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 equipment’s requirement to power and the safety 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 above 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 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.1.1.2 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 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 supply 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 kind 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 feed pump and condensing water pump adopt frequency control, theirmotors 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 of 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-phase epoxy resin placing dry transformer1.1.6变压器保护设备Transformer protection device变压器保护装置是集保护、监视、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 voltage cabinet1.1.8 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 power distribution cabinet本厂主厂房低压配电室需配备MNS型低压抽屉式开关柜，对厂用电源、厂用备用电源、事故保安电源进行分配、切换、控制、监视和保护，是全厂厂用电配电中心。
The low voltage power distribution house of the main plant building has MNS type low voltage withdrawing cabinet, to distribute, switch, control, survey and protect the plant power supply, plant power backup, emergency security power. It is the power distribution center of the whole plant use.1.1.10 现场动力箱Local power box按照本厂使用需要和功能的不同，在主厂房其他地方和其他车间分布着检修箱，现场动力箱，现场控制箱，对现场设备进行配电和控制。
According to the difference of need and function, set up repair box, local power box, local control box at other places of main building and other workshops, to distribute power and control the local equipments.1.1.11 发电机保护柜Protection box of generator发电机是电厂最重要和贵重的电气设备，发电机的安全运行直接影响电厂电气系统的安全。
为了保护发电机和限制事故的扩大，根据发电机的故障和不正常工作状态，本厂配置了发电机保护柜（一台发电机一台），并配备必要的保护功能。
The generator is the most important and expensive electrical equipment of the power plant. The safety running of generator directly affects the electrical system of the plant. In order to protect the generator and limit the emergency outbreak, according to the failure and abnormal working status of generator, this plant has had two generator protection boxes (each generator has one), with necessary protection function.1.1.12 发电机励磁柜励磁系统是发电机的重要组成部分。