480 V Passive Harmonic Filters- GridHawk® Series

Partial Load Performance. On-board intelligence. Generator Compatible. IEEE-519

Product Overview

Non-linear loads such as variable frequency drives (VFDs) increase efficiency but also significantly pollute the power quality of the site and grid by introducing substantial harmonic current distortion (THID). The addition of CTM GridHawk® 480 V Passive Harmonic Filters will reduce harmonic current distortion to below 5%, ensuring compliance with IEEE-519 and will protect other on-site equipment. CTM GridHawk® series filters are designed to handle grid voltage distortion of up to 25% THVD, and they do not require drive control of capacitor contactors (simply customer connections).

In a severely distorted voltage environment, a saturation of GridHawk® 480 V Passive Harmonic Filters will correct the voltage distortion for the entire area, producing a cleaner grid.

RECOGNIZED UL 1446 INSULATION SYSTEM 

Typical Applications

Six-Pulse Rectifier (generator compatible)

Input Voltage / Frequency

480 V ±10% / 60 Hz

Current Range

GRIDHAWK®: 80 A - 630 A (Air Cooled) | 80 A - 950 A (Liquid Cooled) | GRIDHAWK® HD: 80 A - 525 A (Air Cooled) | 80 A - 740 A (Liquid Cooled)

Maximum THID

<5% @ Full Load | <8% @ 25% Load

Overload Capability

150% rated current for 1 minute (Air) | 200% rated current for 1 minute (Liquid)

Ambient Temperature Limits

Maximum: 50 °C (122 °F) (Air) | 65 °C (149 °F) (Liquid) | Minimum: -40 °C (-40 °F) (Air) | -40 °C (-40 °F) (Liquid)

Preventative measures should be taken to ensure the coolant does not freeze in the system.

Enclosure Options

Modular Panel (Liquid Cooled Only) | Integrated Panel (Air Cooled Only) | NEMA 3R Cabinet

Capacitor Contactors

0 - No contactor | 1 - Contactor for capacitor disconnect (customer control required) | 2 - Contactor for capacitor disconnect with automatic pick-up and drop-out (on-board intelligence)

GridHawk® Highlights

Excellent Partial Load Performance GridHawk passive harmonic filters not only meet IEEE-519 requirements under full load conditions, they also are designed for partial load performance, with THID levels maintained below 8% all the way down to 25% load. High-Reliability Capacitors CTM harmonic filters utilize high-reliability capacitors. Compared to the electrolytic capacitors used in competitors’ filters, CTM capacitors have higher capacitance stability with temperature, higher surge voltage ratings, and are low ESR for higher ripple current handling. Additionally, CTM capacitors are self-healing. All of these factors lead to boosts in system reliability and longevity. Meets IEEE-519 VFDs introduce harmonic current distortion on the grid that can cause problems for nearby equipment. The addition of a CTM harmonic filter reduces current distortion below 5% THID, meeting IEEE-519 requirements and eliminating nuisance tripping of the drive, nearby equipment, and circuit breakers. Simple Customer Connections (3 In / 3 Out) All fan power is derived internally, eliminating the need for customer-provided fan power. Additionally, with capacitor contactor option 200, control for capacitor contactors can be controlled within the filter, with automatic pick-up and drop-out. This feature greatly simplifies field installation, only requiring three input and three output power connections (temperature monitoring optional). Less connections minimizes the chance of improper installation, which has caused performance issues and failures in competitor filters.

  • IEEE-519 Compliance

  • Partial Load Performance

  • High-Reliability Capacitors

Non-linear loads such as variable frequency drives (VFDs) increase efficiency; however, they significantly pollute the power quality of the site and grid by introducing substantial harmonic current distortion (THID). The addition of a GridHawk harmonic filter reduces harmonic current distortion below 5%, ensuring compliance with IEEE-519 and protecting other on-site equipment. Furthermore, HPF filters perform well under partial load conditions, are generator compatible, and utilize high-reliability capacitors.

480 V Passive Harmonic Filters- GridHawk® Series