Patent · US Expired

Electric generator inspection system and motor controller

US4889000A · kind A · utility

33Cited by
22References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 23, 1988
Grant dateDec 26, 1989
Priority date
Expiry dateNov 23, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/34
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An inspection system inspects the interior of the stator of an electric generator for the existence of several problems. The inspection apparatus is mounted on a carriage that travels along the slots defined by the stator. An indexer is mounted to the rotor of the generator and can travel around the circumference of the rotor to deliver the carriage to the desired slot. An indexer plate is mounted to the indexer and can be registered with the desired slot to insure that the carriage can enter the slot from the indexer. An associated motor controller disables the motor if an electrical fault is disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.