{ "item_title" : "The Use of CTs in Measurement and Protection Systems", "item_author" : [" Álvaro Leonel Rodrigues Da Rosa Junior "], "item_description" : "The current transformers that are most commonly used on the market are manufactured with transformation ratios that have a nominal secondary current of five amperes and several characteristics depend on this current. The current transformer's function is basically to supply a group of equipment for measurement or protection without it being directly connected to the primary circuit. Through the theoretical study of current transformers and the calculations involved, a study will be carried out into the possible replacement of these current transformers with others that have a nominal secondary current of one ampere, in order to reduce the cost of buying a current transformer by simply reducing losses and using more modern measuring and protection equipment, without there being a decline in the quality of the current transformer's operation and that of the measuring and protection systems.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/6/20/683/895/6206838951_b.jpg", "price_data" : { "retail_price" : "40.00", "online_price" : "40.00", "our_price" : "40.00", "club_price" : "40.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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