TDD reduction to 5% or better at Full Load
Meets IEEE-519 1992
Improves true power factor - improves energy efficiency
System-applied - MCC & Switchboard
Power quality had degraded over time due to the increased use of non-linear loads. The IEEE-519 standard for harmonic distortion was developed to address this problem. Utilities are now mandating that this standard be followed.
Variable frequency drives and other types of non-linear loads take the incoming power from the utility and modify it for more efficient use within a wide range of applications. The conversion process creates current and voltage distortion.
If non-linear loads represent a significant portion of the entire installed load, this distortion begins to cause problems throughout the electrical system:
Transformer and distribution equipment overheating
Random breaker tripping
Sensitive equipment may fail completely
Poor power factor
The H5 active harmonic filter actively monitors the load current, reacting to changes in load almost instantaneously, while returning true power factor to near unity:
Virtual real time correction of the non-linear current
Synchronization of the current and voltage waveforms
Always attempting to achieve unity power
Never allowing for leading power factor
By actively monitoring the line or load current, the H5 harmonic filter determines the nature and quantity of harmonic currents in the system and cancels the same by injecting equal amounts of harmonic currents opposite in phase. A state-of-the-art high speed DSP controller and a pulse width modulated (PWM) IGBT based power converter help to provide virtual real time compensation of non-linear load demanded by VFDs and other applications. H5 also inherently tries to synchronize the line current with its voltage resulting in near unity displacement power factor. Thus, H5 provides solutions for both reactive current and harmonic current compensation.
The H5 active filter provides a cost effective, efficient solution allowing the user to meet IEEE-519 requirements. Using harmonic analysis software, TCI can help customers meet IEEE-519. Typical applications include:
Wastewater treatment plants
Commercial buildings
Hospitals
The H5 active filter can be a better overall system solution when compared to large, expensive 18 pulse VFD’s or multiple passive drive-applied filtering:
Save money
Save space
Reduce energy losses
This bus-applied filter design can be directly connected to the power bus in standard MCC and Switchboard configurations. As with other bus-applied designs, impedance must be installed on the load side of the H5 filter.
TDD Reduction to 5% or better at Full Load Power Factor Correction to less than or equal to .98 lagging
Power Factor Improved to near Unity
Response time of less than 8 ms to step load changes
Additional filters can be added to increase correction capability
Units can be paralleled without any calibration
Self-Commissioning Installation
Modular design
Harmonic Cancellation to the 50th harmonic
The H5 active harmonic filter is a very sophisticated, stable, and effective solution for harmonic and reactive power compensation.