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How many volts are in the power lines?
asked
Mar 10, 2018
by
anonymous
How many volts are in the power lines?
volts
power
lines
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asked
Mar 15, 2018
by
anonymous
How many volts does it take to power an Arduino?
How many volts does it take to power an Arduino?
Last answer:
5volts is enough to supply the Arduino.
volts
power
arduino
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133
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1
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asked
Mar 22, 2018
by
anonymous
Overhead lines for power supply to tramcars are at a minimum height of?
Last answer:
Overhead lines for power supply to tramcars are at a minimum height of 10 m.
overhead
lines
power
supply
tramcars
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asked
Apr 30, 2018
by
anonymous
In tuned power lines, on load :
In tuned power lines, on load : (A) the receiving end voltage is numerically equal to the sending end voltage (B) the receiving end current is numerically equal to the sending end current (C) there is no voltage drop (D) all the above
Last answer:
In tuned power lines, on load : (A) the receiving end voltage is numerically equal to the sending end voltage (B) the receiving end current is numerically equal to the sending end current (C) there is no voltage drop (D) all the above
tuned
power
lines
load
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55
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1
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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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1
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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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5
answers
asked
Mar 10, 2018
by
anonymous
What is a safe distance from power lines?
What is a safe distance from power lines?
safe
distance
power
lines
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asked
Apr 28, 2018
by
anonymous
If a 5-bus test system contains 6 transmission lines and one transformer, how many non- zero elements are
If a 5-bus test system contains 6 transmission lines and one transformer, how many non-zero elements are there in the system Y-bus ? (A) 25 (B) 12 (C) 11 (D) 19
Last answer:
If a 5-bus test system contains 6 transmission lines and one transformer, 19 non-zero elements are there in the system Y-bus.
test
system
contains
transmission
lines
transformer
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1
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asked
Oct 17, 2017
by
anonymous
how can we express 0.40 kV in volts?
how can we express 0.40 kV in volts?
Last answer:
Kvx1000=400v
express
volts
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2
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asked
Mar 20, 2018
by
anonymous
Series capacitors on transmission lines are of little use when the load VAR requirement is?
Last answer:
Series capacitors on transmission lines are of little use when the load VAR requirement is small.
series
capacitors
transmission
lines
use
load
var
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1
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asked
Aug 18, 2019
by
anonymous
Why are overhead transmission lines not insulated?
Why are overhead transmission lines not insulated?
Last answer:
Insulators are useful to help separate electrical conductors when they come into physical contact. Overhead Transmission Lines Are Not Insulated: The overhead transmission line is carrying extreme high voltage and ... a whole lot of thick insulation to absorb the heat produced by such high voltage.
overhead
transmission
lines
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7
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asked
Apr 30, 2018
by
anonymous
A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are :
A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are : (A) less than 66 kV (B) lie between 66 kV and 110 kV (C) more than 165 kV (D) lie between 110 kV and 165 kV
Last answer:
A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are : lie between 66 kV and 110 kV
minimum
ground
overhead
lines
operating
voltages
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1
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asked
May 21, 2020
by
anonymous
Find out number of data lines required to interface 16 LEDs arrange in the 4 x 4 matrix form.
Find out number of data lines required to interface 16 LEDs arrange in the 4 x 4 matrix form.
Last answer:
4+4=8, eight lines are required for 4x4 matrix of 16 LEDs
data
lines
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62
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1
answer
asked
May 8, 2018
by
anonymous
In which of the following transmission lines, the value of the Shunt admittance should be
In which of the following transmission lines, the value of the Shunt admittance should be approximated to zero ? (A) A 66 kV 35 km long line (B) A 132 kV 200 km long line (C) A 220 kV 300 km long line (D) A 400 kV 500 km long line
Last answer:
In which of the following transmission lines, the value of the Shunt admittance should be approximated to zero ? (A) A 66 kV 35 km long line (B) A 132 kV 200 km long line (C) A 220 kV 300 km long line (D) A 400 kV 500 km long line
transmission
lines
shunt
admittance
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asked
May 1, 2018
by
anonymous
The purpose of guard ring in transmission lines is to
The purpose of guard ring in transmission lines is to (1) reduce the earth capacitance of the lowest unit. (2) increase the earth capacitance of the lowest unit. (3) reduce the transmission lines losses. (4) reduce the reactance of the line
Last answer:
The purpose of guard ring in transmission lines is to reduce the earth capacitance of the lowest unit.
guard
ring
transmission
lines
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asked
Mar 10, 2018
by
anonymous
How does electricity get from the power plant to your home?
How does electricity get from the power plant to your home?
Last answer:
Electricity gets into my home due to potential diffrence created between the live wire and neutral wire.
electricity
power
plant
home
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1
answer
asked
Sep 17, 2019
by
Aishwarya ilp
Explain about cross arms in overhead lines
cross
arms-
overhead
lines
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asked
Apr 28, 2018
by
anonymous
Corona loss in transmission lines can be reduced by
Corona loss in transmission lines can be reduced by (A) using small diameter conductors (B) using bundled conductors (C) using less spacing between conductors (D) increasing the transmission line voltage
Last answer:
Corona loss in transmission lines can be reduced by using bundled conductors
corona
loss
transmission
lines
reduced
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1
answer
asked
May 22, 2020
by
anonymous
State the classification of transmission lines depending on length of transmission lines.
State the classification of transmission lines depending on length of transmission lines.
Last answer:
A) According to Voltage level: ( 2 Marks) a) High voltage Transmission Line (HV) up to 33 KV b) Extra High Voltage Transmission Line (EHV) above 33 KV up to 400 KV c) Ultra ... Transmission Line: - The length of Long transmission Line is above 200KM and its line voltage is above 100KV
classification
transmission
lines
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2
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asked
Aug 8, 2018
by
anonymous
Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.
Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.
Last answer:
Magnetic linens of force is the imaginary lines for magnetic field of magnet around it. These magnetic lines of forces are introduced by Michael Faraday. The direction of lines of force is from N-pole to S-pole. The figure shows lines of force for bar type magnet.
magnetic
lines
force
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79
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1
answer
asked
Apr 29, 2018
by
anonymous
Which of the following is the name given to the lines of electric force which move so that its beginning traces
Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity
Last answer:
Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative ... A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity
lines
electric
force
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60
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1
answer
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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69
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1
answer
asked
Sep 4, 2018
by
anonymous
Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.
Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.
Last answer:
Magnetic Lines of force- These are the imaginary lines (having no physical existence) introduced by Faraday for the pictorial representation of the distribution of a magnetic field. OR A line of ... that the tangent at any point gives direction of the resultant force at that point.
define
magnetic
lines
force
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1
answer
asked
Mar 10, 2018
by
anonymous
Why ACSR conductor is used for overhead lines?
Why ACSR conductor is used for overhead lines?
Last answer:
It has high tensile strength
acsr
conductor
used
overhead
lines
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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
Mar 10, 2018
by
anonymous
How many watts does a power plant produce?
How many watts does a power plant produce?
watts
power
plant
produce
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82
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0
answers
asked
Mar 10, 2018
by
anonymous
What is sag in power system?
What is sag in power system?
Last answer:
Sag is a catenary curve in between two points of supporters.and also we can say the lowest point of the conductor in between the two points of supporters.
sag
power
system
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141
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2
answers
asked
Mar 10, 2018
by
anonymous
What is meant by feeder in power system?
What is meant by feeder in power system?
Last answer:
A feeder line is a peripheral route or branch in a network which connects smaller or more remote nodes with a route or branch carrying heavier traffic. The term is applicable to any system based on a hierarchical network.
feeder
power
system
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78
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1
answer
asked
Mar 10, 2018
by
anonymous
What is microgrid in power system?
What is microgrid in power system?
microgrid
power
system
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82
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0
answers
asked
Mar 10, 2018
by
anonymous
What is power system planning?
What is power system planning?
power
system
planning
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71
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0
answers
asked
Aug 1, 2020
by
anonymous
An intersection is a point where two or more lines/curves meet or cross. How many intersections are there in the figure given below?
Last answer:
17
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1
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asked
Dec 16, 2017
by
anonymous
How do you find power in a circuit?
How do you find power in a circuit?
Last answer:
Power can be find in a circuit by the means of meters .if an individual want to check for a power in a circuit he/she Calabria the meters on a high voltage range and put the meters Lee in parallel with the circuit he /she will know the amount of power within that circuit .
how
do
you
find
power
in
a
circuit
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1
answer
asked
Mar 10, 2018
by
anonymous
How many amps do you need for a house?
How many amps do you need for a house?
amps
house
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74
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0
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
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
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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
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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0
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136
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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
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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95
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1
answer
asked
Jul 24, 2019
by
anonymous
Why concentrating collectors are used in solar power plant.
Last answer:
Because of following advantages concentrating type collector are used in solar power plant: - 1. Temperature: Temperature obtained is high because absorber area is less and collector/reflector area ... results: As tracking system is used better results are obtain than flat type collector.
solar
power
plant
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66
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1
answer
asked
Apr 26, 2018
by
anonymous
Regulating-transformers are used in power systems for control of
Regulating-transformers are used in power systems for control of
Last answer:
Regulating-transformers are used in power systems for control of power flow
regulating-transformers
used
power
systems
control
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119
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1
answer
asked
Mar 25, 2018
by
anonymous
Capacitors for power factor correction are rated in?
Capacitors for power factor correction are rated in?
Last answer:
Capacitors for power factor correction are rated in kVAR.
capacitors
power
factor
correction
rated
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57
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1
answer
asked
Mar 21, 2018
by
anonymous
Commonly used instruments in power system measurement are?
Last answer:
Commonly used instruments in power system measurement are induction.
commonly
used
instruments
power
system
measurement
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73
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1
answer
asked
Mar 20, 2018
by
anonymous
Air blast circuit breakers for 400 kV power system are designed to operate in?
Last answer:
Air blast circuit breakers for 400 kV power system are designed to operate in 50 millisecond.
air
blast
circuit
breakers
power
system
designed
operate
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179
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1
answer
asked
Mar 19, 2018
by
anonymous
In a power or distribution transformer about 10 percent end turns are heavily insulated?
Last answer:
In a power or distribution transformer about 10 percent end turns are heavily insulated to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns.
power
distribution
transformer
turns
heavily
insulated
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69
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1
answer
asked
Sep 29, 2018
by
anonymous
Discuss how power factor tariff results into energy conservation.
Discuss how power factor tariff results into energy conservation.
Last answer:
Power factor tariff results into energy conservation: i) Applying incentives and penalties according to power factor is an effective way, which enables consumer to improve power factor so that he can ... finally leads to reduction in the current drawn by the load and helps for energy conservation.
power
factor
tariff
energy
conservation
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2.5k
views
1
answer
asked
Mar 15, 2018
by
anonymous
How can we improve power factor using synchronous motor?
How can we improve power factor using synchronous motor?
improve
power
factor
synchronous
motor
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60
views
0
answers
asked
Mar 10, 2018
by
anonymous
How much electricity is produced by a power plant?
How much electricity is produced by a power plant?
electricity
power
plant
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79
views
0
answers
asked
Mar 10, 2018
by
anonymous
How can power loss be reduced?
How can power loss be reduced?
power
loss
reduced
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60
views
0
answers
asked
Mar 10, 2018
by
anonymous
How do you calculate power loss?
How do you calculate power loss?
calculate
power
loss
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0
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54
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0
answers
asked
Mar 10, 2018
by
anonymous
How much power does an Arduino use?
How much power does an Arduino use?
power
arduino
use
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0
answers
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