Method for arranging 220 kV and 110 kV interval secondary devices
A technology of secondary equipment and layout method, applied in the electrical field, to achieve the effect of simplified and clear interconnection, saving of connection medium, and reduction of room area
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[0018] Example one
[0019] Both 220kV and 110kV substations use GIS power distribution devices. The 220kV, 110kV protection measurement and control, merging units, and intelligent units are lowered to the GIS room, and combined with the GIS local control part to form a GIS intelligent control cabinet. According to the specific equipment quantity of the interval, the 220kV GIS intelligent control cabinet is designed according to the scheme in Table 1, and Table 1 is the layout scheme of the GIS intelligent control cabinet.
[0020] Table 1
[0021]
[0022] In addition, 220kV GIS control cabinets need to reasonably design the cabinet layout, strengthen the distinguishing mark between dual equipment, and prevent misoperation.
[0023] This solution can bring the following benefits:
[0024] (1) Greatly reduce the number of screen cabinets in the secondary equipment room and reduce the area of the secondary equipment room;
[0025] (2) Save the number and total length of long-distan...
Example Embodiment
[0029] Example 2
[0030] Table 2 is the statistics of the number of screen cabinets after the screen cabinet group is optimized in the second embodiment.
[0031] Table 2
[0032] Serial number
[0033] If the 220kV substation adopts the conventional screen grouping scheme, about 108 screen cabinets are needed in the main control room. According to the optimized screen grouping scheme, only 60 screen cabinets are needed. The overall saving is 44%, saving 4 rows of screen cabinets and saving the main control room. Room area 99m 2 .
Example Embodiment
[0034] Example 3
[0035] The 220kV substation adopts AIS power distribution device. The 220kV bay group adopts a protection, measurement and control integrated device. With the lowering of the operation box, the cancellation of the hard pressure plate, operation handle and other equipment in the cabinet, there are only 2 protection, measurement and control devices + 2 combined units for a 220kV bay, so it is realized in space Arrangement in the cabinet with 1 screen. Table 3 shows the statistics of the number of screen cabinets after the screen cabinet group is optimized in the third embodiment.
[0036] table 3
[0037] Serial number
[0038] Serial number
[0039] The 220kV substation requires about 124 screen cabinets according to the conventional screen grouping scheme, and only about 91 screen cabinets according to the optimized screen grouping scheme. The overall saving is 27%, saving 3 rows of screen cabinets and saving room area of 69m 2 .
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