series generator having a combined armature and field resistance of 0.4 ohm us running at 1000 rpm and delivering 5.5 kW at a terminal voltage of 110 V. If the speed is raised to 1500 rpm and load adjusted to 10 kW, find the new terminal voltage. Assume the machine is working on straight line portion of magnetization characteristics

Q: Basics, Construction & Oper... A DC generator has armature emf of 200 V when it works on full…

A: Given- A DC generator- Armature emf = 200 V, Full flux/pole=40 mWb, Speed=500 rpm, Generated emf…

Q: An 6 pole, wave connected armature has 580 conductors and its generated e.m.f is 125 V. If the…

A: To solve above problem, one should know the EMF equation of DC generator, which is given by: E…

Q: The armature of a 14 pole DC shunt generator has 60 slots and is lap wound with 13 conductors per…

A: We will find out the armature current then generated emf and then from emf we will find out the flux…

Q: A 4 -pole generator has a lap-wound armature with 58 slots with 14 conductors per slot. The useful…

A: The solution is given below

Q: A 6 pole generator has a flux of 12 mWb per pole. The armature has a total of 900 conductors and is…

A: We have a generator with, Pole (P) = 6 Flux/pole Ф = 12 mWb                      = 0.012 Wb…

Q: A 4-pole generator has a lap-wound armature with 50 slots with 16 conductors per slot. The useful…

A:

Q: A DC generator has 4 pole, wave wound amature with 736 conductors. If the induced voltage in the…

A: According to the question we have to find the value of flux per pole.

Q: An eight-pole, 24 KW, 100 V, DC machine has a duplex LAP-wound armature which has 64 coils with 10…

A:

Q: A long shunt generator running at 1000 RPM supplies 20 kW at a terminal voltage of 220 V. The…

A:

Q: 12. If overcurrent protection is provided in the transformer of a separately derived system, which…

A: A separately derived system is defined as a premises wiring system in which there is no direct…

Q: Ih a d.c generator flux is directly proportional to L2 times field current.The generator is working…

A:

Q: 3.) A power supply circuit is shown below. For the diodes, assume Vy = 0.7V. Sketch the output…

A:

Q: A lap connected 6 pole DC generator has an armature conductors of 500 and is driven at 600 rpm. If…

A: The solution for the given DC generator is solved below and attached.

Q: Determine the power output of a DC armature having 1152 lap connected conductors carrying 150 A and…

A:

Q: Find the maximum efficiency of shunt generator has the armature resistance and shunt resistance 0.08…

A: Given Ra=0.08 Ω Rsh=120 Ω Wr=800 W VT=250 V

Q: - Indicate whether the following statement are true or false

A: in the DC machine the emf can be calculated using the following equation E =  ∅ZPN / 60 A

Q: A four-pole, lap-would DC machine has 462 conductors in the armature. The average flux per pole is…

A:

Q: A 6-pole, wave-connected armature has 831 conductors and is driven at 612 RPM. If the flux per pole…

A: We know direct formula for generated emf

Q: A 4-pole generator has a lap-wound armature with 60 slots with 15 conductors per slot. The useful…

A: Given, In a dc generator, Number of poles, P=4 Lap wound so number of parallel path, A=P=4. Slots is…

Q: A separately excited DC generator is used to pump the water to paddy field. The generator ratings…

A: Given data: Voltage  Vt=2Kv Rating 1500 kW N1=3500 rpm ω=2πN160    =2π×350060   =366.519 Armature…

Q: b) In a dc shunt generator, as the load increases the terminal voltage falls. Illustrate the reason…

A:

Q: A seperately excited DC generator has a no load voltage of 127 V, Ra= 0.02 ohm and Rsh=15 ohm. Find…

A: Given a separately excited DC generator has, No load voltage of 127 V Armature resistance, Ra= 0.02…

Q: 6 pole, wave connected armature has 520 conductors and its generated e.m.f is 125 V. If the machine…

A:

Q: An 6 pole, lap connected armature has 500 conductors and its generated e.m.f is 120 V. If the…

A: no. of pole P = 6 Lap connected winding, so no. of parallel path A=P=6  No. of conductor Z=500…

Q: A 10 -pole generator has a lap-wound armature with 56 slots with 14 conductors per slot. The useful…

A: In this question , we will find speed of dc generator with given data...

Q: A lap connected 6 pole DC generator has an armature conductors of 500 and is driven at 600 rpm. If…

A:

Q: A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V.…

A: Number of poles p = 8 RPM N = 1200 Flux ϕ = 25 m Wb = 0.025 mWb Voltage E = 440 V

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.