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CAT NO: DIDACTICNLE-Export-049002
Model Of A High Voltage Long Distance Line For Electrical Lab Training.
Principle
When
electrical energy is transmitted over long distances, it is unavoidable
that there will be losses due to resistance in the lines. Using
transformer stations and high-voltage transmission lines can drastically
reduce such losses. To model such lines, two wires of 1 m in length and
total resistance of 100 ohms are connected to a 6-V/0.5-A light
bulb and an AC voltage of 6 V is transmitted along them. Under these
circumstances the lamp does not light. However, if two step transformers
are set-up as transformer stations to increase the voltage in the
simulated transmission lines to 1000 V and then convert it back down to 6
V immediately before the lamp, the lamp will light up with its normal
brightness.
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