SYSTEM FOR MONITERING METAL-TO-METAL CONTACT IN ROTATING MACHINERY

A rub between the rotating and stationary parts of a turbine is detected by connecting the rotor to electrical ground and introducing electrical energy into the rotor-ground circuit. A rub between the rotating stationary part modifies the currents in the grounding circuit to an extent that the condi...

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Bibliographic Details
Main Authors OSBORNE ROBERT L, WONN JAMES W
Format Patent
LanguageEnglish
Korean
Published 12.06.1991
Edition5
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MEASURING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PHYSICS
STEAM ENGINES
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
WEAPONS
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Summary:A rub between the rotating and stationary parts of a turbine is detected by connecting the rotor to electrical ground and introducing electrical energy into the rotor-ground circuit. A rub between the rotating stationary part modifies the currents in the grounding circuit to an extent that the condition may be detected so as to provide a rub indication. In another embodiment the rotor discharge current in one or more grounding devices normally associated with a turbine is monitored to detect any abnormal condition.
Bibliography:Application Number: KR19830002435