A three-phase, 11.2-kW, 1750-rpm, 460-V, 60-Hz, four-pole, Y-connected induction motor has the following parameters: Rs = 0.53 Ω, R’r = 0.38 Ω, Xs = 1.23 Ω, X’r = 1.45 Ω, and Xm = 25.2 Ω. The motor is controlled by varying both the voltage and frequency. The volts/hertz ratio, which corresponds to the rated voltage and rated frequency, is maintained constant.

a) Calculate the maximum torque, Tm and the corresponding speed, ꞷm for 60 Hz and 30 Hz.

b) Repeat (a) when Rs is negligible.

c) Draw a graph of torque–speed characteristics with volts/hertz control with the range of β between 0.4 and 1.

MULTISIM
1. With the knowledge you’ve gained in basic electronics, design and simulate a
circuit that comprises of a transformer, diode, capacitor, voltage regulator, zener
diode, transistors and any other vital components needed to make the circuit work. A. Explain how the circuit you’ve built works
B. Describe the function of each of the components in the circuit. 2. As a electronic engineer, design a circuit where the transistor as a switch and
another where the transistor is for amplification.

In MATLAB; 3- Plot a 8V-2KHZ Sine signal in MATLAB. While this signal varies between C = 10uF-100uF in 1uF steps for your application to the serialRLC circuit, calculate the L values ​​for R = 50 Ohm (constant) that can pass the maximum current through the circuit and write to the file. Plot the change graph of the L value calculated according to each C value.

what are the steps involved in hooking up an electrical system from beginning to end of job. just an outline would be great...also permits involved. in canada

I mean hooking up lights and outlets how many per room etc

Discuss the transmission and reflection of electromagnetic wave from a lossless medium to a lossy medium, normal incidence.

Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 420+300i Ω/ϕ ; load 2 is Δ-connected with an impedance of 2400-1780i Ω/ϕ ; and load 3 is 170.1+2201i kVA . The loads are fed from a distribution line with an impedance of 2+17i Ω/ϕ . The magnitude of the line-to-neutral voltage at the load end of the line is 23√3 kV.

Part A: Calculate the total complex power at the sending end of the line.

Part B: What percentage of average power at the sending end of the line is delivered to the loads.

Hello, i Have an OPAMP of 66dB ,how using negative feedback we can reduce the closed loop gain to 16dB

Thanks

1. Design and simulate a first order low pass filter so that it has a cutoff frequency of 2 kHz and a passband gain of 1.
2. please use online multisim

Explain in detail how Zener diodes can be used as a protection circuit for the instrumentation used in a biopotential measurement.

Explain why the direction of the rotor field is reversed when two phases of power are connected upside down.

1. (10 pts) A mobile receiver communicates with the transmitter at an operating frequency of 550 MHz at a distance of 3 km. Calculate the path loss in the system.

2. (15 pts) Assume that two antennas are half-wave dipoles and each has a gain of 3 dB. If the transmitted power is 1 W and the two antennas are separated by a distance of 10 km, what is the received power? Assume that the frequency is 100 MHz.

3. (10 pts) Show that doubling the transmission frequency or doubling the distance between transmitting antenna and receiving antenna reduces the received power by 6 dB.

Problem 2. Derive 1-D wave equation for Hy(z,t), and prove that Hy given in equation 9.32 in the textbook is a solution of the 1-D wave equation.