Claritas Power System Solution [P] Ltd. Manufactures Auto or Fixed Type Detuned Filters. Claritas Power System Solution [P] Ltd. Is an ISO 9001:2000 and ISO 14001:2004 accredited company. The Auto or Fixed Type Detuned Filters are designed to use for power factor correction in systems where harmonics are generated by nonlinear loads. Each step of detuned filters consists of a capacitor and a series reactor connected in series. Detuned filter also removes lower order harmonics from the system to some extent.