0
Why is the voltage drop large in a high voltage transmission line?
Wiki User
∙ 12y ago
The length of the wire causes resistive load to be distributed along line. This accumulated resistance causes the voltage drop.
AnswerThe voltage drop along a high-voltage transmission line isn't large in relation to the operating voltage of the line. One of the advantages (there are many) of using high voltages is that, for a given load, the line current is relatively low -so the voltage drop along the line is also relatively low.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe voltage drop along high-voltage lines is notparticularly high. National statutory regulations specify the permissible voltage variations. In the UK, for example, for 132 kV and above, a variation of 10% is permitted, while for 132 kV and below, the permitted variation is just 6%.
One of the advantages of using high-voltage is that, for a given load, the resulting load current will be relatively low, and this (amongst other things) will result in a relatively-low voltage drop along the line.
Add your answer:
Earn +20 pts
Why is high voltage a plus?
its because of transformers . they work with pulse
What are the advantages of 750Kv high voltage?
A high voltage like 750kV is used in transmission lines because this reduces the current in the wires for a given amount of power. A reduced current will reduce the power lost in transmission (I^2R).CommentFar more importantly than reducing line losses, it reduces the voltage drop along the line which would, otherwise, be enormous!
Why do high tension transmission wires carry electricity at high voltages?
For a given load, the higher the supply voltage, the lower the resulting load current. So, using high voltages reduce the load current which, in turn:minimise voltage drop along the line (which, at low voltages, would otherwise be enormous, rendering transmission of energy impossible).enable conductors of practical size.reduce line losses.
How to reduce voltage drop during long transmission of power?
You reduce voltage drop by increasing conductor size. As a general rule, if you believe you have a voltage drop problem, install the next size larger conductor.Voltage drop can be calculated using the formula E=IR, where I is the anticipated current required by the load, R is the resistance of the conductor, and E is voltage, or in this case is voltage drop. If the answer for E is more than 3% of the circuit voltage or 5% of the service voltage, you need to increase conductor size.AnswerBy increasing the supply voltage of the transmission line. This is why very high voltages are used in electrical transmission systems.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
How can measure the voltage only seeing the insulators in a high voltage transmission lines?
i think 11kv per insulator
What is voltage drop per foot?
Voltage drop is caused by resistance. From the equation V=IR the voltage across that resistance can be calculated. For a uniform conductor the resistance is linear with the length R=kx where k is in ohms per foot. For a given current, the voltage drop V=Ikx so the voltage drop per foot is Ik. Voltage drop per foot can be measured, allowing a calculation of voltage drop for very long lengths of conductor such as power transmission lines. This is a reasonable approximation as long as the total voltage drop in transmission is small relative to the supply voltage. If the voltage drop is large, the current will be limited by the total resistance. This implies that long distance transmission lines should be high voltage, because 1 megawatt at 10,000 volts requires 100 amps, while at 100,000 volts it only requires 10 amps. The voltage drop per foot for the same conductor would be 10 times as large at 10 times the current, and the power loss (I*IR) would be 100 times as large. For alternating current, inductance can be a factor; this implies that relatively low frequency would be preferred.
Why is high voltage a plus?
its because of transformers . they work with pulse
What does inductive load effect on High Voltage transmission line?
the inductive load which is generally use in high voltage transmission line known as transformer. the transformer transform the high voltage to low voltage.
What are the advantage of high transmission voltage?
Power houses uses high transmission voltage to supply places that are far away from the generation site. When in regards to distance the voltage is primary and the higher the voltage the greater the travel (using appropriate cable sizes etc). This voltage will suffer some loss during trans missioni but will arrive at its destination with a voltage drop that will not greatly affect the point of demand. keep in mind that this transmission is usually converted to Low voltage via a transformer before it is distributed to the end user. Hope that helped:-)
High voltage transmission line in India?
ge transmission in india
What are the advantages of 750Kv high voltage?
A high voltage like 750kV is used in transmission lines because this reduces the current in the wires for a given amount of power. A reduced current will reduce the power lost in transmission (I^2R).CommentFar more importantly than reducing line losses, it reduces the voltage drop along the line which would, otherwise, be enormous!
What would cause high voltage drop readings?
High resistance on the feeder to the load will cause voltage drop at the load end of the circuit. If this is happening, do the calculations for voltage drop, using the amperage of the load, voltage of the load, the size of the wire feeding the load and the distance from the distribution panel to the load.
Long distance transmission of electricity requires what?
High voltage.
Why do high tension transmission wires carry electricity at high voltages?
For a given load, the higher the supply voltage, the lower the resulting load current. So, using high voltages reduce the load current which, in turn:minimise voltage drop along the line (which, at low voltages, would otherwise be enormous, rendering transmission of energy impossible).enable conductors of practical size.reduce line losses.
What is distance protection in high voltage transmission lines?
your mothers gash
Why transmission is done on 11kv and 33kv?
High voltage reduces the amount of energy wasted in transmission lines.
How to reduce voltage drop during long transmission of power?
You reduce voltage drop by increasing conductor size. As a general rule, if you believe you have a voltage drop problem, install the next size larger conductor.Voltage drop can be calculated using the formula E=IR, where I is the anticipated current required by the load, R is the resistance of the conductor, and E is voltage, or in this case is voltage drop. If the answer for E is more than 3% of the circuit voltage or 5% of the service voltage, you need to increase conductor size.AnswerBy increasing the supply voltage of the transmission line. This is why very high voltages are used in electrical transmission systems.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
