RLW Reactor Users Manual
Data subject to change without notice 5-29-09 10 of 25
INSTR--30
Selection & Application Guide
The MTE World reactor (RLW) is an international product that is a low cost line side
alternative to the present line of MTE “
RL
” line/ load reactors. RLW’s are RMS current rated
impedance devices. Selection is based on the choice of inductance correlated to the
application motor full load amps, voltage and frequency and the number of phases. Use the
selection table based on input voltage and RMS load current to identify corresponding
reactor percent impedances. You may also pick from the NEC FLA motor selection table for
common voltages. For critical impedance selection based on specific HP or load currents
consult MTE applications engineering.
Single phase applications: The RLW like RL reactors may also be sized to protect single
phase drives. Please see MTE application
AN0120 for
details
For load side applications reactor current must be de-rated to 70% of the
reactors nominal current rating.
Choose the impedance level:
1.5% Minimum impedance for reduction of low level voltage transients.
RLW reactors may be used as a supplement to already installed reactors.
3% Helps minimize (95%) most drive nuisance tripping and faults caused by
over voltage and input line disturbances.
5% The MTE recommended value to protect drive components from transient
over-voltage prevents (99.9%) nuisance trips and offers limited harmonic
protection to input line power from drive induced harmonics.
