翻译好----P-E07 升压站及厂用电受电(移动变-升压站-启备变-6kV).doc

Indonesia T J AWAR AWAR 2 350MW Power Plant Project Commissioning Procedure of 150kV Switchyard and Auxiliary Power Section Energizing 150KV 升压站及厂用电部分送电调试程序升压站及厂用电部分送电调试程序 No P E07 CUSTOMER PT PLN PERSERO PT PLN JASA SERTIFIKASI EPC CONTRACTOR SCP JO Northeast Electric Power Research Institute Co Ltd Liaoning Dongke Electric power Co Ltd Rev DescriptionPreparedCheckedApprovedDate 1 2 3 4 5 NEPRI Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure I Compilation Basis of the Guidance 1 Indonesia T J AWAR AWAR 2 350MW power plant project commission contract 2 Design diagrams of China United Engineering Corporation 3 The design specifications operation and maintenance instruction assemble manual and correlation diagram paper material of relevant manufactories 4 Contract given by proprietor and minute of relevant meeting 编制依据编制依据 1 印尼 Tanjung AWAR 发电站 2 350MW 机组工程调试合同 2 中国联合工程公司设计图纸 3 各设备厂家的设计说明 运行维护手册 装配手册以及相厂家的关图纸文件资料 4 业主提供的合同及相关会议纪要 Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure II Catalogue NEPRI 1 1 1 GENERALGENERAL 1 1 2 2 OBJECTIVEOBJECTIVE 2 2 3 3 ENERGIZINGENERGIZING RANGERANGE 2 2 4 4 PRECONDITIONPRECONDITION 3 3 5 5 ENERGIZINGENERGIZING OFOF MOBILEMOBILE TRANSFORMERTRANSFORMER 5 5 6 6 ENERGIZINGENERGIZING OFOF 150KV150KV SWITCHYARDSWITCHYARD 5 5 7 7 ENERGIZINGENERGIZING OFOF SSTSST 5 5 8 8 ENERGIZINGENERGIZING OFOF 6KV6KV COMMONCOMMON SECTIONSECTION 6 6 9 9 ENERGIZINGENERGIZING OFOF 6KV6KV WORKINGWORKING SECTIONSECTION 6 6 10 10 SAFETYSAFETY MEASUREMEASURE 7 7 11 11 SYSTEMSYSTEM DIAGRAMDIAGRAM 1313 Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 1 of 9 1 General 2 350MW coal fired generating units shall be installed in T J AWAR AWAR power plant which is provided with 150kV distribution equipment Four circuits are led out from such equipment and then connected with the Indonesia 150kV system A 3 2 CB wiring mode is used for 150kV distribution equipment Two generating units are stepped up via a main transformer and then switched in 150kV busbar The entire power plant is provided with one startup backup transformer as the startup and backup power supply for the units of the power plant which is connected via the busbar of 150kV distribution equipment 150kV distribution equipment is arranged outdoors in a middle sized form while CBs are dually arrayed Each string of incoming and outgoing line circuit occupies 2 intervals The main transformer and the outgoing line set in Circuit 1 form one complete string and then the string is arranged in two intervals the incoming line of the startup standby transformer and the outgoing line set in Circuit 1 form one complete string and then the string is arranged in two intervals the main transformer in Circuit 1 and the urban supply transformer outgoing line as well as transformers are arranged in the interval of a complete string and occupies two intervals Both ends of the busbar are provided with a busbar earthing switch Two 350MW turbo generator units are switched in 150kV distribution equipment in a connection unit form of generator transformer bank The outgoing end of the generator and the outgoing bushing at the end of a neutral point are equipped with four groups of current transformers the outgoing end of the generator is equipped with three groups of potential transformers and one group of surge arresters the neutral point of the generator is earthed via the secondary resistance of a single phase earthing transformer The generator and the main transformer are connected by using continuous enclosure type isolated phase busbar A high voltage station transformer and an excitation transformer are connected from between the generator and the low voltage side of the main transformer A static self shunt system is used for the excitation of the generator Two voltage levels of 6 3kV and 400 230V are used in the station service power system The rated voltage of a medium voltage electric motor is 6kV and the rated voltage of a low voltage electric motor is 380V 220 2 350MW coal fired generating units are installed in T J AWAR AWAR power plant According to the load statistics of electrical equipment in all process systems of the power plant each generating unit is provided with one high voltage station transformer which is used to supply power for electrical equipment for the unit plant The power supply at the high voltage side of the high voltage station transformer Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 2 of 9 are connected through a branch from an enclosed busbar between the generator of the generating unit and the main transformer while the power supply at the low voltage side are connected with 6kV switchgear of the generating unit by using common enclosure busbar The main building is provided with 6kV common busbar section Both the power for the common system of the power plant and the production auxiliary system are supplied by 6kV common section The power supply for the 6kV common section is connected via a startup backup transformer whose low voltage side is connected with the switchgear for the 6kV common section by using common enclosure busbar Main technical parameters are as follows Start up Standby transformer Model SFFZ 50000 150No load loss 40 kW Rated voltage ratio 150 8 1 25 6 3kVLoad loss 211 5kW Rated power 50 31 5 31 5MVANo load current 0 1 Rated frequency 50HzSound level 75dB Number of phases Three phasesPartial discharge 100pC Voltage regulation mode OLTC Earthing mode of neutral Directly H V Resistance neutral grounding L V Connection symbol YN yn0 yn0 d11Cooling type ONAN ONAF Impedance voltage 21 2 Objective 2 1Check the operation performance of relevant primary equipments under rated voltage 2 2Check the relevant protection measurement control and signal loop 2 3Supply power to auxiliary power section for unit commissioning 3 Energizing range The power energizing range of the proposal is as followed see the main electrical connection diagram The whole 150kV switchyard should be energized by the mobile transformer and then the power would be sent to 6kV common sections 6kV working sections through the startup standby transformer The energizing equipments are as follows a Mobile transformer b 150kV switchyard busbar CB DS CT PT arrester c SST Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 3 of 9 d 6kV common section A and B e 6kV working section 1A and 1B If necessary adjustment should be made for the energizing proposal according to the practical situation 4 Precondition 4 1 The installation and commissioning of the substation primary equipment in the energizing range should be finished The inspection and acceptance is qualified and the acceptance reports are complete 4 2 The installation and commissioning of the startup standby transformer should be finished and the relevant test should be finished All the inspection and acceptance is qualified and the acceptance reports are complete 4 3 The installation and commissioning of the 6kV section primary equipment in the energizing range should be finished The inspection and acceptance is qualified and the acceptance reports are complete 4 4 The characteristic test withstand voltage test and insulation test of all the electrical equipments should be qualified affirmed 4 5 The relevant protection control measurement and signal loops have been commissioned and confirmed qualified 4 6 Confirm that on load tap changer cooling system and temperature measuring device of relevant transformers are all in good condition and the tap of the transformers should be at the rated position 4 7 The commission of the CB protection and the transformer protection should be finished and the tripping test should be all right The inspection and acceptance is qualified and the operation condition is ready 4 8 The setting values of CB protection the transformer protection and the auxiliary power protection are all right according to the setting values paper 4 9 The operation state of mobile transformer CB is all right 4 10 The commissioning of the NCS DCS system should be finished as well as the function test The operation condition is ready 4 11 In the 150kV switchyard the communication device fire fighting device illumination device should be complete and the safety passageway should be smooth 4 12 The fencing and warning marks in the 150kV substation the 6kV switchgear room and the transformer area should be complete 4 13 The fencing ground and illumination of transformer site should be all right And the Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 4 of 9 earthing of transformer body is no problem 4 14 During the energizing test operators should be sent to 150kV substation the 6kV switchgear room and the transformer site Monitor the operation station of the equipment and the communication device should be no problem 4 15 Fire proofing blocking for all the cable cabinets should be finished and there must be enough fire fighting equipment 4 16 For the first time of the transformer energizing test put the firefighting system into operation If the fire fighting system is not ready a fire truck should be ready near the transformer 4 17 There should be enough fire extinguishers especially for electrical use in the transformer area and the switch room 4 18 The phase sequence of electrical primary equipments should be all right 4 19 The DC power system and UPS system should be running normally 4 20 All the test instruments should be ready 4 21 The secondary loop of CT and PT should be checked 4 22 The metering system of relevant equipment should be qualified 4 23 The ground connection of electrical device should be all right and the ground resistance should be qualified 4 24 The names and the numbers of the electrical equipment should be clear 4 25 The communication device fire fighting device illumination device should be complete and the safety passageway should be smooth 4 26 The 6kV common busbar to Unit 2 should be dismantled and there must be enough safety measures for isolation and insulation 4 27 The h v side connection of 1 2 main transformer should be dismantled and there must be enough safety measures for isolation and insulation 4 28 Before the energizing test the manufacturer of relevant equipment should be present and some spare parts are necessary 4 29 Before the energizing test the technical clarification must be finished 4 30 Before the energizing test the commissioning proposal should be approved and the operation order should be finished by operation team according to the proposal 4 31 Confirm that all the CB DS and ES of 150kV and 6kV system are open and the control power and the motor power are off 4 32 Confirm that all the 150kV and 6kV PT should be in service positon Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 5 of 9 5 Energizing of mobile transformer 5 1Inform P3B that the energizing condition of 150kV switchyard is ready 5 2After mobile transformer energizing measure the amplitude and phase sequence of Babat transmission line 1 PT 6 Energizing of 150kV switchyard 6 1Close the DS 5B3L 5B32 5B31 6 2After being permitted close the CB 5B3 energizing 150kV BUS B and then check its operation performance 6 3Measure the voltage amplitude and phase sequence of 150kV BUS B PT 6 4Measure the voltage phase sequence between 150kV BUS B PT and Babat 1 PT 6 5Close the DS 5A11 5A12 5AB11 5AB12 5B11 5B12 and CB 5A1 5AB1 6 6After being permitted close the CB 5B1 energizing 150kV BUS A and then check its operation performance 6 7Measure the voltage amplitude and phase sequence of 150kV BUS A PT 6 8Measure the voltage phase sequence between 150kV BUS A PT and Babat 1 PT 6 9Check the synchronization voltage of NCS panel for Bay 1 6 10 Close the DS 5A21 5A22 5AB21 5AB22 5B21 5B22 and CB 5A2 6 11 After being permitted close the CB 5AB2 energizing 1 MT PT and then check its operation performance 6 12 Measure the voltage amplitude and phase sequence of 1 MT PT 6 13 Measure the voltage phase sequence between 1 MT PT and Babat 1 PT 6 14 Check the synchronization voltage of NCS panel for Bay 2 6 15 After being permitted close the CB 5B2 6 16 Close the DS 5A41 5A42 5AB41 5AB42 5B41 5B42 6 17 After being permitted close the CB 5A4 energizing 2 MT PT and then check its operation performance 6 18 Measure the voltage amplitude and phase sequence of 2 MT PT 6 19 Measure the voltage phase sequence between 2 MT PT and Babat 1 PT 6 20 Check the synchronization voltage of NCS panel for Bay 4 6 21 After being permitted close the CB 5AB4 5B4 7 Energizing of SST 7 1Close the DS 5AB31 5AB32 Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 6 of 9 7 2After being permitted close the CB 5AB3 energizing SST 7 3Check the operation performance of SST SST PT and 6kV common section incoming PT 7 4Measure the voltage amplitude and sequence of SST PT and 6kV common section A B working incoming PT 7 5Close the DS 5A31 5A32 7 6Check the synchronization voltage of NCS panel for Bay 3 7 7After being permitted close the CB 5A3 8 Energizing of 6kV common section 8 1After being permitted close the working incoming CB of 6kV common section A 601A checking the operation state of the busbar 8 2Measure the voltage amplitude and sequence of the 6kV common section A busbar PT 8 3After being permitted close the working incoming CB of 6kV common section B 601B checking the operation state of the busbar 8 4Measure the voltage amplitude and sequence of the 6kV common section B busbar PT 9 Energizing of 6kV working section 9 1After being permitted close the 1 2 standby incoming CB of 6kV common section A 6012A checking the operation state of the cable and PT 9 2Measure the voltage amplitude and sequence of the standby incoming PT of 6kV common section A the 6kV working section 1A standby incoming PT 9 3After being permitted close the standby incoming CB of 6kV working section 1A 610A checking the operation state of the busbar 9 4Measure the voltage amplitude and sequence of the 6kV working section 1A busbar PT 9 5After being permitted close the 1 2 standby incoming CB of 6kV common section B 6012B checking the operation state of the cable and PT 9 6Measure the voltage amplitude and sequence of the standby incoming PT of 6kV common section B the 6kV working section 1B standby incoming PT 9 7After being permitted close the standby incoming CB of 6kV working section 1B 610B checking the operation state of the busbar 9 8Measure the voltage amplitude and sequence of the 6kV working section 1B busbar PT Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 7 of 9 10 Safety measure 10 1 Pay attention to the information marks and never get into the dangerous area 10 2 All of the technicians should keep their safety helmets on right and wear regulated clothes 10 3 Observe the operation order regulation and the working order regulation strictly to prevent the electrical misoperation 10 4 Fire proofing blocking for all the cable cabinets should be finished and there must be enough fire fighting equipment 10 5 Every engineer should concentrate on the test If not permitted never take any action 10 6 Before the energizing test construction unit production unit and commissioning unit should check the primary secondary equipment together During the test any abnormal state should be informed immediately and every engineer should follow direction 10 7 For security the commissioning engineers are in charge of the first time operation equipments and the running equipments should be operated by the operators 10 8 During the test if some abnormal state the test procedure must stop and should not be start without clear reason Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 8 of 9 一 概述 T J AWAR AWAR 电站安装 2 350MW 燃煤发电机组 电站内设 150kV 配电装置 出 4 回线路接入印尼 150kV 系统 150kV 配电装置采用采用 3 2 断路器接线方式 2 台发 电机组经主变压器升压接入 150kV 母线 全厂设置 1 台启动 备用变压器 作为电站机组 启动和备用电源 由 150kV 配电装置母线引接 150kV 配电装置采用屋外中型布置型式 断路器采用双列布置 每一串的进出线回 路占用 2 个间隔 1 回主变压器与 1 回出线组成 1 个完整串布置在 2 个间隔内 1 回启动 备变进线与 1 回出线组成 1 个完整串布置在 2 个间隔内 1 回主变压器与城市供电变压器 出线及变压器布置在完整串的间隔内 占用 2 个间隔 在母线的两端设置母线接地开关 2 台 350MW 汽轮发电机组 以发电机变压器组单元接线型式接入厂内 150kV 配电 装置 发电机中性点经单相接地变压器二次侧电阻接地 发电机与主变压器之间的连接 采用全连式离相封闭母线 高压厂用变压器和励磁变压器由发电机与主变低压侧之间引 接 发电机励磁采用静态自并励系统 厂用电系统采用 6 3kV 和 400 230V 两级电压等级 中压电动机额定电压 6kV 低压 电动机额定电压 380V 220 T J AWAR AWAR 电站安装 2 350MW 燃煤发电机组 根据电 站各工艺系统用电设备的负荷统计 确定每台发电机组设置 1 台高压厂用变压器 为单 元机组的用电设备供电 高厂变高压侧电源从本机组发电机和主变压器之间的封闭母线 上支接 低压侧采用共箱封闭母线与本机组 6kV 开关柜连接 主厂房内设置 6kV 公用母 线段 电站公用系统负荷及生产辅助系统用电均由 6kV 公用段供电 6kV 公用段电源由 启动 备用变压器引接 启动 备用变压器低压侧采用共箱封闭母线与 6kV 公用段开关柜连 接 主要技术参数如下 启备变 型号 SFFZ 50000 150空载损耗 40 kW 额定电压比 150 8 1 25 6 3kV负载损耗 211 5kW 额定容量 50 31 5 31 5MVA空载电流 0 1 额定频率 50Hz噪声水平 75dB 相数 三相局部放电 100pC 调压方式 有载调压 中性点运行方式 高压侧直接接地 低压 侧电阻接地 连接组标号 YN yn0 yn0 d11冷却方式 ONAN ONAF Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 9 of 9 阻抗电压 21 二 实验目的 2 1检查相关一次设备在额定工况下运行正常 2 2检查相关保护 测量 控制 信号二次回路正确 2 3厂用段母线送电 为机组调试做准备 三 受电范围 建议的通电范围如下 看主电气接线图 整个 150kV 升压站通过移动变压器进行充 电 然后电将通过起备变输送到 6kV 公用段及 6kV 工作段 充电设备如下 a 移动变压器 b 150KV 升压站 母线 断路器 隔离开关 电流互感器 电压互感器及避雷 器 c 起备变 d 6KV 公共段 A B e 6KV 工作段 1A 1B 如有必要 将根据实际情况对此受电范围作出调整 四 试验前提条件 序号内容 1 开关站受电范围内的一次设备安装调试完毕 验收合格 实验报告完整 具备充电条件 2 起备变安装调试结束 设备交接实验完毕 所有检查验收合格 并且报 告完整 具备充电条件 3 6kV 系统受电范围内的一次设备安装调试结束 验收检查合格 并且报 告完整具备充电条件 4 受电范围内相关的设备特性试验 耐压试验 绝缘试验等均已完成并且 验收合格 5受电范围内相关设备的保护 操作 测量 信号回路正确并验收合格 6 受电范围内相关变压器有载调压开关 冷却系统 温度测量装置运行良 好 变压器分接头均在额定位置 7 断路器保护 变压器保护的调试结束 跳闸试验准确无误 经验收检查 合格并具备投运条件 8断路器保护 变压器保护和厂用段定值按照正式定值单执行 Indonesia T J AWAR AWAR 2 350MW Power Plant Project Electrical Commissioning Procedure Page 10 of 9 9移动变压器断路器运行状态正常 10 NCS DCS 受电范围内的设备及功能试验应调试完毕 经验收检查合 格 具备操作条件 11150kV 升压站通讯 消防及照明设施完善齐全 现场各通道畅通 12150kV 变电站的隔离 警示标志 6kV 开关室和变压器区域完整