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Condition Based Monitoring

Monitoring approach suited to the needs of the customer

Paying higher attention to vital equipment>> >Transformers>are>valuable>components>in>electrical>power>networks.>> >Outages>have>not>only>financial>repercussions,>they>also>impact>on>the>stability>

of>the>grid.

Condition monitoring of transformers>> >Online>information>on>the>actual>operation>conditions>and>calculation>of>the>

condition>and>ageing>behaviour>help>to>avoid>unexpected>outages.>> >Furthermore>it>allows>for>a>more>efficient>and>profitable>transformer>exploitation.

Condition based monitoring of transformers>> >Basic>condition>monitoring>as>solid>base.>> >Advanced>condition>monitoring>on>an>as-needed>basis.

Condition based maintenance of transformers>> >Condition>based>monitoring>backed>up>by>an>adjusted>maintenance>scheme>will>

extend>the>life-time>of>the>transformer>and>increase>its>availability.

Basic condition monitoring

Early warning system i.e. detection of typical fault gases>> >Partial>discharges>->>H2>>> >Excessive>heating>of>paper>->>CO

Monitoring of important transformer data>> >Top-oil>&>ambient>temperature>> >Transformer>loading>> >Tap>position>> >Cooling>stage>> >Moisture-in-oil

Loss-of-life calculation>> >Hot-spot>temperature>> >Relative>ageing>rate>&>accumulated>loss-of-life

Advanced condition monitoring

Nature of developing fault conditions>> >Online>DGA

TCMSTT S

SCADAsystem

remote connection

sensors

local connection

Condition Based Monitoring of Transformers

Favoured monitoring systems

Translation>of>technological>features>to>existing>monitoring>systems>and>in-house>experiences

‘Micro’ monitoring system>> >Minimal>features>of>a>basic>condition>monitoring>system

‘Mini’ monitoring system>> >Improved>features>of>a>basic>condition>monitoring>system>> >Advanced>cooling>control

‘Flexible’ monitoring system>> >Adaptable>transformer>condition>monitoring>system>including>cooling>control

Condition assessment as service

Standard reporting>> >Guaranteed>basic>condition>monitoring>> >Annual>DGA>> >Monthly>data>acquisition>&>secured>data>storage>> >Customized>advice

Condition assessment>> >Guaranteed>basic>condition>monitoring>> >Annual>DGA>&>visual>inspection>> >Monthly>data>acquisition>&>secured>data>storage>> >Intermediate>standard>reporting>>> >Customized>advice>including>history>> >Alarm>dispatching>including>additional>condition>assessment>in>case>of>>

a>warning

Advanced condition monitoring>> >On>an>as-needed>basis>> >Other>available>diagnostic>tools>are>based>on>extensive>experience.

Contact CG Power Systems Belgium NVAntwerpsesteenweg>167B-2800>Mechelen,>BelgiumT>>+>32>15>283>333F>>+>32>15>283>300

CG Holdings Belgium NVServices>Divisionrue>Vital>Françoisse>220B.P.>1581>B-6000>Charleroi,>BelgiumT>+32>71>441>020F>+32>71>470>189>

belgium@cgglobal.com>->www.cgglobal.com