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Higher voltages allow for lower currents; electric power is measured in watts, which are calculated by volts multiplied by amps. The higher the voltage, the lower the amperage. This is important as a higher amperage requires a thicker cable; compare the cable on a car battery (12 volts at say, 50 amps, equalling 600 watts) to that on a vacuum cleaner (120 volts at 10 amps, or 1200 watts). The vacuum uses more power, but that power is transmitted through thinner wires, because the voltage is higher. It is the same with long-distance power transmission. Thinner wires are less expensive (they are made of aluminum braided over a steel cable for strength) and also weigh less, allowing the poles/pylons to be of lower strength. Also the losses would be reduced in high voltage transmission.
What else can I help you with?
The highest voltage for transmitting electrical power in India is?
400KV
How a transformer is so important?
Transformers transform low vvoltages to hivh and vice versa. This is important in transmitting electrical power form the high voltage power plant to the low voltage home voltage. Using high voltage transmission reduces transmission power losses, I2R.
Why are power lines high voltage and what are the advantages of transmitting electricity at high voltages?
Power lines are high voltage to reduce energy loss during transmission. Transmitting electricity at high voltages allows for more efficient long-distance transmission, reduces the amount of current needed, and minimizes heat loss, resulting in cost savings and increased reliability of the power grid.
What are the advantages of transmitting electrical power at high voltages?
For a given amount of power, the higher the voltage the lower the current. This is necessary to minimise the voltage drop along the transmission line, and to reduce energy losses which are proportional to current squared. The advantage of transmiting electrical power at high(er) voltages is that you can use smaller conductors, since the current flow would be less for the same amount of watts. Watts = Volts times Amperes
How electrical power is transmitted from power plan to the consumer?
electrical power from the power plant to consumer goes through the transmission & distribution system, first we transmit the high voltage power from the power plant to sub station in sub station we step down the voltage according to need & distribute it to the demand.
What are the advantages of transmitting electric power at high voltage levels?
For a given amount of power, the higher the voltage the lower the current. This is necessary to minimise the voltage drop along the transmission line, and to reduce energy losses which are proportional to current squared. The advantage of transmiting electrical power at high(er) voltages is that you can use smaller conductors, since the current flow would be less for the same amount of watts. Watts = Volts times Amperes
Why is the voltage level not constant in electrical power transmission?
Changes in load causes the load current to change, resulting in changes in voltage drop along conductors. This means that the 'receiving end' voltage will vary.
What is the difference between electrical engineering and electrical power engineering and what bachelors degrees that will allow me to get a masters degree in mechatronics engineering?
Electrical engineering is low voltage, logic circuits, communications etc. Power engineering is electrical transmission and the like.You want EE.
What is transmission of power?
it is basically the transportation of electrical power from the power generation plant (eskom) via step up voltage transformers to the substation (step down transformers. to the distribution of the consumers.
How are step-up transformers used in the transmission of electrical energy?
Step-up transformers are used in the transmission of electrical energy to increase the voltage of the electricity before it is sent over long distances through power lines. This higher voltage reduces energy loss during transmission, making the process more efficient and cost-effective.
Are transmission power cables capacity designed by voltage or by power is there any limit to the voltage that can pass?
Transmission power cables are designed by current carrying capacity.
Why is the voltage stepped up before transmission?
Voltage is stepped up before transmission in electrical power systems to reduce energy losses during long-distance transmission. According to Ohm's Law, power loss is proportional to the square of the current, so by increasing the voltage and reducing the current, the power loss can be minimized. Additionally, higher voltages allow for the use of thinner and lighter conductors, reducing material costs and making the transmission more efficient.
