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Class Information
Number: 361/42
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Ground fault protection
Description: Subject matter with means for sensing ground faults and for preventing damage to a system or device due to the ground fault.

Sub-classes under this class:

Class Number Class Name Patents
361/43 Fault suppression (e.g., petersen coil) 88
361/47 In a polyphase system 131
361/49 In a single phase system 130
361/44 With differential sensing in a polyphase system 220
361/45 With differential sensing in a single phase system 405

Patents under this class:

Patent Number Title Of Patent Date Issued
8711531 Electrical installation arrangement Apr. 29, 2014
8711530 Pluggable power cell for an inverter Apr. 29, 2014
8710850 System and method for detecting an earth ground fault of an external power supply connected to a vehicle Apr. 29, 2014
8705216 High sensitivity leakage current detection interrupter Apr. 22, 2014
8692149 Low-voltage, medium-voltage or high-voltage switchgear assembly having a short-circuiting system Apr. 8, 2014
8688429 System for comparing real-time data and modeling engine data to predict arc flash events Apr. 1, 2014
8659865 System and method for protection of electrical appliances Feb. 25, 2014
8659858 Ground-fault detecting device, current collecting box using the ground-fault detecting device, and photovoltaic power generating device using the current collecting box Feb. 25, 2014
8659857 Leakage current detection and interruption circuit powered by leakage current Feb. 25, 2014
8659856 DC arc fault detection and protection Feb. 25, 2014
8654487 Methods, systems, and apparatus and for detecting parallel electrical arc faults Feb. 18, 2014
8649133 Plug tail systems Feb. 11, 2014
8649132 Trip device of circuit breaker Feb. 11, 2014
8649130 Motor driving apparatus having fault diagnostic function Feb. 11, 2014
8643986 Bipolar photovoltaic array grounding apparatus and method Feb. 4, 2014
8643985 Photovoltaic bipolar to monopolar source circuit converter with frequency selective grounding Feb. 4, 2014
8635033 Method and apparatus to monitor loss of ground isolation of an electric motor drive circuit Jan. 21, 2014
8634175 Method and system for programming and implementing automated fault isolation and restoration using sequential logic Jan. 21, 2014
8625238 Ground-fault circuit interrupter Jan. 7, 2014
8624694 Residual-current circuit breaker Jan. 7, 2014
8614869 Apparatus, method, and system for integrating ground fault circuit interrupters in equipment-grounded high voltage systems Dec. 24, 2013
8614868 Graded resistance solid state current control circuit Dec. 24, 2013
8614867 Power supply for an electronic tripping unit for a switch, in particular a circuit breaker for low voltages, and a switch having a power supply such as this Dec. 24, 2013
8605395 Dual plug adapter and household high current apparatus Dec. 10, 2013
8605394 Apparatus, method, and system for monitoring leakage current and detecting fault conditions in electrical systems Dec. 10, 2013
8599522 Circuit interrupter with improved surge suppression Dec. 3, 2013
8593769 Secure arc flash detection Nov. 26, 2013
8589094 Global trip unit Nov. 19, 2013
8587914 Fault circuit interrupter device Nov. 19, 2013
8587906 Photovotaic system including hybrid bi-directional DC contactors and method of detection and isolation of faults therein Nov. 19, 2013
8582257 Ultra-low sensitivity ground fault circuit interrupter Nov. 12, 2013
8576521 Adaptive light detection for arc mitigation systems Nov. 5, 2013
8576520 Method for detecting arcs in photovoltaic systems and such a photovoltaic system Nov. 5, 2013
8575941 Apparatus and method for identifying a faulted phase in a shunt capacitor bank Nov. 5, 2013
8570181 Method and apparatus for supervisory circuit for ground fault circuit interrupt device Oct. 29, 2013
8564915 Methods, systems, and apparatus for detecting arc flash events using light and time discrimination Oct. 22, 2013
8564914 Fault clearing without a DC backup power source Oct. 22, 2013
8559150 Electric circuit breaker Oct. 15, 2013
8559143 Vehicle control system Oct. 15, 2013
8559142 DC power supply insulation fault detection circuit Oct. 15, 2013
8558646 Disconnect mechanism in a power receptacle with ground-fault circuit interruption functions Oct. 15, 2013
8547673 Electrical switching apparatus with overvoltage protection Oct. 1, 2013
8547669 Arc fault mitigation for photovoltaic systems Oct. 1, 2013
8541978 Feed control device Sep. 24, 2013
8537516 Apparatus, method, and system for monitoring of equipment and earth ground systems Sep. 17, 2013
8537510 Method and apparatus for monitoring the isolation of an IT-Grid Sep. 17, 2013
8537509 Ground fault detecting and controlling method for parallel-structured high voltage system Sep. 17, 2013
8537021 Apparatus, method, and system for improved control and monitoring of electrical systems Sep. 17, 2013
8531804 Apparatus and method for ground fault detection and location in ungrounded elecrical systems Sep. 10, 2013
8531803 Lightning protection for power inverters Sep. 10, 2013

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