|
| |
Capacitors in metallized polypropylene film for power electronics
DC FILTERING
For the application “filtering in direct” the capacitor is excited
by two voltages. One is the direct current that can arrive up
to 10000 Vdc and the other is the alternated current (ripple
voltage) that has limited values, (usually =300Vac) but the
frequencies can be in the region of kHz .
The very high frequency and the high values of the
capacitances, up to thousands of µF, generate currents, that
can also be hundreds of ampères.
MECO capacitors of the series CML 2 and CML 4 are
recommended for this application (DC-link).
This type of MECO capacitors can replace, in some cases,
the polarized electrolytic capacitors.
Typical application of these two MECO capacitors is in drivers
for motors of various dimensions.
|
