Description

These reactive power controllers are designed to measure the reactive power of an installation by giving the necessary instructions for connection and disconnection of capacitors in order to maintain the desired cos φ. Controllers show in a 3-digit display the set-up or actual values. They show the cos φ, the total current and the harmonic distortion.
All controllers are commanded by a microprocessor that ensures an uniform ageing of contactors and capacitors by using a circular connection sequence which takes into account the time that each capacitor has been switched on (FIFO system).
Controllers can include a fully operational alarm relay that acts when the automatic capacitor bank can not reach the required cos φ in case of high harmonic distortion level, overcurrent and overvoltages. LED indicators show permanently capacitors steps that are connected.