bids are invited for auxiliary relays at srikakulam substation auxiliary relay schneider model relraas8220 1 or alstom or abb or seimens make , dc changeover relay schneider model relvd1x220 or alstom or abb or seimens make , master trip relays schneider model relbaxbh4220 1 2 nos or alstom or abb or seimens make , voltage selection relay schneider model relbaxbl8220 1 or alstom or abb or seimens make , ct switching relay schneider model relbaxbl8220 1 and relbaxbl4220 1 or alstom or abb or seimens make , ct switching relay schneider model relbaxbl4220 1 or alstom or abb or seimens make , contact multiplication relay schneider model relbaxbl16220 1 and relbaxbl4220 1 or alstom or abb or seimens make , master trip relays schneider model relbaxbh16220 and relbaxbh4220 or alstom or abb or seimens make , master trip relays schneider model relbaxbh16220 or alstom or abb or seimens make , tripcoil supervision relay schneider model relvd3x220 or alstom or abb or seimens make , contact multiplication relay schneider model relraas8220or alstom or abb or seimens make , ct switching relay schneider model relbaxel8220 and relbaxel4220 or alstom or abb or seimens make procurement of auxiliary relays equivalent to erl make total quantity : 24