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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

Active Publication Date: 2010-04-14
CEEC JIANGSU ELECTRIC POWER DESIGN INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These integration schemes are relatively innovative methods in the integration of secondary equipment in domestic digital pilot stations. At the same time, they have achieved certain results in information sharing and space saving. There is still a lot of room for optimization and integration

Method used

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  • Method for arranging 220 kV and 110 kV interval secondary devices
  • Method for arranging 220 kV and 110 kV interval secondary devices
  • Method for arranging 220 kV and 110 kV interval secondary devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Both 220kV and 110kV substations of 220kV adopt GIS power distribution devices. The 220kV, 110kV protection measurement and control, merging unit, and intelligent unit are lowered to the GIS room, and they are combined with the GIS local control part to form a GIS intelligent control cabinet. According to the specific number of equipment in the interval, the 220kV GIS intelligent central control cabinet is designed according to the scheme in Table 1, and Table 1 is the layout plan of the GIS intelligent central control cabinet.

[0020] Table 1

[0021]

Number of cabinets

quantity

Cabinet layout

220kV

GIS

2 sides

Cabinet 1: including 2 intelligent units, operation outlet pressure plate, operation handle, simulation

Wiring screen, etc.;

Cabinet 2: including 2 sets of protection measurement and control devices, 2 sets of merging units, etc.

110kV

GIS

1 side

Including 1 protection measur...

Embodiment 2

[0030] Table 2 is the statistics of the number of screen cabinets after the screen cabinets are optimized and grouped according to the second embodiment.

[0031] Table 2

[0032] serial number

[0033] If the 220kV substation adopts the conventional panel scheme, about 108 panel cabinets are needed in the main control room, and according to the optimized panel scheme, only about 60 panel cabinets are needed, and the overall saving rate reaches 44%, saving 4 rows of panel cabinets and saving the main control room Room area 99m 2 .

Embodiment 3

[0035]220kV substation adopts AIS power distribution device. The 220kV interval group adopts an integrated protection, measurement and control device. With the lowering of the operation box, the removal of hard pressure plates, operating handles and other equipment in the cabinet, there are only 2 protection, measurement and control devices + 2 merging units left in a 220kV interval, so it is realized in space. 1 Arrangement in the panel cabinet. Table 3 is the statistics of the number of screen cabinets after the screen cabinets are optimized and grouped according to 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 assembly scheme, and only about 91 screen cabinets according to the optimized screen assembly scheme, with an overall saving of 27%, saving 3 rows of screen cabinets and saving room area of ​​69m 2 .

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Abstract

The invention discloses a method for arranging 220 kV and 110 kV interval secondary devices, which is characterized in that 220 kV and 110 kV use a protection-measurement-control-in-one device at intervals; and simultaneously, intelligent units are placed downwards, and the protection-measurement-control device and a merging unit are arranged inside the same screening cabinet. By sufficiently integrating the secondary devices on functions and space, the method leads the devices to have independent functions, simplified and clear mutual connection and reasonable arrangement. The prioritizationscheme of the method includes that the secondary devices with the same interval are in centralized arrangement inside one or two panel cabinets, the prioritization scheme not only enables each interval secondary device to be more centralized, easy to be installed, debugged and controlled, but also is favorable for reducing the area of a main control room, and simultaneously saves the number and the overall length of connecting media.

Description

technical field [0001] The invention relates to a secondary equipment layout method, in particular to a 220kV and 110kV secondary equipment layout method, and belongs to the field of electrical technology. Background technique [0002] The layout scheme of 220kV and 110kV secondary equipment in the digital substation is generally: the intelligent unit is lowered to the field terminal box or arranged on the spot in the GIS central control cabinet. The merging units of several intervals are combined in the main control room separately or combined with the switchboard. The protection measurement and control device is similar to the conventional station. For the 220kV interval, the 220kV protection cabinet in the conventional station usually adopts a 2-sided screen cabinet due to the existence of equipment such as operation boxes, hard pressure plates, and operating handles. In domestic digital pilot stations, 2-sided screen cabinets are also usually used. Arrangement, 220kV li...

Claims

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Application Information

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IPC IPC(8): H02B1/04H02B1/24H02B13/035
Inventor 孙纯军苏麟娄悦巫怀军朱东升秦华王哲
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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