You can over-correct the magnetic ballast by a series-connected capacitor. This is done in such a manner that the capacitive reactive power of the capacitor covers the inductive reactive power, which is generated by two magnetic ballasts. This type of connection is needed by several energy suppliers where the networks have audio-frequency of above 250HZ. Our lighting capacitors are reckoned for their continuous operation at 480V rms. We have manufactured our capacitors for operation at the temperatures of up to 100°C. The capacitor windings are submerged in special insulating oil, which gives protection against humidity.
Approved by VDE as "Type B" acc. to IEC/EN61049 and IEC/EN61048, our capacitors are available up to 9.6µF 480V rms.