Insulation fluid heating apparatus and method
AssigneeABB Power Grids Switzerland AG
InventorsJavier Mantilla, Oliver Cossalter, Peter Stengard
Life of this patent
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Abstract
An apparatus for heating an insulation fluid in a medium-voltage or high-voltage switchgear comprises an infrared source which is adapted to emit infrared radiation of at least one wavelength. Thus, at least one vibrational or rotational mode of at least one component of the insulation fluid is excited by absorption of at least a part of the infrared radiation, and condensation of the insulation fluid is efficiently prevented by this direct heating of the insulation fluid. A closed loop temperature regulator is used to heat only when required. A circulator in a heating chamber further provides for a mixing of the insulation fluid, thus preventing steep temperature gradients.
Claims20
An apparatus for heating an insulation fluid in a medium-voltage or high-voltage switchgear, wherein the insulation fluid comprises at least one component, the apparatus comprising:
- a compartment for holding the insulation fluid, and
- an infrared source adapted to emit infrared radiation of at least one wavelength for excitation of at least one vibrational or rotational mode of the at least one component of the insulation fluid, wherein the apparatus is structured such that at least a part of the infrared radiation interacts with the insulation fluid and excites the at least one vibrational or rotational mode of the at least one component of the insulation fluid.
Dependencies are inferred from the claim text.