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Explain complex power.
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Mar 11, 2018
by
anonymous
Explain complex power.
complex
power
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asked
May 3, 2020
by
anonymous
State design considerations for illumination scheme of commercial complex.
State design considerations for illumination scheme of commercial complex.
Last answer:
Design considerations for illumination scheme of commercial complex: * Tasks to be performed in the space * Desired light levels based on the tasks performed in the space * Room size ... conditions * Cleanliness of the area during operation * Maintenance schedule * Availability of daylight
state
design
considerations
for
illumination
scheme
of
commercial
complex
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Apr 1, 2020
by
anonymous
Evaluate the following complex numbers
Evaluate the following complex numbers
Last answer:
Evaluate the following complex numbers
evaluate
the
following
complex
numbers
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asked
Mar 30, 2020
by
anonymous
Evaluate the following complex numbers and leave your results in polar form
Evaluate the following complex numbers and leave your results in polar form
Last answer:
Evaluate the following complex numbers and leave your results in polar form
evaluate
the
following
complex
numbers
and
leave
your
results
in
polar
form
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asked
Mar 30, 2020
by
anonymous
Calculate these complex numbers and express your results in rectangular form
Calculate these complex numbers and express your results in rectangular form
Last answer:
Calculate these complex numbers and express your results in rectangular form
calculate
these
complex
numbers
and
express
your
results
in
rectangular
form
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1
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asked
Jul 29, 2019
by
anonymous
The Matrix has Complex eigenvalues and vectors
The Matrix has Complex eigenvalues and vectors
Last answer:
The Matrix has Complex eigenvalues and vectors
matrix
complex
eigenvalues
vectors
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163
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1
answer
asked
Mar 11, 2018
by
anonymous
Explain power relations in three phase circuit.
Explain power relations in three phase circuit.
power
relations
three
phase
circuit
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asked
Mar 11, 2018
by
anonymous
Explain power in single phase AC circuit.
Explain power in single phase AC circuit.
power
single
phase
ac
circuit
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asked
Mar 11, 2018
by
anonymous
Explain power system analysis.
Explain power system analysis.
power
system
analysis
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asked
Jan 7
by
anonymous
(i) Explain construction and working of geothermal power plant. (ii) Explain the construction and working of bomb calorimeter.
(i) Explain construction and working of geothermal power plant. (ii) Explain the construction and working of bomb calorimeter.
Last answer:
(i) Geothermal power plant: Construction and Working: geothermal power plant which consists of the following main components: Underground steam storage, steam separator, steam separator, turbine and Generator. Steam is ... . From the above data the calorific value of the fuel can be found.
heat
power
engineering
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1
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asked
Jan 7
by
anonymous
Explain working of thermal power plant.
Explain working of thermal power plant.
Last answer:
Working of thermal power plant: In this power plant, coal is used as a fuel for combustion in combustion chamber. After combustion of fuel the heat is generated and this heat is given to the ... by using cooling water and this condensate again used for the boiler with the help of feed pump.
heat
power
engineering
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asked
May 17, 2020
by
anonymous
Briefly explain how the power factor of an inductive circuit can be improved.
Briefly explain how the power factor of an inductive circuit can be improved.
Last answer:
As we know that power factor should be corrected to ensure that the current supplied is cost friendly. Meaning the power factor should be around one but not greater than one(0.8-0.9) in a ... an inductive circuit due to the inductive reactance which oppose the change of current in the ac circuit.
power
factor
electrical
fundamental
circuit
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1
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asked
May 2, 2020
by
anonymous
Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.
Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.
Last answer:
1. A step down transformer 2. A rectifier 3. A filter 4. A regulator Operation of Regulated Power Supply:- Step Down Transformer:- A step down transformer will ... regulator. A regulator will maintain the output constant even when changes at the input or any other changes occur.
draw
the
block
diagram
of
regulated
power
supply
explain
function
each
and
waveforms
stage
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asked
Aug 8, 2019
by
anonymous
Draw the block diagram of satellite sub-system and explain power subsystem.
Draw the block diagram of satellite sub-system and explain power subsystem.
Last answer:
POWER SUBSYSTEM- This system provides the necessary DC power to the satellite. All communication satellites derive their electrical power from solar cells. There is also a battery backup facility used during ... . to d.c. converter is used to raise the level of low voltages to high voltage.
block
diagram
satellite
sub-system
power
subsystem
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asked
Aug 2, 2019
by
anonymous
Classify condensers used in thermal power station. Explain each type in brief.
Classify condensers used in thermal power station. Explain each type in brief.
Last answer:
Types of condenser: Classification: 1. Jet Condenser (Mixing Type) 2. Surface condenser (non Mixing type) Explanation:- 1. Jet Condenser (Mixing Type) In Jet condenser the steam ... there in no direct contact between the steam and cooling water. This condensate is reused in boiler.
condensers
thermal
power
station
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asked
Aug 2, 2019
by
anonymous
Explain the working of Hydro power station with schematic layout.
Explain the working of Hydro power station with schematic layout.
Last answer:
Working of Hydro- Electric Power Plant: Water stored at high level by constructing dam across river. This stored water has potential energy. This stored water is passed to run the water ... energy and Alternator is coupled to water turbine which converts mechanical energy into electrical energy.
working
hydro
power
station
schematic
layout
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asked
Jul 24, 2019
by
anonymous
Explain the function of different parts of a typical nuclear power plant with neat sketch.
Explain the function of different parts of a typical nuclear power plant with neat sketch.
Last answer:
Functions of each part of Nuclear power plant:- 1) Nuclear Reactor: In nuclear reactor the fuel rod of U235 is placed through which tremendous amount of heat energy is ... is mechanically coupled with steam turbine. 8) Alternator: It converts mechanical energy into electrical energy.
nuclear
power
plant
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1
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asked
Jul 24, 2019
by
anonymous
With a neat diagram explain pumped storage hydro power plant.
With a neat diagram explain pumped storage hydro power plant.
Last answer:
Diagram of pumped storage hydro power plant: Explanation: In this power plant, generator is so designed that it Converts mechanical power into electrical power and also works as a ... helps in reducing a reserve capacity of PP as it provides additional power during peak load period.
pumped
storage
hydro
power
plant
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1
answer
asked
Jul 24, 2019
by
anonymous
With a neat diagram explain solar photovoltaic power plant.
With a neat diagram explain solar photovoltaic power plant.
Last answer:
Diagram of solar photovoltaic power plant : Explanation: Solar power plant consists of following components: 1. Photovoltaic cell panel: Its function is to convert sunrays directly into DC ... . 5. Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V
solar
photovoltaic
power
plant
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1
answer
asked
Jul 24, 2019
by
anonymous
With a neat diagram explain medium head hydro-electric power plants.
With a neat diagram explain medium head hydro-electric power plants.
Last answer:
Diagram of medium head hydro-electric power plants: Explanation:- If head of water is between 30 and 100 m, the plant is called a medium-head plant. Potential energy of ... Francis turbines are normally used. Alternator required in these plants is of low speed and large in diameter.
medium
head
hydro-electric
power
plants
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346
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1
answer
asked
Jul 24, 2019
by
anonymous
With a neat diagram explain solar power tower.
Last answer:
Diagram explain solar power tower : All concentrating solar thermal power (STP) basic elements: Concentrator Receiver Transport-storage (a portion of the thermal energy ... with alternator which converts mechanical power to electrical energy Exhaust steam is condensate in condenser
solar
power
tower
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338
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1
answer
asked
Sep 29, 2018
by
anonymous
Draw and explain bulk correction method for power factor & control.
Draw and explain bulk correction method for power factor & control.
Last answer:
Bulk correction method for power factor & control: i) Here individual starter controls the capacitors located at distribution panel. ii) Centralized compensation is employed in large industrial plants where many ... capacitor units in steps to maintain P.F. more than preset limit (0.95).
bulk
correction
method
power
factor
control
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1
answer
asked
Sep 22, 2018
by
anonymous
Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses.
Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses.
Last answer:
Energy conservation techniques to reduce commercial losses: 1. Mitigation of Power Theft: Power theft being the most important issue which all of the service providing utilities ... agricultural sector. Prepaid meters may prove effective measures against unauthorized abstraction of energy.
mitigation
power
theft
faulty
meter
replacement
energy
conservation
techniques
reduce
commercial
losses
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68
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1
answer
asked
Sep 22, 2018
by
anonymous
Explain energy conservation technique “by improving power quality” for induction motor.
Explain energy conservation technique “by improving power quality” for induction motor.
Last answer:
Energy conservation method in induction motor by improving power quality: Electrical energy can be conserved by improving the power quality. It can be achieved by avoiding voltage unbalance, maintaining ... losses can be minimized by using harmonic filter thus reducing the harmonics in the system.
energy
conservation
technique
improving
power
quality
induction
motor
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2
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asked
Sep 8, 2018
by
anonymous
Explain captive power generation in brief
Explain captive power generation in brief
Last answer:
Advantages of captive power generation: 1. Reliability of supply increases. 2. Power quality is good. (Free from harmonics) 3. Transmission losses reduce as generation is nearby load centre ... . Same steam can be used for generation of electricity. Thus increase efficiency of industry.
captive
power
generation
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66
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2
answers
asked
Sep 8, 2018
by
anonymous
State the types of radioactive waste generated in a nuclear power station. Explain the methods employed for their disposal.
State the types of radioactive waste generated in a nuclear power station. Explain the methods employed for their disposal.
Last answer:
Types of radioactive waste: The waste produced in nuclear power plant is in the form of solid, liquid & gases, 1. Solid Waste Disposal:- Solid wastes removed from the reactor are very ... are measured. If it is safe then released to atmosphere at high level through large height chimney.
radioactive
waste
generated
nuclear
power
station
disposal
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90
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1
answer
asked
Sep 8, 2018
by
anonymous
Explain the importance of solar power in the energy deficient India.
Explain the importance of solar power in the energy deficient India.
Last answer:
Mainly electricity generated in India is from - Hydro power plant Thermal power plant Nuclear power plant BUT, To construct new Hydro power plant following are problem :- 1. There is ... start) 10. It saves the fossil fuel (coal, diesel, oil etc.) which are limited available.
importance
solar
power
energy
deficient
india
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1
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asked
Sep 8, 2018
by
anonymous
Explain the nuclear chain reaction in a nuclear power plant.
Explain the nuclear chain reaction in a nuclear power plant.
Last answer:
Nuclear chain reaction in a nuclear power plant: If a slow moving neutron hits unstable heavy nucleus of nuclear fuel U235 or Pu239 , the neutron is absorbed, the nucleus splits into two more ... chain reaction can be controlled and desired heat energy can be obtained in nuclear power plant.
nuclear
chain
reaction
power
plant
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1
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asked
Sep 8, 2018
by
anonymous
Explain with block diagram photovoltaic power generation.
Explain with block diagram photovoltaic power generation.
Last answer:
Photovoltaic power generation: Photovoltaic power generating system consists of following components: 1. Photovoltaic cell panel: Its function is to convert energy content of sunrays directly into DC ... . Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V.
block
diagram
photovoltaic
power
generation
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3.2k
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1
answer
asked
Sep 8, 2018
by
anonymous
Explain starting system in diesel electric power plant.
Explain starting system in diesel electric power plant.
Last answer:
Starting system in Diesel Electric Power Plant: It includes Storage battery, compressed air tanks, self-starter etc. The purpose of engine starting system is to rotate the engine initially while ... as Ammeters, Voltmeters, Wattmeters, Thermometers, Pressure gauges, Visible and audible alarm etc.
starting
system
diesel
electric
power
plant
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39
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1
answer
asked
Sep 8, 2018
by
anonymous
Explain the procedure for disposal of nuclear power plant.
Explain the procedure for disposal of nuclear power plant.
Last answer:
Disposal of nuclear waste: The waste products by nuclear fission may be solid, liquid or gas. i) Solid harmful disposals are packaged as required and shipped to a burial site for disposal. ii) Liquids ... and tested. If the required limits are met, these will be released to atmosphere.
procedure
disposal
nuclear
power
plant
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40
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1
answer
asked
Sep 8, 2018
by
anonymous
Explain fuel system and air intake system in diesel electric power plant.
Explain fuel system and air intake system in diesel electric power plant.
Last answer:
Fuel system and air intake system in diesel electric power plant : Fuel system: It consists of storage tank, strainers, fuel transfer pump and all day fuel tank. The fuel oil is supplied ... Filters are provided to remove dust particles from air which may act as abrasive in the engine cylinder.
fuel
system
air
intake
diesel
electric
power
plant
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1
answer
asked
Sep 7, 2018
by
anonymous
Explain ash disposal and dust collection in a thermal power plant.
Explain ash disposal and dust collection in a thermal power plant.
Last answer:
Ash disposal:- Various methods of disposal of ash are: Mechanical handling system. Pneumatic system. Hydraulic system Steam jet system Commonly used ash handling ... be done either manually or automatically. This removed fly ash is collected in separate container
ash
disposal
dust
collection
thermal
power
plant
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40
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1
answer
asked
Sep 7, 2018
by
anonymous
Classify hydro-electric power plants according to water flow regulation and explain in brief.
Classify hydro-electric power plants according to water flow regulation and explain in brief.
Last answer:
Classification of hydro-electric power plants according to water flow regulation of water flow:- 1. Large reservoir power plant 2. Run-off river (ROR) power plant with poundage 3. Run-off River ... depends upon rate of flow of water Initial cost is less Its purpose is to generate electricity.
hydro-electric
power
plants
according
water
flow
regulation
brief
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51
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1
answer
asked
Sep 6, 2018
by
anonymous
Explain the term reactive power. Why it is sometimes essential to measure reactive power?
Explain the term reactive power. Why it is sometimes essential to measure reactive power?
Last answer:
Reactive power: The reactive power (Q) is defined as the product of voltage(V), current (I) and sine of angle between voltage(V) and current( I) Therefore Reactive power Q = V I ... power so that corrective measures can be taken accordingly to maintain systems power factor near to the unity.
measure
reactive
power
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1
answer
asked
Sep 6, 2018
by
anonymous
With a neat sketch explain working of 1 phase dynamometer type power factor meter.
With a neat sketch explain working of 1 phase dynamometer type power factor meter.
Last answer:
Working of 1 phase dynamometer type power factor meter : The current coil is connected in series with load. Two pressure coils marked as A and B are connected across the supply terminals ... becomes stationary and the pointer shows steady deflection corresponding to the power factor of the load.
phase
dynamometer
type
power
factor
meter
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86
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1
answer
asked
Mar 11, 2018
by
anonymous
Explain transformer isolated drive circuits providing both signal and power.
Explain transformer isolated drive circuits providing both signal and power.
transformer
isolated
drive
circuits
signal
power
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71
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0
answers
asked
Feb 6, 2018
by
anonymous
Explain the formation of parasitic BJT and parasitic diode in Power MOSFET.
Explain the formation of parasitic BJT and parasitic diode in Power MOSFET. Can parasitic diode be used in same power electronics applications?
Last answer:
Parasitic Diode: The parasitic diode is in between drain and source. The MOSFET structure itself contains parasitic diode or body drain diode. This parasitic diode allows the reverse flow of current when the ... of MOSFET as a BJT collector. Parasitic BJT operates in the cut-off region.
parasitic
diode
bjt
power
mosfet
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2.4k
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1
answer
asked
Mar 11, 2018
by
anonymous
Explain single line diagram.
Explain single line diagram.
single
line
diagram
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60
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0
answers
asked
May 20, 2018
by
anonymous
For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real
For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to A) V B) v2 C) 1/V2 D)1/V
Last answer:
For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to 1/V2
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153
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1
answer
asked
Jan 7
by
anonymous
Draw and label the gas turbine power plant
Draw and label the gas turbine power plant
Last answer:
OR
heat
power
engineering
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3
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1
answer
asked
May 22, 2020
by
anonymous
State the effects of low power factor on efficiency and voltage regulation of short transmission lines.
State the effects of low power factor on efficiency and voltage regulation of short transmission lines.
Last answer:
i) Effect of Low power factor on efficiency:- When power factor of load reduces current drawn by transmission line increases so copper losses in transmission line increases, hence transmission ... increases, so voltage drop in transmission line increases so regulation increases. (Become Poor)
power
factor
short
transmission
lines
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75
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1
answer
asked
May 22, 2020
by
anonymous
State features of wireless power transmission.
State features of wireless power transmission.
Last answer:
Features of wireless power transmission: 1. Energy delivered anywhere in the world 2. Zero fuel cost 3. Less losses 4. Less use of copper wires 5. More efficiency 6. Minimum long- ... on cables would never exist in the transmission. 7. Power theft would be not possible at all.
features
wireless
power
transmission
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19
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1
answer
asked
May 17, 2020
by
anonymous
What is the value of capacitance required to improve power factor from 0.7 to 0.9.
What is the value of capacitance required to improve power factor from 0.7 to 0.9. Given that: Real power = 50 W Vrms of the source = 120 Frequency = 50 Hz #powerfactor
factor
power
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184
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0
answers
asked
May 6, 2020
by
anonymous
Summerise the role of power system engineer.
Summerise the role of power system engineer.
Last answer:
Role of power system engineer: i. On the planning side he or she has to make decisions on how much electricity to generate ii. For operation of the power system he has to plan for ... for energy conservation and load management. viii. For solving the power system problems he has to update with
role
power
system
engineer
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42
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1
answer
asked
Apr 20, 2020
by
anonymous
Power Electronic Devices
Power Electronic Devices
power
electronic
devices
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47
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0
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asked
Apr 8, 2020
by
anonymous
Electric Power
Electric Power
Last answer:
Electric Power
electric
power
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76
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1
answer
asked
Mar 21, 2020
by
anonymous
Find power delivered by voltage source
Last answer:
Find power delivered by voltage source
find
power
delivered
by
voltage
source
transformation
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40
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1
answer
asked
Aug 25, 2019
by
anonymous
Why engine power is measured in horsepower (HP) ?
Why engine power is measured in horsepower (HP) ?
Last answer:
James Watt compared engine output with that of work done by a horse. WD by horse = 746W.
engine
power
horsepower
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183
views
2
answers
asked
Aug 25, 2019
by
anonymous
Why is AC better for long distance power transmission than DC ?
Why is AC better for long distance power transmission than DC ?
Last answer:
ac is more economical to transmit for long distances . wires can be made smaller by step up transformer .. since major cost are wires to transmit .. then at the end of distance step down transformer is used for commercial use.
ac
long
distance
power
transmission
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166
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4
answers
asked
Aug 18, 2019
by
anonymous
Why don't we burry power lines underground ?
Why don't we burry power lines underground ?
Last answer:
Because conductor used for power transmission are not insulated and if we do so it create phase to ground fault causing interruptions to supply.
burry
power
lines
underground
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77
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5
answers
...