HarmonicGuard Series Drive-Applied Filter

HG7 Contactor Option Now Available!

HG7 Harmonic Filters, when applied at the drive, provide a low impedance path for the major harmonic currents demanded by the drive. This greatly reduces the amount of harmonic current flowing through the distribution system and results in improved power factor, lower RMS currents, lower harmonic current distortion, lower harmonic voltage distortion, and increased system capacity.

•  Limited to 7% Distortion (typical results of 5 - 6% TDD)

• UL Listed

• Superior Performance at 100% and 50% Load

  • THD levels are consistently held low
  • 100 HP at 100% = 5.8% TDD; 50% = 7.6%

• High Quality Capacitors: Designed, built and tested specifically for use in harmonically rich environments

• Easy Installation

  • Fits easily into motor control centers and ships ready to install

• Uninterrupted Operation

  • The drive continues to operate in the event of an HG7 shut-down

• Flexible Options

  • Power Monitor Option
  • Component Package Option

Performance

Before HG7		After HG7

The HG7 not only limits current distortion to less than 7% TDD, it also improves true power factor. Multiple package options will allow TCI customers to choose the right filter configuration for the application. Since every power system is different, harmonic mitigation requirements will differ, and even IEEE limits change based on the system loading characteristics. The HG7 product returns the power of choice to the customer, allowing for different configurations to achieve different performance and monitoring results.

Where Drives are a Significant Portion of the Load
Prime candidates for filtering are installations of variable frequency drives or adjustable speed devices in facilities where those drives represent a significant portion of the load, or when specifications call for limited harmonics (like IEEE 519, 1992). Filtering would also benefit any application that utilizes sensitive electronic equipment that may be susceptible to harmonic distortion, such as capacitors, control devices, motors, etc. Some industrial examples include printing presses, extruders, machining and pulp and paper. Commercial applications include waste water treatment, pumping and cooling, and HVAC.

HG7 Drive-Applied Harmonic Filters have been proven to be the most effective harmonic distortion mitigation technique available for drives.

Reduce Harmonic Distortion
In a typical industrial facility, where one-half or more of the load may be non-linear loads, resulting distortion may cause sensitive equipment to fail. In commercial/municipal buildings, meeting IEEE-519, 1992 is often a critical requirement of power distribution systems.