Faster Easier Better - Unitronics Electric

1 ThenextgenerationinELCID technologyFFFF aaaasssstttteeeerrrrEEEE aaaassssiiiieeeerrrrBBBB eeeetttttttteeeerrrrEL CIDEVOLUTIONEL CID EvolutionFaster, Easier , CORE FAULT DETE CTIONE lectromagnetic C ore Imp erf ection Det ecti on (EL CID)Testing is acce pted world- wide for reliable and safedetec tion of stato r core inter-laminar faults (CIGR ,2004). S inc e the Ma y 2007 merger of ADW EL andIRIS Power the EL CI D E volution is now availablefrom Iris ly developed by the CEG B in E ngland, theEL CID Evolutio n is the next genera tion of this rel i-able, eas y to use, stator cor e test equipment . EL CIDE voluti on te sts the condition of the stator core in lesstimeand withlower costthan ear lier EL CID mode RESULTSL arge fault signalMinor defectsGraphs of inter-laminar current vs.

2 Core lengthMultiple core tracesSingle core trace and analysisCore Visualizat ion Scre en show ing hot spots EL CID provides a rapid test of the machine, often less than one shift for turbogenerator s Only one technician is needed for o peration, saving skilled resour ces and cost Typical labour reduce from 144-360 ma n-hours for a major turboge nerator ring f lux test to just 8- 10 man-hours for EL C ID Ra pid ly se t up to re test after a ny rep air ensur es quic k turn ar ound Minimize i ntr usive repairs by instantly verifying re sultsNEW AND IMPROVED FEATURES Fastertest scanning (up to 120mm/sec @6 0Hz) Easierexcitation calcul ati ons Simplertesting with dual C ha ttocks User-frien dly L CD display to gui de u ser operation Combine step-iron data with main core traces Easily identify hot spots via col our map display Fully compatible with existing dataRAPID TESTING BENEFITSFEATURES- Tests are repeatabl e- Immedia te test re sults a re ava ilable for loca l analysis andemail- Deter mines if defects ar e on the surf ace , unde r conduc-tors or sub-surface- Tests with or without windings- Be tter detects buri ed faults - Partial and retest s of core possible.

3 With ability to me rgeresults to obtai n a complete picture of the core Trending of previ ous results- Excel lent quality assurance testSAFETY- Uses only 120/230V power for excitation and operation - Double i nsulatio n to minim izeoperator risks- Low excitati on flux level eliminates risk of further inter-lam ination insulation damage (as might occur during ring flux heating of an un-cooled core )Hours and Personnel to Complete the TestTest ing Core B annerENDORSEMENTS FROM EL CID USERSEDF: We ve h ad the op portunity to test turbo and hydro generator magnetic cores. The ease ofoperation, the repeatabilit y o f results makes EL CID an interesting investigation tool for magneticcore condition monitoring.

4 Florida Light an d Power: We have had great success with our Adwel EL CID. It detected a deepse ated fault, below the win di ng, which would have led to a failure of the stator core. This fault wasnot immediately detected by a high power loop test. CIGR Report 2 57, 2004: The re seems to be general consensus that if an EL CID test is per-formed and no damage is fo und, then the core is defect free. EL CID has gained good credibility in itsability to d etermine and locate the presence of faults and to ver ify repairs when faults are found. DESCRIPTIONHEAD OFFICEUSA OFFICEINDIA OFFICEUK OFFICEIris Power LP1 Westside Drive, Unit 2To ro nto , Ontario M9C 1B2 Can ad aTe le ph one: +1-416-620-56 00Fa x: +1 -416-620-1995 Iris Power- Koch-Gli tsch 480 0 Sug ar Grove Blvd.

5 #29 0 Sta ffo rd , Texas 77477 USATe lep hone: +1-281-207-5 322 Fax: +1-281-207-5323 Iris Power- Koch Gl itsch India110 5, M odi Tower, Nehru PlaceNew D elhi, India110 01 9Ph one : +91-11-4180-847 0 Fax: +9 1-11-4180-8471 Iri s Po wer LP - A DWEL rk H ouse,Gre en hillCre sce ntWatford, WD18 8PH, UKTel +44 1923 254433 Fax +44 1923 21827 . CID operates at on ly 4% of norma l operating fl ux, providedby it s quickly install ed excitatio n ki t. Any imperfections in thecore result in fault currents, which ar e dete cted by a C hat tocksen se h ead coil and a nalyzed by the EL CID signal-processingunit. Res ults are digital ly stored in the PC for analysis andreport generation, and faults can be precisely located in thecor e.

6 Future results can be comp ar ed to past resu lts for tr traditional stator co re test method kn own as Rin g-fl ux or Loop test uses near-f ull rate d op erating flux,which is po tentially damaging to the uncooled machine and dangerous to operat ors, requiri ng l arge powercab les, t ransformers and why not reduce yo ur test outage time and a void the hazards of the stator core l oop test with E L CI D?