生活垃圾焚燒發(fā)電項目電氣設(shè)備介紹

1、生活垃圾焚燒發(fā)電項目電氣設(shè)備介紹Introduction of electrical equipments of MSW power plant1.1 主要電氣設(shè)備 Main electrical equipments為了滿足用電設(shè)備對電力的要求和保證電力系統(tǒng)運行的安全穩(wěn)定和經(jīng)濟性，發(fā)電廠電氣部分的主要工作是啟、停機組，調(diào)整負(fù)荷，切換設(shè)備和線路，不斷監(jiān)視主要設(shè)備的運行，發(fā)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(shè)備來完成的。本廠主要電氣設(shè)備如下：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 汽輪發(fā)電機 發(fā)電機是根據(jù)電磁感應(yīng)原理而工作的一種旋轉(zhuǎn)電氣設(shè)備，它將機械能轉(zhuǎn)變成電能。它與汽輪機直接耦合傳動。發(fā)電機旋轉(zhuǎn)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

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.型號power factor modelQFW-7-2 6600V額定功率rated power7000 kW功率因數(shù)power factor（COS）0.8額定定子電壓rated stator voltage6600V額定定子電

5、流rated stator current765A額定轉(zhuǎn)速rated rotation speed3000 r/min極數(shù)number of polar2相數(shù)number of phase3定子接法stator connection typeY1.1.2 柴油發(fā)電機 柴油發(fā)電機平時處于備用狀態(tài)，當(dāng)發(fā)生全廠停電事故時，自動控制系統(tǒng)會自動隔離廠用電母線和事故保安段母線，同時發(fā)出信號命令柴油發(fā)電機啟動，柴油發(fā)電機自帶控制系統(tǒng)，可以在10-15s內(nèi)自動完成柴油啟動、調(diào)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(shè)備運轉(zhuǎn)，保障鍋爐和汽機及其他輔助設(shè)備的安全停機。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 電動機 電動機是根據(jù)電磁感應(yīng)原理工作的一種旋轉(zhuǎn)電氣設(shè)備，它將電能轉(zhuǎn)化為機械能，拖動電廠風(fēng)機、泵類、壓縮機等機械。根據(jù)電廠工藝的要求，其中一次風(fēng)機、二次風(fēng)機、引風(fēng)機、給水泵和凝結(jié)水泵等設(shè)備采用變頻調(diào)速控制，其拖動電機也采用相應(yīng)的變頻電機。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. 高壓電動機 High voltage motor 低壓電動機Low voltage motor1.1.4 主變壓器 Main transformer變壓器是一種靜止電器，它利用電磁感應(yīng)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 o

10、f electromagnetic induction, makes one kind of AC power into another kind with same frequency but different voltage and current.油浸式主變壓器Oil-immersed main transformer1.1.5 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.三相環(huán)氧樹脂澆注干式變壓器three-

11、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 voltage6.6KV22.5%二次電壓Secondary voltage0.4KV相數(shù)Number of phase3一次電流Primary current175A二次電流Secondary curent2886.8A冷卻方式 Cooling typeAF1.1.6變壓器保護設(shè)備Transformer protection device變壓器保護裝置是集保護、監(jiān)視、

12、控制、通信等多種功能于一體的電力自動化高新技術(shù)產(chǎn)品，是構(gòu)成智能化開關(guān)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 vo

13、ltage cabinet開關(guān)柜本體The body of switch cabinet1型式Type KYN61-40.52額定電壓Rated voltage333最高運行電壓Maximum running voltage384額定電流Rated current6305相數(shù)Number of phases36額定頻率Rated frequency50HZ7額定動穩(wěn)定電流Rated motion stabilized current808熱穩(wěn)定電流（有效值）Hot stabilized current (virtual value)31.59熱穩(wěn)定電流持續(xù)時間Continuing time o

14、f hot stabilized current 4S10一分鐘工頻耐受電壓（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 cuts11011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 cuts21512冷卻方式Wa

15、y of cool down自冷Self cool down1.1.8 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(tǒng)可以裝備KYN28A-12型中置移開式鎧裝金屬封閉開關(guān)柜和XGN2-12固定式金屬封閉式開關(guān)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

16、-12 fixed metal shielded closed switch cabinets. KYN28A-12 XGN2-121.1.9 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(guān)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(jiān)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 has MNS type low voltage withdrawing cabine

17、t, 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(xiàn)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(xiàn)場動力箱，現(xiàn)場控制箱，對現(xiàn)場設(shè)備進行配電和控制。According to the difference o

18、f 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(fā)電機保護柜 Protection box of generator發(fā)電機是電廠最重要和貴重的電氣設(shè)備，發(fā)電機的安全運行直接影響電廠電氣系統(tǒng)的安全。為了保護發(fā)電機和限制事故的擴大，根據(jù)發(fā)電機的故障和不正常工作狀態(tài)，本廠配置

19、了發(fā)電機保護柜（一臺發(fā)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

20、 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(fā)電機勵磁柜 勵磁系統(tǒng)是發(fā)電機的重要組成部分。發(fā)電機勵磁調(diào)節(jié)器的基本任務(wù)是：（1）維持發(fā)電機的機端電壓恒定，當(dāng)發(fā)電機負(fù)荷發(fā)生變化時，通過調(diào)節(jié)磁場的強弱來恒定機端電壓；（2）通過合理的調(diào)差設(shè)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(yīng)以提高電力系統(tǒng)的暫態(tài)穩(wěn)定和靜態(tài)

21、穩(wěn)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

22、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(xù)可靠是電廠各種用電設(shè)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(shè)置廠用電工作電源外，另設(shè)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(xù)不間斷供電的關(guān)鍵。Electrical equipment safe running depen

23、ds 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 s

24、upplies is the key to the continuous uninterrupted power supply.1.1.14 同期柜 Synchronization box同期系統(tǒng)的主要作用就是為了保護系統(tǒng)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(zhǔn)同期并列，準(zhǔn)同期并列要求在并列前調(diào)節(jié)待并發(fā)電機或待并系統(tǒng)，使其同時滿足如下三個并列條件：This plant adopts p

25、re-synchronization which requires adjusting the generator and system before synchronized, and let it fulfill the three conditions following simultaneously: 頻率差不超過0.20.5；Frequency differential not more than 0.2%0.5%; 壓差不超過510；Voltage differential not more than 5%10%; 初相角差不超過10。Initial phase angle dif

26、ferential not more than 10.此時并列后沖擊電流小，能馬上拉入同步，對系統(tǒng)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(jié)約能源，降低廠用電，本廠一些主要輔機設(shè)備電機等主要電機均采用變頻控制。In order to improve the control accuracy, also the s

27、tart 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(jié)能和多功能保護于一體的電機控制裝備。實現(xiàn)在整個啟動過程中無沖擊而平滑的啟動電機，而且可根據(jù)電動機負(fù)載的特性來調(diào)節(jié)啟動過程中的各種參數(shù)，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 o