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700 Billion volts
AnswerFirst of all, power is expressed in watts, not in volts! Your answer cannot be answered in any straightforward way, because it depends upon too many variables. For example: At what voltage is the transmission line operating? What is the current-rating of its conductors? How many conductors comprise each line? Etc.
What else can I help you with?
Why earthing power transmission line?
It is necessary because lightning can destroy whole phase conductors. Lightning has energy of 1MHp. So much high energy if falls on transmission line will not even destroy it but all of the distribution systems too. The reason that lightning falls on tower is that it always chosses the shortest path.
How much load does a 2X6X12' carry?
2x6x12 load
Why is a sag provided in the transmission line?
Sag is provided in transmission lines in order to lessen the tension of the transmission lines. Sag literally means to be bend in shape. In overhead transmission lines , the difference in level between points of supports (towers or utility poles) and the lowest point on the conductor is called a sag. Explanation: While erecting an overhead line, it is very important that the conductors are under safe tension. If the conductors are too much stressed between the supports ( towers, utility poles), then the stress on the conductors may reach to an unsafe level and the conductor may break due to excessive pressure ( i,e tension). in order to permit safe tension in the conductors, the conductors ( i.e the transmission lines) are not fully stretched but are allowed to have a dip or a sag.
Why is ac more useful then DC?
Firstly, AC is not always used for transmission rather than DC, DC transmission is becoming a frequently useful form of transmission and has several advantages in certain circumstances. Though the reason AC is used more than DC is as follows: Firstly, the output of power stations comes from a rotary turbine, which by it's nature is AC and therefore requires no power electronics to convert to DC. Secondly it is much easier to change the voltage of AC electricity for transmission and distribution. thirdly the cost of plant associated with AC transmission (circuit breakers, transformers etc) is much lower than the equivalent of DC transmission AC transmission provides a number of technical advantages. When a fault on the network occurs, a large fault current occurs. In an AC system this becomes much easier to interrupt, as the sine wave current will naturally tend to zero at some point making the current easier to interrupt. It is also easier to meter AC connections, to monitor power flows accross a network. DC transmission however, is used to link two completely different AC systems. An AC link would require the two systems to be entirely in sync, with the peaks and troughs of the AC wave to occur at the same time. With a DC transmission link, this can be negated allowing the link of, for example, the UK and European transmission network. (See National Grid website for information on the HVDC England - France connector) We can make a d.c transmission plant like a.c because we can't get uninterrupted power supply like a.c .after a certain time d.c source (battery) need charge for recharging it self .
Why does the national grid use different voltages?
When transferring power over distance, the designer of the power line selects a voltage that optimizes the amount of power that is transferred, ie, minimizes the amount of power that is lost. There are tradeoffs in the selection of a voltage for a transmission line, as there are in almost any aspect of design. Too low a voltage (which requires a higher current) results in increased resistive losses in the lines, or you have to use heaver wire, which increases costs, not just of the wire, but of the stronger towers needed to support the wire. Too high a voltage leads to corona discharge losses and losses due to capacitance between lines and lines to ground. In addition, an AC voltage can be easily changed from one voltage to another with very small loss in power. So bottom line, each distribution line has a voltage selected to be optimum for that line. Connections between lines of different voltages are easily done via transformers.wire has inherent resistance. Power lost in this resistance is equivalent to P = I*I*R, where I is the current. Reducing the amount of current will reduce the inherent losses due to transporting power long distances. Power is equivalent to P = V*I; So, if we reduce the current, we must increase the voltage to maintain the same amount of power.Simply put, it is much more efficient. There is less loss transmitting the same amount of power down a line using high voltage rather than a lower voltage. Let's look and see why. Consider that the transmission lines have resistive properties (in ohms/foot). These represent a fixed loss; we can't get around them. We start with Ohm's Law: V=IR, and the definition of Power: P=VI. Substituting IR for V, we see that P=I²R. What this tells us is that the amount of power lost in the lines is equal to the square of the current flowing through the lines, times the resistance of the lines. The amount of power transmitted is constant, and the resistance in the lines is constant. So, if we double the voltage, the current is cut in half, and the losses are cut in quarter. The simple mathematics drives (dictates) that we use as high a voltage as is practical to transmit power over long lines to minimize the loss.
How much power can a transmission line carry example how much power can a 69kv line carry compared to a 390kv line what is the formula for power capacity of a hvac line?
For a line of given cross section and material, the power capacity will depend on the current carried, since resistance heating is proportional to (current)2 . For a given power, current is inversely proportional to voltage. Thus raising the voltage from 69 to 390 kv would reduce the current by a factor 69/390 = 0.177 , for the same power transmission, and reduce the heating losses by 0.1772 = 0.031. So you can see why high voltage for long distance lines is essential. Obviously the limiting current on a power line has to be set by economic and practical considerations, but if this is predetermined and set, the limiting power will be that which produces that limiting current, and power = voltage x current. The actual limiting curent will depend on the line cross section, material, and length. The power that a line of a certain voltage can carry is calculated by using the following formula: (2.55×(KV)2 /1000) MW.
What is the purpose of line trap?
A line trap is a set of physically-large inductors often seen hanging from transmission towers at the end of a high-voltage transmission line, where the line terminates at a substation. As transmission lines often carry data signals, which operate at frequencies very much higher than the 50-Hz (or 60-Hz) power frequency, the high inductive reactance* of the line traps act to prevent these signals from continuing beyond the end of that section of transmission line, while having an insignificant effect on the power-frequency load current.(*Inductive reactance is directly proportional to frequency)
How do you replace Impala transmission line?
how much to replace the transmission line in 2006 Chevy impala
How much horse power does a 1995 Pontiac sunfire manual transmission have?
Horse power is a rating on the motor, it has nothing to do with the transmission.
Can you use power steering fluid in your transmission 87 Ford?
There is not much difference between power steering and transmission fluid. Many people use power steering in place of transmission fluid because it is cheaper.
Why earthing power transmission line?
It is necessary because lightning can destroy whole phase conductors. Lightning has energy of 1MHp. So much high energy if falls on transmission line will not even destroy it but all of the distribution systems too. The reason that lightning falls on tower is that it always chosses the shortest path.
How much transmission fluid does a 2003 dodge neon hold?
Just had to fill my Transmission after blowing a line it took 5 Quarts
What is the difference between electrical load and line, and how do they impact the overall power distribution system?
Electrical load refers to the amount of power consumed by devices connected to the system, while electrical line refers to the physical wires that carry the electricity. The load determines how much power is needed, while the lines deliver that power. Balancing the load and line is crucial for a stable power distribution system to prevent overloading or underutilization of the system, which can lead to outages or inefficiencies.
What to do if you add too much transmission oil in your transmission?
Drain some out, either by removing the pan, or by disconnecting the line to the rad and running it in Park.
How much does it cost to replace a transmission line?
if you want to do it yourself,price of line ,if you let someone else do it probably 75.00 to 100.00
How much horse power does a Corvette have?
Depends on the year, engine, transmission, etc...
To reduce power losses in transmission lines the voltage is made?
Much higher.
