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Can the JMeter master also be a load generator?

Why does a radiator fan cause an increase in amps or load on a generator?

  • The radiator fan is on the opposite end of the generator, on the shaft that spins, at first i thought more load/ more current is produced, but then i doubted myself because the generator if not electricity powered but diesel powered. Now am confused why i see a slight drop in load/Amps when i disconnect the radiator fan from the axil

  • Answer:

    well rex,as the fan is sitting on the shaft of the generator,its spinning. that means there are mechanical losses induced in the generator due to the air opposing the fan and also due to frictional losses on the shaft of the generator.this means u have added a load on the generator so as u remove the fan frictional losses are substracted from the output generated by the generator hence there is a decrease in the load current as u remove the fan.u see more current is provided by the generator as the load increases,thats why u get max efficiency at full load,because more current is generated at full load.

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Autos that I am familiar with have the radiator fan on it's own motor, not on a shaft with the generator, so that the fan can be turned on/off with it's own thermostat. In your case, I can't see any reason for the change, given that the fan is totally mechanically driven. .

billrussell42

Simply put, the fan doesn't add load to the generator but rather to the driver of the generator. It is being transmitted along the generator shaft.

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