The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2026
Filed:
Aug. 23, 2023
Eaton Intelligent Power Limited, Dublin, IE;
Michael Thomas Martin, Mars, PA (US);
Theodore James Miller, McDonald, PA (US);
David Walter Brooking, New Galilee, PA (US);
EATON INTELLIGENT POWER LIMITED, Dublin, IE;
Abstract
A remotely operated circuit interrupter includes: primary separable contacts coupled to an operating mechanism and a thermal-magnetic trip device structured to interrupt current from flowing to loads by opening the primary separable contacts during a fault event; and a fault current tolerant secondary switching mechanism including secondary separable contacts coupled to the primary separable contacts in series, Rogowski coils, a di/dt measurement circuit, a secondary solenoid driver, the Rogowski coils structured to continuously sense a rate (di/dt) of change of load current, the di/dt measurement circuit structured to receive a signal including the sensed di/dt, determine that the sensed di/dt has reached or exceeded a threshold current rate of change, and output a fault signal to the secondary solenoid driver based on the determination, the secondary solenoid driver structured to actuate the solenoids to fully open the secondary separable contacts using arc voltages of the primary and secondary contacts.