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Why is it cheaper to transmit electrical energy at high voltage?
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Mar 10, 2018
by
anonymous
Why is it cheaper to transmit electrical energy at high voltage?
cheaper
transmit
electrical
energy
high
voltage
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answered
Jun 2, 2019
by
prasadnani
Because of the electrical energy was step upped by transformers the transformer have high efficiency than the electric energy is cheaper
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asked
Mar 10, 2018
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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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Mar 10, 2018
by
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Why high voltage test is done?
Why high voltage test is done?
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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
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power
transmission
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Mar 10, 2018
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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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Apr 29, 2018
by
anonymous
In order to have a lower cost of electrical energy generation the load factor
In order to have a lower cost of electrical energy generation the load factor (1) and the diversity factor should be low (2) should be low but the diversity factor should be high (3) should be high but the diversity factor should be low (4) and the diversity factor both should be high
Last answer:
In order to have a lower cost of electrical energy generation the load factor and the diversity factor both should be high
lower
cost
electrical
energy
generation
load
factor
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asked
Mar 20, 2018
by
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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
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asked
May 8, 2018
by
anonymous
In fuel cell the __________ energy is converted into electrical energy.
In fuel cell the __________ energy is converted into electrical energy. (A) Mechanical (B) Chemical (C) Heat (D) Sound
Last answer:
In fuel cell the Chemical energy is converted into electrical energy.
fuel
cell
electrical
energy
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1
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asked
May 19, 2020
by
anonymous
Briefly explain how an electrical generator converts mechanical energy into electrical energy
Briefly explain how an electrical generator converts mechanical energy into electrical energy.
Last answer:
Working principle of DC generator: * Working principle of DC generator is the principle of dynamically induced emf or electromagnetic induction. * According to this principle, when flux is cut by a conductor, an ... , the flux is cut by the armature winding and an emf is dynamically induced in it.
electrical
mechanical
generator
energy
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May 21, 2019
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and
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Problem on electrical power and energy 2
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May 16, 2019
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problem
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May 16, 2019
by
anonymous
Problem on electrical power and energy 7
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problem
on
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May 16, 2019
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Problem on electrical power and energy 6
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problem
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1
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May 16, 2019
by
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problem
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asked
Sep 22, 2018
by
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State the need of energy conservation in electrical motor.
State the need of energy conservation in electrical motor.
Last answer:
Need of energy conservation in Electrical motors: 1. Induction motors are used as electrical drives in industrial, commercial and residential sectors. 2. Considering all industrial applications, 70% of ... system. 8. To adopt advanced technology in design and to use better quality materials.
energy
conservation
electrical
motor
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2
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Sep 22, 2018
by
anonymous
Describe the following energy conservation methods of electrical motor. i) By motor survey ii) By matching loads with motor rating
Describe the following energy conservation methods of electrical motor. i) By motor survey ii) By matching loads with motor rating
Last answer:
Energy conservation methods of electrical motor: 1) By Motor Survey: Large industries have a massive population of LT motors. Load survey of LT motors can be taken-up methodically to ... -speed motors, eddy-current couplings, fluid couplings, and solid-state electronic variable speed drives.
energy
conservation
methods
electrical
motor
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1
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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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1
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Mar 10, 2018
by
anonymous
What is Extra High Voltage?
What is Extra High Voltage?
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high
voltage
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0
answers
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Mar 10, 2018
by
anonymous
What is a high voltage test?
What is a high voltage test?
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voltage
test
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0
answers
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Mar 10, 2018
by
anonymous
What is considered low voltage and high voltage?
What is considered low voltage and high voltage?
low
voltage
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answers
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
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2
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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
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transmission
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asked
Aug 25, 2019
by
anonymous
Limitation and application of High Voltage DC (HVDC)
Limitation and application of High Voltage DC (HVDC)
Last answer:
Limitation and application of High Voltage DC (HVDC) : Limitation:- 1) It is difficult to step up and step down DC voltage like AC voltage. 2) Special cooling ... conventional/non-conventional) 12) Increasing existing grid utilization. 13) Interconnection of different grids or networks
high
voltage
dc
hvdc
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1
answer
asked
May 8, 2018
by
anonymous
Step-down transformer converts high voltage and low current into:
Step-down transformer converts high voltage and low current into: (A) How voltage and high current (B) High voltage and low current (C) Low voltage and high current (D) None of the above
Last answer:
Step-down transformer converts high voltage and low current into: Low voltage and high current
step-down
transformer
converts
high
voltage
low
current
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82
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1
answer
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
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voltage
transmission
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3.1k
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1
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asked
Sep 30, 2017
by
anonymous
does the high voltage side of Transformer winding have more number of turns?
Last answer:
yes High Voltage side of Transformer winding have more number of turns. and low voltage side of Transformer winding have less number of turns.
transformer
high
voltage
turns
winding
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83
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1
answer
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May 22, 2019
by
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What is electrical engineering
electrical
energy
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97
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0
answers
asked
Mar 10, 2018
by
anonymous
What is a high tension power line?
What is a high tension power line?
Last answer:
High tension power line is a high voltage of 115 kv and power line is underground transimissio used by urbun areas
high
tension
power
line
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70
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2
answers
asked
Mar 10, 2018
by
anonymous
Why is voltage increases before transmission?
Why is voltage increases before transmission?
voltage
increases
transmission
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105
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0
answers
asked
Dec 5, 2017
by
bhanuprakash
according to ohms law voltage directly proportional to current but it is reverse in transformer why?
About trnsformer
Last answer:
Acc to Ohms law V=IR but it is only applicable when our resistance R is constant, as in case of transformer we take impedence which is equivalent to resistance is not constant it varies with system parameters that why Ohms law not applicable in case of transformer
voltage
current
power
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1
answer
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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51
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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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98
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1
answer
asked
Dec 7, 2017
by
anonymous
Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.
Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.
Last answer:
MOSFET is metal oxide field effect transistor. MOSFET is a voltage controlled device. MOSFET is majority carrier device. MOSFET are of two one is n-channel MOSFET and p-channel MOSFET. Gate, ... . Hence, power MOSFET is operated at high enough gate-source voltage to minimize the conduction losses.
mosfet
power
gate
source
voltage
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754
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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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64
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0
answers
asked
Mar 15, 2018
by
anonymous
Why does induction motor have high starting current?
Why does induction motor have high starting current?
Last answer:
In induction motor , the flux produce is quadrature to the applied voltage. Since when we are going to start motor , there is no flux present inside . So in order to lets say compensate it ... times of current to further increase flux. So that is reason for high starting current in induction motor
induction
motor
high
starting
current
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115
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2
answers
asked
Jul 30, 2019
by
anonymous
Why earthing is essential in electrical installation ? Explain any one type of earthing.
Why earthing is essential in electrical installation ? Explain any one type of earthing.
Last answer:
Following reasons earthing is essential in electrical installation : 1. To provide an alternative path for the leakage current to flow towards earth. 2. To save human life from danger of electrical shock ... G.I. pipe of size 19mm and funnel for pouring the water in earth pit when required.
earthing
electrical
installation
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255
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1
answer
asked
Oct 5, 2017
by
anonymous
is efficiency of transformer is greater than electrical machine and why?
Last answer:
The efficiency of transformer is Greater than electrical Machine because there is no rotational losses in transformer and there is no air gap losses in transformer so losses is less in transformer compare to electrical machine so efficiency is higher in case of transformer.
transformer
efficiency
electrical
machines
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3
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107
views
3
answers
asked
Mar 10, 2018
by
anonymous
Why harmonics are generated in electrical system?
Why harmonics are generated in electrical system?
harmonics
generated
electrical
system
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55
views
0
answers
asked
Apr 28, 2018
by
anonymous
At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because
At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because (A) Of drive in diffusion of dopants & carriers. (B) Band to band transition dominates impurity ionization. (C) Impurity ionization dominates band to band transition. (D) Band to band transition is balanced by impurity ionisation.
Last answer:
At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because Impurity ionization dominates band to band transition.
high
temperatures
extrinsic
semiconductor
intrinsic
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293
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1
answer
asked
Mar 25, 2018
by
anonymous
Wire-wound resistors are unsuitable for use at high frequencies because they?
Wire-wound resistors are unsuitable for use at high frequencies because they?
Last answer:
Wire-wound resistors are unsuitable for use at high frequencies because they exhibit unwanted inductive and capacitive effects.
wire
wound
resistors
high
frequencies
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111
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1
answer
asked
Mar 21, 2018
by
anonymous
For measuring current at high frequency we should use?
Last answer:
For measuring current at high frequency we should use thermocouple instrument.
measuring
current
high
frequency
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85
views
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
views
1
answer
asked
Mar 25, 2018
by
anonymous
Silicon steel is used in electrical machines because it has?
Silicon steel is used in electrical machines because it has?
Last answer:
Silicon steel is used in electrical machines because it has low hysteresis loss.
silicon
steel
used
electrical
machines
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137
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1
answer
asked
Sep 5, 2018
by
anonymous
Why energy meter is integrating type measuring instrument?
Why energy meter is integrating type measuring instrument?
Last answer:
Energy Meter is Integrating Type Measuring Instrument: Energy meter is used for measurement of energy, which is obtained by integration (summation) of power supplied over the particular time duration, hence it the integrating type measuring instrument.
energy
meter
integrating
type
measuring
instrument
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65
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1
answer
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Aug 2, 2019
by
anonymous
What are the main electrical equipment used in HPS ? State the function of each parts of it in brief.
What are the main electrical equipment used in HPS ? State the function of each parts of it in brief.
Last answer:
Following Main Electrical Equipment used in HPS & their function: 1. Alternator 2. Exciter 3. Transformer 4. Switchgear Function : 1) Alternator:- Alternator is coupled to ... part from the healthy section. It contains circuit breaker, relays, switches and other control devices.
main
electrical
equipment
hps
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93
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1
answer
asked
Oct 30, 2017
by
Niloy
Which is the reason to electrical shock voltage/current?
Electrical shock happens for voltage/current?
Last answer:
The severity ofelectric shockdepends on thecurrentflowing through the body, which is a function of the electromotive force (E) involts, and the contact resistance (R) in ohms.
voltage
current
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54
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1
answer
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
Sep 22, 2018
by
anonymous
What is Time of Day tariff? How it help in energy conservation?
What is Time of Day tariff? How it help in energy conservation?
Last answer:
Time-off-day tariff:- In addition to basic tariff (Maximum Demand Tariff / KVA Maximum Demand Tariff / Load factor tariff /also the tariff in which P.F. of industrial consumer is taken ... the rated load for longer times of the day their overall efficiency gets higher helping to conserve energy.
time
day
tariff
energy
conservation
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1
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asked
4 days
ago
by
anonymous
Water is used in hot water bags because (1) It is easily obtained (2) It is cheaper and is not harmful (3) It has high specific heat (4) It is easy to heat water
Water is used in hot water bags because (1) It is easily obtained (2) It is cheaper and is not harmful (3) It has high specific heat (4) It is easy to heat water
Last answer:
It has high specific heat
physics
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1
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asked
3 days
ago
by
anonymous
Transformer is a device to convert (1) D.C. to A.C. (2) Low voltage D.C. into high voltage D.C. (3) Low voltage A.C. into high voltage A.C. (4) Mechanical energy into Electrical energy
Transformer is a device to convert (1) D.C. to A.C. (2) Low voltage D.C. into high voltage D.C. (3) Low voltage A.C. into high voltage A.C. (4) Mechanical energy into Electrical energy
Last answer:
Low voltage A.C. into high voltage A.C.
physics
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...