Arrangement for ground-fault detection in an ac circuit and power supply arrangement with ground-fault detection
AssigneeAeg Power Solutions B.V.
InventorPeter WALLMEIER
Life of this patent
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Abstract
The invention relates to an arrangement (10) for ground fault monitoring of an AC circuit between, on one hand, a neutral conductor (N′) of the AC circuit and, on the other hand, a protective ground wire (PE) or a ground wire with a series connection of ohmic resistors (R1, R2, R3), which has a first terminal (101) for the neutral conductor (N′) and a second terminal (102) for the protective ground wire (PE) or ground wire, wherein the arrangement includes at least one means for detecting a break of one of the resistors (R1, R2, R3) of the series connection.
Claims15
An arrangement (10) for ground fault monitoring of an AC circuit between a neutral conductor (N′) of the AC circuit, and a protective ground wire (PE) or a ground conductor, the arrangement comprising
- a series connection of ohmic resistors (R1, R2, R3) having a first terminal (101) for the neutral conductor (N′) and a second terminal (102) for the protective ground wire (PE) or the ground conductor,
- wherein the arrangement comprises at least one means for detecting a break of one of the resistors (R1, R2, R3) of the series connection.
Dependencies are inferred from the claim text.