For a given load, the higher the supply voltage, the lower the resulting load current. So, by transmitting electrical energy at very high voltages, the load current will be low enough to:
(1) reduce line voltage drops to managable levels
(2) allow the use of cables of practical sizes
(3) minimise line losses
Because AC allows the power to be transmitted over distance at high voltage and then transformed down for the users.
If you transmit at high voltage, you can send the same power at low current (P=VI), this is good because high current, means that you have high resistance and then you lose power to heat.
Alternating current (AC) is transmitted across large distances at high voltage to minimize power loss due to resistance in the transmission lines. By increasing the voltage, the current flow is reduced for the same amount of power transmitted, which significantly decreases the I²R losses (where I is current and R is resistance). This allows for more efficient long-distance energy transfer and reduces the need for additional infrastructure.
Once it has been generated by a nuclear power plant, nuclear power is transmitted through high voltage power lines, just like any other form of electric power.
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.
Energy is transferred from power stations to your home through the electrical grid. Power stations generate electricity, which is then transmitted at high voltage through power lines to substations. At the substations, the voltage is reduced for safe distribution to homes and businesses through power lines, eventually reaching your home through outlets.
Electricity generated at a power plant is transmitted through high-voltage power lines to substations. At the substations, the voltage is reduced for distribution to homes through local power lines. The electricity enters your home through the meter and electrical panel.
A transformer is used to step up (increase) or step down (decrease) an alternating voltage with very little loss of energy.
Because wires are not perfect conductors, energy is released as heat. This is why electricity is transmitted at very high voltage and low current to reduce energy loss.
After generating electricity at a hydroelectric power plant, the electricity is transmitted through high-voltage power lines to substations. Transformers then lower the voltage for distribution through power lines to homes and businesses. The electricity finally enters homes through the electrical wiring to power appliances and devices.
Electricity can be transmitted through air using high voltage power lines. When electricity flows through these lines, it creates an electric field that allows the energy to travel through the air to its destination.
The primary reason that power is transmitted at high voltages is to increase efficiency. ... The higher the voltage, the lower the current. The lower the current, the lower the resistance losses in the conductors. And when resistance losses are low, energy losses are low also.