Multi-phase ground fault current sensor system
The present invention relates generally to sensors for detecting a ground fault current, and particularly to a multi-phase Hall effect ground fault current sensor for use in multi-phase motor starter applications. A system and method for detecting ground fault currents in multi-phase power systems....
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
19.02.2002
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| Online Access | Get full text |
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| Summary: | The present invention relates generally to sensors for detecting a ground fault current, and particularly to a multi-phase Hall effect ground fault current sensor for use in multi-phase motor starter applications.
A system and method for detecting ground fault currents in multi-phase power systems. The system and method utilize a gapped core having a central opening. The central opening allows the multiple conductors, e.g. three conductors, to pass therethrough as a group. A sensor, such as a Hall generator, is disposed in the gap of the core and provides an output signal when the current flowing through the multi-phase conductor is unbalanced. The signal output is designed to be proportional to the detected ground fault current. |
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