生活垃圾焚烧发电项目电气设备介绍.doc

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1、生活垃圾焚烧发电项目电气设备介绍Introduction of electrical equipments of MSW power plant1.1 主要电气设备 Main electrical equipments为了满足用电设备对电力的要求和保证电力系统运行的安全稳定和经济性，发电厂电气部分的主要工作是启、停机组，调整负荷，切换设备和线路，不断监视主要设备的运行，发生异常和故障时及时处理等。以上所有的工作都是靠操作主要电气设备来完成的。本厂主要电气设备如下：In order to satisfy the equipments requirement to power and the sa

2、fety and stability running of the electric energy system and the economic benefit, the priority mission of the electrical system is, start and stop the unit, adjust the load, switch between equipment and line, constant survey major equipment, quickly react to failure or unusual situation, etc. The a

3、bove missions are completed by operation of major electrical equipment. The main electrical equipment in this plant as follow:1.1.1 汽轮发电机 发电机是根据电磁感应原理而工作的一种旋转电气设备，它将机械能转变成电能。它与汽轮机直接耦合传动。发电机旋转方向从汽轮机端看为顺时针方向。Generator is one kind of rotate electrical equipment which follows the rule of electromagnetic

4、 induction, transferring mechanic energy into electric energy. t directly couples to the turbine and rotates. The direction of generator rotating is clockwise seen from the turbine end.型号power factor modelQFW-7-2 6600V额定功率rated power7000 kW功率因数power factor（COS）0.8额定定子电压rated stator voltage6600V额定定子电

5、流rated stator current765A额定转速rated rotation speed3000 r/min极数number of polar2相数number of phase3定子接法stator connection typeY1.1.2 柴油发电机 柴油发电机平时处于备用状态，当发生全厂停电事故时，自动控制系统会自动隔离厂用电母线和事故保安段母线，同时发出信号命令柴油发电机启动，柴油发电机自带控制系统，可以在10-15s内自动完成柴油启动、调速、升压、合闸一系列的过程，供电给事故保安段母线，维持基本的设备运转，保障锅炉和汽机及其他辅助设备的安全停机。It is usually

6、 in backup status. When the plant is under emergency shutdown, the auto control system will isolate the plant supply busbar and the security section, at the same time sends out signal to command the diesel generator to start, adjust speed, boost up pressure, shut valve and series of action, and supp

7、ly power to security section, keep basic equipment running in10 to15 second, guaranteeing the safety shutdown of boiler and turbine and other auxiliary equipments.1.1.3 电动机 电动机是根据电磁感应原理工作的一种旋转电气设备，它将电能转化为机械能，拖动电厂风机、泵类、压缩机等机械。根据电厂工艺的要求，其中一次风机、二次风机、引风机、给水泵和凝结水泵等设备采用变频调速控制，其拖动电机也采用相应的变频电机。Motor is a ki

8、nd of rotating electric equipment which follows the rules of electromagnetic induction. It transfers electric energy to mechanical energy, driving fans, pumps, compressors and other machines in the plant. According to the technical requirement, primary fan, secondary fan, induced draft fan, water fe

9、ed pump and condensing water pump adopt frequency control, their motors adopt converter motors in correspondence. 高压电动机 High voltage motor 低压电动机Low voltage motor1.1.4 主变压器 Main transformer变压器是一种静止电器，它利用电磁感应原理，把一种电压、电流的交流电能变成为同频率的另一种电压、电流的交流电能。Transformer is a static appliance. It follows the rules o

10、f electromagnetic induction, makes one kind of AC power into another kind with same frequency but different voltage and current.油浸式主变压器Oil-immersed main transformer1.1.5 厂用变压器 Plant transformer厂用变压器是专门给电厂自己供电用的。Transformer factory is specialized for power plant their power supply.三相环氧树脂浇注干式变压器three-

11、phase epoxy resin placing dry transformer型号ModelSCB10-2000/6.6额定容量Rated capacity2000KVA频率Frequency50Hz一次电压Primary voltage6.6KV22.5%二次电压Secondary voltage0.4KV相数Number of phase3一次电流Primary current175A二次电流Secondary curent2886.8A冷却方式 Cooling typeAF1.1.6变压器保护设备Transformer protection device变压器保护装置是集保护、监视、

12、控制、通信等多种功能于一体的电力自动化高新技术产品，是构成智能化开关柜的理想电器单元。The transformer protection device is set protection, monitoring, control, communication and other functions in the integration of electric power automation high-tech products, are the ideal intelligent switchgear electrical unit.1.1.7 33 kV高压柜 33 kV high vo

13、ltage cabinet开关柜本体The body of switch cabinet1型式Type KYN61-40.52额定电压Rated voltage333最高运行电压Maximum running voltage384额定电流Rated current6305相数Number of phases36额定频率Rated frequency50HZ7额定动稳定电流Rated motion stabilized current808热稳定电流（有效值）Hot stabilized current (virtual value)31.59热稳定电流持续时间Continuing time o

14、f hot stabilized current 4S10一分钟工频耐受电压（有效值）Voltage tolerance under 1 minute working frequency (virtual value)主绝缘对地Main insulate toward ground95断口间绝缘Insulate between cuts11011雷电冲击水平（全波、峰值）Class of thunder strike (full wave, peak)主绝缘对地Main insulate toward ground185断口间绝缘Insulate between cuts21512冷却方式Wa

15、y of cool down自冷Self cool down1.1.8 6.6 kV高压柜 6.6 kV high voltage cabinet按照本厂使用需要，6.6 kV配电系统可以装备KYN28A-12型中置移开式铠装金属封闭开关柜和XGN2-12固定式金属封闭式开关柜。According to the demand of this plant, the 6.6 kV power distribution system has KYN28A-12 type center withdrawing metal shielded closed switch cabinets and XGN2-12 fixed metal shielded closed switch cabinets. KYN28A-12 XGN2-121.1.9 低压配电柜 Low voltage