APF

Delta Active Power Filters continuously detect harmonic currents on industrial and commercial electrical systems and inject compensating current in real time, eliminating harmonics up to the 50th order and correcting power factor. With a response time under 0.1 milliseconds, APF protects transformers, cabling, and sensitive equipment from overheating and nuisance tripping, and is well suited to facilities with VFDs, automated production lines, cold storage, HVAC, and data centers.

View

Real-Time Harmonic Compensation

Delta Active Power Filter (APF)

Advanced active power filtering that continuously detects and compensates for harmonic currents, improving power quality and protecting critical electrical infrastructure. Eliminates harmonics up to the 50th order with dynamic reactive power compensation and sub-0.1-millisecond response, in a modular design that scales for future expansion while reducing resonance risk from capacitor banks.

View

Scaled Harmonic Filtering for Heavy Industrial Loads

Delta APF – High-Capacity Industrial Series

The same Delta Active Power Filter technology configured and scaled for heavy-duty facilities with large VFD banks, multiple production lines, or data-center-scale electronic loads. Delivered as part of Acuity's full-service engagement - site power quality analysis, system design, installation, commissioning, and long-term M&V - to match filtering capacity precisely to high-demand industrial environments.