NWL has been providing specialized power supplies for industrial and research applications for over 40 years.

Expert design engineering,  vertically integrated manufacturing, and  extensive field support services—make us the supplier of choice for OEM and large end user projects. We tailor the product to your exact specifications, and align our production and support systems to meet your specific needs.

NWL is also a world leader in power supplies for large scale electrostatic precipitators. 

NWL power supplies are based on one of the technology platforms listed below. 

High Frequency Switchmode Supplies - PowerPlus™ Series -

• Single Unit Power Ratings from 30 to 110kW
• Parallelable to 400kW
• Output Voltages  from  30-150kVDC
• Series resonant operation at 50kHz

These products give the highest performance with the smallest size and weight.   The high frequency DC output minimizes ripple voltage to give a power factor above 0.9; average power is very close to peak power.  PowerPlus was originally designed to provide superior energization for electrostatic precipitators, but we've also developed versions for a variety of industrial applications.

Mid Frequency Switch Mode Supplies – ML™ Series

• Power ratings from 100 to 500kW
• Parallelable to 2000kW
• Switching frequencies of 7kHz
• Input Voltages from 600-5kV Class
• Output voltages AC or DC
  • Oil FiIled from 30 to 150kV
  • Dry Type up to 30kV

This product is perfect for higher power applications requiring small size or tighter voltage control.  Click here for more detailed information on this product.

Linear 50/60 Hz. Supplies – Regulated SCR power supplies and unregulated transformer/rectifier sets.

• Power ratings from  50 to 4000kW.
• Input Voltages from 600 to 15kV Class
• Output Voltages AC or DC
  • Oil Filled from 30 to 150kV
  • Dry Type up to  30kV

These units offer the highest power ratings along with high reliability; low life cycle  cost, and are well suited for outdoor environments. Click here for more detailed information on this product. 

High Voltage Power Supplies - Forced Air or Water-cooled Systems for Large Motor Drive Applications

• Input Voltage - 15 kV class
• Output Power
  • Forced Air cooling - up to 9000 kVA
  • Water cooling - up to 30 MVA
• Customized Performance
  • Phase-shifted secondaries
  • Multiple secondaries
• Water Cooling expertise
  • Provide flow requirements based on available pressue and transformer performance
  • Provide guidance with respect to cooling system design and control