Details: material and labour for filtration/ dehydration of transformer oil including checking di-electric strength of oil before and after filtration for transformers located in gtre area with suitable machine having filtration, heating and pumping facility to improve the dielectric strength / insulation value of oil complete all as specified and as directed.note : (i) di-electric strength of oil after filtration / dehydration shall not be less than 60 kv/min.(ii) the contactor shall take shut down orders in working before commencement of the work in writing from engineer-in-charge.(iii) the contractor shall ensure no wastage of existing transformer oil. (iv) the di-electric strength of oil shall be tested before and after filtration and test results shall be submitted to engineer-in-charge. (v) the contractor shall ensure that the conservator tank are full to its level before starting the dehydration. supply and filling new transformer oil for topping up the transformers duly filtered with f
Sector: Defense