| 摘要 |
A faulted circuit indicator with a high visibility spherical display device is disclosed for indicating a fault condition disposed within the display apparatus is a permanent magnet 42 that is in magnetic communication with, and actuated by, an electromagnet. The permanent magnet is rotatably mounted within the display and is attached to a spherical flag. The spherical flag has two different colors at its hemisphere to represent fault and no-fault conditions. The electromagnet comprises a magnetic core and coil assembly and is magnetized by a current pulse received from the indicator circuitry. By changing the direction of the current through the coil assembly, the polarity of the electromagnet is reversed, which in turn causes the permanent magnet to rotate 180 DEG to realign with the poles of the electromagnet. Because the flag is colored about its hemisphere, the rotation of the permanent magnet results in a change of color being displayed in the display device.
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