Question

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!

Engineering   Electrical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1


Plz hit the like symbole........

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A three-phase, 9,375 kVA, 13.8 kV, 4-pole, 60 Hz, Y-connected synchronous generator has a synchronous reactance,...
A three-phase, 9,375 kVA, 13.8 kV, 4-pole, 60 Hz, Y-connected synchronous generator has a synchronous reactance, Xs = 17.9, and is connected to an infinite bus at rated voltage. If the rotational and electrical losses are negligivle, what is Ia, Ef, delta, theta, Tdrive, Phasor diagram, and power flow diagram (label completely with numerical values for, A) the machine as a generator; the prime-throttle is opened and If is adjusted so that the machine delivers rated kVA, 0.8 pf lagging,...
The 400 V, 50 kVA, 0.8 power factor leading delta connected synchronous motor has synchronous reactance...
The 400 V, 50 kVA, 0.8 power factor leading delta connected synchronous motor has synchronous reactance of 3-ohm, resistance neglected. It is supplying a 12-kW load with initial power factor of 0.86 lagging. The windage and friction losses are 2.0 kW and the core losses are 1.5 kW. Determine (a) the motor efficiency; the line current; armature current; and excitation voltage. (b) If the flux of the motor is increased by 20 percent determine the excitation voltage; armature current; and...
A submarine has a 3-phase, Y-connected, 2- pole, 60Hz synchronous generator rated to deliver 1687.5 kVA...
A submarine has a 3-phase, Y-connected, 2- pole, 60Hz synchronous generator rated to deliver 1687.5 kVA at a FP = 0.8 lagging with a line voltage of 450-V. The machine stator resistance RS = 0.004 ?. The synchronous reactance is Xs=0.08 ?. The actual system load on the machine draws 900 kW at FP = 0.6 lagging. Assume that a voltage regulator has automatically adjusted the field current so that the terminal voltage is its rated value. Mechanical losses are...
A 42 kVA three-phase synchronous generator with line voltage 4.16 kV at a frequency of 60...
A 42 kVA three-phase synchronous generator with line voltage 4.16 kV at a frequency of 60 Hz, is connected in star configuration. The generator has a winding whose armature resistance is 0.8 Ω and a synchronous reactance of 7.4 Ω, both per phase. Determine the voltage regulation when the power factor is 0.600 lagging.
A 50-Hz, two-pole, 825 kVA, 2300 V, three-phase synchronous machine has a synchronous reactance of 7.47...
A 50-Hz, two-pole, 825 kVA, 2300 V, three-phase synchronous machine has a synchronous reactance of 7.47 and achieves rated open-circuit terminal voltage at a field current of 147 A. c. For a constant load power of 700 kW, write a MATLAB script to plot the terminal current as a function of field current. For your plot, let the field current vary between a minimum value corresponding to a machine loading of 825 kVA, leading power factor, and a maximum value...
A 75-kW, 440-V, 0.8-PF-leading Y-connected synchronous generator has an armature resistance of 0.22 Ω and a...
A 75-kW, 440-V, 0.8-PF-leading Y-connected synchronous generator has an armature resistance of 0.22 Ω and a synchronous reactance of 3.0 Ω. Its efficiency at full load is 89% (1 Hp=746 watt). (a) What is the line current of the generator at rated conditions? (b) What is the internal generated voltage EA of this motor at rated conditions?
(360) Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole -connected synchronous motor has 0.9Ω synchronous reactance....
(360) Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole -connected synchronous motor has 0.9Ω synchronous reactance. Friction; wind; core losses and armature resistance are neglected. a) If the motor is operating under magnitude of phase current (ia) (180) Ampere and power factor of 0.6 lagging, 1. Find the input power of motor in hp 2. Find the generated voltage, EA 3. Find the torque and the maximum inducible torque in current state. b) If EA is increased by 18% find,...
410 Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole Triangle connected synchronous motor has 0.9Ω synchronous...
410 Volt, 60 Hz, 600 hp, 0.6 pf-leading, four-pole Triangle connected synchronous motor has 0.9Ω synchronous reactance. Friction; wind; core losses and armature resistance are neglected. a) If the motor is operating under magnitude of phase current (ia) 230 Ampere and power factor of 0.6 lagging, 1. Find the input power of motor in hp (10p) 2. Find the generated voltage, EA (10p) 3. Find the torque and the maximum inducible torque in current state. (10p) b) If EA is...
A three-phase Wye-connected synchronous generator is rated 3600 rpm, 200kVA, 480V, 60 Hz. The generator’s armature...
A three-phase Wye-connected synchronous generator is rated 3600 rpm, 200kVA, 480V, 60 Hz. The generator’s armature winding resistance is RA = 0.03Ω and the synchronous reactance XS is 0.25Ω. The rotational losses are 6kW, the core losses are 4kW, and the stray losses are 1% of the output real power. The generator is delivering 200kVA power at 0.85 pf lagging at rated voltage. Taking the phase voltage at the output as a reference, answer the following questions. How many poles...
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...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT