Products
The HMT (Harmonic Mitigating Transformer) is a three phase transformer with 0° or -30° displacement between the primary and the secondary. The HMT is used to reduce current harmonics on the primary side of a transformer and voltage distortion on the load. A single HMT reduces the flow of triplen harmonics, 3rd, 9th, 15th, 21st, etc. into the transformer primary. Used together on the same power line a 0° and -30° HMT will also reduce the 5th and 7th harmonics. These transformers are designed to reduce voltage distortion when powering non-linear loads.
Applications
- For use in environments with non-linear loads such as computers and variable speed drives
- Where there is high computer, printer and communication equipment usage, and stable operation is necessary
- Medical facilities including hospitals
- Data centers
- Office buildings
- Schools
Specifications
- DOE-2016 efficiency
- 3 phase, 60 Hz
- 480V primary
- Zig-Zag secondary design voltage 208Y/120V
- 0º and -30º phase shifts
- 15 – 1,500 kVA range
- Aluminum windings
- K-13 standard
- 150°C temperature rise
- 220°C insulation class
- NEMA 3R enclosure
- Heat-cured ASA-61 gray powder coating finish
- Electrostatic shield
- Cores of high quality electrical steel
- UL / cUL Rated
Features, Functions, Benefits
- Space saving design for easy handling and installation
- Termination lugs provided for ease of installation through 75 kVA
- Vibration isolation pads provide quiet operation
Standards
- Meets DOE-2016 standard for energy efficiency
- Built in accordance with NEMA, ANSI, UL and CSA standards
- UL and CSA Listed
Options and Accessories
- 50 Hz
- Other voltages available
- Copper windings
- K-4 and K-20
- Dual electrostatic shield
- 115°C, 80°C temperature rise
More Power Quality Solutions
To see information on our Harmonic Suppression System (HSS™), patented technology that eliminates 3rd harmonic currents, see this page.
