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繞線電機功率因數低為什么用高壓軟啟動柜效果好

來源:tjiaqi.cn 發布時間:2021/6/19 12:00:15

高壓軟啟動柜,高壓固態軟啟動柜價格,高壓無功補償柜廠家分享它串連(lian)于(yu)電機(ji)電機(ji)轉子回路(lu)中(zhong),用(yong)于(yu)提升電機(ji)的(de)(de)功率(lv)因數,減少電機(ji)的(de)(de)定子電流和改進電機(ji)的(de)(de)運(yun)行情況。


交(jiao)付使(shi)用SPH系列產品(pin)進相賠(pei)償設(she)備(bei)后(hou),能(neng)夠 增加(jia)電機的(de)(de)使(shi)用期;提(ti)升(sheng)客戶機器(qi)設(she)備(bei)的(de)(de)使(shi)用率,節約供用電機器(qi)設(she)備(bei)項(xiang)目(mu)投資,發(fa)掘目(mu)前機器(qi)設(she)備(bei)的(de)(de)發(fa)展潛(qian)力;降(jiang)低水電費,控(kong)制(zhi)成本(ben),它將給(gei)客戶產生立即的(de)(de)經濟收(shou)益(yi)和社會經濟效益(yi)。 


原理: 選用變頻(pin)器(qi)原理,將(jiang)單相(xiang)電380交流(liu)(liu)電流(liu)(liu),根(gen)據12只晶闡管和6只均衡串聯電抗器(qi),轉換成與電機(ji)電機(ji)轉子頻(pin)率同樣(f1.s≈1Hz)的三相(xiang)交流(liu)(liu)電。


該電(dian)(dian)(dian)流進(jin)入電(dian)(dian)(dian)機(ji)轉子(zi)(zi)回路(lu),進(jin)而在(zai)電(dian)(dian)(dian)機(ji)轉子(zi)(zi)回路(lu)中造成一個超前的于(yu)電(dian)(dian)(dian)機(ji)轉子(zi)(zi)電(dian)(dian)(dian)勢(shi)差近900的額外(wai)電(dian)(dian)(dian)勢(shi)差Ek,從(cong)而改(gai)進(jin)電(dian)(dian)(dian)機(ji)的功(gong)率因數(shu)。Ek的尺寸(cun)在(zai)于(yu)軟(ruan)啟動器(qi)開(kai)關電(dian)(dian)(dian)源U2的尺寸(cun)和晶(jing)闡管開(kai)啟角的大小。


從基(ji)本原(yuan)理框架圖(tu)看(kan),取樣(yang)數據(ju)信號回路依據(ju)電(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)機轉(zhuan)子電(dian)(dian)(dian)(dian)流(liu)數據(ju)信號和額外電(dian)(dian)(dian)(dian)勢差數據(ju)信號開展解決,把結(jie)果贈(zeng)給邏輯(ji)性辨別(bie)回路;邏輯(ji)性辨別(bie)回路依據(ju)維護命令操縱觸(chu)發器原(yuan)理,開啟(qi)晶闡管的(de)開啟(qi)角,進而在電(dian)(dian)(dian)(dian)機轉(zhuan)子回路獲得一(yi)個(ge)額外勵磁(ci)電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)流(liu)I'mo,以便(bian)維持I1+I2=Im不會改變(bian)(bian),I2提升(sheng),I1就需要降(jiang)低;因此 可(ke)減(jian)少定子電(dian)(dian)(dian)(dian)流(liu),降(jiang)低功率因數角φ1,提升(sheng)功率因數cosφ1,因為維持盛磁(ci)電(dian)(dian)(dian)(dian)流(liu)Im不會改變(bian)(bian)、轉(zhuan)差率不會改變(bian)(bian),從而確保電(dian)(dian)(dian)(dian)機出軸扭矩不會改變(bian)(bian)、電(dian)(dian)(dian)(dian)機轉(zhuan)速(su)比不會改變(bian)(bian)。 


伴(ban)隨(sui)著(zhu)賠償工作電壓(ya)的逐漸上(shang)升(sheng)(sheng),定(ding)子(zi)側(ce)的無功(gong)負(fu)荷(he)慢(man)慢(man)降低,功(gong)率(lv)因(yin)數逐漸升(sheng)(sheng)高,定(ding)子(zi)電流慢(man)慢(man)減(jian)少。當(dang)賠償工作電壓(ya)上(shang)升(sheng)(sheng)到一定(ding)值后,定(ding)子(zi)側(ce)的無功(gong)負(fu)荷(he)減(jian)少到接近于零,功(gong)率(lv)因(yin)數升(sheng)(sheng)高到近似于1。 

特性特性 

1、可使電(dian)機的功率因數(shu)提升(sheng)到0.95之上,無功負荷減少60%之上。 


2、減少定子電流10%—20%,減少線(xian)損(sun)(sun)、銅(tong)損(sun)(sun)20%—30%。 


3、電機升溫明顯減少,負載(zai)工作(zuo)能力和高效率進一步提高。電機使用期增加(jia)。 


4、具備斷相、過電流(liu)等常見(jian)故障(zhang)全(quan)自動(dong)維(wei)護作用。 


5、實(shi)際(ji)操作簡(jian)易,安裝調節和維(wei)護保養便捷。