Where does the excess electricity from diesel generators go?

TheĀ generatorĀ isĀ drivenĀ byĀ aĀ dieselĀ engine.Ā WhenĀ anĀ electricalĀ applianceĀ isĀ connected,Ā theĀ internalĀ coilĀ ofĀ theĀ generatorĀ andĀ theĀ externalĀ electricalĀ applianceĀ formĀ aĀ loop,Ā whichĀ willĀ generateĀ current.Ā WhenĀ thereĀ isĀ current,Ā electromagneticĀ forceĀ resistanceĀ torqueĀ willĀ beĀ generated,Ā andĀ energyĀ isĀ conserved.Ā ForĀ aĀ generatorĀ withĀ aĀ stableĀ speed,Ā moreĀ electromagneticĀ resistanceĀ doesĀ moreĀ work,Ā whichĀ meansĀ thatĀ theĀ resistanceĀ torqueĀ isĀ large.

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WhenĀ thereĀ isĀ noĀ electricalĀ appliance,Ā thereĀ isĀ noĀ currentĀ insideĀ theĀ generatorĀ coil,Ā andĀ theĀ coilĀ generatesĀ anĀ electromagneticĀ resistanceĀ torque.

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However,Ā theĀ bearingĀ andĀ beltĀ ofĀ theĀ generatorĀ willĀ haveĀ resistanceĀ torque,Ā whichĀ alsoĀ consumesĀ theĀ powerĀ ofĀ theĀ dieselĀ engine.Ā InĀ addition,Ā theĀ dieselĀ engineĀ itselfĀ isĀ aĀ four-stroke,Ā onlyĀ oneĀ ofĀ whichĀ isĀ aĀ powerĀ stroke,Ā andĀ itĀ alsoĀ requiresĀ fuelĀ consumptionĀ toĀ maintainĀ itsĀ idleĀ operation.Ā TheĀ efficiencyĀ ofĀ theĀ dieselĀ engineĀ asĀ aĀ heatĀ engineĀ ofĀ anĀ internalĀ combustionĀ engineĀ isĀ alsoĀ limited.

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WhenĀ theĀ generatorĀ powerĀ isĀ largeĀ andĀ theĀ consumerĀ powerĀ isĀ small,Ā theseĀ powerĀ lossesĀ mayĀ beĀ largerĀ thanĀ theĀ consumerĀ power.Ā DieselĀ engineĀ powerĀ isĀ difficultĀ toĀ makeĀ small,Ā soĀ theĀ minimumĀ powerĀ ofĀ dieselĀ generatorĀ isĀ aĀ fewĀ kilowatts.Ā ForĀ aĀ powerĀ toolĀ ofĀ severalĀ hundredĀ watts,Ā thisĀ loadĀ isĀ negligible.Ā TheĀ aboveĀ confirmsĀ whatĀ youĀ said,Ā withĀ orĀ withoutĀ electricalĀ appliances,Ā theĀ fuelĀ consumptionĀ isĀ similar.

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Generator

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