Inductors placed at the input and output of electrical equipment, can provide protection and improve performance. Line Reactors absorb many power line disturbances which could damage or shut down your inverters, variable speed controllers or other voltage sensitive equipment

• Rex Line Reactor designs conform to UL, CSA, and IEC international standards.
• Three phase AC line reactors when used as input or output filters on inverter electronic speed drive applications provide several significant benefits.
• When applied as Line reactors placed ahead of an AC inverter drive, the reactor absorbs many power line disturbances which could damage or shut down the inverter. Additionally, the Line reactor protects sensitive surrounding equipment from transients associated with quick switching of IGBT devices in the drive.
• When applied as Load reactors placed on the output of the AC inverter drive, the reactor provides two principal benefits. The load reactor will slope the edges of PWM waveforms applied to long cables and conductors, thereby reducing the dv/dt and stress due to uneven voltage distribution. However, load reactors used alone are only partially effective in reducing the peak voltage appearing at the end of long lines. For conductor lengths (between the drive and motor) in excess of 50 feet, the Rex Motor Guarding Transient Filter is recommended.
• Long lines, particularly long cables, have capacitive effects producing charging currents in the order of 10 to 20 amperes which can cause spurious protective trips in small or low power drives. Reactors reduce cable charging current, producing higher reliability of operation and freedom from nuisance tripping.
• Rex Motor Guarding Transient Filters, incorporate reactors, resistors, and capacitors. When these devices are placed on the output of adjustable frequency drives they protect the motor windings from the damaging voltage spikes associated with the fast switching effects of IGBT's and long lines and cables.

   

  Features	Benefits
  Easy to install Smaller and less expensive than isolation transformers Reduce harmful surge currents Available in open or NEMA 1 enclosed construction Conforms to CSA, UL and IEC standards Built to ISO9001 quality levels Available in a wide range of standard ratings	Reduce electrical line noise Extend the life and protect SCR's and transistors Filter power line disturbances Limit short circuit currents Important in achieving compliance to IEEE 519 Reduce harmonic distortion Reduce nuisance tripping Reduce telephone influence factor (TIF)