供應(yīng)西門子LDZ10501603時間測量數(shù)據(jù)
型號 | 參數(shù)Interlock |
LDZ085868C | Fiber Optic Cable |
LDZ11500211.10 | Fiber Optic Cable |
LDZ10501526 | WAGO Power Suply |
LDZ10500424.100l | 參數(shù)100A Power Cel |
LDZ10500494.200 | 參數(shù)200A Power Cell |
LDZ10506538 | Fuse |
LDZ10506537 | Fuse |
LDZ10506540 | Fuse |
LDZ14501000.070 | 參數(shù)70A Power Cell |
LDZ10000432.00C | CCB |
LDZ10503106 | IGBT參數(shù)(100A/1400V) |
LDZ10503001 | 參數(shù)Rectifier Diode |
LDZ10501431 | Fuse(63A/690V) |
LDZ14501000.100l | 參數(shù)100A Power Cel |
LDZ10000432.01C | CCB |
LDZ10503107 | IGBT參數(shù)(150A/1400V) |
LDZ10503001 | Rectifier Diode |
LDZ10501432 | Fuse參數(shù)(80A/690V) |
LDZ14501001.140 | 參數(shù) 140A Power Cell |
LDZ10000432.02C B | CC |
LDZ10503108 | IGBT參數(shù)(200A/1400V) |
LDZ10503001 | Rectifier Diode |
LDZ10501433 | Fuse參數(shù)(125A/690V) |
變頻器的調(diào)速原理主要受制于異步電動機的轉(zhuǎn)速n、異步電動機的f、電動機轉(zhuǎn)差率s、電動機極對數(shù)p這四個因素。轉(zhuǎn)速n與f成正比,只要改變f即可改變電動機的轉(zhuǎn)速,當(dāng)f在0-50Hz的范圍內(nèi)變化時,電動機轉(zhuǎn)速調(diào)節(jié)范圍非常寬。變頻調(diào)速是通過改變電動機電源實現(xiàn)速度調(diào)節(jié)的。主要采用交—直—交,先把工頻交流電源通過整流器轉(zhuǎn)換成直流電源,然后再把直流電源轉(zhuǎn)換成、電壓均可控制的交流電源以供給電動機。變頻器的電路一般由整流、中間直流環(huán)節(jié)、逆變和控制4個部分組成。整流部分為三相橋式不可控整流器,逆變部分為IGBT三相橋式逆變器,且輸出為PWM波形,中間直流環(huán)節(jié)為濾波、直流儲能和緩沖無功功率。
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