Fault gas detection system for a liquid filled high voltage transformer
AssigneeSiemens Gamesa Renewable Energy A/S
InventorLeif Nielsen
Life of this patent
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Abstract
A fault gas detection system for a liquid filled high voltage transformer, the transformer including a main tank and an expansion tank the tanks fluidic connected by an exchange conduit such that gas and/or a transformer liquid is able to exchange between the tanks, the gas detection system including: a chamber with a top cover, a predefined horizontal level-plane in the chamber defining a maximum liquid level of a transformer liquid in the chamber during use, a fluid-channel including a fluid-egress at a level equal to or higher than the top cover and a fluid-ingress lower than the level of the level-plane, a level sensor designed to measuring and/or indicating a liquid level. A respective transformer and a respective wind turbine system is also provided.
Claims11
A fault gas detection system for a liquid filled high voltage transformer, the transformer comprising a main tank and an expansion tank, the main tank and the expansion tank being fluidically connected by an exchange conduit such that a gas and/or a transformer liquid is able to exchange between the main tank and the expansion tank, the gas detection system comprising:
- a chamber with a top cover, wherein the chamber:
- a) is the main tank and the top cover is a top lid of the main tank, or
- b) is arranged in the expansion tank and the top cover is an intermediate ceiling in the expansion tank below an exhaust opening to an environment;
- a predefined horizontal level-plane in the chamber defining a maximum liquid level of the transformer liquid in the chamber during use;
- a fluid-channel comprising a fluid-egress at a level equal to or higher than the top cover and a fluid-ingress lower than the level of the level-plane;
- and
- a level sensor designed for measuring and/or indicating a liquid level in the chamber.
Dependencies are inferred from the claim text.