Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A 3-phase, 15-kV, 4-pole, cylindrical rotor synchronous generator is connected to a 50-Hz infinite bus. The synchronous reactance of the machine is Xs = 0.6 ohms per phase and the excitation voltage is set to E0 = 12 kV line-to-neutral.
a) Draw single-phase equivalent circuit representing the machine connected to infinite bus.
b) Consider the machine running as a synchronous condenser.
(i) What is the amount of active power generated by the machine?
(ii) Calculate the amount of current injected by the machine to the infinite bus.
(iii) Calculate the amount of reactive power generated by the machine.
Now, the excitation voltage has been reduced to 8.66 kV and the steam turbine supplies mechanical torque on the shaft such that the torque angle of the machine is equal to +30°.
c) Draw phasor diagram for this operating conditions showing clearly the bus voltage, the excitation voltage and the stator current.
d) Calculate the machine power factor.
Evaluate the power output of turbine: Q: A turbine in steam power plant operating under steady state conditions receives the superheated steam at 3MPa and 350ºC at the rate o
Calculation of Material Removal Rate MRR = (W i - W f ) × 1000/ 7.8 × T .......................................... (1) W i = Initial weight of work piece W f = Final w
Plastic material and rigid plastic material: For the plastic material, there is stress at which plastic deformation begins. A rigid plastic material is one in which the ela
Construction of Lacashire boiler: CONSTRUCTION : Consists of boiler shell which contains water and steam. Diameter can vary from 1.75 to 2.75 m and length can be 7.25 - 9 m
Valve Clearance and Tappet Adjustment: Like all metal components the valve expands on heating. Hence the valve clearance is set so that on expansion there is room for the valve to
Q. Define the Moving boat method? Moving boat method has been more recently evolved and tested in the U.S.A. and holds promise in measurement of discharge of big rivers and tid
how forces are balanced for a 3 cylinder engine ?
Calculate values of KI - thick cylinder: If cracks of 6 mm and 12 mm length are separately present only one side of inner surface in radial direction find two values of KI.
The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is reheated to 535
Ask question #Minimum 50 words accepted#
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd