supply of spares of vcb at barauni refinery , list of item ( s ) / work ( s ) as per tender documents , coil , closing w/ assy , 11kv , jyoti , coil , tripping w/ assy , 11kv , jyoti , micro switch ( 1no+1nc ) , jyoti , tripping shaft with spring , ( 4vc49-0051 ) , spur gear assembly , ( 4vc49-0018 ) , jyoti , pinion gear assembly , ( 4vc49-0091 ) , jyoti , trip catch assembly ( 4vc49-0244 ) , jyoti , closing catch assly . ( 4vc49-0150 ) , jyoti , mtr , spring charging , f/6 . 6kvjyoti vcb , cam shaft assembly ( 3vc49-0004 ) , vacuum interrupter , vk10j25 , jyoti , pds assembly , 27 , 4vc19-0027/01 , pole , vacuum interrupter , p/n:10m25 , coupling , jyoti vcb vk10m25a , 220dc , , busconductrlowr , jyoti vcb vk10m25a , 220dc , pds assembly , 03 , 4vc19-0027/03 , insulating stud assly . vk10m40a & vk10j25 , closing shaft with spring , ( 4vc49-0069 ) , bkr aux switch , vcb , 1250a , jyoti , 16 pin plug & socket , upper bus conductor 7 . 2kv , 2ka vcb , bus conductor upper ( 4vc13-0001 ) vk10j25 , bus conductor lower ( 4vc13-0004 ) vk10j25