MFC Kit Instructions
4.0 Installation
21
open ventilation area underneath the reactor and large open exhaust vents above the reactor to
ensure proper cooling. In the case of forced convection cooling, these reactors will work as long as
sufficient air movement is present to prevent excessive ambient temperatures.
Larger sine wave filter kits with current ratings greater than 540 A should be cooled with forced
convection, and care should be taken to direct cooling air flow across the reactor coils. Baffles may
be required to ensure cooling air entering the enclosure does not short circuit directly to the exhaust
and not cool the reactor. If cooling air is directed through the ducts in a coil parallel to the core, it
will help cool the reactor. Designers should be careful to avoid mounting reactors close to walls
where there is no airflow.
Capacitors are more sensitive to high temperatures than reactors, so filter capacitors should not
be mounted within a four inches of reactor coils where radiation from the coil would heat the
capacitor. Capacitor surface temperatures should remain less than 65°C under worst case
operation conditions.
Operating a sine wave filter at a higher carrier frequency decreases ripple current in the sine wave
reactor. This decreases reactor internal power dissipation which decreases reactor temperatures.
TCI recommends customers verify intended cooling systems with drive output full current testing to
ensure cooling provided is sufficient for the sine wave filter kit components.
Summary of Contents for MFC A
Page 2: ......
Page 5: ...2 Replacement Parts 56 Factory Contacts and Tech Support 56 ...
Page 60: ......
