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Final Report Lot 9: Public street lighting - Amper

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can overcome this problem. This power factor corrector feature is standard for electronic<br />

control gear with lamp power above 22 Watt as required by EN 61000-3-2.<br />

According to a study in France (ADEME (2006)) 9% additional energy loss can be caused<br />

in the distribution grid by aged power factor capacitors.<br />

Parameter ‘Ballast Maintenance Factor’ BMF (see chapter 1):<br />

This parameter takes into account that magnetic ballasts are ageing (capacitor) and cause higher<br />

power consumption. So BMF < 1 for magnetic ballasts. For electronic ballasts BMF = 1.<br />

(BMF does not yet take other benefits of electronic ballasts into account as power stabilization<br />

and longer lamp lifetime, see also 6.1.7.)<br />

Table 25: Ballast Maintenance Factor (BMF): parameter values applied in this study<br />

Cat. F Cat. M Cat. S<br />

magnetic electronic magnetic electronic magnetic electronic<br />

ballast ballast ballast ballast ballast ballast<br />

BMF 0.95 1 0.95 1 0.95 1<br />

95

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