General Electric Company

Ge Global Sourcing LLC

Latha Belagumba Narasegowda

Jeffrey John Wolff

Jeffrey Louis Daigle

Swapan Kumar Kundu

Jared Klineman Cooper

Eugene Andrew Smith

Brian William Schroeck

Robert Bremmer

Srinand Sridhara Murthy

Velmurugan Veilumuthu

A system for testing a ground fault detection system in an electric circuit establishes a ground connection between a bus and the ground via an inverter and a load by closing an inverter switch of the inverter and a grounding switch disposed between the load and the ground, determines whether the ground connection is detected, and determines a fault in the ground fault detection system responsive to the first ground connection not being detected by the ground fault detection system. Optionally, a ground fault may be identified by determining three phase voltages provided from each of plural inverters, determining symmetrical components of the three phase voltages for each of the inverters, and identifying a ground fault in one or more of the inverters while powered by the power supply based on the symmetrical components.

Electric ground fault detection system and method

A system includes a first propulsion subsystem and a second propulsion subsystem. The first propulsion subsystem is operable to provide electrical energy to a first communication device when operating in an ON mode. The second propulsion subsystem is operable to provide electrical energy to a second communication device when operating in the ON mode. The first propulsion subsystem and the second propulsion subsystem are controllable in a mode of operation where if one of the first propulsion subsystem or the second propulsion subsystem is controlled to be in an OFF mode, the other of the first propulsion subsystem and the second propulsion subsystem provides electrical energy to the respective first communication device or the second communication device.

System and method for vehicle control

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Bengaluru, India

Latha Belagumba Narasegowda