K-FACTOR RATED TRANSFORMERS
Reducing Effects of Harmonic Currents
In today’s fast-paced electronic world, it’s critical that your power is stable and ready to go. K-Factor rated transformers help stabilize the variable demands of your electronic equipment. Items like laptops, printers, copiers and terminals all use switching mode power supplies for their operations. A K-Factor rated transformer helps modulate the harmonic distortion caused by non-linear loads or pulse loading.
Harmonic power usage impacts your electrical system by:
- Causing your neutrals in panel controls and transformers to run hotter than their rating
- Fuses & current breakers can fault prematurely
K-Factor rated transformers are designed to handle a degree of harmonic load currents without overheating. IEEE C57.10 outlines the calculation and classification of the different K-Factor segments, but the critical segments that Acutran designs for are 1, 4, 13, and 20.
|K-Factor 1||Motors, incandescent lighting, resistance heating, motor generators (without solid-state drives)|
|K-Factor 4||HID lighting, induction heaters, welders, UPS with optional input filtering, PLC, and solid-state controls|
|K-Factor 13||Multiple receptacle circuits in healthcare facilities, UPS without optional input filtering, production or assembly line equipment, schools and classroom facilities|
|K-Factor 20||SCR variable speed drives, circuits with exclusive data processing equipment, critical care facilities, hospital operating rooms|