Selecting MatrixTM Filters
Filters for variable torque AC drives rated 7.5 Hp and above should be selected for a filter output current rating greater than or equal to the motor current rating. If the motor current
rating is not available, use the NEC motor current rating.
Filters for variable torque AC drives rated 2 – 5 Hp should be selected for a filter output current rating greater than or equal to 105% of the motor current rating. If the motor
current rating is not available, select on the basis of 105% of the NEC motor current rating.
Filters for variable torque AC drives rated less than 1.5 Hp should be selected for an output current rating greater than or equal to 110% of the motor current rating or 110% of the NEC
motor current rating.
For constant torque, AC and DC drive applications operating from six pulse rectifier front ends selected a filter current rating according to application engineering note “Matrix
Filter Operation in Constant Torque Applications with Six Pulse Rectifiers” or consult MTE engineering. For phase controlled DC drive applications, select filter current rating per
application note “Matrix Filter with Phase Controlled DC Drivers.
Where a single filter is used to feed multiple drives, the output current rating of the filter should be selected to equal the total current rating of the individual drives when
calculated according to the instructions above.
Enclosure Options
Matrix Harmonic Filters are available in a variety of enclosure options. The standard enclosure meets the requirements of both Nema 1 & Nema 2, while another option meets Nema 3R. For
maximum flexibility, Matrix filters are also offered as open panel construction for integration into customer panels and enclosures.
|
){kind=link}
){kind=link}