Why high voltage can reduce power loss?

asked Mar 10, 2018 by anonymous

Why high voltage can reduce power loss?

2.5k views

Please log in or register to answer this question.

1 Answer

answered Jul 31, 2018 by anonymous

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.

← Prev Question Next Question →

Related questions

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.

0 like 0 dislike

5.2k views 2 answers

asked Mar 10, 2018 by anonymous

Why high voltage test is done?

Why high voltage test is done?

0 like 0 dislike

52 views 0 answers

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.

0 like 0 dislike

138 views 1 answer

asked Mar 10, 2018 by anonymous

How can power loss be reduced?

How can power loss be reduced?

0 like 0 dislike

61 views 0 answers

asked May 1, 2018 by anonymous

An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of

An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is (1) 141 (2) 92.3 (3) 9.23 (4) 1.41

Last answer: An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is 9.23

0 like 0 dislike

159 views 1 answer

asked Mar 10, 2018 by anonymous

How do you calculate power loss?

How do you calculate power loss?

0 like 0 dislike

55 views 0 answers

asked Mar 10, 2018 by anonymous

What is Extra High Voltage?

What is Extra High Voltage?

0 like 0 dislike

62 views 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

0 like 0 dislike

3.1k views 1 answer

asked Mar 10, 2018 by anonymous

What is a high voltage test?

What is a high voltage test?

0 like 0 dislike

50 views 0 answers

asked Mar 10, 2018 by anonymous

What is considered low voltage and high voltage?

What is considered low voltage and high voltage?

0 like 0 dislike

59 views 0 answers

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.

0 like 0 dislike

68 views 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

0 like 0 dislike

116 views 1 answer

asked Mar 25, 2018 by anonymous

In a circuit containing R, L and C, power loss can take place in?

In a circuit containing R, L and C, power loss can take place in?

Last answer: In a circuit containing R, L and C, power loss can take place in R only.

0 like 0 dislike

268 views 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.

0 like 0 dislike

24 views 1 answer

asked Mar 21, 2018 by anonymous

If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is?

Last answer: If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is 10°.

0 like 0 dislike

110 views 1 answer

asked Mar 20, 2018 by anonymous

The power loss is an important factor for the design of?

Last answer: The power loss is an important factor for the design of transmission line.

0 like 0 dislike

82 views 1 answer

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

0 like 0 dislike

86 views 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

0 like 0 dislike

82 views 1 answer

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.

0 like 0 dislike

238 views 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

0 like 0 dislike

92 views 1 answer

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.

0 like 0 dislike

83 views 1 answer

asked Apr 28, 2018 by anonymous

In voltage source converter based HVDC transmission system the active power is controlled by changing

In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

Last answer: In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage

0 like 0 dislike

99 views 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.

0 like 0 dislike

91 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.

0 like 0 dislike

64 views 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.

0 like 0 dislike

96 views 1 answer

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

0 like 0 dislike

70 views 2 answers

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

0 like 0 dislike

76 views 2 answers

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.

2 like 0 dislike

755 views 1 answer

asked Mar 17, 2018 by anonymous

The magnetic factor required to reduce the residual magnetization zero is called?

The magnetic factor required to reduce the residual magnetization zero is called?

0 like 0 dislike

64 views 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

0 like 0 dislike

99 views 1 answer

asked Mar 10, 2018 by anonymous

Why does increase in current mean a decrease in voltage?

Why does increase in current mean a decrease in voltage?

Last answer: This is because current flows from high potential to low potential to bring the two diffrent potential to unity , thus a reduced potential (voltage)

0 like 0 dislike

145 views 1 answer

asked Mar 21, 2020 by anonymous

Find power delivered by voltage source

Last answer: Find power delivered by voltage source

1 like 1 dislike

40 views 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.

0 like 0 dislike

5.0k views 1 answer

asked Jun 18, 2018 by anonymous

An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to

An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when A) ZL = R B) ZL = jXS C) ZL = R-jXS D) ZL = R+jXS

Last answer: An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when ZL = R-jXS

0 like 0 dislike

2.6k views 1 answer

asked Apr 30, 2018 by anonymous

A transformer has negative voltage regulation when its load power factor is

A transformer has negative voltage regulation when its load power factor is (1) Zero (2) Unity (3) Leading (4) Lagging

Last answer: Leading

0 like 0 dislike

1.1k views 2 answers

asked Apr 27, 2018 by anonymous

For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is

For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is

Last answer: For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is 25 x 25

0 like 0 dislike

1.8k views 1 answer

asked Mar 20, 2018 by anonymous

The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is?

Last answer: The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5.

0 like 0 dislike

146 views 1 answer

asked Mar 19, 2018 by anonymous

Minimum voltage regulation occurs when the power factor of the load is?

Minimum voltage regulation occurs when the power factor of the load is?

Last answer: Minimum voltage regulation occurs when the power factor of the load is leading.

0 like 0 dislike

117 views 1 answer

asked Mar 18, 2018 by anonymous

In an alternator at lagging power factor the generated voltage per phase as compared to that at unity power factor?

In an alternator at lagging power factor the generated voltage per phase as compared to that at unity power factor?

Last answer: In an alternator, at lagging power factor the generated voltage per phase as compared to that at unity power factor must be more than terminal voltage.

0 like 0 dislike

211 views 1 answer

asked Oct 21, 2017 by anonymous

If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?

If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?

Last answer: 128 volts ,2048 watts

3 like 0 dislike

110 views 2 answers

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

0 like 0 dislike

95 views 1 answer

asked Mar 19, 2018 by anonymous

Iron loss of a transformer can be measured by?

Last answer: Iron loss of a transformer can be measured by low power factor wattmeter.

0 like 0 dislike

63 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?

0 like 0 dislike

64 views 0 answers

asked Mar 15, 2018 by anonymous

Why high starting torque is required?

Why high starting torque is required?

0 like 0 dislike

51 views 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

0 like 0 dislike

115 views 2 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.

3 like 0 dislike

118 views 2 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.

1 like 0 dislike

98 views 1 answer

asked Apr 28, 2018 by anonymous

A Unified Power Flow Controller (FACTS controller) is a voltage source converter based

A Unified Power Flow Controller (FACTS controller) is a voltage source converter based (A) Inter-phase power controller (B) Static Compensator (C) Combination of series and shunt compensators (D) Solid-state series compensator

Last answer: A Unified Power Flow Controller (FACTS controller) is a voltage source converter based Combination of series and shunt compensators

0 like 0 dislike

82 views 1 answer

asked Jun 18, 2018 by anonymous

An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak

An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

Last answer: An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

0 like 0 dislike

210 views 1 answer

asked Jun 18, 2018 by anonymous

Which of the following thyristors can be used for high frequency of operation?

Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO

Last answer: Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO

0 like 0 dislike

81 views 1 answer

...