產(chǎn)品詳情
SCONINC變換器SCONI-NFC-A1RX/Y ,出售大秦 DPPC-33DAEYEON轉(zhuǎn)換器;DY-HSC-BCAA DY-HSC-BCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-BDAA DY-HSC-BDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-BOAA DY-HSC-BONA
DAEYEON轉(zhuǎn)換器;DY-HSC-C1AA DY-HSC-C1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C2AA DY-HSC-C2NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C3AA DY-HSC-C3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-AA DY-HSC-NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C5AA DY-HSC-C5NA準(zhǔn)確限值系數(shù)就是表示這種特性。保護(hù)用互感器準(zhǔn)確等級(jí)5P、10P,表示在額定準(zhǔn)確限值一次電流時(shí)的允許電流誤差為1%、3%,其復(fù)合誤差分別為5%、10%線路發(fā)生故障時(shí)的沖擊電生熱和電磁力,保護(hù)用電流互感器必須承受。二次繞組短路情況下,電流互感器在一秒內(nèi)能承受而無(wú)損傷的一次電流有效值,稱額定短時(shí)熱電流。二次繞組短路情況下,電流互感器能承受而無(wú)損傷的一次電流峰值,稱額定動(dòng)電流。保護(hù)用電流互感器的精度等級(jí)5P/10P,10P標(biāo)示復(fù)合誤差不超過10%。按絕緣介質(zhì)分類干式電流互感器[4]:由普通絕緣材料經(jīng)浸漆處理作為絕緣。澆注式電流互感器:用環(huán)氧樹脂或其他樹脂混合材料澆注成型的電流互感器。油浸式電流互感器:由絕緣紙和絕緣油作為絕緣。
DAEYEON轉(zhuǎn)換器;DY-HSC-C6AA DY-HSC-C6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-CAAA DY-HSC-CANA
DAEYEON轉(zhuǎn)換器;DY-HSC-CBAA DY-HSC-CBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-CCAA DY-HSC-CCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-CDAA DY-HSC-CDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-COAA DY-HSC-CONA
DAEYEON轉(zhuǎn)換器;DY-HSC-D1AA DY-HSC-D1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D2AA DY-HSC-D2NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D3AA DY-HSC-D3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D4AA DY-HSC-D4NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D5AA DY-HSC-D5NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D6AA DY-HSC-D6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-DAAA DY-HSC-DANA
DAEYEON轉(zhuǎn)換器;DY-HSC-DBAA DY-HSC-DBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DCAA DY-HSC-DCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DDAA DY-HSC-DDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DOAA DY-HSC-DONA
DAEYEON轉(zhuǎn)換器;DY-HSC-O1AA DY-HSC-O1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O2AA DY-HSC-O2NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O3AA DY-HSC-O3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O4AA DY-HSC-O4NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O5AA DY-HSC-O5NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O6AA DY-HSC-O6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-OAAA DY-HSC-OANA
DAEYEON轉(zhuǎn)換器;DY-HSC-OBAA DY-HSC-OBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-OCAA DY-HSC-OCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-ODAA DY-HSC-ODNA
DAEYEON轉(zhuǎn)換器;DY-HSC-OOAA DY-HSC-OONA
同時(shí)由于起動(dòng)轉(zhuǎn)矩較大,將對(duì)負(fù)載產(chǎn)生沖擊,傳動(dòng)部件的磨損和額外。所以當(dāng)電機(jī)的容量較大(一般為超過電源容量的20%—30%時(shí))均采用降壓起動(dòng)。上采用的降壓起動(dòng)的有Y/△換接起動(dòng)和自耦變壓器降壓起動(dòng)。雖然這兩種起動(dòng)均可起動(dòng)電流,但是在降壓起動(dòng)完成后的分檔投切和加全壓的瞬間,仍將產(chǎn)生數(shù)倍額定電流的尖峰電流(二次沖擊電流),此電流將對(duì)配電造成沖擊,同時(shí)產(chǎn)生的性的動(dòng)態(tài)轉(zhuǎn)矩會(huì)引起水泵電機(jī)的機(jī)械震動(dòng),對(duì)電機(jī)的轉(zhuǎn)子、中間齒輪等非常有害,并使供電線路電耗增大。軟啟動(dòng)器也是降壓起動(dòng)器的一種。它是利用性能先進(jìn)的微處理器,合理有序地控制大功率晶閘管組件導(dǎo)通,使之產(chǎn)生逐步的的交流電壓加在交流電動(dòng)機(jī)上。