MCSA new

Information about MCSA new

Published on November 15, 2007

Author: Gabir

Source: authorstream.com

Content

Slide1:  SHORT COURSE MOTOR CURRENT SIGNATURE ANALYSIS FOR DIAGNOSIS OF FAULTS IN INDUCTION MOTOR DRIVES Prof Bill Thomson Director and Consultant EM Diagnostics Ltd EM Diagnostics Ltd 20 Greystone Road, Alford, Aberdeenshire, AB33 8TY, Scotland, UK Tel : +44 (0) 19755 62446 Fax : +44 (0) 19755 62628 e-mail : [email protected] web site : www.mcsainterpreter.com © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited. MCSA : MOTOR CURRENT SIGNATURE ANALYSIS INDUCTION MOTOR DRIVES:  MCSA : MOTOR CURRENT SIGNATURE ANALYSIS INDUCTION MOTOR DRIVES DIAGNOSE PROBLEMS PRIOR TO MOTOR DRIVE FAILURE BROKEN ROTOR BARS ABNORMAL AIRGAP ECCENTRICITY SHORTED TURNS IN LV STATORS ABNORMAL ROTOR DYNAMICS PUMP WEAR MISALIGNMENT © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited INDUCTION MOTOR DRIVE SYSTEMS:  INDUCTION MOTOR DRIVE SYSTEMS WHY SO IMPORTANT? USA 800,000 MW GENERATING CAPACITY 40-50% CONSUMED BY INDUCTION MOTORS 320,000MW PLANT SYSTEMS 328 MILLION HORSEPOWER Slide4:  Power Utilities Oil & Gas Chemical Refineries Pulp & Paper Mining Shipping MOD Transport Nuclear Wind Power DuPont Kodak Ford Uptime of Induction Motor Drive Systems Slide5:  8 CW Induction Motor Drives 8 PA Induction Motor Drives 8 ID Induction Motor Drives 26 Mill Motors Induction Motor Drives 8 Coal Conveyor Induction Motor Drives 8 FD Induction Motor Drives 8 Compressor Induction Motor Drives Numerous other Induction Motor Drives 2000 MW Coal Fired Power Station Slide6:  3 PHASE, SCIM, 6.6kV, 2800kW/3753H.P., 2-POLE, 3570r.p.m., 60Hz, (Full-load slip = 0.00833 or 0.833%) © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited MOTOR CURRENT SIGNATURE ANALYSIS:  MOTOR CURRENT SIGNATURE ANALYSIS CONDITION MONITORING TECHNIQUE INSURANCE POLICY TO PREVENT FAILURES REDUCE DOWNTIME AND REPAIR COSTS PREVENT LOST PRODUCTION INCREASE RELIABILITY - PRODUCT DELIVERY Slide8:  MCSA MCSA : On-Line Monitoring and Analysis of Current to Assess the Condition of an Induction Motor Drive System APPLICATION OF CURRENT TRANSFORMER CT:  APPLICATION OF CURRENT TRANSFORMER CT MCSA Instrumentation:  MCSA Instrumentation Slide11:  Time Domain signals and Current Spectra CURRENT SIGNATURE DUE TO BROKEN BARS :  CURRENT SIGNATURE DUE TO BROKEN BARS LOWER SIDEBAND f1 =SUPPLY FREQUENCY (60 Hz) Hz dB UPPER SIDEBAND SIGNATURE PATTERN DUE TO BROKEN BARS TWICE SLIP FREQUENCY SIDEBANDS : 2sf1:  SIGNATURE PATTERN DUE TO BROKEN BARS TWICE SLIP FREQUENCY SIDEBANDS : 2sf1 fsb = f1±2sf1 -2sf1 +2sf1 f1 dB Hz IDEALISED Current Spectrum – Due to Broken Rotor Bars MCSA ON GM3802A (January, 2002) 3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A 50 Hz BROKEN ROTOR BAR – LIFTED OUT OF THE SLOT:  MCSA ON GM3802A (January, 2002) 3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A 50 Hz BROKEN ROTOR BAR – LIFTED OUT OF THE SLOT N=46 dB © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited 3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A BROKEN ROTOR BAR – LIFTED IN THE SLOT SECONDARY DAMAGE TO HV STATOR:  3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A BROKEN ROTOR BAR – LIFTED IN THE SLOT SECONDARY DAMAGE TO HV STATOR © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited 3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A BROKEN ROTOR BAR – LIFTED IN THE SLOT SECONDARY DAMAGE TO HV STATOR:  3-PH, HV, SCIM, 4155HP/3.1MW, 11kV, 2974r.p.m., 195A BROKEN ROTOR BAR – LIFTED IN THE SLOT SECONDARY DAMAGE TO HV STATOR OFFSHORE OIL PRODUCTION PLATFORM TOTAL REPAIR COSTS : $270,000.00 (Removal, transport, repair & re-installation costs) THE BOSS IS NOT HAPPY PREVENT THIS HAPPENING AGAIN YOUR JOB IS ON THE LINE Slide17:  Case History : Large Sea Water Injection Pump 3-Phase SCIM, 6600V, 60Hz, 3.6MW/4285h.p.,376A, 3580r.p.m., Star connected Full-load slip? s=(Ns-Nr)/Ns = 0.0055(0.55%) Sidebands = 2*0.0055*60 = 0.67 Hz (at full load) or Pole Pass Sidebands = 2 *(60 - 59.667) = 0.67 Hz 1985 : 20 BARS BROKEN OUT OF 46:  1985 : 20 BARS BROKEN OUT OF 46 INDUCTION MOTOR – GEARBOX – COMPRESSOR 3 –phase, 415 V, 134 kW/180 H.P., 210 A, 1485 r.p.m., 50 Hz R = 58:  INDUCTION MOTOR – GEARBOX – COMPRESSOR 3 –phase, 415 V, 134 kW/180 H.P., 210 A, 1485 r.p.m., 50 Hz R = 58 1982 150 A Slide20:  DIE CAST ROTOR FAULTY END RING INSPECTION FOLLOWING ON-LINE MCSA © William T. Thomson EM Diagnostics Ltd 2001 - unauthorised copying, reproduction or amendment of all or part prohibited

Related presentations


Other presentations created by Gabir

Latin America geography
23. 11. 2007
0 views

Latin America geography

wks2c capart
13. 04. 2008
0 views

wks2c capart

RP oil markets into 2006
10. 04. 2008
0 views

RP oil markets into 2006

11th CH 11
09. 04. 2008
0 views

11th CH 11

c8 s1 notes
07. 04. 2008
0 views

c8 s1 notes

avian
30. 03. 2008
0 views

avian

Biomechanics of Driving
27. 03. 2008
0 views

Biomechanics of Driving

Cl 12 Med En Infect 5 17 07
26. 03. 2008
0 views

Cl 12 Med En Infect 5 17 07

BOOK2 Unit4
21. 03. 2008
0 views

BOOK2 Unit4

ITS BBL 030825
18. 03. 2008
0 views

ITS BBL 030825

Commedia
01. 11. 2007
0 views

Commedia

Recruitment Show
28. 12. 2007
0 views

Recruitment Show

Buddhism
17. 12. 2007
0 views

Buddhism

demand
12. 09. 2007
0 views

demand

Chapter2
14. 12. 2007
0 views

Chapter2

using charts
17. 06. 2007
0 views

using charts

extra
15. 11. 2007
0 views

extra

The Heavenly Host
01. 10. 2007
0 views

The Heavenly Host

110Ch05
12. 09. 2007
0 views

110Ch05

it sicherheit
12. 10. 2007
0 views

it sicherheit

n charron
10. 10. 2007
0 views

n charron

Barc6
16. 11. 2007
0 views

Barc6

cucina diavolo
21. 11. 2007
0 views

cucina diavolo

RBI Smith DeWaal
21. 11. 2007
0 views

RBI Smith DeWaal

Time Cal
14. 08. 2007
0 views

Time Cal

Astrology ns4
14. 08. 2007
0 views

Astrology ns4

Fun with PowerPoint
14. 08. 2007
0 views

Fun with PowerPoint

lesaux reading first
14. 08. 2007
0 views

lesaux reading first

Studying Horror Films
14. 08. 2007
0 views

Studying Horror Films

192
26. 11. 2007
0 views

192

wk115365
29. 11. 2007
0 views

wk115365

U William
29. 12. 2007
0 views

U William

webctassess3
06. 12. 2007
0 views

webctassess3

Brock Final Presentation
02. 01. 2008
0 views

Brock Final Presentation

Woodland Adventure
04. 01. 2008
0 views

Woodland Adventure

bioenergy
07. 01. 2008
0 views

bioenergy

Jessica Guerin Look Whos Talking
14. 08. 2007
0 views

Jessica Guerin Look Whos Talking

Shankara
04. 12. 2007
0 views

Shankara

WaltersYang Corn Stover Removal
31. 12. 2007
0 views

WaltersYang Corn Stover Removal

FB Balloons and Wires
02. 01. 2008
0 views

FB Balloons and Wires

learning activities
14. 08. 2007
0 views

learning activities

lb ipgnlu
03. 01. 2008
0 views

lb ipgnlu

Lerner
02. 10. 2007
0 views

Lerner

Kern Jon GLSEC PragmaticMDA
14. 08. 2007
0 views

Kern Jon GLSEC PragmaticMDA

Pizza Box Power Point
12. 09. 2007
0 views

Pizza Box Power Point

allegory
24. 02. 2008
0 views

allegory

2 1 colson
06. 03. 2008
0 views

2 1 colson

Bamboo Treadle Pump
04. 01. 2008
0 views

Bamboo Treadle Pump

1827
14. 08. 2007
0 views

1827

crossroads
19. 02. 2008
0 views

crossroads

GTL Corporate Presentation
14. 08. 2007
0 views

GTL Corporate Presentation

TTsystem
17. 06. 2007
0 views

TTsystem

todas tus lagrimas y
17. 06. 2007
0 views

todas tus lagrimas y

unit5
17. 06. 2007
0 views

unit5

uecien
17. 06. 2007
0 views

uecien

UCSI COMM PROFILE
17. 06. 2007
0 views

UCSI COMM PROFILE

tutor mind map
17. 06. 2007
0 views

tutor mind map

VTPresentation
05. 12. 2007
0 views

VTPresentation

215 security projectpresentation
28. 09. 2007
0 views

215 security projectpresentation

15 25 IHY EPO
28. 12. 2007
0 views

15 25 IHY EPO

438
14. 03. 2008
0 views

438

MIBA
30. 12. 2007
0 views

MIBA

tugceodev
17. 06. 2007
0 views

tugceodev

class2 Software Process
14. 08. 2007
0 views

class2 Software Process

Wise2003
07. 10. 2007
0 views

Wise2003

KHR02 O
28. 12. 2007
0 views

KHR02 O

samantha spiders
14. 08. 2007
0 views

samantha spiders

2005 06 14 agm
12. 09. 2007
0 views

2005 06 14 agm

preservation of recreational wf
28. 12. 2007
0 views

preservation of recreational wf

SamplePrototype
03. 12. 2007
0 views

SamplePrototype

NewMbrs Orientation 2006
10. 03. 2008
0 views

NewMbrs Orientation 2006

micro ch21 presentation
12. 09. 2007
0 views

micro ch21 presentation

quill
12. 09. 2007
0 views

quill