APPLICATION OF THYRISTORS IN RAILWAY TECHNOLOGY: CONSEQUENCES AND REMEDIES. TESTS WITH A STATIC FREQUENCY CONVERTER FOR 50-16 2/3 HZ

The Swedish State Railways (SJ) have conducted several comparative measurements on the Moholm - Skovde line, using a prototype of a static frequency converter (power 6 MVA) During the tests the equivalent disturbing currents and the weighted longitudinal e.m.f. induced in telecommunication circuits were measured; for these tests, the test line was fed through the static converter or through rotary converters. When the feeding took place through the static converter, the levels of the disturbing current in the overhead contact system and the induced weighted longitudinal e.m.f. were raised. However, a lowering of the levels measured may be expected, after the filter for the static converter has been modified. On the three-phase side there are no adverse effects, as long as the power of the static converter is very small in comparison with the short-circuit power of the high voltage network. The SJ have ordered, for two sub-stations, two static converters each with a power of 15 MVA each.

• Supplemental Notes:
  • Restrictions on the use of this document are contained in the explanatory material.
• Corporate Authors:

  International Union of Railways

  Office of Research and Experiments
  Utrecht,   Netherlands 
• Publication Date: 1973-4

Media Info

• Features: Figures; Tables;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Communications; Diesel electric locomotives; Electric locomotives; Electric power conditioning; Interference; Locomotives; Propulsion; Rapid transit; Signaling; Thyristors; Vehicle power plants
• Old TRIS Terms: Propulsion controls; Question a122; Thyristor control
• Subject Areas: Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00052506
• Record Type: Publication
• Source Agency: International Union of Railways
• Report/Paper Numbers: A122/RP8/E
• Files: TRIS
• Created Date: Jun 24 1981 12:00AM