廈門彬碩-小胡 電話18900224342 0592-5588308 QQ：469126278
德國西門子SIEMENS:3RK 3RA 3RB 3RF 3RG 3RH 3RN 3RP 3RS 3RT 3RV 3RX 3SK 3TC 3TD 3TG 3TH 3TK 3TS 3TX 3UF 3UG 3LD 8WD 6SL39 6SE70 6SY 6DD 6RY 6SB等備件產(chǎn)品
星三角降壓起動(dòng)是指通過改變電機(jī)的接線方式而改變起動(dòng)電壓，從而降低起動(dòng)電流的一種方法，只能適用于正常接線方式為三角形接法的電機(jī)。在起動(dòng)時(shí)，使用繼電器方法使電機(jī)接線方式為星形，此時(shí)電機(jī)的每相電壓降低為原來的根號(hào)三分之一，電機(jī)轉(zhuǎn)速達(dá)到額定轉(zhuǎn)速的80%左右，控制繼電器改變電機(jī)接線方式為三角形，電機(jī)開始正常運(yùn)轉(zhuǎn)。優(yōu)點(diǎn)是可以節(jié)省自藕變壓器，降低成本，同時(shí)接線方法簡單，可靠性較大。缺點(diǎn)是無法改變起動(dòng)電壓的比率，同時(shí)無法使用在星形接法的電機(jī)。
3RK1301-0AB10-0AB4
3RK1301-0AB13-0AA2
3RK1301-0AB13-0AA4
3RK1301-0AB13-1AA2
3RK1301-0AB13-1AA4
3RK1301-0AB20-0AA3
3RK1301-0AB20-0AA4
3RK1301-0BB00-0AA2
3RK1301-0CB13-0AA2
3RK1301-0CB13-0AA4
3RK1301-0CB13-1AA2
3RK1301-0CB13-1AA4
3RK1301-0CB20-0AA3
3RK1301-0CB20-0AA4
3RK1301-0DB00-0AA2
3RK1301-0DB00-1AA2
3RK1301-0EB00-0AA2
3RK1301-0EB00-1AA2
3RK1301-0FB00-0AA2
3RK1301-0FB00-1AA2
3RK1301-0GB00-0AA2
3RK1301-0GB00-1AA2
3RK1301-0HB00-0AA2
3RK1301-0HB00-1AA2
3RK1301-0JB00-0AA2
3RK1301-0JB00-1AA2
3RK1301-0KB00-0AA2
3RK1301-0KB00-1AA2
3RK1301-1AB00-0AA2
3RK1301-1AB00-1AA2
3RK1301-1BB00-0AA2
3RK1301-1BB00-1AA2
3RK1301-1CB00-0AA2
3RK1301-1CB00-1AA2
3RK1301-1DB00-0AA2
3RK1301-1DB00-1AA2
3RK1301-1EB00-0AA2
3RK1301-1EB00-1AA2
3RK1301-1FB00-0AA2
3RK1301-1HB00-0AA2
3RK1301-1HB00-1AA2
3RK1301-1JB00-0AA |
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