Back to results
US 8,618,435 B2Granted
Ablative plasma gun
AssigneeGeneral Electric Company
InventorsAdnan Kutubuddin Bohori, Thangavelu Asokan
Life of this patent
Estimating the term…
Abstract
An ablative plasma gun is presented. The ablative plasma gun includes a first gun electrode and a second gun electrode arranged between a dielectric layer to form a longitudinal slot. An opening at a distal end of the longitudinal slot is provided to spread generated plasma.
Claims7
An arc flash elimination system comprising:
- an arc flash mitigating device comprising at least two main electrodes forming a gap in between said main electrodes and each main electrode coupled to a different phase or neutral or ground in an electrical power system circuit, wherein the at least two main electrodes are configured to generate a protective arc therebetween and mitigate an arc flash in the power system circuit when an electrical impedance in the gap between the at least two main electrodes is lowered;
- an ablative plasma gun positioned within the gap, wherein the ablative gun comprises a first gun electrode and a second gun electrode arranged between a dielectric layer to form a longitudinal slot comprising an opening;
- and
- a trigger circuit configured to generate an electrical pulse between the first gun electrode and the second gun electrode and create a conductive plasma exiting from the opening of the longitudinal slot when the arc flash in the power system circuit is detected;
- wherein the plasma lowers the electrical impedance in the gap between the at least two main electrodes.
2 more elements
An arc flash mitigating device comprising:
- at least two main electrodes separated by a gap and each main electrode coupled to electrically different portions of an electrical power system circuit, wherein the at least two main electrodes are configured to generate a protective arc in between and mitigate an arc flash in the power system circuit when a plasma bridges the gap between the at least two main electrodes;
- at least two ablative plasma guns, each comprising a first gun electrode and a second gun electrode arranged between a dielectric layer, wherein the first gun electrode, the second gun electrode and the dielectric layer are configured to form a longitudinal slot comprising an opening at a distal end;
- wherein said ablative plasma guns are disposed proximate the gap and the main electrodes and configured to bridge the gap between said main electrodes by the plasma created within the longitudinal slot and exiting from the distal end upon receipt of a trigger signal;
- and
- wherein the trigger signal is generated when the arc flash in the power system circuit is detected.
2 more elements
Dependencies are inferred from the claim text.