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【Electrical Version】Daily Question 20180717

2018-07-17View Original

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Analysis of dissolved gases in the oil of transformers of 330 kV and below shows that attention should be paid when the acetylene content exceeds ( ) volume percentage. a. 2×10-6; b. 5×10-6; c. 50×10-6; d. 150×10-6 Answer: b

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