泰安南开发区110kV变电站电气设计计算书.doc

1、目 录泰安南开发区110kV变电站电气设计ITaian Nan Zone 110kV Substation DesignII1 任务书11.1 原始资料11.2 设计内容及要求22 电气主接线设计22.1 电气主接线概述22.2 电气主接线的基本形式22.3 电气主接线的选择32.3.1 电气主接线方案32.3.2 电气主接线的确定33 变电站主变压器选择33.1 主变压器的选择33.1.1 变压器容量的选择33.1.2变压器绕组数量的选择53.1.3 变压器绕组连接方式的选择53.1.4变压器调压方式的选择53.1.5 变压器冷却方式的选择53.2 主变压器的最终确定54 无功补偿装置的选择

2、64.1无功补偿装置的选择64.1.1无功补偿装置类型的选择64.1.2 无功补偿装置容量的确定64.1.3 并联电容器装置的分组方式64.1.4 并联电容器装置的接线方式64.2 并联电容器装置的最终确定65 短路电流的计算75.1 短路的危害75.2 短路的形式75.3 短路电流的计算75.3.1 110KV侧母线短路电流计算85.3.2 35KV侧母线短路电流计算85.3.3 10KV侧母线短路电流计算96 电气设备的选择与校验96.1 概述96.2变压器110kV侧电气设备的选择与校验106.2.1 变压器110kV侧断路器的选择与校验106.2. 2 变压器110kV侧隔离开关的选择

3、与校验116.2.3 变压器110KV侧电流互感器和电压互感器的选择116.2.4 110kV母线选择及校验126.3 变压器35kV侧电气设备的选择与校验136.3.1 变压器35kV侧高压开关柜的选择与校验136.3.2变压器 35kV侧隔离开关的选择与校验146.3.3变压器35KV侧断路器的选择与校验146.3.4变压器35KV侧电流和电压互感器的选择与校验156.3.5 变压器35KV侧母线的选择与校验156.3.6 变压器35KV侧导线的选择与校验166.4 35kV母线出线侧电气设备的选择与校验176.4.1 35kV母线出线高压开关柜的选择与校验176.4.2 35kV母线出线

4、隔离开关的选择与校验176.4.3 35kV母线出线断路器的选择与校验186.4.4 35kV母线出线电流互感器的选择与校验186.4.5 35kV母线出线导线的选择与校验196.5 变压器10kV侧电气设备的选择与校验196.5.1 变压器10kV侧高压开关柜选择与校验196.5.2 变压器10kV侧隔离开关的选择与校验206.5.3 变压器10KV侧断路器的选择与校验206.5.4 变压器10KV侧电流互感器和电压互感器的选择与校验216.5.5 10KV母线的选择与校验226.5.6 变压器10KV侧导体的选择与校验226.6 10kV母线出线侧电气设备的选择与校验236.6.1 10k

5、V母线出线高压开关柜的选择与校验236.6.2 10kV母线出线隔离开关的选择与校验236.6.3 10kV母线出线断路器的选择与校验246.6.4 10kV母线出线电流互感器的选择与校验246.6.5 10kV母线出线导线的选择与校验257 继电保护258 防雷与接地方案的设计268.1 防雷保护268.1.1 直击雷保护268.1.2 侵入波保护268.2 接地装置的设计269 所用电的设计279.1所用变压器的接线形式279.2 所用变压器的选择27参考文献28致谢29Contents Abstract II1 Mission statement11.1 Sourcebook11.2 D

6、esign content and requirements22 Electric main wiring design32.1 Overview main electrical wiring32.2 The basic form of the main electrical wiring32.3 Main electrical wiring selection32.3.1 Main electric connection schemes32.3.2 Determination of main electrical wiring43 Select the main transformer su

7、bstation43.1 Select the main transformer43.1.1 Selection of Transformer Capacity43.1.2 The number of windings of the transformer selection53.1.3 Select the transformer winding connection mode63.1.4 Select the voltage regulating mode63.1.5 Select the transformer cooling mode63.2 Finalize the main tra

8、nsformer64 Select the reactive power compensation device74.1 Select the reactive power compensation device74.1.1 Reactive power compensation device type selection74.1.2 Reactive power compensation device capacity determination74.1.3 Grouping of shunt capacitors74.1.4 Wiring parallel capacitor device

9、74.2 Finalize the shunt capacitor means85 Calculation of short-circuit current85.1 Hazard short-circuit85.2 In the form of short-circuit85.3 Calculation of short-circuit current85.3.1 110KV side of the bus circuit current calculation105.3.2 35KV side of the bus circuit current calculation105.3.3 10K

10、V side of the bus circuit current calculation106 Selection and verification of electrical equipment116.1 Outline116. Select the check 110kV transformer side electric equipment126.2.1 Transformer 110kV circuit breaker selection and validation126.2. 2 110kV transformer side of the isolation switch sel

11、ection and validation136.2.3 110KV transformer side current and voltage transformers choice136.2.4 110kV bus selection and verification146.3 Selection and check transformer 35kV electrical equipment side156.3.1 35kV high voltage switchgear transformer side of the selection and verification156.3.2 Si

12、de of the isolation transformer 35kV switch selection and validation166.3.3 35KV transformer circuit breaker selection and validation166.3.4 35KV transformer side current and voltage transformer selection and validation176.3.5 35KV transformer side of the bus selection and validation186.4 35kV side

13、bus qualifying selection and verification of electrical equipment186.4.1 35kV high voltage switchgear bus qualifying selection and validation186.4.2 35kV busbar disconnectors qualifying selection and validation196.4.3 35kV busbar outgoing breaker selection and validation196.4.4 35kV busbar current t

14、ransformer outlet selection and validation206.4.5 35kV busbar outgoing wire selection and validation216.5 Selection and check transformer 10kV electrical equipment side216.5.1 10kV high voltage switchgear transformer side selection and verification216.5.2 Side of the isolation transformer 10kV switch selection and validation226.5.3 10KV transformer circuit breaker selection and validation226.5.4 10KV transformer side current and voltage transformers of selection and validation236.5.5 10KV bus selection and validation246.6 10kV side bus qualifying selection and verification of electrical equi