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3.7.1. CAPACITOR BANK WITH AUXILIARY VOLTAGE OBTAINED FROM AN INTERNAL

AUTOTRANSFORMER

Does not require connection of the external neutral. The label indicates U

aux

/f … internal

Figure 4: Auxiliary power supply with autotransformer.

3.7.2. CAPACITOR BANK WITH AUXILIARY VOLTAGE OBTAINED BETWEEN

PHASE-NEUTRAL

Requires the connection of the external neutral to terminal N (see Figure 5 and Figure 7 )

The label indicates Uaux/f … (control voltage)

Figure 5: Auxiliary power supply with neutral.

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Circutor OPTIM P&P Series Manuale Utente Pagina 12