Patent ID: 11923164
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of mitigating an arc flash in an operation of a main overcurrent circuit protector providing primary overcurrent protection to an electrical load, the method implemented with an arc flash mitigation network connected in parallel to the main overcurrent circuit protector, wherein the arc flash mitigation network includes at least one semiconductor switch and at least one arc flash mitigation fuse connected in series with the at least one semiconductor switch in a shunt current path, wherein the method comprises:
in response to a predetermined circuit condition, operating the at least one semiconductor switch to divert current away from the main overcurrent circuit protector and to the at least one arc mitigation fuse;
whereby an operation of the at least one arc flash mitigation fuse by the diverted current reduces arc flash energy while servicing an energized electrical power system in a vicinity of the main overcurrent circuit protector, wherein the operation occurs before the main overcurrent circuit protector being opened by the current.