view product galleryPQI 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.
All PQI Distribution TransFilters™ result in:
- 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
Our Type DY and Type DV Distribution TransFilters™ provide flexibility to engineer almost any solution; however, we also offer specialty harmonic mitigation transformers and filters designed to offer distinct advantages in certain applications.
| PQI Product | Typical Application | Typical Industry | Additional Benefits Within Specialty Application |
| DV | High K-Factor loads | All | - Capable of developing 12-, 18-, 24- and 36-pulse primary systems |
| DD | Motor drive loads | All |
- Provides isolation from upstream transients |
| SY | 240V server loads | Data Centers |
- Maintains voltage bandwidth required by rack-mounted servers |
| GY | 240V gaming machine loads | Casinos | - Maintains voltage bandwidth required by gaming machines - Reduces servers' load current by 15% and l2R losses by 25% |
|
Z Filter |
High K-Factor loads (l0) |
Casinos, Call Centers, Commercial Buildings |
- Reduces neutral-to-ground voltages to <4V at nonlinear loads (<1V for Mini-Z) |
| PV | High K-Factor loads | All | - Capable of developing 12-, 18-, 24- and 36-pulse primary systems |
| PY | Medium K-Factor loads | All | - Capable of developing 12, 18, 24 & 36 pulse primary systems |