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Training course on energy efficiency in SMEs - engine-sme.eu

Training course on energy efficiency in SMEs - engine-sme.eu

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6. Rec<strong>on</strong>nect to STAR<br />

‘STAR’ c<strong>on</strong>necti<strong>on</strong> reduces the voltage across the<br />

motor w<strong>in</strong>d<strong>in</strong>gs to 58 per cent of the delta<br />

c<strong>on</strong>necti<strong>on</strong>.<br />

In Star c<strong>on</strong>necti<strong>on</strong> the motor then <strong>on</strong>ly gives <strong>on</strong>ethird<br />

torque. Do<strong>in</strong>g this can make useful <strong>energy</strong><br />

sav<strong>in</strong>gs. Competent <strong>in</strong>dustrial electrical eng<strong>in</strong>eers<br />

can easily perform this task.<br />

Warn<strong>in</strong>g: <strong>on</strong>ly re-c<strong>on</strong>nect <strong>in</strong> star if the motor is<br />

loaded at 40-45 per cent of its rated power.<br />

www.eng<strong>in</strong>e-<strong>sme</strong>.<strong>eu</strong>

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