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What is a high tension power line?
asked
Mar 10, 2018
by
anonymous
What is a high tension power line?
high
tension
power
line
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2
Answers
answered
Jul 31, 2018
by
Ramanjuneyulu
3phase long lines
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answered
Jul 31, 2018
by
ishimwe khavelly
High tension power line is a high voltage of 115 kv and power line is underground transimissio used by urbun areas
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Related questions
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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75
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2
answers
asked
Mar 20, 2018
by
anonymous
For high value of diversity factor, a power station of given installed capacity will be in a position to supply?
Last answer:
For high value of diversity factor, a power station of given installed capacity will be in a position to supply more number of consumers.
high
value
diversity
factor
power
station
installed
capacity
position
supply
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96
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1
answer
asked
Mar 25, 2018
by
anonymous
Power factor of the system is kept high?
Power factor of the system is kept high?
Last answer:
Power factor of the system is kept high to reduce line losses, to maximise the utilization of the capacities of generators, lines and transformers, to reduce voltage regulation of the line.
power
factor
system
high
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90
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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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1
answer
asked
Mar 10, 2018
by
anonymous
Why high voltage is used in power transmission?
Why high voltage is used in power transmission?
Last answer:
The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.
high
voltage
power
transmission
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2
answers
asked
May 25, 2020
by
anonymous
Define surface tension. State its S.I. unit.
Define surface tension. State its S.I. unit.
Last answer:
Definition:- The force acting per unit length of an imaginary line drawn to surface of liquid. OR The surface tension is defined as the property of liquids by virtue of which the surface of a liquid is ... due to the tendency to contract and occupy minimum surface area. S.I. unit :- N/m
surface
tension
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20
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1
answer
asked
Mar 10, 2018
by
anonymous
What is meant by extra high voltage transmission?
What is meant by extra high voltage transmission?
Last answer:
HT & LT two types transmission in industrial line
extra
high
voltage
transmission
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1
answer
asked
Jun 29, 2019
by
anonymous
Is the power line voltage available in our homes a dc or an ac voltage?
Is the power line voltage available in our homes a dc or an ac voltage?
Last answer:
The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.
is
the
power
line
voltage
available
in
our
homes
a
dc
or
an
ac
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5.0k
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1
answer
asked
Mar 20, 2018
by
anonymous
An induction motor has relatively high power factor at?
Last answer:
An induction motor has relatively high power factor at near full load.
induction
motor
high
power
factor
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64
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1
answer
asked
Mar 10, 2018
by
anonymous
Why high voltage can reduce power loss?
Why high voltage can reduce power loss?
Last answer:
when voltage has increased due to reduced current flow, thus power loss given by ( I^2R) will be low due to reduced current(I^2) provided that resistance (R) is constant.
high
voltage
reduce
power
loss
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1
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asked
Apr 29, 2018
by
anonymous
A lightening arrester connected between the line and earth in a power system protects the terminal equipment
A lightening arrester connected between the line and earth in a power system (1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct lightening strokes (3) suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it
Last answer:
A lightening arrester connected between the line and earth in a power system protects the terminal equipment against travelling surges
lightening
arrester
line
earth
power
system
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71
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1
answer
asked
Apr 29, 2018
by
anonymous
For a 500 Hz frequency excitation, a 50 km long power line will be modeled as
For a 500 Hz frequency excitation, a 50 km long power line will be modeled as
Last answer:
For a 500 Hz frequency excitation, a 50 km long power line will be modeled as long line
frequency
excitation
long
power
line
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2.6k
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1
answer
asked
Apr 27, 2018
by
anonymous
The reactive power transfer over a line mainly depends on
The reactive power transfer over a line mainly depends on
Last answer:
The reactive power transfer over a line mainly depends on lVsl- lVRl
reactive
power
transfer
line
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1
answer
asked
Mar 25, 2018
by
anonymous
Pure inductive circuit takes power from the A.C. line when?
Pure inductive circuit takes power from the A.C. line when?
Last answer:
It takes power when voltage decreases and current increases.
pure
inductive
circuit
power
ac
line
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898
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2
answers
asked
Mar 20, 2018
by
anonymous
The inductive interference between power and communication line can be minimized by?
Last answer:
The inductive interference between power and communication line can be minimized by transposition of the power line, transposition of the communication line.
inductive
interference
between
power
communication
line
minimized
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84
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1
answer
asked
Mar 10, 2018
by
anonymous
Why is it cheaper to transmit electrical energy at high voltage?
Why is it cheaper to transmit electrical energy at high voltage?
Last answer:
Because of the electrical energy was step upped by transformers the transformer have high efficiency than the electric energy is cheaper
cheaper
transmit
electrical
energy
high
voltage
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115
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1
answer
asked
Dec 16, 2017
by
anonymous
Why transmission voltages are high?
Why transmission voltages are high?
Last answer:
If current is high then I2R losses will be more .If I2R losses is more then heat generated is more. By heat or increasing temperature resistance will also be increase which will decrease ... voltage we are decreasing current which is advantageous. That's why transmission voltages is high.
transmission
voltages
high
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118
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2
answers
asked
Mar 10, 2018
by
anonymous
What is a high voltage test?
What is a high voltage test?
high
voltage
test
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50
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0
answers
asked
Apr 30, 2018
by
anonymous
For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is
For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is
Last answer:
For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is 0.707 lead
short
transmission
line
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1
answer
asked
May 22, 2020
by
anonymous
State the advantages of use of high voltage in transmission of Electric power.
State the advantages of use of high voltage in transmission of Electric power.
Last answer:
Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases, its ... high voltage transmission line, successful interconnection of transmission line is possible than low voltage.
advantages
use
high
voltage
transmission
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1
answer
asked
Mar 25, 2018
by
anonymous
For high efficiency of transfer of power, internal resistance of the source should be?
For high efficiency of transfer of power, internal resistance of the source should be?
Last answer:
For high efficiency of transfer of power, internal resistance of the source should be less than the load resistance.
high
efficiency
transfer
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221
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1
answer
asked
Mar 15, 2018
by
anonymous
What can cause high amperage on a motor?
What can cause high amperage on a motor?
Last answer:
High amperage can result in a motor when the amount of load increases. when load increases , it reduces the rotor speed which increases the slip at constant synchronous speed ... , as a result more current shall have been drawn to maintain the additional load.
cause
high
amperage
motor
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52
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1
answer
asked
Mar 10, 2018
by
anonymous
What is Extra High Voltage?
What is Extra High Voltage?
extra
high
voltage
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60
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0
answers
asked
Mar 10, 2018
by
anonymous
What is considered low voltage and high voltage?
What is considered low voltage and high voltage?
low
voltage
high
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59
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0
answers
asked
Jun 18, 2018
by
anonymous
A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient?
A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9
Last answer:
A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9
transmission
line
terminated
impedance
reflection
coefficient
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240
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1
answer
asked
Mar 10, 2018
by
anonymous
What is the difference between a line voltage and low voltage control system?
What is the difference between a line voltage and low voltage control system?
difference
between
line
voltage
low
control
system
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99
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0
answers
asked
Mar 10, 2018
by
anonymous
What are the advantages of high voltage transmission?
What are the advantages of high voltage transmission?
Last answer:
Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases ... line increases 12. As transmission voltage increases power handling capacity of transmission line increases
advantages
high
voltage
transmission
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1
answer
asked
May 8, 2018
by
anonymous
The number of cycles in which a high speed circuit breaker can complete its operation is
The number of cycles in which a high speed circuit breaker can complete its operation is (A) 3 to 8 (B) 10 to 18 (C) 20 to 30 (D) 40 to 50
Last answer:
The number of cycles in which a high speed circuit breaker can complete its operation is 3 to 8
cycles
high
speed
circuit
breaker
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461
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1
answer
asked
Mar 10, 2018
by
anonymous
What are the losses in a transmission line?
What are the losses in a transmission line?
losses
transmission
line
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50
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answers
asked
Aug 11, 2018
by
anonymous
What is line voltage and phase voltage?
What is line voltage and phase voltage? Draw balanced three phase star connected system. Show all the voltages and currents.
line
voltage
phase
star
connected
system
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106
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asked
Mar 10, 2018
by
anonymous
What is the difference between line and phase current?
What is the difference between line and phase current?
Last answer:
The currents flows through phase lines is called line voltage and currents flows from phase to neutral line is called phase current
difference
between
line
phase
current
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1
answer
asked
Mar 10, 2018
by
anonymous
What is the difference between line and phase voltage?
What is the difference between line and phase voltage?
Last answer:
Line voltage is voltage between two phases R &Y (415 v) while phase voltage is the voltage between one phase and a neutral B & N (240 v).
difference
between
line
phase
voltage
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1
answer
asked
Dec 22, 2017
by
anonymous
What is the voltage in 3 phase line?
What is the voltage in 3 phase line?
Last answer:
between 430 to 440 v
voltage
phase
line
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256
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4
answers
asked
Aug 18, 2017
by
anonymous
what is mean by medium transmission line ?
what is mean by medium transmission line ?
Last answer:
The transmission line which have length between 80 km to 250 km is known as medium transmission line.
medium
transmission
line
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82
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1
answer
asked
Aug 18, 2017
by
anonymous
what is mean by short transmission line ?
what is mean by short transmission line ?
Last answer:
The transmission lines which have length less than 80 km is known as short transmission lines.
short
transmission
line
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1
answer
asked
Aug 18, 2017
by
anonymous
what is mean by long transmission line ?
what is mean by long transmission line ?
Last answer:
The transmission line which have length more than 250 km are known as long transmission lines.
long
transmission
line
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72
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1
answer
asked
Mar 21, 2018
by
anonymous
For measuring a very high resistance we should use?
Last answer:
For measuring a very high resistance we should use Meggar.
measuring
high
resistance
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86
views
1
answer
asked
Mar 15, 2018
by
anonymous
Why a dc series motor has a high starting torque?
Why a dc series motor has a high starting torque?
dc
series
motor
high
starting
torque
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63
views
0
answers
asked
Mar 21, 2018
by
anonymous
For measurements on high voltage capacitors, the suitable bridge is?
Last answer:
For measurements on high voltage capacitors, the suitable bridge is Schering bridge.
measurements
high
voltage
capacitors
bridge
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228
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1
answer
asked
Mar 18, 2018
by
anonymous
Which rotor is use for high speed in turbo alternators?
Which rotor is use for high speed in turbo alternators?
Last answer:
Non-salient pole rotor is used for high speed in turbo alternators.
rotor
use
high
speed
turbo
alternators
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65
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1
answer
asked
Mar 15, 2018
by
anonymous
Which capacitor is used for high frequency?
Which capacitor is used for high frequency?
capacitor
used
high
frequency
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67
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0
answers
asked
Mar 15, 2018
by
anonymous
Why high starting torque is required?
Why high starting torque is required?
high
starting
torque
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50
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0
answers
asked
Mar 10, 2018
by
anonymous
Why high voltage test is done?
Why high voltage test is done?
high
voltage
test
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51
views
0
answers
asked
Sep 10, 2017
by
anonymous
why mosfet is used for high frequency?
Last answer:
MOSFET provides better efficiency at high frequency and its high speed switching losses are less hence MOSFET is used for high frequency.
high
frequency
mosfet
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97
views
1
answer
asked
Aug 25, 2019
by
anonymous
While calculating performance of medium transmission line, what assumptions are made in case of (i) Nominal 'T' Method (ii) Nominal 'TT' Method.
While calculating performance of medium transmission line, what assumptions are made in case of (i) Nominal 'T' Method (ii) Nominal 'TT' Method.
Last answer:
(i) Assumptions are made in case of Nominal 'T' Method: a. It is assume that line capacitance is connected at center of transmission line. b. It is assume that half ... assumed that transmission line resistance & reactance per phase is connected in between two half transmission line capacitance
medium
transmission
line
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70
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1
answer
asked
May 8, 2018
by
anonymous
The sag of a transmission line is least affected by
The sag of a transmission line is least affected by (A) Self weight of the conductor. (B) Temperature of the surrounding air. (C) Current through the conductor. (D) Ice deposited on the conductor.
Last answer:
The sag of a transmission line is least affected by Current through the conductor.
sag
transmission
line
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100
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1
answer
asked
Apr 29, 2018
by
anonymous
A transmission line of 200 km has a certain A, B, C and D parameters. If the length is reduced to 60 km
A transmission line of 200 km has a certain A, B, C and D parameters. If the length is reduced to 60 km
Last answer:
A transmission line of 200 km has a certain A, B, C and D parameters. If the length is reduced to 60 km A increases, B decreases
transmission
line
parameters
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91
views
1
answer
asked
Apr 28, 2018
by
anonymous
The line current in a balanced delta system is 30 A. The load current is
The line current in a balanced delta system is 30 A. The load current is (A) 30√3 A (B) 30/√3 A (C) 10 A (D) 30/√2 A
Last answer:
The line current in a balanced delta system is 30 A. The load current is 30/√3 A
line
current
balanced
delta
system
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62
views
1
answer
asked
Mar 20, 2018
by
anonymous
The interaction between a transmission line and communication line is minimized by?
Last answer:
The interaction between a transmission line and communication line is minimized by transposing transmission as well as communication lines, increasing the height of the transmission line tower, increasing the distance between the two lines.
interaction
between
transmission
line
communication
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116
views
1
answer
asked
Mar 20, 2018
by
anonymous
When a transmission line is energized, the wave that propagates on it is?
Last answer:
When a transmission line is energized, the wave that propagates on it is current wave and voltage wave.
transmission
line
energized
wave
propagates
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105
views
1
answer
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