The concept of multiple receiving ends HVDC systems is described in this paper. Based on PSCAD/EMTDC, a simulation model of multiple receiving ends in series connection mode has been established, with ...

This article first introduces two implementation methods of Virtex-7 series FPGA reconfiguration, and then combines two implementation methods according to their characteristics, proposes an online ...

The Illinois Railway Museum has added two former Amtrak diesels — an F40PHR and SDP40F — to its collection. Dynamic Rail Preservation, or DynaRail, has donated F40PHR No. 231 and SDP40F No. 644. The ...

Price: $34.98 Era: Mid-1960s to 2000s (varies based on paint scheme) Manufacturer: Wm. K. Walthers Inc., 5601 W. Florist Ave.