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Assume we have an N-bus power system and we know the N x N zero-sequence, positive-sequence, and negative sequence matrices for the system. Write a MATLAB program to find the system bus voltages during a:(a) 3-phase balanced short circuit fault at an arbitrary bus ?(b) One-line-to-ground short circuit fault at an arbitrary bus ?(c) Line-to-line short circuit faults at an arbitrary bus ? and(d) Line-to-line-to-ground short circuit faults at an arbitrary bus ?
by finding the relevant air analysis, determine the partial pressure of nitrogen in the athmosphere at 1.00bar.f a sample of air at this pressure and 10°C was put nto a rigid container and then itd temperature raised to 91°C, what would be the pre..
Control Systems- PID Controller, Which one of the following statements regarding the operation of a PID controller is definately false?
Complex Voltage = 10-j20. try to convert it to polar coordinate with my Ti 89 but I keep getting my answers in arc tan.
What is the maximum symbol rate that the twisted pair line can carry without ISI? 256-QAM modulation is used on the link. How many bits are conveyed by each symbol?
A three-phase steam-turbine synchronous generator is connected to an infinite bus. The generator excitation current is IF=1000 A at the time of synchronization with the bus. The generator has a synchronous reactance of Xs =1.5 per unit.
draw out a schematic that implements a 3-bit XOR gate, but consisting of only 2-bit NAND gates. Your schematic should have from 8-10 NAND gates, but NO other logic function such as OR, AND, INV gates can be in your final design.
Power factor improvement, An industrial user has a number of machine tools which are driven by three phase induction motors. during a particular shift, the power factor of the combined load can vary between 0.65(100 KVA load) and 0.81 (20 KVA) loa..
A 1.0 dc voltage source is connected across a 10 ohm resistor. What is the current through the resistor if (a) the voltage source is ideal (b) the voltage source has internal resistance 0.1 ohm (c) internal resistance 1.0 ohm
i) Calculate the number of calls/hour/cell and the number of calls/hours/km2 ii) Calculate the number of users/hour/cell and the number of users/hours/channel iii) Find the modulation frequency for this system.
Transmit this data wirelessly to a base station for storage. How much bandwidth would you need.
A 240kW 500V 1750 r/min separately excited dc generator has an overall efiiciency of 94%. The shunt field resistance is 60 ohms and the rated current is 5A. The I^2 R loss in the armature is 0.023 pu.
How are the left (L) and right (R) signals obtained separately in the radio receiver to drive the dual channel audio amplifier and speakers?
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