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 1 MVA three-phase 6,600/400V delta/star connected transformer has the following parameters per phase.
HV side: R1 = 1.307 ohms X1 = 5.228 ohms
LV side: R2 = 0.0016 ohms X2 = 0.0064 ohms
(a) Calculate the per unit impedance of the transformer using base values of 1 MVA and 400 V. (and .)
(b) The transformer delivers 700 kVA at 0.85 power factor lagging to a three-phase balanced load at a line voltage of 400V.
Calculate the line voltage at the secondary terminals of the transformer if the load is disconnected from the transformer. Assume that the input voltage to the transformer remains unchanged. Neglect core loss and magnetizing current.
The project has been broken down into the following modules: Power supply, Processor and motherboard with RAM, I/O circuit board, CD-ROM drive, Floppy drive LCD display, Keypad, Enclosure and all mechanical parts, Final assembly.
A 50-kW 440-V 50-Hz two-pole induction motor has a slip of 6 percent when operating at full-load conditions. At full-load conditions, the friction and windage losses are 520 W, and the core losses are 500W. Find the shaft speed nm for full-load ..
The flow-rate of blood is assumed to be at high enough a rate that blood behaves as a Newtonian fluid. The fiber diameter is 600 microns and their length is 30 cm. You want a flow-rate of 12 ml/min for each fiber.
A 60 kVA, three-phase, wye-connected, 440 V, 60 Hz synchronous generator has a resistance of 0.15ohm and a synchronous reactance of 3.5ohm per phase. At rated load and unity power factor, calculate the percent voltage regulation.
a)Describe the difference between a relay logic system and a PLC control system. Are there any advantages of PLC control system over relay system. Explain the advantages in details with one example.
A voltage source V = 119
Use Matlab to verify the above results and determine: a. The starting torque b. The maximum torque c. The slip at which the motor develops maximum torque d. Draw the torque-speed characteristic of the motor
A new 1.5-V AA battery delivers 40 kJ of energy during its life time. How long will the battery last in an application that draws 10 mA continuously. Assume the battery voltage is constant.
What are Power Factor improvement Methods ? and what Their advantages & Disadvantages ?
What is the magnitude of the net force which acts on the object? What is the magnitude of the net force when the object encounters 23.4 N of air resistance?
1) A 5H inductor changes its current by 6 A in 0.4s. The voltage produced at the terminals of the inductor is 2) An RL circuit has R=2 ohms and L=4. The time needed for theinductor current to reach 40% of its steady state value is
Given the electric field E=4xux+2yuyV/m find the voltage between the points A(2,0) and B(0,2) integrating along: (a) straight line AB; (b) broken line AOB, where O(0,0).
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd