TDK Corporation presents EPCOS PhaseCap Energy – two new series of high power capacitors for power factor correction. These components are available with gas or resin-filled housings. Designed for voltages of 230 VAC to 690 VAC, they offer a reactive power of between 5 kvar and 33 kvar. The life expectancy of the B25674* series of gas-impregnated capacitors has been possible to extend by nearly 40% from 130,000 to 180,000 hours. The maximum permissible inrush current was also increased by 25% to 500 x IR. The new capacitors can be switched more frequently: the maximum number of switching cycles per year has been doubled from 7500 to 15,000. The maximum permissible operating temperature as per IEC 60831-1 has also been raised by 5 K to 60°C. The B25675* series of resin-filled capacitors features a long life expectancy of 200,000 hours and is likewise designed for a maximum operating temperature of 60°C and a maximum permissible inrush current of 500 x IR. Both series have increased energy density: For the 28 kvar / 440 V types, for example, this has been raised by more than 20% from 9.7 kvar/l to 11.8 kvar/l. This results in compact dimensions: The new PhaseCap Energy capacitors feature a diameter of between 75 mm and 125 mm, depending on the type, and a height of between 164 mm and 224 mm. PhaseCap Energy is equipped with an overpressure disconnector that isolates all three phases from the grid in the event of damage.
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