生活垃圾焚烧发电项目电气设备介绍

生活垃圾焚烧发电项目 电气设备介绍

Introduction of electrical equipments

of MSW power plant

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1.1 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.

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功率因数 额定功率 7000 型号0.8 QFW-7-2 6600V

power factorrated powerpower factor modelkW COSφ）（ 额定定子电流3000 额定转速 额定定子电压 rated stator 6600V 765A

rated rotation speedrated stator voltager/min current

相数 极数 定子接法3 Y 2

stator connection typenumber of polarnumber of phase

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，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可以在 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

out time sends the and the security section, at same plant system will isolate the supply busbar

and pressure, shut valve up start, the signal to command diesel generator to adjust speed, boost

to15 in10 equipment keep security power and of series action, supply to section, basic running

second, guaranteeing the safety shutdown of boiler and turbine and other auxiliary equipments.

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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。electromagnetic of the rules electric of rotating equipment which follows Motor is a kind

induction. It transfers electric energy to mechanical energy, driving fans, pumps, compressors and

fan, fan, secondary the to technical requirement, primary other machines in the plant. According

their control, pump water adopt frequency draft induced fan, water feed pump and condensing

motors adopt converter motors in correspondence.

Low voltage motor 低压电动机 高压电动机High voltage motor 4

1.1.4 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.

Oil-immersed main transformer

油浸式主变压器1.1.5 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 transformer

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Model 型号Primary 一次电压voltage Primary 一次电流current The body of switch cabinet 开关柜本体KYN61-40.5 1 Type 型式33 2 Rated voltage 额定电压38 3 Maximum running voltage 最高运行电压630 4 Rated current 额定电流3 5 Number of phases 相数50HZ 6 Rated frequency 额定频率80 7 Rated motion stabilized current 额定动稳定电流31.5 8 Hot stabilized current (virtual value) 热稳定电流（有效值）4S 9 Continuing time of hot stabilized current 热稳定电流持续时间 额定容频Rated50Hz 2000KVA

SCB10-2000/6.6Frequenccapacit 相二次电Number ofSecondary3 2.5% 0.4KV

6.6Kphasvoltag

冷却方二次电ACoolingSecondary2886.8A

175A

curentyp

Transformer protection device

变压器保护设备1.1.6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.