CA2062445A1 - System and method for detecting faults in generator bearing pedestals and seal insulation - Google Patents

System and method for detecting faults in generator bearing pedestals and seal insulation

Info

Publication number
CA2062445A1
CA2062445A1 CA002062445A CA2062445A CA2062445A1 CA 2062445 A1 CA2062445 A1 CA 2062445A1 CA 002062445 A CA002062445 A CA 002062445A CA 2062445 A CA2062445 A CA 2062445A CA 2062445 A1 CA2062445 A1 CA 2062445A1
Authority
CA
Canada
Prior art keywords
shaft
core
potential
transformer
insulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002062445A
Other languages
English (en)
French (fr)
Inventor
Michael Twerdochlib
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2062445A1 publication Critical patent/CA2062445A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
CA002062445A 1991-03-08 1992-03-06 System and method for detecting faults in generator bearing pedestals and seal insulation Abandoned CA2062445A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/666,316 US5134378A (en) 1991-03-08 1991-03-08 System and method for detecting faults in generator bearing pedestals and seal insulation
US666,316 1991-03-08

Publications (1)

Publication Number Publication Date
CA2062445A1 true CA2062445A1 (en) 1992-09-09

Family

ID=24673695

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002062445A Abandoned CA2062445A1 (en) 1991-03-08 1992-03-06 System and method for detecting faults in generator bearing pedestals and seal insulation

Country Status (8)

Country Link
US (1) US5134378A (enExample)
EP (1) EP0503846A3 (enExample)
JP (1) JPH07191103A (enExample)
KR (1) KR920019044A (enExample)
CA (1) CA2062445A1 (enExample)
CS (1) CS67592A3 (enExample)
MX (1) MX9200958A (enExample)
TW (1) TW197540B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108828419A (zh) * 2018-08-01 2018-11-16 广州供电局有限公司 基于似然估计的开关房局部放电定向方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796262A (en) * 1996-02-14 1998-08-18 Westinghouse Electric Corporation Method and apparatus for diagnosing bearing insulation impedance of a rotating electrical apparatus
MY116924A (en) * 1996-07-10 2004-04-30 Matsushita Electric Industrial Co Ltd High speed dynamic run-out testing apparatus and method
US6163157A (en) * 1999-02-17 2000-12-19 General Electric Co. Insulation tester for squirrel cage rotors
US6460013B1 (en) 1999-05-06 2002-10-01 Paul I. Nippes Shaft voltage current monitoring system for early warning and problem detection
US7034706B1 (en) 1999-05-06 2006-04-25 Nippes Paul I Early warning and problem detection in rotating machinery by monitoring shaft voltage and/or grounding current
US6798112B1 (en) * 2003-04-25 2004-09-28 General Motors Corporation Armature ground locating test process and equipment
CH697269B1 (de) 2004-08-12 2008-07-31 Alstom Technology Ltd Verfahren und Vorrichtung zur Detektion von Streifstellen an rotierenden Maschinen.
JP4665689B2 (ja) * 2005-09-28 2011-04-06 株式会社日立製作所 発電機用軸封装置
DE102015223211A1 (de) * 2015-11-24 2017-05-24 Robert Bosch Gmbh Verfahren zum Erkennen eines Fehlers in einer Generatoreinheit
CN113933668B (zh) * 2021-11-12 2024-05-10 中广核核电运营有限公司 发电机转子绝缘检测方法及发电机定子故障测试方法
CN115308599B (zh) * 2022-10-09 2023-03-28 深圳市兴丰元机电有限公司 一种电机用防水测试装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746979A (en) * 1971-07-08 1973-07-17 V Kildishev Apparatus for measuring the insulation resistance of the rotor of a brushless synchronous machine
US3831160A (en) * 1973-10-01 1974-08-20 Gen Electric Voltage and current monitoring system
CH594891A5 (enExample) * 1976-04-22 1978-01-31 Bbc Brown Boveri & Cie
US4097794A (en) * 1976-11-15 1978-06-27 Allis-Chalmers Corporation Static means for detecting ground insulation failure for rotary electric machines
US4492999A (en) * 1981-05-09 1985-01-08 Mitsubishi Denki Kabushiki Kaisha Supervisory unit for rotary electrical machinery and apparatus
US4517839A (en) * 1983-07-05 1985-05-21 Unit Rig & Equipment Co. Off-highway vehicle systems simulator and control panel testing
SE456376B (sv) * 1983-12-08 1988-09-26 Helmersson Rune Larmanordning vid isolerat rorsystem
JPS63169534A (ja) * 1987-01-08 1988-07-13 Kokusai Denshin Denwa Co Ltd <Kdd> 光ケ−ブルの障害点検出方式
US4808911A (en) * 1987-07-22 1989-02-28 Hughes Aircraft Company Loop resistance test apparatus
US4851949A (en) * 1988-06-13 1989-07-25 Westinghouse Electric Corp. Brush bounce detection in active shaft ground system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108828419A (zh) * 2018-08-01 2018-11-16 广州供电局有限公司 基于似然估计的开关房局部放电定向方法
CN108828419B (zh) * 2018-08-01 2020-11-03 广东电网有限责任公司广州供电局 基于似然估计的开关房局部放电定向方法

Also Published As

Publication number Publication date
CS67592A3 (en) 1992-10-14
EP0503846A3 (en) 1994-05-18
MX9200958A (es) 1992-09-01
JPH07191103A (ja) 1995-07-28
KR920019044A (ko) 1992-10-22
US5134378A (en) 1992-07-28
EP0503846A2 (en) 1992-09-16
TW197540B (enExample) 1993-01-01

Similar Documents

Publication Publication Date Title
Stone et al. Stator winding monitoring
Albright Interturn short-circuit detector for turbine-generator rotor windings
Tallam et al. A survey of methods for detection of stator-related faults in induction machines
Stone Condition monitoring and diagnostics of motor and stator windings–A review
US5134378A (en) System and method for detecting faults in generator bearing pedestals and seal insulation
US5032826A (en) Core monitor that uses rotor shaft voltages
Kurtz et al. Generator insulation diagnostic testing
Stone et al. Impact of slot discharges and vibration sparking on stator winding life in large generators
Dehlinger et al. Surface partial discharge in hydrogenerator stator windings: Causes, symptoms, and remedies
Timperley et al. Condition assessment of electrical apparatus with EMI diagnostics
Tetrault et al. Monitoring partial discharges on 4-kV motor windings
Stone et al. Using magnetic flux monitoring to detect synchronous machine rotor winding shorts
Stone et al. Examples of stator winding insulation deterioration in new generators
Stone et al. Monitoring of shaft voltages and grounding currents in rotating machines
Hoof et al. PD diagnostics on rotating machines. Possibilities and limitations
Verginadis et al. Determination of the insulation condition in synchronous generators: Industrial methods and a case study
Timperley et al. Estimating the remaining service life of asphalt-mica stator insulation
Kheirmand et al. Advances in online monitoring and localization of partial discharges in large rotating machines
Pedneault-Desroches et al. Shaft current measurement and failure prediction in hydrogenerators
McDermid et al. Analysis of converter transformer failures and application of periodic on-line partial discharge measurements
CN101479615B (zh) 用于诊断在线高压部件的方法和设备
WO2020189012A1 (ja) 絶縁抵抗監視装置
Kogan et al. Surface corona suppression in high voltage stator winding end turns
Puhan et al. Analysis of root cause of failure of a turbo generator stator winding
Aksyonov et al. On-line a off-line diagnostics for power station HV equipment

Legal Events

Date Code Title Description
FZDE Discontinued