Green Insulating Fluids provide some Challenges. ByI.A.R. Gray-Oilwatch Transformer Services Oilwatch Transformer Laboratories have adapted their testing protocols to accommodate ester fluid transformers by integrating specialized standards and analytical techniques...
At the CIGRE Southern Africa 2023 Conference Ian Gray presented a paper on his experience related to the issues on the lack of reliability of these LV-GSUs. Ian Gray(MSAChem I No 51954) As we start to see a lot of new applications for transformers due to the...
By I.A.R. Gray(Senior Consultant-(MSAChem I No 51594)Oilwatch Transformer Service The Hillside aluminium smelter is located in Richards Bay, 200 km north of Durban, KwaZulu-Natal province, South Africa. The operation is fully owned and operated by BHP Billiton....
By I.A.R. Gray(Senior Consultant-(MSAChem I No 51594)Oilwatch Transformer Service INTRODUCTIONLoad tap changers (OLTCs) are a crucial element of utility networks, as they must operate in a precise fashion in order to maintain a constant voltage output. This must be...
By Ian Gray( Oilwatch Transformer Services)MSA Chem I No 51954 Introduction.The primary purpose of transformer maintenance is to ensure the internal and external parts of the transformer and accessories are kept in good condition and “fit for purpose” and able to...
By I.A.R. Gray-Oilwatch Transformer Services What are PCBs? PCBs (polychlorinated biphenyls) are a group of synthetic oil-like chemicals of the organochlorine family. It was first described in technical literature in 1881 and commercial production commenced in the...
