bids are invited for 7140990083 - design, engineering, supply, erection, testing and commissioning of 2 x 10 kva 12 pulse parallel ups system and solid state bypass stabliser with inbuilt isolation transformers at output as per annexures 4.1, 5.1,5.2 & 5.3and buy back of existing ups capatiy : 2 x 10 kva, model s400 and make : libertt as per annexure 4.1net value = (supply value + installation charges) - (buy back value) , 7140398254 - supply, erection, testing and commissioning of battery bank, vrla, 12v/cells, 65ah, capacity, 26 cells/ with anti corrosive powder coated ms rack and all necessary accessories like supports, stands, fasteners for connection as per annexures 4.1, 5.4 buyback of existing battery bank capacity - 65 ah, type: vrla, model: nxt-65-12, make: exide. no. of cells - 26, volt per cell :12v , year of installation: 2015.net value = (supply value + installation charges) - (buy back value) total quantity : 1