INTERFERENCE TO TELECOMMUNICATION INSTALLATIONS BY RAPID TRANSIT SYSTEMS
Power conversion by means of semiconductor elements, i. e. the use of thyristors in traction systems operating with dc or ac has resulted in new electromagnetic compatibility problems. While it has hitherto been possible to control the interference to telecommunication installations caused by the fundamental frequency and harmonics of the traction current without great difficulties, the growing number of harmonics may call for special measures to be taken. In addition, traction currents are also increasing due to the demand for higher acceleration and speed of trains, particularly of rapid transit systems in densely populated areas - a demand which can particularly be met by the thyristor technique. This paper examines the electromagnetic compatibility problem from both the viewpoint of the Railways and the telecommunication authorities. Moreover, measures for keeping the interference within tolerable limits are indicated.
- Presented at the IEEE International Electromagn Compat Symp Rec, New York, N.Y.
Institute of Electrical and Electronics Engineers3 Park Avenue, 17th Floor
New York, NY USA 10016-5997
- Buckel, R
- Riedel, H A
- Publication Date: 0
- TRT Terms: Communications; Interference; Propulsion; Railroad electrification; Rapid transit; Signaling; Thyristors; Vehicle power plants
- Old TRIS Terms: Propulsion controls; Thyristor control
- Subject Areas: Public Transportation; Railroads; Vehicles and Equipment;
- Accession Number: 00056798
- Record Type: Publication
- Source Agency: Engineering Index
- Files: TRIS
- Created Date: Jul 22 1981 12:00AM