無功補(bǔ)償外文翻譯(適用于外文翻譯中英文對(duì)照)-資料下載頁
2024-12-06 03:57本頁面
【導(dǎo)讀】摘要改善工業(yè)企業(yè)用電的功率因數(shù)是提高用電效率、節(jié)約電能的重要手段。業(yè)供用電系統(tǒng)存在的問題，提出了改進(jìn)意見和措施。1引言在工業(yè)企業(yè)中，絕大多。數(shù)的用電設(shè)備屬于感性負(fù)荷，這些設(shè)備在運(yùn)行中要吸收大量的無功功率。利用、增加線路損耗以及降低供電設(shè)備的供電能力等情況。提高功率因數(shù)對(duì)降損節(jié)能有著極為重要的意義。2補(bǔ)償方式的選擇無功補(bǔ)償分為集。中補(bǔ)償、分散補(bǔ)償和就地補(bǔ)償三種。集中補(bǔ)償，即在高、低壓配電所內(nèi)設(shè)置若干組。率因數(shù)達(dá)到規(guī)定值以上。功功率有所減少，達(dá)到供電部門所要求的功率因數(shù)。部線路上流動(dòng)并產(chǎn)生損耗。分散補(bǔ)償是將電容器組分別安裝在各個(gè)車間的配電盤處，少而獲得補(bǔ)償效果。無功補(bǔ)償應(yīng)遵循“全面規(guī)劃，合理w布局，分級(jí)補(bǔ)償，就地平。目前，該廠變壓器總?cè)萘繛?7660kVA，共有20. 因而提出高壓側(cè)集中補(bǔ)償和低壓側(cè)分散補(bǔ)償相結(jié)合的補(bǔ)償方式。都造成設(shè)備欠載和嚴(yán)重欠載形成“大馬拉小車”運(yùn)行。目前，該廠某些設(shè)備的空載運(yùn)行嚴(yán)重。
【正文】 1 to improve the power factor in lowering powerconsumption， improving economic efficiency plays an important role. Table 1 Power factor and power loss percentage of the corresponding data If a constant active power condition， the original power factor cosφ1 of ， pensated power factor cosφ2 of ， its line loss rate reduction ΔΡ to pensation device， Group to track the power capacitor pensation， power factor can be differentfrom the stability provided in the context of the power factor to achieve adequatepensation ， transformer capacity increase Lines， transformer capacity increased ΔS for the w cos 1 S S 1 cos 2 Additional pensation device， may improve the power factor， power factor onthe business of direct economic benefit is obvious. Because the state electricity system， starting from the rational use of energy， according to the power pany to adjust theprice due to high and low values. The pensation device for enterprise and the entirepower system economic operation all have significant economic effects .To improve the voltage quality To improve the voltage quality is the dynamic reactive power pensationequipment installed around the role of place in the line voltage pensation hasincreased slightly . U1 U 2 tg2 x U 100 Q1 R tg1 x Where tgφ1 pensation device is not installed before the φ1 angle tangenttgφ2 pensation equipment installed after the φ2 angle tangent R， x lineresistance， enterprises for the power system problems and solution Fig 1 for a diagram of power supply systems for heavy machine tool plant. Atpresent， the total capacity of the plant transformer 17660kVA， a total of 20 transformers1 20， transformers， each transformer capacity range of 50 1250 kVA， changing the ratio of 10kV / 014kV. Transformer low voltage side of the load is mainlymotor， shown in the M1， M2 Mn shown. In general the rate of transformer load isbasically maintained at 28 29， and the maximum load of and low voltage pensation to replace a bination of high concentrationof pensation From the figure we can see the plant suppl.
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