Hydrogen Cooled Generators

Monitoring the humidity and temperature of hydrogen cooled generators to achieve the best yield

Dry hydrogen is used to cool electric generators because of its high thermal conductivity and low viscosity. An increase in the level of moisture in the hydrogen may lead to a decrease in cooling efficiency, a reduction in insulation capability and corrosion of generator parts with the worst outcome being a total breakdown of the generator.

Vaisala’s intrinsically safe HMT360 humidity and temperature transmitter series is ideal for monitoring dryer performance. The sensor can be installed directly into a pressurised pipeline and provides measurements that show if dry hydrogen is being fed into the generator.

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