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SF6 Gas underground substation maintenance systems price

300+ TOP SUBSTATION Multiple Choice Questions and Answers Which of the gas is used in gas insulated substation a) Nitrogen + SF6 b) Hydrogen + SF6 c) SF6 d) None of the above. 15. Which of the following bus-bars arrangement is more reliable and flexible a) Main and transfer bus scheme b) One-and-half breaker scheme c) Double main busbar scheme d) Single busbar scheme. 16.

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