Communications: electrical – Continuously variable indicating
Patent
1996-11-07
1999-06-29
Horabik, Michael
Communications: electrical
Continuously variable indicating
307116, 340648, 310 68R, 310 68B, 310 68C, G08B 2100
Patent
active
059174285
ABSTRACT:
A method and apparatus for real-time electric motor diagnostics and condition monitoring. While the motor is energized, dynamic operating parameters are determined and a notification signed is generated if predetermined criterion are satisfied. The diagnostic apparatus is integrated with the motor and includes a set of sensors, a processing unit, a memory and an output interface for communicating alarms, warnings and calculated operating parameter values or the like to a display device and to an external supervisor having wireless paging capability to alert a remote operator or maintenance personnel. In a normal operating mode, the processing unit calculates a general class of derived motor operating parameters such as over-temperature, over-voltage, over-current, excessive vibration, and phase imbalance. When an abnormal condition is observed, the processing unit modifies certain data acquisition parameters as necessary to effect an alternative data acquisition strategy which would more likely lead to data dispositive of the condition of the motor.
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DelVecchio Perry A.
Discenzo Frederick M.
Tompkin Edward J.
Horabik Michael
Horn John J.
Miller John M.
Reliance Electric Industrial Company
Walbrun William R.
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