what is the relation between the reactive power changes and the voltage changes?

Explain sampling theorem and DTFT? provide an example.

calculate capacitance, inductance, resistance and conductance of two parallel wires transmission line

Q2.Find the equivalent circuit from no - load and short - circuit test of a 3 - phase. 14.92 kW, 400 V, 6 - pole induction motor from the following test results (line values): No - load: 400 - V, 11 A, p.f. = 0.2 Short - circuit: 100 - V, 25 A, p.f. = 0.4 Rotor Cu loss at standstill is half the total Cu loss.

Suggest a DC motor drive which can cause very fast heating of an automobile? Show circuit
diagram in case of series excited motor. (2). Propose an energy efficient braking control mechanism that
can be used for practical traction systems.(Hint: The supply is partly receptive)

In a three-phase circuit the balanced delta load of (36 +j54) ohms is fed by impedance conductors (5 +j70) ohms. If the generator voltage is 120 V angle 0° phase A, calculate a) the bc voltage on the load, b) the powers in the conductors, c) the bc voltage of the delta load and d) the power delta on the load.

Write about one page to compile a comparative analysis of STATCOMs and SVC’s for voltage control. Narrative shall address:

1. Range of compensation & size of individual components (limiting factors).
2. Dynamic performance (response speed).
3. Harmonic performance.
4. Price for similar compensation designs.

Direct reset MOD 12 synchronous down counter circuit
Designed using falling edge trigger SR FF
It is desirable. A, B, C, and D FFs in the circuit to be designed
It will be used. Here the highest-valued output is considered A
It will be. When this design is done, only SA and RA of A FF
after doing logic functions to be applied to their inputs
then write in the fields below. (Counter circuit design
write the steps in the empty space below. Without a solution
the responses will not be accepted. )

I need a report discussing AC machines ( Induction and Synchronus Machines)

Determine the cross correlation function between the two sets of data

x1(n)= {1.5, 2.0, 1.5, 2.0, 2.5}, and x2(n)= {0, 0.33, 0.67, 1.0} using:

1- Direct Cross-Correlation definition

2- Applying the Correlation Theorem and DFT

You are entering a letter ‘B’ from an input device to be displayed on a monitor via an 8-bit microcontroller. Describe the steps/processes of the 8-bit microcontroller needs to perform to display the output on the monitor.

When you created your Perimeter Design Project, if there had been a set budget of $10,000, how would it have affected your plan? What would you focus on, why? Research two real world examples where investing in perimeter security could have saved a company a lot of money.

What is excitation as applied to electrical machines?