Question

A 54-slot stator of a synchronous generator is wound for three-phase, 50-Hz, 6-pole applications. Determine (a)...

A 54-slot stator of a synchronous generator is wound for three-phase, 50-Hz, 6-pole applications. Determine (a) the number of coils in a phase group, (b) the slots per pole, (c) the slot span,(d) the coil span, and (e) the speed at which the rotor must be rotated.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The no-load (line) voltage of a 6-pole, 72-slot, 1200-rpm, three-phase, Y-connected, synchronous generator is 1732 V....
The no-load (line) voltage of a 6-pole, 72-slot, 1200-rpm, three-phase, Y-connected, synchronous generator is 1732 V. There are 10 conductors per slot. For a series connection, determine (a) the frequency of the induced emf and (b) the flux per pole.
An alternator with 90 stator slots has a three phase, 6 pole whole-coiled winding. Coil span...
An alternator with 90 stator slots has a three phase, 6 pole whole-coiled winding. Coil span is 15 slots. Calculate: (a) the pitch factor and, (b) the distribution factor. Ans. 0.978, 0.956
3) A three-phase, nozzle, 4-pole cylindrical pole synchronous generator feeds a 400 Volt, 50Hz conversion center....
3) A three-phase, nozzle, 4-pole cylindrical pole synchronous generator feeds a 400 Volt, 50Hz conversion center. The synchronous reactance of the synchronous generator is 0.72 Ove armature resistance is neglected. The relation between the pole voltage E 'induced in the induction of the synchronous generator and the excitation current, is selected as E, = 824. In this working environment of the synchronous generator, a.) On the consumer screen, find the excitation current (U), load values, internal phase values, the moment...
A three-phase 55 Hz, 500 MVAR, 11.8-kV, 6 pole steam turbine generating unit has an H...
A three-phase 55 Hz, 500 MVAR, 11.8-kV, 6 pole steam turbine generating unit has an H constant of 5 p.u. Determine a) synchronous mechanical and electrical angular frequencies, b) Consider the damping is ignored and the initial rotor angular position is 30 degrees. Find the electrical and mechanical rotor angular position in radians after three cycles if the mechanical power is 1 p.u. and the generator rotates at synchronous speed. C) The unit is operating at Pm=1 and the synchronous...
Determine the kinetic energy stored by a 300 MVA, 60 Hz, two pole synchronous generator with...
Determine the kinetic energy stored by a 300 MVA, 60 Hz, two pole synchronous generator with an inertia constant H of 5.66 MJ/MVA. Assume the machine is running steadily at synchronous speed with a shaft input of 366000 hp. The electrical power developed suddenly changes from its normal value to a value of 200 MW. a. Determine the acceleration or deceleration of the rotor. b. If the acceleration computed for the generator is constant for a period of 10 cycles,...
A synchronous generator 480-V, 50-Hz, Y-connected, six-pole has a power rating of 50 kVA at pf...
A synchronous generator 480-V, 50-Hz, Y-connected, six-pole has a power rating of 50 kVA at pf 0.8 lagging. The synchronous Reactance Generator is 1.0 Ω per-phase. This Generator is connected to the 45 kW steam turbine. The friction loss and the core generators are respectively 1.5 kW and 1.0 kW. Question : Draw a Capability curves!
The parameters of a 3-phase, 4-pole, 50 Hz, Y-connected, wound-rotor induction motor are listed below. These...
The parameters of a 3-phase, 4-pole, 50 Hz, Y-connected, wound-rotor induction motor are listed below. These are the default values of the "Asynchronous Machine" model in MATLAB Simulink. r1=0.5968 Ω; r2=0.6258 Ω; L1=0.0003495 H; L2=0.005473 H; Lm=0.0354 H; Stator line voltage = 400 V rms. The motor for rotor speeds nm= 0 to 1500 rpm. X1= 0.1097 ohm, X2= 1.719 ohm , Xm= 11.12 ohm, RTH = 0.5853 , XTH = 0.1395 and VTH = 230.82 V. Suppose the motor...
A 3-phase, 1.2 MVA, Y-connected, 6.6 KV, 6-poles, 60 HZ, synchronous generator has a synchronous reactance...
A 3-phase, 1.2 MVA, Y-connected, 6.6 KV, 6-poles, 60 HZ, synchronous generator has a synchronous reactance of 30W and negligible resistance. The generator is connected to an infinite bus at 6.6 KV and 60 Hz. a)Determine the excitation voltage (Ea) when the machine is delivering rated power at o.8 PF lagging. b)The field excitation current is increased by 10% without changing the power input from the prime mover. Find the stator current (Ia), the power factor and the reactive power...
2. A 6-pole and three-phase induction motor has synchronous speed of (1000+X) RPM. a) Find the...
2. A 6-pole and three-phase induction motor has synchronous speed of (1000+X) RPM. a) Find the no-load and full-load operating speed of motor for the cases given, 1. 2.5Hz electrical frequency of rotor for no-load condition. (15p) 2. 6.3Hz electrical frequency of rotor for full-load condition. (15p) b) Find the speed regulation of motor by using parameters found above. (10p) c) Determine the electrical frequency of rotor under full-load condition so that speed regulation would be equal to 5%? (Electrical...
The parameters of a 3-phase, 4-pole, 50 Hz, Y-connected, wound-rotor induction motor are listed below. These...
The parameters of a 3-phase, 4-pole, 50 Hz, Y-connected, wound-rotor induction motor are listed below. These are the default values of the “Asynchronous Machine” model in MATLAB Simulink. r1=0.5968 ?; r2=0.6258 ?; L1=0.0003495 H; L2=0.005473 H; Lm=0.0354 H; Stator line voltage = 400 V rms. The motor for rotor speeds nm= 0 to 1500 rpm. X1= 0.1097 ohm, X2= 1.719 ohm , Xm= 11.12 ohm, RTH = 0.5853 , XTH = 0.1395 and VTH = 230.82 V. Suppose the motor...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT