G - Physics – 01 – R
Patent
G - Physics
01
R
325/41, 324/58.0
G01R 15/14 (2006.01) G01R 1/36 (2006.01) G01R 15/26 (2006.01) H01F 38/22 (2006.01)
Patent
CA 1266300
Abstract of the Disclosure A self contained sensor module mounted on a power transmission line. The module is capable of measuring various parameters such as line current, voltage, conductor temperature, and ambient temperature. The parameter values are processed by sensor electronics which digitize and periodically transmit the values to a ground receiver. The sensor electronics include MOS integrated circuits which are sensitive to fluctuations in supply voltage and which may enter a power-fall state or latch up as a result of such fluctuations. The module contains watchdog circuitry which monitors the operation of the module. If an interruption in the module's normal operating sequence occurs the watchdog circuit resets the MOS integrated circuits by initiating a power down/power up sequence. The module further includes current limiting circuitry that reduces the integrated circuit's supply voltage in response to the failure of a circuit that is not critical to the module's normal operating sequence.
535972
Cassan Maclean
Niagara Mohawk Power Corporation
LandOfFree
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