supply of transformer oil testing equipments for randd oil testing laboratory at chennai and madurai supply of the following equipments with accessories 1) automatic bdv kit - 1 no. 2) fully automatic tan-delta and resistivity kit - 3 nos. 3) automatic ift kit - 1 no. 4) automatic acidity kit - 2 nos. , electrical items : , supply of automatic transformer oil electric strength (bdv) testing instrument with accessories, as per technical specification , supply of fully automatic transformer oil tan-delta and resistivity testing instrument with accessories, as per technical specification , supply of fully automatic interfacial tensiometer with accessories, as per technical specification , supply of fully automatic acidity (neutralization value) with accessories, as per technical specification