生活垃圾焚燒發電項目電氣設備介紹
Introduction of electrical equipments of MSW power plant

1.1 主要電氣設備 Main electrical equipments
為了滿足用電設備對電力的要求和保證電力系統運行的安全穩定和經濟性，發電廠電氣部分的主要工作是啟、停機組，調整負荷，切換設備和線路，不斷監視主要設備的運行，發生異常和故障時及時處理等。以上所有的工作都是靠操作主要電氣設備來完成的。根據恒豐友電氣的經驗總結發電廠主要電氣設備如下：
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 汽輪發電機
發電機是根據電磁感應原理而工作的一種旋轉電氣設備，她將機械能轉變成電能。她與汽輪機直接耦合傳動。發電機旋轉方向從汽輪機端看為順時針方向。
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.

型號
power factor modelQFW-7-2 6600V額定功率
rated power7000 kW功率因數
power factor（COSφ）0.8

額定定子電壓
rated stator voltage6600V額定定子電流rated stator current765A額定轉速
rated rotation speed3000 r/min

極數
number of polar2相數
number of phase3定子接法
stator connection typeY

1.1.2 柴油發電機
柴油發電機平時處于備用狀態，當發生全廠停電事故時，自動控制系統會自動隔離廠用電母線和事故保安段母線，同時發出信號命令柴油發電機啟動，柴油發電機自帶控制系統，可以在10-15s內自動完成柴油啟動、調速、升壓、合閘一系列的過程，供電給事故保安段母線，維持基本的設備運轉，保障鍋爐和汽機及其他輔助設備的安全停機。
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 電動機
電動機是根據電磁感應原理工作的一種旋轉電氣設備，她將電能轉化為機械能，拖動電廠風機、泵類、壓縮機等機械。根據電廠工藝的要求，其中一次風機、二次風機、引風機、給水泵和凝結水泵等設備采用變頻調速控制，其拖動電機也采用相應的變頻電機。
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, their motors adopt converter motors in correspondence.

高壓電動機 High voltage motor 低壓電動機Low voltage motor

1.1.4 主變壓器 Main transformer
變壓器是一種靜止電器，她利用電磁感應原理，把一種電壓、電流的交流電能變成為同頻率的另一種電壓、電流的交流電能。
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.

油浸式主變壓器Oil-immersed main transformer
1.1.5 廠用變壓器 Plant transformer
廠用變壓器是專門給電廠自己供電用的。
Transformer factory is specialized for power plant their power supply.

恒豐友變壓器生產三相環氧樹脂澆注干式變壓器主要參數
three-phase epoxy resin placing dry transformer

型號ModelSCB10-2000/6.6額定容量Rated capacity2000KVA頻率Frequency50Hz

一次電壓Primary voltage6.6KV±2×2.5%二次電壓Secondary voltage0.4KV相數Number of phase3

一次電流Primary current175A二次電流Secondary curent2886.8A冷卻方式Cooling typeAF

1.1.6變壓器保護設備Transformer protection device
變壓器保護裝置是集保護、監視、控制、通信等多種功能于一體的電力自動化高新技術產品，是構成智能化開關柜的理想電器單元。
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高壓柜 33 kV high voltage cabinet

恒豐友電氣生產的發電廠中壓開關柜主要參數

開關柜本體The body of switch cabinet

1型式Type KYN61-40.5

2額定電壓Rated voltage33

3最高運行電壓Maximum running voltage38

4額定電流Rated current630

5相數Number of phases3

6額定頻率Rated frequency50HZ

7額定動穩定電流Rated motion stabilized current80

8熱穩定電流（有效值）Hot stabilized current (virtual value)31.5

9熱穩定電流持續時間Continuing time of hot stabilized current 4S

10一分鐘工頻耐受電壓（有效值）
Voltage tolerance under 1 minute working frequency (virtual value)主絕緣對地
Main insulate toward ground95

斷口間絕緣
Insulate between cuts110

11雷電沖擊水平（全波、峰值）
Class of thunder strike (full wave, peak)主絕緣對地
Main insulate toward ground185

斷口間絕緣
Insulate between cuts215

12冷卻方式Way of cool down自冷
Self cool down

1.1.8 6.6 kV高壓柜 6.6 kV high voltage cabinet
按照本廠使用需要，6.6 kV配電系統可以裝備KYN28A-12型中置移開式鎧裝金屬封閉開關柜和XGN2-12固定式金屬封閉式開關柜。
According to the demand of this plant, the 6.6 kV power distribution system hasKYN28A-12 type center withdrawing metal shielded closed switch cabinets and XGN2-12 fixed metal shielded closed switch cabinets.

KYN28A-12 XGN2-12
1.1.9 低壓配電柜 Low voltage power distribution cabinet
本廠主廠房低壓配電室需配備MNS型低壓抽屜式開關柜，對廠用電源、廠用備用電源、事故保安電源進行分配、切換、控制、監視和保護，是全廠廠用電配電中心。
The low voltage power distribution house of the main plant building hasMNStype 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 現場動力箱 Local power box
按照本廠使用需要和功能的不同，在主廠房其他地方和其他車間分布著檢修箱，現場動力箱，現場控制箱，對現場設備進行配電和控制。
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 發電機保護柜 Protection box of generator
發電機是電廠最重要和貴重的電氣設備，發電機的安全運行直接影響電廠電氣系統的安全。為了保護發電機和限制事故的擴大，根據發電機的故障和不正常工作狀態，本廠配置了發電機保護柜（一臺發電機一臺），并配備必要的保護功能。
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 發電機勵磁柜
勵磁系統是發電機的重要組成部分。發電機勵磁調節器的基本任務是：（1）維持發電機的機端電壓恒定，當發電機負荷發生變化時，通過調節磁場的強弱來恒定機端電壓；（2）通過合理的調差設置來保證并列運行的機組間無功功率的合理分配；（3）通過快速的勵磁響應以提高電力系統的暫態穩定和靜態穩定。
Excitation system is an important part of the generator. The basic task for generator excitation regulator is: (1) keep the generator voltage stable; (2) ensure the adequate distribution of reactive power between synchronized running units through reasonable differential control; (3) enhance the temporary status stability and static status stability through quick excitation respond.

1.1.13 廠用電快速切換柜 Quick switch box for plant power supply
廠用電供電的連續可靠是電廠各種用電設備安全運行的基本條件，為了保證廠用電供電的可靠性，本廠除了設置廠用電工作電源外，另設有廠用電備用電源。因此，對供電可靠性要求較高的場合多配有兩路供電電源，兩路電源間的成功切換是連續不間斷供電的關鍵。
Electrical equipment safe running depends on the continuous reliable power supply. In order to guarantee reliable power supply, this plant has deployed plant backup power besides working power. Therefore, requiring higher reliability of power supply is equipped with two way more power supply, the success of the switch between two power supplies is the key to the continuous uninterrupted power supply.

1.1.14 同期柜 Synchronization box
同期系統的主要作用就是為了保護系統和待并機組的安全運行。
Synchronization system mainly works as protection of system and the safety running of the synchronized units.

本廠采用準同期并列，準同期并列要求在并列前調節待并發電機或待并系統，使其同時滿足如下三個并列條件：
This plant adopts pre-synchronization which requires adjusting the generator and system before synchronized, and let it fulfill the three conditions following simultaneously:
① 頻率差不超過0.2％～0.5％；
Frequency differential not more than 0.2%~0.5%;
② 壓差不超過5％～10％；
Voltage differential not more than 5%~10%;
③ 初相角差不超過10°。
Initial phase angle differential not more than 10°.
此時并列后沖擊電流小，能馬上拉入同步，對系統的擾動小。
The impact current is smaller at this time, which is able to recruit at once with less interference to the system.

1.1.15 變頻器柜 Inverter box
為了提高控制精度，改善電機的啟動性能，并節約能源，降低廠用電，本廠一些主要輔機設備電機等主要電機均采用變頻控制。
In order to improve the control accuracy, also the start performance of motor, and saving energy and plant uses power, the main motors of T auxiliary equipment adopt frequency control.


1.1.16 軟啟動器Soft starter
軟啟動器是一種集軟啟動、軟停車、輕載節能和多功能保護于一體的電機控制裝備。實現在整個啟動過程中無沖擊而平滑的啟動電機，而且可根據電動機負載的特性來調節啟動過程中的各種參數，如限流值、啟動時間等。
Soft starter is a collection of soft start, soft stop, light load energy saving and multi-functional protection of motor control equipment. No impact on the implementation in the entire launch process and a smooth start the motor, and can be adjusted according to the characteristics of the motor load to start the process of various parameters, such as current limiting values, start time, etc.

1.1.17斷路器Circuit breaker
斷路器是指能夠關合、承載和開斷正常回路條件下的電流并能關合、在規定的時間內承載和開斷異常回路條件下的電流的開關裝置。斷路器按其使用范圍分為高、中、低壓斷路器。
Circuit breaker is to point to to close, loading and open circuit loop current under the condition of normal and can close, within the prescribed time and open circuit under the condition of abnormal loop current switch devices. Circuit breaker according to its use range was divided into high, medium and low voltage circuit breaker.


1.1.18 電線電纜 Wires and cables
全廠電纜均采用阻燃電纜。
The cables for the whole plant are flame retardant cables.

本廠電纜分為電力電纜、控制電纜和計算機電纜。
（1）10KV電力電纜 10KV power cable
（2）1KV電力電纜 1KV power cable
（3）控制電纜 control cable
（4）計算機電纜 computer cable

1.1.19 電纜橋架 Cable tray
電纜橋架是承載導線的一個載體，使導線到達建筑物內很多位置，且不會影響建筑物美觀。
Cable tray is carrying a carrier of the wire, and let wire to the building a lot of position, and will not effect the beauty of the building

總結，以上就是恒豐友電氣根據多年配套發電廠配電設備總結的主要設備。