Io Filter™ Zero-Sequence Harmonic Filter for High K-Factor Loads

PQI has been on the leading edge of harmonic mitigation solutions longer than any other manufacturer in the industry. Our products are manufactured to the highest quality standards (ISO 9001), and our product designs have been proven highly effective in real-world scenarios. For these reasons, many engineers insist upon PQI for the most effective harmonic mitigation solutions.

• Reduced power costs
• Reduced penalty losses due to harmonic currents
• Reduced transformer heating and A/C loading
• Reduced THDv to less than 5% at nonlinear loads or motor drives
• Reduced losses in the loads, thereby reducing A/C requirements
• Improved switch-mode power supply’s "ride-through" capability
• Balanced primary phase currents
• Assured system compatibility with sensitive electronic loads
• Reduces neutral-to-ground voltages to <4V at nonlinear loads (<1V for Mini-Z)
• Increases general purpose (K-1) transformer capacity by up to 54%
• Protects upstream neutral conductor
• Increases feeder and bus capacity
• Balances feeder and bus phase currents (and branch circuit for Mini-Z)