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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02K-007/09    F16C-037/00    F16C-032/04   
미국특허분류(USC) 310/090.5;
출원번호 US-0332931 (2011-12-21)
등록번호 US-8994237 (2015-03-31)
발명자 / 주소
  • Griffin, Timothy R.
  • Gilarranz, Jose L.
출원인 / 주소
  • Dresser-Rand Company
대리인 / 주소
    Edmonds & Nolte, PC
인용정보 피인용 횟수 : 1  인용 특허 : 301
초록
▼

A resistance to ground monitoring system for a magnetic bearing is disclosed. The system includes a dummy bearing arranged in a cooling loop and having a dummy bearing coil made up of an electrical winding that is configured to detect the resistance to ground for the dummy bearing coil. The electrical winding is communicably coupled to a sensing device that monitors the resistance to ground for the dummy bearing coil. Since the magnetic bearing is arranged within the same cooling loop, the resistance to ground for the dummy bearing coil is indicative of ...

대표
청구항
▼

1. A magnetic bearing monitoring system, comprising: one or more radial bearings arranged within a casing, each radial bearing having radial bearing coils configured to levitate a rotatable shaft;a cooling loop configured to circulate a cooling gas to the bearing cavities;a dummy bearing arranged in the cooling loop and having at least one dummy bearing coil made of an electrical winding; anda sensing device communicably coupled to the electrical winding to monitor a resistance to ground for the at least one dummy bearing coil, wherein the resistance to ...

이 특허에 인용된 특허 (301)

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  1. Gilarranz, Jose L.; Griffin, Timothy R., Midspan active magnetic bearing.

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