| 摘要 |
A compact indoor power distribution substation employs ambient-air-insulated high-voltage components, in lieu of gas-insulated components, for the distribution at 36 kV or less of electrical power from 60 kV to 245 kV high-voltage incoming lines. The substation is contained in a rectangular building having a ground floor and a cross-shaped upper floor. A corridor of sufficient size to accommodate a maintenance truck extends from a gate at the front to the back of the substation building, and this corridor divides the ground floor into two sides: each comprises in order, from front to back, a walled transformer room enclosing one or two primary transformers, a walled mid-voltage switch-gear room electrically connected to the mid-voltage side of the primary transformers and also to outgoing distribution lines, and a room, at the rear of the building, that receives an incoming high voltage line and that contains ambient-air-insulated breakers, bus banks and connect/disconnect switches that effect the electrical communication of the incoming lines to the primary transformer, via overhead bus bars that span a portion of the upper floor above the switch-gear rooms. A control room is located above the ground floor corridor at the rear end of the upper floor, and has no active electrical equipment beneath it.
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