Method and Device for Detecting the Absence of Voltage
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United States of America Patent
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Issued Date -
Sep 21, 2017
app pub date -
Sep 3, 2015
filing date -
Sep 5, 2014
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Abstract
Method and device for determining the absence of voltage in electrical equipment. An installed device is electrically connected to a power source. The installed device has circuitry capable of detecting voltage, performing self-diagnostics, and testing for connectivity to the power source. In one embodiment, the device can also check to see if the voltage is at a deenergized level, recheck for continuity and repeat the self-diagnostics. In another embodiment, the installed device can be electrically connected to the line and load side of a disconnect and have circuitry configured to check the status of the disconnect. In another embodiment, the device can be configured to communicate with a portable reader in order to transfer information to the portable reader. In yet another embodiment, the device can be configured to interact with a controller that controls access to the panel in which the device is installed.
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