Smoothing chokes 300 Hz


Smoothing chokes ED1W (300Hz) are usually applied in output circuits of three-phase rectifiers. They allow a significant reduction of pulsation of rectified output current. In practice, smoothing chokes are often combined with capacitors and form LC filters.
The following table lists only the sample parameters of some manufactured chokes. After the previous agreement there is a possibility to design chokes with parameters other than those given in the table

Technical data

Design Chokes are produced in accordance with standards:
EN/IEC 60076-6; EN/IEC 61558-2-20
Insulation class

F(155oC) - standard

Climatic class
/ Environmental class

C1/E0 - land design; C2/E1 - maritime design

Ambient temperature 40oC
Protection degree IP 00
Pulsation content <= 10% (standard)
Pulsation frequency 300 Hz
Rated voltage up to 750 V (230 V standard)
Overload 110% In
Terminals screw terminal blocks or cable lugs or copper bus bars
Fastening by means of angles