K-Factor
These type QL transformers have passed the UL K-factor testing program. K-factor is a unit measuring a transformer’s ability to withstand the harmonics content of a system. Midwest offers K=4, K=13, K=20 and K=30 transformers.
Features and Benefits
- K-Factor rated for nonlinear loads
- UL listed
- Complies with DOE-2016 efficiency standard
- Full-width aluminum electrostatic shield standard
- 200% neutral standard
- Effective coupling capacitance 30pF
- Common mode noise attenuation 120dB
- Normal mode noise attenuation 30dB
- Available in 150C, 115C, 80C and low-noise models
- NEMA 2 powder-coat drip-proof enclosure is standard. Weathershield kit is available for conversion to NEMA 3R outdoor
Applications
K=4
- Welders
- Induction heating
- HID lighting
- Fluorescent lighting
K=13
- Telecommunications equipment
- Classroom facilities
- Healthcare facilities
- Production lines
- SCR variable speed drives
K=20
- Office buildings
- Data processing equipment
- Adjustable speed drives
- Computer installations
- Instrumentation
K=30
- Computer installations
- Office buildings
- Data processing equipment
- Adjustable speed drives
- Instrumentation
