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Voltage is increased while transmission of power because it yield less losses due to the current carried by the line conductors.
Losses = I*I*R, where I is current and R is resistance of line
Higher the voltage lower the current because the power remains the same.
But, after certain limits you cannot increase the voltage further due to technical limitations like designing of Transformers and the clearance between phase of transmission line and line to ground etc.
AnswerFor any given load, the higher the supply voltage, the lower the resulting load current. This enables conductors with relatively small diameters to be used. Using low voltages would prohibit the use of reasonable-sized conductors. This it the primary reason for using high transmission voltages. Line losses, as described above, are a secondary reason.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoCurrent will decrease for the same amount of power transmitted at a higher voltage compared to a lower voltage. Also, the power losses in the transmission line will decrease due to the reduced current.
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Is transmission voltage a phase to phase voltage or a phase to ground voltage?
Phase to Phase voltageCorrection to the above answer:There is no such thing as a 'phase-to-phase' or 'phase-to-ground' voltage. The correct terms are 'line-to-line' (or 'line voltage') and 'line-to-ground' (or 'phase voltage'). Transmission-line voltages are line-to-line (or 'line') voltages.
What happens to the brightness of a bulb if the volts are increased?
The electrical potential energy increases as the voltage is increased. It further excites the filament in the bulb more than a lessor voltage would. Using good old ohm's law (Voltage = Current x Resistance), a larger voltage applied to a bulb at the same resistance increases the current proportionally and larger currents has the effect to cause higher temps in conductors
Why are transformers used for transmission of electricity into your home?
The voltage provided by power company are higher what your home uses so transformers step down the voltage for your house. Higher voltages in your home would cause a potential safety hazard. The higher voltages on transmission lines are used to cope with voltage drops over long distances.
How does ZnO varistor work?
A varistor is essentially a transient voltage suppressor or a surge protector. They are used in a number of devices that need a consistent voltage across the system for reliable operation. In the power industry, varistors are used in high voltage transmission systems to protect the grid from line surges caused by things like lightning strikes. Varistors are variable resistors that act as a shunt, allowing the flow of current under normal voltage but restricting current flow at or above the clamping voltage-the voltage required to trigger the sintering of the varistors zinc oxide and ceramic matrix. Varistors are vital in all electrical transmission applications, but new and better varistors are needed to protect extremely high voltage systems from line surges. Varistor technology is one of the limiting agents on the maximum voltage of high voltage transmission systems. Using zinc-oxide nanoparticles in the varistor matrix will produce varistors with better performance characteristics, ultimately increasing reliability, more efficient transmission technologies and smaller vasristors. This technology will aid in the development of super high voltage transmission networks that operate at voltages as high as 1500kV while still maintaining grid stability.
What is the Use of distribution transformer?
A transmission transformer steps the voltage up to a very high value so electricity can travel long distances on transmission lines from the power plant to a city or area with low loss. A distribution transformer steps the high voltage back down to a level that can be used for local distribution and use by businesses and homes.
Why is the alternating current voltage increased?
In order to be transmitted long distances, voltage is raised. At the destination, voltage is lowered again to be used. This permits transmission for several miles, which wold not be possible at lower voltages.
How in transmission line current decreases when voltage is increased?
Because power is power. If you maintain the same power, while increasing the voltage, you must decrease current. P=IE.
What are the two basic categories of transmission?
The two basic categories of transmission are:High voltage transmission andLow voltage transmission.
Does electric current increases as voltage increases?
Electrical current generally increases as voltage increases due to a need for increased capacity. This is directly controlled from the transmission side but varies based on the overall load.
Does electrical current increase as voltage increases?
Electrical current generally increases as voltage increases due to a need for increased capacity. This is directly controlled from the transmission side but varies based on the overall load.
When coil turns are increased the?
Induced voltage is increased
What is the largest transmission voltage for WECC?
The highest transmission voltage in the Western Interconnection (2011) is 500kv.
Will current increase if the voltage in a circuit is increased?
Ohm's Law states Voltage = Current x Resistance. Hence if voltage is increased and resistance is constant, current will increase proportionally to the rise in voltage.
What is the reason for ferranti effect?
Ferranti Effect causes the receiving end voltage to be more than the sending end voltage. It occurs mainly in long transmission lines when they are lightly loaded. In this condition, the inductance of the lines becomes more resulting in increased receiving end voltage.
Where is the highest transmission voltage in India?
the highest transmission volatage in India is 765kV ac. The highest voltage in the case of DC transmission is +/- 600 kV.
Why kilo watts converted in kilo volts during transmission?
Power transmission lines by their nature have to carry power long distances. Since there is a voltage drop involved, the voltage is increased at the source so that the loss in the transmission lines still allow usable power to be delivered at the user location. The higher voltage is reduced by a transformer near your home to the standard 120 to 240 VAC.CommentYour question doesn't actually make any sense. Kilowatts aren't converted to kilovolts during transmission!
Why are transformers used to increase the voltage before transmission?
Using a higher voltage reduces power losses during transmission.
