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What are the power quality disturbance?
asked
Mar 10, 2018
by
anonymous
What are the power quality disturbance?
power
quality
disturbance
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Related questions
asked
Mar 10, 2018
by
anonymous
What are the different power quality issues?
What are the different power quality issues?
different
power
quality
issues
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asked
Mar 10, 2018
by
anonymous
What is harmonic in power quality?
What is harmonic in power quality?
harmonic
power
quality
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asked
Mar 10, 2018
by
anonymous
What is a power quality analyzer?
What is a power quality analyzer?
power
quality
analyzer
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0
answers
asked
Mar 10, 2018
by
anonymous
What is power quality meter?
What is power quality meter?
power
quality
meter
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asked
Mar 10, 2018
by
anonymous
What is good power quality?
What is good power quality?
good
power
quality
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52
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0
answers
asked
Mar 10, 2018
by
anonymous
What is power quality monitoring?
What is power quality monitoring?
power
quality
monitoring
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asked
Sep 10, 2017
by
anonymous
why power quality is important?
Last answer:
Power quality is important because the electrical appliances will works better and will be safer and less loss in energy. Low energy waste and improves stability of power system .
power
quality
important
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1
answer
asked
Sep 10, 2017
by
anonymous
how to monitor power quality?
Last answer:
By applying various power quality monitoring devices and using telecommunication technique .
monitor
power
quality
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1
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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
answers
asked
Apr 29, 2018
by
anonymous
During a disturbance on a synchronous machine, the rotor swings form A to B before finally setting down to
During a disturbance on a synchronous machine, the rotor swings form A to B before finally setting down to steady state at point C on the power angle curve. The speed of the machine during oscillation is synchronous at point(s)
Last answer:
During a disturbance on a synchronous machine, the rotor swings form A to B before finally setting down to steady state at point C on the power angle curve. The speed of the machine during oscillation is synchronous at point(s) only at C
disturbance
synchronous
machine
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151
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1
answer
asked
Mar 10, 2018
by
anonymous
Explain various performance parameter used to evaluate the quality of inverters.
Explain various performance parameter used to evaluate the quality of inverters.
performance
parameter
used
evaluate
quality
inverters
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0
answers
asked
Aug 31, 2018
by
anonymous
Quality control is aimed at:
Quality control is aimed at: a. Maintaining the desired quality b. Exceeding the desired quality c. Continuously improving the quality d. Following the quality
Last answer:
Quality control is aimed at: a. Maintaining the desired quality b. Exceeding the desired quality c. Continuously improving the quality d. Following the quality
quality
control
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66
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1
answer
asked
Mar 10, 2018
by
anonymous
What is the use of power factor correction?
What is the use of power factor correction?
use
power
factor
correction
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71
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0
answers
asked
Mar 10, 2018
by
anonymous
What is the best power factor?
What is the best power factor?
Last answer:
It is unity power factor but difficult to achieve in dynamic loads
best
power
factor
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75
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1
answer
asked
Mar 10, 2018
by
anonymous
What is the advantage of high power factor?
What is the advantage of high power factor?
Last answer:
Reduced copper losses Smaller conductor size Improve voltage regulation Increase system capability Less energy bill
advantage
high
power
factor
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2
answers
asked
Mar 10, 2018
by
anonymous
What is power factor angle?
What is power factor angle?
power
factor
angle
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0
answers
asked
Mar 10, 2018
by
anonymous
What is a digital power meter?
What is a digital power meter?
digital
power
meter
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48
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0
answers
asked
Mar 10, 2018
by
anonymous
What is an RF Power Meter?
What is an RF Power Meter?
rf
power
meter
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44
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0
answers
asked
Mar 10, 2018
by
anonymous
What causes random power outages?
What causes random power outages?
causes
random
power
outages
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0
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asked
Mar 10, 2018
by
anonymous
What is power logger?
What is power logger?
power
logger
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0
answers
asked
Mar 10, 2018
by
anonymous
What can you do to prevent a power surge?
What can you do to prevent a power surge?
prevent
power
surge
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51
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0
answers
asked
Mar 10, 2018
by
anonymous
What would cause a power surge in a house?
What would cause a power surge in a house?
Last answer:
If your neibour / other flat owners / your maintainer staff switch on any type of inductive load that can cause power surge / dip
cause
power
surge
house
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1
answer
asked
Mar 10, 2018
by
anonymous
What is meant by power dip?
What is meant by power dip?
power
dip
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0
answers
asked
Mar 10, 2018
by
anonymous
Can you have a power factor greater than 1?
Can you have a power factor greater than 1?
Last answer:
We cannot have power factor greater than 1. As it is a measure of cosine of angle between voltage and current.
power
factor
greater
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1
answer
asked
Mar 10, 2018
by
anonymous
Why do we need to correct power factor?
Why do we need to correct power factor?
need
correct
power
factor
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0
answers
asked
Mar 10, 2018
by
anonymous
How do you measure power factor?
How do you measure power factor?
Last answer:
P= 1.83*V*I*COS@ where P is power V is voltage I is current COS @ is P.F COS@= P/(1.83*V*I) in other way cos @ = true power/apparent power
measure
power
factor
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1
answer
asked
Mar 10, 2018
by
anonymous
Can a power surge erase a hard drive?
Can a power surge erase a hard drive?
power
surge
erase
hard
drive
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0
answers
asked
Mar 10, 2018
by
anonymous
Can power surge damage your computer?
Can power surge damage your computer?
power
surge
damage
computer
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46
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0
answers
asked
Mar 10, 2018
by
anonymous
How often do power surges occur?
How often do power surges occur?
power
surges
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0
answers
asked
Aug 2, 2019
by
anonymous
What are the basic requirements of locating wind power plant ?
What are the basic requirements of locating wind power plant ?
Last answer:
The basic requirements of locating wind power plant: 1) The site should be selected where winds are strong i.e. where pressure of wind is high and there is continuity. 2) Wind pressure ... the turbine which can affect the system's overall performance. 10)Possibility to connect to power grid.
basic
requirements
locating
wind
power
plant
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89
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1
answer
asked
Jul 24, 2019
by
anonymous
What are the criteria for selection of site for hydroelectric power plant?
What are the criteria for selection of site for hydroelectric power plant?
Last answer:
Following Factors to be kept while site selecting for Hydro power plant: 1. It should be located where high rain fall occurs. 2. A large catchments area must be available to store water. 3. It ... 12. Cost of land should be less. 13. Skilled and unskilled man power should be available nearby.
hydroelectric
power
plant
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2.5k
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1
answer
asked
Mar 10, 2018
by
anonymous
What are the types of power generation?
What are the types of power generation?
types
power
generation
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53
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0
answers
asked
Mar 10, 2018
by
anonymous
What are the components of a power system?
What are the components of a power system?
Last answer:
generator Traansformer Conductors Insulators
components
power
system
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1
answer
asked
Mar 8, 2018
by
anonymous
What are the types of power losses in inductor?
What are the types of power losses in inductor?
Last answer:
Copper losses, Eddy current loss, and hysteresis loss are the types of power losses in inductor.
types
power
losses
inductor
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93
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1
answer
asked
Dec 19, 2017
by
anonymous
What are the advantages and disadvantages of tidal power?
What are the advantages and disadvantages of tidal power?
Last answer:
Free of costPollution freeLong life Less maintenance
advantages
disadvantages
tidal
power
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115
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1
answer
asked
Dec 19, 2017
by
anonymous
What are the advantages of hydroelectric power?
What are the advantages of hydroelectric power?
Last answer:
It is free from pollution It requires less labour to supervision Here water can use again and again
advantages
hydroelectric
power
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215
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2
answers
asked
Dec 4, 2017
by
anonymous
what are the three different types of Electric power?
what are the three different types of Electric power?
Last answer:
Real,reactive,apparent power
types
electric
power
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113
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2
answers
asked
Aug 8, 2017
by
anonymous
what are the importance of reactive power?
what are the importance of reactive power?
Last answer:
Importance of Reactive Power Voltage level control is important In power system. Varying reactive power will vary voltage level. Reactive power is directly proportional to ... power for useful work. Reactive power is required to generate magnetic flux.
reactive
power
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109
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1
answer
asked
Mar 10, 2018
by
anonymous
What are interconnected power system?
What are interconnected power system?
Last answer:
Interconnected power systems are those which connect different geographic regions. In Australia we have a National Electricity Grid which connects 6 states. Transfers of power occur between the states depending ... make more profit from this.National-Electricity-Market-Fact-Sheet.pdf (0,9 MB)
interconnected
power
system
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237
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3
answers
asked
May 8, 2018
by
anonymous
Two 100W, 200V lamps are connected in series across a 200V supply. The total power
Two 100W, 200V lamps are connected in series across a 200V supply. The total power consumed by each lamp will be in Watts
Last answer:
4800
lamps
connected
series
supply
total
power
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303
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2
answers
asked
May 8, 2018
by
anonymous
The main disadvantages of having poor power factors are:
The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
Last answer:
The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
disadvantages
poor
power
factors
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53
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1
answer
asked
Apr 28, 2018
by
anonymous
If non-linear loads are connected to the power system, then
If non-linear loads are connected to the power system, then (A) displacement power factor is same as the total power factor (B) displacement power factor is not equal to the total power factor (C) displacement power factor is due to harmonic currents (D) total power factor is due to fundamental component of current
Last answer:
If non-linear loads are connected to the power system, then displacement power factor is not equal to the total power factor
non-linear
loads
connected
power
system
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1
answer
asked
Apr 28, 2018
by
anonymous
The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are
The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is (A) zero (B) 0.5 (C) between zero and 0.5 (D) between 0.5 and unity
Last answer:
The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is between 0.5 and unity
power
consumed
balanced
load
measured
two-wattmeter
method
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106
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1
answer
asked
Mar 21, 2018
by
anonymous
The power factor of a single phase load can be calculated if the instruments available are?
Last answer:
The power factor of a single phase load can be calculated if the instruments available are three ammeters or three voltmeters.
power
factor
single
phase
load
calculated
instruments
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133
views
2
answers
asked
Mar 21, 2018
by
anonymous
In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at?
Last answer:
In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°.
dynamometer
3-phase
power
factor
meter
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80
views
1
answer
asked
Mar 20, 2018
by
anonymous
The standard full-load power factor ratings for synchronous motors are?
Last answer:
The standard full-load power factor ratings for synchronous motors are unity or 0.8 leading.
standard
full-load
power
factor
ratings
synchronous
motors
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66
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1
answer
asked
Mar 20, 2018
by
anonymous
In a distribution system, in order to improve power factor, the synchronous capacitors are installed?
Last answer:
In a distribution system, in order to improve power factor, the synchronous capacitors are installed at the receiving end.
distribution
system
improve
power
factor
synchronous
capacitors
installed
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104
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1
answer
asked
Mar 20, 2018
by
anonymous
For the protection of power station buildings against direct strokes the requirements are?
Last answer:
For the protection of power station buildings against direct strokes the requirements are interception, conduction and dissipation.
protection
power
station
direct
strokes
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58
views
1
answer
asked
Mar 20, 2018
by
anonymous
To protect most of the electrical equipment handling low power, the types of relays used are?
Last answer:
To protect most of the electrical equipment handling low power, the types of relays used are thermocouple, electronic and bimetallic.
low
power
types
relays
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74
views
1
answer
asked
Mar 20, 2018
by
anonymous
The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to?
Last answer:
The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc.
contacts
high
voltage
switches
power
system
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1
answer
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