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Assume that the motor in question 2 has a design code B. What standard size inverse time circuit breaker should be used to connect the motor?
question 2
An electrician is given a NEMA size 2 starter to connect a 30 hp, three-phase squirrel cage motor to a 575 volt line. Should this starter be used to operate this motor?
Design a proportional-integral (PI) controller (recommend to use matlab siso toolbox) so that phase margin of the loop transfer function should be over 35o, and the crossover frequency is no larger than 10kHz. Provide the close loop bode plot (with..
Assume the z0 is in the far field and derive an expression for the strength to return as a function of angle. Make approximations where appropriate and do not forget the sidelobes.
for the circuit where Vr=30 Ohms, L=20 mH, C=39uF, and e=squareroot of 2(20)sin(1000t+40 degrees) a. Determine I, Vr, and Vc in phasor form b. Calculate the total power factor and indicate whether it is leading or lagging
using a slotted line the following results were obtained distance of first minimum from the load 4 cm distance of
A car travels at 30 km/hour. The diameter of the tire is 50 cm. Giving consideration to the Nyquist frequency how many shots of the tire must be taken to correctly capture the motion of the wheels
A block error detecting code has a minimum distance of three. How many errors can this code detect and how many can it correct
Find the mmf (NI) required to establish a flux = 80,000 lines in the magnetic circuit of given figure. - Find the permeability of each material.
Consider a 500-gallon tank that needs to be filled when the level goes below 25 gallons and will stop when the level goes above 475 gallonsControl systems can be either open-loop or closed-loop
what device is used to extend the range of the DCvoltmeter and how is it connected to the basicmeter and what device is used to extend the range ofthe DC ammeter and how is it connected to thebasic meter
ssume that the voltage across each capacitor and the current through each inductor have reached their final values - Find the voltages V1 and V2 and the current I1 for the circuit of given figure.
The outer surface temperatures of the brick and insulation are 1260 degreeR and 560 degreeR, respectively , and there is perfect contact at the interface between the two layers. Determine at steady state the instantaneous rate of heat transfer
The campus bus uses an embedded system that tracks the number of passengers getting in and those getting out of the bus. Two circuits with laser photodiodes, connected to RB0 (getting in) and RB1 (getting out), are used to track these numbers.
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