TECHNOLOGY DEMONSTRATION
VEHICLE

Power Quality internationAL, inc. is pleased to announce that it has developed the PQI HarMitigatorÔ Technology Demonstration Vehicle, which is fully capable of demonstrating the benefits of harmonic current reduction in an electrical distribution system and transformer performance under non-linear load conditions.

This fully equipped demonstration vehicle can be used as the basis for a one and a half-hour presentation on power quality and efficiency fundamentals and a half- or full-day seminar on the Benefits of Harmonic Current Reduction.

Harmonic Mitigation & Transformer Efficiency Demonstration Vehicle

The agenda for the full-day seminar on the Benefits of Harmonic Current Reduction includes:

1. INTRODUCTION – The source, phase sequence and magnitude of harmonic currents in a modern electrical distribution system.
    

2. SYSTEM PERFORMANCE – A review of system performance outcomes under non-linear load conditions.
    

3. POWER QUALITY – A review of power quality problems under non-linear load conditions.
    

4. POSITIVE- & NEGATIVE-SEQUENCE HARMONIC CURRENTS – Methods used to cancel positive- and negative-sequence harmonic currents in an electrical distribution system.
    

5. ZERO-SEQUENCE HARMONIC CURRENTS – Methods used to shunt zero-sequence harmonic currents in an electrical distribution system.
    

6. POWER QUALITY CLAIMS – An analysis of the claims made by various manufacturers regarding harmonic mitigation and power quality.
    

7. DEMONSTRATIONS
    

   7.1 Demonstrate a typical current waveform and harmonic profile produced by a switch-mode power supply. 7.2 Demonstrate a typical current waveform and harmonic profile produced by the PQI Non-Linear Load Bank. 7.3 Demonstrate the effect of circuit length (impedance) on voltage distortion and neutral-ground voltage at the loads. 7.4 Demonstrate the effect of zero-sequence harmonic current reduction on voltage distortion and neutral-ground voltage at the loads. 7.5 Demonstrate the effect of zero-sequence harmonic current injection into a conventional transformer. 7.6 Demonstrate the effect of zero-sequence harmonic current injection into a Type ‘DV’ Distribution TransFilterÔ. 7.7 Calculate the effect of harmonic currents on conventional and Distribution TransFilterÔ under various non-linear load conditions. 7.8 Discuss the various methods used to measure transformer losses and efficiency under linear and non-linear load conditions. 7.9 Measure the effect of harmonic currents on conventional and Distribution TransFilterÔ under non-linear load conditions.

8. EFFICIENCY CLAIMS – An analysis of the claims made by various manufacturers regarding the efficiency of their transformers and their measurement method.
    

9. FINANCIAL ISSUES – A review of the financial issues that result from harmonic current injection into an electrical distribution system.
    

10. FINANCIAL BENEFIT – Calculate the financial benefits that occur when substituting or replacing a conventional transformer with a Distribution TransFilterÔ.

Demonstrations can be arranged by calling PQI at (888) 539-7712 or by contacting our local representative.