supply of 3 phase measuring and monitoring relay3 phase measuring and monitoring relay,3 phase measuring and monitoring relay rated voltage 1000 volts ac +/- 15% ,50 hz, 2 5 va @ 1000 v ac as per rdso specification no. rdso/pe/spec/ac/0184-2015 (rev-1) and as per rcf spec-edts 073,ammendment-5, make :- m/s dold cat no.-bd9080 or equivalent of m/s carlo gava zi or m/s abb (to be supplied with oems proof of purchase along with test certificate). spec. edts/0 73 revd [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]