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Electrical Engineering
How can represent the power system and write the advantage of power system representation?
Electrical Engineering
Explain the structure of power system component with appropriate diagram and write the function of its component.
Electrical Engineering
A proportional controller is used to control the temperature in a tank,
which varies from 20 0C to 100 0C. The controller is required to close the valve
on steam supply when temperature rises to 80 0C and open the steam supply
when temperature drops to 20 0C. Set point is 60 0C.
[1]. Calculate proportional band and controller output when temperature in
the tank is 50 0C.
[2]. For the above process, design an electronic controller around a single
op-amp. Controller output is 0-5 V; voltage varies linearly from 1 V to 5 V
when temperature varies from 20 0C to 100 0C. Zero corresponds to 50 %
controller output.
[3]. Draw and label the closed loop with electronic controller.
which varies from 20 0C to 100 0C. The controller is required to close the valve
on steam supply when temperature rises to 80 0C and open the steam supply
when temperature drops to 20 0C. Set point is 60 0C.
[1]. Calculate proportional band and controller output when temperature in
the tank is 50 0C.
[2]. For the above process, design an electronic controller around a single
op-amp. Controller output is 0-5 V; voltage varies linearly from 1 V to 5 V
when temperature varies from 20 0C to 100 0C. Zero corresponds to 50 %
controller output.
[3]. Draw and label the closed loop with electronic controller.
Electrical Engineering
silicon diode has a saturation current of 10na at 300K . Calculate the forward current if the forward drop is 0.5v . If the diode is rated for a maximum current of 5A , what is it's junction temperature at rated current if the forward drop is 0.7v
Electrical Engineering
With the aid of diagrams and sketches, discuss with relevant site locations, 16 means of power generation(station)
Electrical Engineering
QA proportional controller is used to control the temperature in a tank,
which varies from 20 0C to 100 0C. The controller is required to close the valve
on steam supply when temperature rises to 80 0C and open the steam supply
when temperature drops to 20 0C. Set point is 60 0C.
[1]. Calculate proportional band and controller output when temperature in
the tank is 50 0C.
[2]. For the above process, design an electronic controller around a single
op-amp. Controller output is 0-5 V; voltage varies linearly from 1 V to 5 V
when temperature varies from 20 0C to 100 0C. Zero corresponds to 50 %
controller output.
[3]. Draw and label the closed loop with electronic controller.
which varies from 20 0C to 100 0C. The controller is required to close the valve
on steam supply when temperature rises to 80 0C and open the steam supply
when temperature drops to 20 0C. Set point is 60 0C.
[1]. Calculate proportional band and controller output when temperature in
the tank is 50 0C.
[2]. For the above process, design an electronic controller around a single
op-amp. Controller output is 0-5 V; voltage varies linearly from 1 V to 5 V
when temperature varies from 20 0C to 100 0C. Zero corresponds to 50 %
controller output.
[3]. Draw and label the closed loop with electronic controller.
Electrical Engineering
Q.3 (a) Measurements conducted on a servomechanism show the system
response to be:
C (t) = 0.3 e60t + 1.5 e10t
, when subjected to a unit step input.
[1].Obtain the expression for the closed-loop transfer function.
[2].Determine the undamped natural frequency and damping ratio of the
system.
Q.3 (b) A Tank system having a time constant of 0.5 min and a resistance of
0.25 min /m2
is operating at steady state with an inlet flow of 2m3/min. The
flow is suddenly increased to 3m3/min. Plot the response of the tank level
(Assume area of cross section A = 2 m2).
Q.3 (c) Describe the Hardware elements of a process control system.
Differentiate the process lag and control lag with suitable example.
response to be:
C (t) = 0.3 e60t + 1.5 e10t
, when subjected to a unit step input.
[1].Obtain the expression for the closed-loop transfer function.
[2].Determine the undamped natural frequency and damping ratio of the
system.
Q.3 (b) A Tank system having a time constant of 0.5 min and a resistance of
0.25 min /m2
is operating at steady state with an inlet flow of 2m3/min. The
flow is suddenly increased to 3m3/min. Plot the response of the tank level
(Assume area of cross section A = 2 m2).
Q.3 (c) Describe the Hardware elements of a process control system.
Differentiate the process lag and control lag with suitable example.
Electrical Engineering
1.Sketch and explain each elements of communication System?
2.List and explain the need for modulation.
3.Dicus on the following concepts
* modulation
* modulation/base band/message bering signal
* modulating signal
* modulated signal
4. What is communication and communication system?
2.List and explain the need for modulation.
3.Dicus on the following concepts
* modulation
* modulation/base band/message bering signal
* modulating signal
* modulated signal
4. What is communication and communication system?
Electrical Engineering
Briefly discus on the following different amplitude modulating the Carrier signal by
Base band signal signal.
➢ Double side band, suppressed carrier AM,
➢ Conventional double-sideband AM,
➢ Single sideband AM, and
➢ Vestigial-side band AM
Base band signal signal.
➢ Double side band, suppressed carrier AM,
➢ Conventional double-sideband AM,
➢ Single sideband AM, and
➢ Vestigial-side band AM
Electrical Engineering
1kg of air enclosed in a rigid container is initially at 4.8 bar and 150 °C. The container is heated until the temperature is 200 °C. Calculate the pressure of the air finally and the heat supplied during the process
