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Simplistically Power is Voltage times Current. Sending at domestic voltage requires much more current to be sent for the same power and therefore much thicker wires, heavier equipment and more repeater Transformers as over distance the resistance of the wires and switches would cause the voltage to fall quickly below domestic. For the same power delivery, sending at higher voltages requires less current, lighter wires, and voltage losses over distance are more easily managed so much less equipment is required.

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Difference between watt and volt-amperes?

Although we can't necessarily see electricity, we can measure it by its effects. An ampere, or amp, represents the amount of current in a circuit. Voltage is defined scientifically as the circuit's "potential difference," and can be seen as the amount of "pressure" that drives electricity in a circuit. Watts are a measure of the use of electrical power, and one watt is equal to one volt multiplied by one amp.Additional AnswerThe watt is used to measure an AC circuit's true power, whereas a volt ampere is used to measure the circuit's apparent power.Apparent power is the product of current and voltage, whereas true power is the product of current, voltage, and power factor.The true power of an AC circuit is measured using a wattmeter, whereas the apparent power is the product of current and voltage.


Internal regulator circuit?

An internal regulator circuit is a component within a device that regulates and maintains a stable voltage output. It ensures that the voltage supplied to other components remains within specified limits, preventing damage that could occur from voltage fluctuations. Internal regulator circuits are commonly used in electronic devices such as computers, smartphones, and power supplies.


How will you measure a three phase electric supply?

It really depends on what you mean by 'measure' -that is, what quantity you wish to measure: voltage, current, power, or energy. It also depends on whether the load being supplied is balanced (i.e. having identical phases) or unbalanced. It also depends on whether you wish (in the case of voltage and current) whether you wish to measure line quantities or phase quantities. So, as you can see, you really require quite a complex answer!The three energised ('hot') conductors that connect a three-phase supply to its load are called 'lines' and the fourth conductor (if present) is called a 'neutral'. 'Phases' are connected either between lines, or between individual lines and the neutral, depending on whether the loads are connected in delta (three-wire systems) or star(four-wire systems).(Beware that some writers confuse 'lines' and 'phases', calling line conductors 'phase' conductors; you must always use the correct terminology!)As the line voltages (voltage between lines) are determined by the supply, they are always equal -so to measure the line voltage, only one voltmeter is needed, and it can be connected between any two lines. For a balanced load, all three line currents are equal, so only one ammeter is needed, and it can be connected in series with any one of the individual lines. For an unbalanced load, the line currents are different, so you need to connect three, separate, ammeters, each in series with a line.To measure power for a balanced, or unbalanced, load, you can use one less wattmeter than there are conductors supplying the load. So for a three-wire system, you can use two wattmeters but, for a four-wire system, you must use three wattmeters. You will need to check out the internet to find a schematic diagram for these connections: search for 'three-wattmeter method', and 'two-wattmeter method'.Energy meters follow the same connections as the wattmeter methods, but usually comprise a single instrument, rather than individual instruments so, again, you'll need to do an internet search for their wiring diagrams.


What is a real world application of Euler's formula?

Eulers can be used whenever ur bulding something n u need 2 know how the edges r going 2 be or wats the verticles n how many faces it has then ull be able 2 use it 2 help u figure it out n also if ur walking down the streets n ur wondering how many eges r there in the stairwall then ull know quiet easly!


What is a number to the 0th power?

a number to the power of 0 is one. Observe below: 10 to the power 5 = 100000 10 to the power 4= 10000 10 to the power 3 = 1000 10 to the power 2= 100 10 to the power 1 = 10 10 to the power 0 = 1 ______________ Same conclusion, different view: Any real number (other than zero) to the 0th power equals 1 (one). This is related to the subtraction of exponents being equivalent to division. 10 to the 7th power divided by 10 to the 4th power equals 10 to the 3rd power; you subtract exponents. 10 to the 7th power divided by 10 to the 7th power would of course equal 1, and if you subtract exponents you would have 10 to the 0th power.

Related Questions

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 is the relationship between the voltage in a ring transformer and its functionality in an electrical system?

The voltage in a ring transformer directly affects its ability to efficiently transfer electrical power in an electrical system. Higher voltage allows for more power to be transmitted over longer distances with less energy loss. Conversely, lower voltage may limit the transformer's capacity and efficiency in the system.


How is energy transferred from power stations to your home?

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.


What happens to the electrical energy when power is transmitted through long distances?

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.


How does electricity get from a power plant to your home?

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.


Will the power consumed by an electrical appliance increase with a reduction of applied voltage?

Power consumed by an electrical appliance will increase with a reduction of applied voltage.


How does the hydroelectric power get to your homes?

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.


What is the relationship between power and voltage in an electrical circuit?

In an electrical circuit, power is directly proportional to voltage. This means that as voltage increases, power also increases, and vice versa. The relationship between power and voltage can be mathematically expressed as P V x I, where P is power, V is voltage, and I is current.


What power voltage is used in the USA for electrical appliances and devices?

The power voltage used in the USA for electrical appliances and devices is typically 120 volts.


What is the purpose of a step-up transformer in electrical systems?

A step-up transformer is used in electrical systems to increase the voltage of the electricity being transmitted. This is done to reduce energy loss during long-distance transmission and to efficiently distribute power to areas that require higher voltage levels.


What is electrical fore proportional to?

In a direct current (DC) circuit, electrical power is proportional to both voltage and current according to the equation P = V * I, where P is power, V is voltage, and I is current. This relationship dictates that as either voltage or current increases, electrical power will also increase.


What is the electrical voltage are supplied by the power supply on your system?

The electric voltage are energy to my system.