Vigilance Control Device (vcd) To Be Used In 25 Kv Ac Tap Changer Locomotive As
per Rdso Spec. No. Rdso/2008/el/spec./0025/rev. 5, March - 2010 With
amendment No.1 & Rdso Letter No. El/3.1.14, Dt. 04.10.11 & 11.11.11foot Switch
as Per Clw Drg. No. Clw/es/