西门子 GIS 8DN8-II

145 kV全封闭 组合电器 型号： 8DN8 - II Gas-Insulated Switchgear Type 8DN8 - II up to 145 kV

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Power Transmission and Distribution

145 kV全封闭组合电器 GIS发展过程 Progress of Development of 145 kV GIS110 100 [%] 90 80 70 60 50 40 30 20

房间尺寸Size of building所需空间Space requirement 包装Packing volume

10 068 Page 2 70

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94 96 98 年份 Power Transmission and Distribution 92

145 kV全封闭 组合电器 型号： 8DN8 - II Gas-Insulated Switchgear Type 8DN8 - II up to 145 kV

图示(Photo): 德国Werk Böhlen,变电站 Germany Werk Böhlen,s/s 7间隔, 单母线 7Bays, Single busbar 145 kV / 31,5 kA / 2500 A

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Power Transmission and Distribution

145 kV全封闭组合电器 进出线间隔断面图 Gas-Insulated Switchgear 145 kV Switchgear Bay7 2M

4

M

3

10

82 7M

1

58 6

6 5 1 4 9 39

1 断路器灭弧室with

Cicuit-breaker interrupter unit Spring-stored-energy operating mechanism

2 弹簧机构、断路器控制单元

6 快速接地开关 7 电流互感器 8 电压互感器 9 电缆终端

Make-proof earthing switch (High Speed) Current transformer Voltage transformer Cable sealing end

circuit-breaker control unit

3 带隔离、接地开关的I段母线 Busbar I with disconnector and earthing switch 4 带隔离、接地开关的II段母线 Busbar II with disconnector and earthingswitch

10 集成就地控制柜 Integrated local control cubicle

5 带隔离、接地开关的出线模块

Page 4 Outgoing module with disconnector and earthing switch

Power Transmission and Distribution

145 kV 全封闭组合电器 主要技术参数 145kV GIS Technical parameter

额定电压 Rate Voltage 额定频率 Rate Frequence 额定工频耐压(1分钟) 275 kV 额定雷电冲击耐压(1,2/50 µs)

145 kV 50 / 60 Hz

Rated power frequency withstand voltage (1 min)

650 kV

Rated lightning impulse withstand voltage (1,2/50 µs)

额定母线电流 Rate busbar current 3150 A 额定馈线电流 Rate Feeder current 3150 A 额定开断电流 Rate Breaking Current 40 kA 额定短时耐受电流 Rated short-time current 40 kA SF6年漏气率 SF6 Leakage < 0.5 % 间隔宽 Bay width 800 mm 间隔高 Bay Height 2850 mm 间隔深 Bay depth 3500 mm 间隔重 Bay Weight 3t

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Power Transmission and Distribution

145 kV全封闭组合电器 H 型布置 145 kV GIS H-Scheme Arrangement

3500

6700

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Power Transmission and Distribution

145 kV全封闭组合电器 双母线系统 145 kV GIS Double Busbar System

3500

6400

Page 7

Power Transmission and Distribution

145 kV全封闭组合电器 模块结构 145 kV GIS Modular Structure

十字模块 断路器 CBCross module

延伸模块Extention modules

终端模块Termination module

电压互感器 PT

三相Three phase module

电缆Cable module(如：插拔式 plug in type)

接地开关 EV

单相Single phase module

变压器Transformer module

电流互感器 CT

伸缩节Expandsion Joint

分相模块 1/3-相spliting module

出线套管Outdoor Bushing

避雷器Surge Arrester

Page 8

Power Transmission and Distribution

145 kV全封闭组合电器 断路器模块 145 kV GIS CB Module

弹簧机构、断路器控制单元Spring-stored-energy operating mechanism with circuit-breaker control unit

绝缘筒内装绝缘拉杆Post insulator on the inside operating rod

断路器灭弧室Self-compression interrupter unit

支柱绝缘子Post insulator

Page 9

Power Transmission and Distribution

自能型灭弧室灭弧原理 Self-Compression Type Interrupter Unit Arc Quenching Principle

1 2 3 4 5 1 2 3 4 5 6 静触头支座Contact support 灭弧喷口Quenching nozzle 主触头Main contact 弧触头 Arcing contact 接触气缸Contact cylinder 压气缸Puffer cylinder

6

合闸位置Breaker in “on” position

分闸: 主触头分离Opening: Main contact open

分闸: 弧触头分离Opening: Arcing contact open

分闸位置Breaker in “off” position

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Power Transmission and Distribution

145 kV全封闭组合电器 弹簧储能机构Gas-Insulated Switchgear 145 kV Spring-Stored-Energy Mechanism1 8 2 3 4 5 9 10 11 12 13 14 6 15 16 7 17分闸位置 (合闸弹簧储能) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 合闸脱扣Closing release 凸轮 Cam plate 连杆Coupling linkage 操作杆 Operating rod 合闸弹簧连杆 Closing spring connecting rod 分闸弹簧连杆Opening spring connecting rod 合闸弹簧Closing spring 手动储能柄Hand-wound mechanism 储能机构Charging mechanism 储能轴Charging shaft 曲柄Roller lever 合闸缓冲器Closing damper 转轴 Operating shaft 分闸缓冲器Opening damper 分闸脱扣Opening release 操作机构箱体Mechanism housing 分闸弹簧Opening spring Power Transmission and Distribution

“off” position (Closing spring loaded)

合 on 分 off

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145 kV 全封闭组合电器 三位置开关原理Gas-Insulated Switchgear 145 kV Principle Disconnector and Earthing Switch

中心位置Neutral position

隔离开关闭合Disconnector closed

外壳Conductor 接地开关静触头Fixed contact of theearthing switch

动触头 绝缘盆子Bushing

绝缘距离Isolating distance

Moving contact

接地开关闭合Earthing switch closed

Page 12

Power Transmission and Distribution

145 kV 全封闭组合电器 分相模块 1-/3-相 Gas-Insulated Switchgear 145 kV Splitting Module 1-/3-phase

Page 13

Power Transmission and Distribution

145 kV 全封闭组合电器 接地开关 (插入式)Gas-Insulated Switchgear 145 kV Earthing Switch (Pin Type)顶视 Top view

3

2

14

侧视 Side view

1 2 3 4

静触头 动触头 转动轴 导体

Fixed contact Contact pin Operating shaft Conductor

Page 14

Power Transmission and Distribution

145 kV 全封闭组合电器 电流互感器 Gas-Insulated Switchgear 145 kV Current Transformer

屏蔽电极Grading electrode

导体

“ 一次绕组”

Conductor “primary winding”

二次绕组 绝缘盆子Bushing