Housing part, electrical system and operating method
AssigneeHitachi Energy Ltd
InventorsSamuel Brodeur, Mattias Viksten, Glenn Stromberg, John Richard Tillery, Joakim Johansson
Life of this patent
Estimating the term…
Abstract
A housing part is configured to be connected to an electric component, to house an electric line, and to be filled with a liquid. The housing part includes an electrically conductive material and has an open mounting side to be connected to the electric component. A surface-to-volume ratio of the housing part is at least 3 m-1, and a ratio of the volume and a wall rupture pressure of the housing part is at least 0.02 m3MPa-1. A corresponding electric system is operated so that, when an electric arc occurs in the housing part, the housing part absorbs a pressure rise that is led into a component tank.
Claims20
A housing part, configured to be connected to an electric component, configured to house an electric line, and configured to be filled with a liquid, wherein the housing part comprises an electrically conductive material, wherein the housing part has an open mounting side to be connected to the electric component, a surface-to-volume ratio of the housing part being at least 3 m−1 and is at most 9 m−1, and a ratio of a volume and a wall rupture pressure of the housing part being:
- between 0.04 m3 MPa−1 and 0.6 m3Mpa−1 inclusive if the housing part is a straight turret,
- between 0.4 m3 MPa−1 and 1.5 m3 MPa−1 inclusive if the housing part is an external or a side turret,
- between 0.1 m3 MPa−1 and 1 m3 MPa−1 inclusive if the housing part is a cable box.
An electric system, comprising:
- a housing part, configured to be connected to an electric component, configured to house an electric line, and configured to be filled with a liquid, wherein the housing part comprises an electrically conductive material, wherein the housing part has an open mounting side to be connected to the electric component, a surface-to-volume ratio of the housing part being at least 3 m−1 and is at most 9 m−1, and a ratio of a volume and a wall rupture pressure of the housing part being:
- between 0.04 m3 MPa−1 and 0.6 m3Mpa−1 inclusive if the housing part is a straight turret,
- between 0.4 m3 MPa−1 and 1.5 m3 MPa−1 inclusive if the housing part is an external or a side turret,
- between 0.1 m3 MPa−1 and 1 m3 MPa−1 inclusive if the housing part is a cable box;
- and
- an electric component having a component tank, wherein the housing part is mounted to the component tank by the open mounting side so that an interior of the component tank is connected with an interior of the housing part at the open mounting side, and wherein a volume of the component tank exceeds the volume of the housing part by at least a factor of 3.
An operating method for an electric system comprising:
- a housing part, configured to be connected to an electric component, configured to house an electric line, and configured to be filled with a liquid, wherein the housing part comprises an electrically conductive material, wherein the housing part has an open mounting side to be connected to the electric component, a surface-to-volume ratio of the housing part being at least 3 m−1 and is at most 9 m−1, and a ratio of a volume and a wall rupture pressure of the housing part being:
- between 0.04 m3 MPa−1 and 0.6 m3Mpa−1 inclusive if the housing part is a straight turret,
- between 0.4 m3 MPa−1 and 1.5 m3 MPa−1 inclusive if the housing part is an external or a side turret,
- between 0.1 m3 MPa−1 and 1 m3 MPa−1 inclusive if the housing part is a cable box;
- and
- an electric component having a component tank, the housing part being mounted to the component tank by the open mounting side so that an interior of the component tank is connected with an interior of the housing part at the open mounting side, and wherein a volume of the component tank exceeds the volume of the housing part by at least a factor of 3,
- the method comprising:
- absorbing a pressure rise due to an electric arc occurring in the housing part;
- leading the pressure rise from the housing part into the component tank through the open mounting side;
- and
- deforming the component tank upon receiving the pressure rise to contain the pressure rise.
Dependencies are inferred from the claim text.