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ELECTRICITY, image ELECTRIC METER, image SUPPLY OF POWER TO A HOUSE -…
ELECTRICITY
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Neutral and earth wires are connected together at the local substation to make the potential of the earth wire and a neutral wire equal
D.C. voltage can neither be increased nor decreased by any device. This is the reason why D.C. power is not used in household
A.C. voltage is up by using a step up transformer while it is lowered down by a step down transformer
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To connect the cable from pole to the meter in a house, first a fuse of high rating is connected in the live wire. The fuse is called the company fuse/pole fuse
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After the company fuse the cable is connected to an electric meter and from the meter the connections are made to the distribution board through a main fuse and a main switch.
The main fuse is connected to the live wire , while the main switch is connected to the live and neutral wires
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1 kilowatt hour is the amount of energy consumed when an electrical appliance of power 1 kilowatt is used for 1 hour
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Electric meter measures the amount of electric energy consumed by the consumer in the unit kWh for which the bill is payed
ELECTRIC METER
SUPPLY OF POWER TO A HOUSE