RCS-978变压器成套保护装置
相关主题
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
ZL_YJBH1108.0708
RCS-978 系 列 变压器成套保护装置
技术和使用说明书
(华东地区 500KV 版)
南瑞继保电气有限公司版权所有 2007.07（978XX 3.XX 版） 本说明书和产品今后可能会有小的改动， 请注意核对实际产品与说明书的版本是 否相符。本说明书只适用于 RCS-978 保护装置的新机箱新面板结构。 更多产品信息，请访问互联网：http://www.nari-relays.com
装置的技术参数 ............................................................................................................ 7 2.1 2.2 2.3 机械及环境参数 ..................................................................................................... 7 额定电气参数 .........................................................................................................7 主要技术指标 .........................................................................................................7
-I -
目
1 1.1 1.2 1.3 1.4 2
录
概述 ............................................................................................................................... 1 应用范围 ................................................................................................................1 性能特征 ................................................................................................................1 新功能和新特点 ..................................................................................................... 2 保护配置 ................................................................................................................4
源自文库
3.15 TA 、 TV 异常判别原理 .........................................................................................20 3.16 其它异常判别 ................................................................................................... 20 4 硬件原理说明 ..............................................................................................................21 4.1 4.2 4.3 4.4 4.5 5 硬件结构图 .......................................................................................................... 21 装置面板布置 .......................................................................................................22 装置接线端子 .......................................................................................................22 结构与安装 .......................................................................................................... 27 插件排列说明 .......................................................................................................27
6
附录 A 差动保护整定计算 .......................................................................................... 36 6.1 6.2 比率差动 ..............................................................................................................36 零序比率差动 .......................................................................................................39
定值内容及整定说明 ................................................................................................... 28 5.1 5.2 装置参数定值单 ................................................................................................... 28 RCS-978C 定值单 ...............................................................................................29
3
保护工作原理 ..............................................................................................................10 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 装置起动元件 .......................................................................................................10 稳态比率差动保护 ................................................................................................ 11 励磁涌流判别原理 ................................................................................................12 TA 饱和的识别方法 ..............................................................................................12 差动速断保护 .......................................................................................................12 差回路的异常情况判别 ........................................................................................12 过激磁的判别 .......................................................................................................13 稳态比率差动的动作逻辑 .....................................................................................13 工频变化量比率差动 ............................................................................................ 14 零序比率差动保护 ............................................................................................ 15 过流保护 .......................................................................................................... 16 零序方向过流保护 ............................................................................................ 16 过激磁保护 .......................................................................................................17 阻抗保护 .......................................................................................................... 18
-I -
7
附录 B 后备保护整定计算 .......................................................................................... 41 7.1 7.2 7.3 7.4 7.5 复合电压闭锁方向过流 ........................................................................................41 零序过流 ..............................................................................................................42 变压器不接地运行时的后备保护 .......................................................................... 43 自耦变压器的中接点零序电流保护 ......................................................................44 阻抗保护 ..............................................................................................................44
RCS-978 系 列 变压器成套保护装置
技术和使用说明书
(华东地区 500KV 版)
南瑞继保电气有限公司版权所有 2007.07（978XX 3.XX 版） 本说明书和产品今后可能会有小的改动， 请注意核对实际产品与说明书的版本是 否相符。本说明书只适用于 RCS-978 保护装置的新机箱新面板结构。 更多产品信息，请访问互联网：http://www.nari-relays.com
装置的技术参数 ............................................................................................................ 7 2.1 2.2 2.3 机械及环境参数 ..................................................................................................... 7 额定电气参数 .........................................................................................................7 主要技术指标 .........................................................................................................7
-I -
目
1 1.1 1.2 1.3 1.4 2
录
概述 ............................................................................................................................... 1 应用范围 ................................................................................................................1 性能特征 ................................................................................................................1 新功能和新特点 ..................................................................................................... 2 保护配置 ................................................................................................................4
源自文库
3.15 TA 、 TV 异常判别原理 .........................................................................................20 3.16 其它异常判别 ................................................................................................... 20 4 硬件原理说明 ..............................................................................................................21 4.1 4.2 4.3 4.4 4.5 5 硬件结构图 .......................................................................................................... 21 装置面板布置 .......................................................................................................22 装置接线端子 .......................................................................................................22 结构与安装 .......................................................................................................... 27 插件排列说明 .......................................................................................................27
6
附录 A 差动保护整定计算 .......................................................................................... 36 6.1 6.2 比率差动 ..............................................................................................................36 零序比率差动 .......................................................................................................39
定值内容及整定说明 ................................................................................................... 28 5.1 5.2 装置参数定值单 ................................................................................................... 28 RCS-978C 定值单 ...............................................................................................29
3
保护工作原理 ..............................................................................................................10 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 装置起动元件 .......................................................................................................10 稳态比率差动保护 ................................................................................................ 11 励磁涌流判别原理 ................................................................................................12 TA 饱和的识别方法 ..............................................................................................12 差动速断保护 .......................................................................................................12 差回路的异常情况判别 ........................................................................................12 过激磁的判别 .......................................................................................................13 稳态比率差动的动作逻辑 .....................................................................................13 工频变化量比率差动 ............................................................................................ 14 零序比率差动保护 ............................................................................................ 15 过流保护 .......................................................................................................... 16 零序方向过流保护 ............................................................................................ 16 过激磁保护 .......................................................................................................17 阻抗保护 .......................................................................................................... 18
-I -
7
附录 B 后备保护整定计算 .......................................................................................... 41 7.1 7.2 7.3 7.4 7.5 复合电压闭锁方向过流 ........................................................................................41 零序过流 ..............................................................................................................42 变压器不接地运行时的后备保护 .......................................................................... 43 自耦变压器的中接点零序电流保护 ......................................................................44 阻抗保护 ..............................................................................................................44