By Kumar 1999-04-01T10:00:00
IN A 44h changeover during February, Indian Railways put into operation its largest route-relay interlocking, to control the junction at Old Delhi. Designed by Siemens using 11000 Series K-50 relays, it controls 1122 routes on 28 running lines, with 238 signals and 188 sets of points. The station currently handles ...
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