Arc mitigation self-powered trigger device for low-, medium-, or high-voltage equipment
AssigneeABB Schweiz AG
InventorsDietmar Gentsch, Werner Ebbinghaus
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Abstract
An arc mitigation apparatus includes an arc mitigation device and a solar cell. The arc mitigation device is configured to be mounted to a low-, medium-, or high-voltage switchgear. The arc mitigation device is configured to stop or limit current flow within at least one part of the low-, medium-, or high-switchgear when activated. The solar-cell is configured to be located within a compartment of the low-, medium-, or high-voltage switchgear. The solar-cell is configured to cause the arc mitigation device to activate due to radiation from an electrical arc of the switchgear impinging upon the solar-cell.
Claims18
An arc mitigation apparatus for a low voltage, medium voltage, or high voltage switchgear, the arc mitigation apparatus comprising:
- an arc mitigation device;
- a solar cell;
- and
- a magnetic core memory configured to store arc fault location information,
- wherein the arc mitigation device is configured to be mounted to a low voltage, medium voltage, or high voltage switchgear;
- wherein the arc mitigation device when activated is configured to stop or limit current flow within at least one part of the low voltage, medium voltage, or high voltage switchgear;
- wherein the solar cell is configured to be located within a compartment of the low voltage, medium voltage, or high voltage switchgear;
- wherein the solar cell is configured to cause the arc mitigation device to activate due to radiation from an electrical arc fault of the switchgear impinging upon the solar cell;
- and
- wherein storing the arc fault location information comprises using a single magnetic core to latch an ON state with fault current information.
An arc mitigation apparatus for a low voltage, medium voltage, or high voltage switchgear, the arc mitigation apparatus comprising:
- an arc mitigation device;
- a merging unit;
- and
- a solar cell,
- wherein the arc mitigation device is configured to be mounted to a low voltage, medium voltage, or high voltage switchgear,
- wherein the arc mitigation device when activated is configured to stop or limit current flow within at least one part of the low voltage, medium voltage, or high voltage switchgear,
- wherein the solar cell is configured to be located within a compartment of the low voltage, medium voltage, or high voltage switchgear,
- wherein the solar cell is configured to cause the arc mitigation device to activate due to radiation from an electrical arc fault of the switchgear impinging upon the solar cell,
- wherein the merging unit is located within or associated or in line with the arc mitigation device,
- wherein the merging unit comprises a stored energy from the solar cell into the merging unit,
- wherein activation of the merging unit is configured to release energy to activate the arc mitigation device, and
- wherein the stored energy unit comprises a micro gas generator or a pressurized gas container or one or more springs.
An arc mitigation apparatus for a low voltage, medium voltage, or high voltage switchgear, the arc mitigation apparatus comprising:
- an arc mitigation device;
- and
- a solar cell,
- wherein the arc mitigation device is configured to be mounted to a low voltage, medium voltage, or high voltage switchgear,
- wherein the arc mitigation device when activated is configured to stop or limit current flow within at least one part of the low voltage, medium voltage, or high voltage switchgear,
- wherein the solar cell is configured to be located within a compartment of the low voltage, medium voltage, or high voltage switchgear,
- wherein the solar cell is configured to cause the arc mitigation device to activate due to radiation from an electrical arc fault of the switchgear impinging upon the solar cell,
- wherein the arc mitigation apparatus further comprises an arc fault indication device comprising a bistable relay, and
- wherein the arc fault indication device comprises a magnetic powder.
Dependencies are inferred from the claim text.