CompetitorsCompetitors

Available PdM TechnologiesAvailable PdM Technologies

technology

Characteristic

Ultra VioletInfra RedUltra SonicPD

VisualPinpointVoltagesN/A

Current dependent

Non destructive

Prices level

Manufacturers2 (daytime)ManyManyMany

Functions

HighMediumLow

Available PdM TechnologiesAvailable PdM Technologies

technology

Characteristic

Ultra VioletInfra RedUltra sonicPD

ContaminationUndefinedLoose hardwareUndefined RFI, TVI, ANUndefinedConnectionsUndefinedLubricant (oil)UndefinedLoad line (Current)UndefinedInternal faultsIndicationIndicationUndefined

Mission

Available PdM TechnologiesAvailable PdM Technologies

technology

Characteristic

Ultra VioletInfra RedUltra sonicPD

Ambient limitations

Temperature Audio NoiseDistance Limitationn/aMode of operation:

Ground patroln/a Airbornen/a Drivenn/a

Performance

Corona Detection MethodsCorona Detection Methods

Daytime Solar Blind UV Cameras• Ofil - DayCor® products • Ofil – UVolle • CoroCAM

Other• Ultrasonic • RF - Radio Frequency• Night UV cameras - long exposure

Non imaging devices - limitations • Detection distance - 50 Meter

• Cannot pinpoint corona source

• Disturbed by noisy environment

• Unfit for airborne inspections

Corona DetectionCorona Detection Methods-RejectsMethods-Rejects

Daytime CompetitorDaytime Competitor

SensitivityErgonomicRecording

Specifications

MethodologyUGM

Features

Specifications

Performance

Ofil Support

DayCor® Vs. CoroCAM

28% (70/250) of max gain Counting is 3259/min

69% of the max gain Counting is 900/min (15/Sec)

DayCor®

CoroCam

Test conditions

Same day and time

Identical source

Identical distance

Play

Click to Play

Comparison testComparison test - - ResultsResults

Click to Play

• DayCor® Gain 2.4 times lower• DayCor® count 3.6 times higher

Outcomes and ConclusionsOutcomes and Conclusions

DayCor® sensitivity - 9 times higher

Sensitivity Comparison [ Watt/cm^2]

DayCor®

High3x10-18

CoroCamLow

8x10-18

Ofil can detects

1.5 pC from a distance of 8m at normal video rate (25 or 30 frames/sec)

without any image processing.

DayCor® sensitivity is 3 times higher than CoroCAM

DayCor® Vs CoroCamDayCor® Vs CoroCam

Large efficiency collection area

High quality solar blind filter

Strong and sensitive MCP

Narrow FOV - Filed Of View

DayCor® has the highest sensitivity due to:

Feature - SensitivityFeature - Sensitivity

Feature - Long IntegrationFeature - Long Integration

Low frame ratelingered shots of each scene

• Used by CoroCAM to compensate for low sensitivity

• Must use a tripod

• Slow inspections – unfit for airborne nor driven

Feature - Long IntegrationFeature - Long Integration

Recommended to:

1. Overcome background

disturbances/noise

Not recommended:

1. Smearing picture

2. Lingered inspection

3. Tripod required.

Click to Play

CharacteristicsDayCor®CoroCAM

DistanceHighLow

Airborne Inspectionhigh speedHovering

Pinpoint accuracyHighMed

Pinpoint factors:

FOVNarrow angle 5H x 3.75V Deg

Wide angle optics 8H x 6V Deg

UV-Vis overlayReal TimeDelayed - Image processing (Video delay)

SmearingNoneSmearing

Solar BlindAbsolute Limited

Conclusion - SensitivityConclusion - Sensitivity

Feature - ErgonomicFeature - Ergonomic

ErgonomicDesign

Recording ofFindings

Hands FreeInspection

Safe Operation

Duration ofDaily Inspection

Activation of operational modes

DayCor®

• Carrying vest

• LCD screen

• Weight 3.3kg

• Video Stills capture

CoroCam

• Harness

• View finder

• Weight 2.3kg

• Stills picture only

Feature - ErgonomicFeature - Ergonomic

Ergonomic Design

DayCor® Classic Hands free inspection

CoroCamCaptive hands and eyes

Feature - ErgonomicFeature - Ergonomic

Feature – Video RecordingFeature – Video Recording

Video Recording Still picture

Corona is an intermittent phenomenon

Processing is done at the office – far from the actual scene. Video is preferable !

Play

Ergonomic Design

CoroCam:Additional employee is required For recording process

CoroCamWorking with tripod is Essential for working in the LI (low frame rate) mode

Feature - ErgonomicFeature - Ergonomic

CharacteristicDayCor®CoroCam 504

Findings recordingVideo - InternalStills

Hands free scanYesNo

Working hours ExtendedLimited

Muscle strain

Eye strain

Power

Camera load on big muscles

LCD screen

Single battery 180min

Raised arm

View finder

Single battery 90min

Safe operationYes No

Conclusion - ErgonomicConclusion - Ergonomic

UGM

Ofil Supportive ActivitiesOfil Supportive Activities

Criticalcomponent?

Corona- where?

Material typeCritical

location?

Corona intensity?

Can it be damaged by

corona?

No

No

No

Yes

Yes

Yes

High

Medium Low

Monitor for additional signs

Schedule repair or replacement

Repair or replace ASAP

AN, RI, TVI concern? No

Yes

Repair or replace ASAP

Ofil Supportive ActivitiesOfil Supportive Activities

Market Install BaseMarket Install Base

Ofil80%

CoroCam20%

The End