Electrical Lead-Through Plates for Hydrogen Gas-Cooled Generators

Generators provide energy by transforming kinetic energy from turbines into electrical energy. A byproduct of this process is heat, which results in the need for cooling the generator. This is especially so in the case of large power generators. One highly efficient cooling process for large power generators involves the use of Hydrogen (H2). This gas has very good heat removal properties when used as a coolant. However, it is also a highly explosive gas.

We provide safe flange-type electrical feedthroughs for instrumentation and control purpose, as well as thermocouple feedthroughs or combinations of both, to enable the productivity of energy facilities for many decades.

SCHOTT Eternaloc® lead-though plates for hydrogen gas-cooled generators consist mainly of:
  • A steel flange with nickel-iron conductors sealed in by means of compression-seal technique
  • standard electrical feedthroughs with 1 to 406 conductors, allow an optimized construction of the generator’s vessel
  • standard thermo-couple lead-through plates up to 121 thermo-couples
  • sealing between the lead-through plate and the generator, usually accomplished by an O-ring

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