweber Flux = 800×10-6 weber.

Q: four pole machines generates 250V when operated at 1500 rpm. If the flux per pole is 1.85 x 106…

A:

Q: A 220V series generator has an armature resistance of 0.04Ω. If the generated emf is 230V and the…

A:

Q: A 4-pole DC generator runs at 650 rpm and generates an EMF of 200 V. The armature is wave wound and…

A: Given a DC generator with, Rated emf, E = 200 V Total number of pole, P = 4 Speed, N = 650 rpm Wave…

Q: 1. If the number of poles in a lap wound generator is doubled, then the generated emf will be a)…

A: Given: Number of poles in lap wound generator are doubled.

Q: A 6 pole DC wave wound generator has 22 armature conductors with flux per pole is 22 mWb and the…

A:

Q: The reluctance is -proportional to flux

A:

Q: A 4 pole dc generator with duplex wave winding has 48 slots and four elements per slot. The flux per…

A:

Q: A 6 pole DC lap wound generator has 41 armature conductors with flux per pole is 23 mWb and the…

A:

Q: A 6 pole DC wave wound generator has 28 armature conductors with flux per pole is 23 mWb and the…

A: Given that A poles P = 6  DC wave wound generator Parallel paths A= 2 Conductors z=  28  flux per…

Q: A 6 pole DC wave wound generator has 22 armature conductors with flux per pole is 24 mWb and the…

A:

Q: A four pole, 1200 rpm DC lap wound generator has 1520 conductors. If the flux per poles is 0.01 Wb.…

A: Given: DC lap wound generator having P=4N=1200Z=1520ϕ=0.01 Wb

Q: A 6 pole DC wave wound generator has 41 armature conductors with flux per pole is 26 mWb and the…

A: Find the speed of the dc machine if the all parameters are given.

Q: A 6 pole DC wave wound generator has 30 armature conductors with flux per pole is 25 mWb and the…

A:

Q: A 6 pole DC lap wound generator has 38 armature conductors with flux per pole is 42 mWb and the…

A: Generated voltage = flux×speed× No. of conductors×No. of polesNo. of parallel paths. For Lap…

Q: What are the rotating parts on d.c machine. commutator segments O brushes O inter-pole O pole shoe

A: In dc machine from the above option only commutator segments is moving. so option A is correct.

Q: A 6 pole DC wave wound generator has 39 armature conductors with flux per pole is 4.2 mWb and the…

A: Given data, P=6A=2 (wave wound)Z=39ϕ=4.2 mWbE=2.6 V

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.