110kv/220kv voltage level composite apparatus and application thereof
A technology of combining electrical appliances and voltage levels, applied in electrical components, busbar/circuit layout, switchgear, etc., can solve the problems of short-term power failure of the main busbar, loss of the main busbar, inconvenient operation and use, and high equipment investment, reducing investment, The effect of reducing equipment cost and convenient maintenance
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[0040] Refer to the attached image 3 , 110kV / 220kV voltage level combined electrical appliances, including circuit breaker CB, transformer CT and outgoing isolation switch DS, transformer CT is a current transformer, there are two groups, including the first current transformer CT1 and the second current transformer CT2 ; One end of the outgoing isolating switch DS is connected to the outgoing bushing BSG1, and the other end is connected to the first current transformer CT1; the two sets of current transformers are placed on both sides of the circuit breaker CB and are electrically connected to the circuit breaker CB; the second current transformer CT2 Connect the bus side bushing BSG2; and use sulfur hexafluoride (SF 6 ) gas is an insulating medium, and the outgoing disconnector DS, transformer CT and circuit breaker CB of electrical connection are enclosed in SF 6 In the insulating gas chamber, the bus disconnector uses air as the insulating medium...
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