牡丹江市SANIL開(kāi)關(guān)SD-18MK-16,SC-18MKB-16中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。
CS15-3R3,CS15-15,CS15-5,CS15-12,CS15-24,CS30-3R3,CS30-5,CS30-12,CS30-15,CS30-24,CD30-55,CD30-52,CD30-5F,CD30-54,CD30-1212,CD30-1515,CS50-5,CS50-3R3,CS50-12,CS50-15,CS50-24,CS75-3R3,CS75-5,CS75-12,CS75-15,CS75-24,CS75-48,CS100-3R3,CS100-5,CS100-12,CS100-15,CS100-24,CS100-48,CS150-3R3,CS150-5,CS150-12,CS150-15,CS150-24,CS150-48,CS200-3R3,CS200-5,CS200-12,CS200-15,CS200-24,CS200-48,FS10-3R3,FS10-5,FS10-12,FS10-15,FS10-24,FSD10-1212,FSD10-1515,FST10-522M,FST10-5FFM,FS15-3R3,FS15-5,FS15-12,FS15-15,FS15-24,FSD15-1212,FSD15-1515,FS30-3R3,FS30-5,FS30-12,FS30-15,FS30-24,FSD30-1212,FSD30-1515,NFS10-5,NFS10-12,NFS10-15,NFS10-24,NFS15-5,,NFS15-12,NFS15-15,NFS15-24,NFD15-52,NFD15-5F,NFD15-54,NFT15-522,NFT15-5FF,NFS30-5,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。

 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)穩(wěn)定電流。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(guò)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(shù)脂或其他樹(shù)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。


NFS30-12,NFS30-15,NFS30-24,NFD30-52,NFD30-5F,NFD30-54,NFT30-522A,NFT30-525A,NFT30-5FFA,NFS50-5,NFS50-12,NFS50-15,NFS50-24,NFD50-52,NFD50-5F,NFD50-54,NFS100-5,NFS100-12,NFS100-15,NFS100-24,SFS5-3R3,SFS5-5,SFS5-12,SFS5-15,SFS5-24,SFD5-1212,SFD5-1515,SFS10-3R3,SFS10-5,SFS10-12,SFS10-15,SFS10-24,FST30-522,SFS5-3R3C,SFS5-5C,SFS5-12C,SFS5-15C,SFS5-24C,SFS10-3R3C,SFS10-5C,SFS10-12C,SFS10-15C,SFS10-24C,,,FS15-3R3C,FS15-5C,FS15-12C,FS15-15C,FS15-24C,FS30-3R3C,FS30-5C,FS30-12C,FS30-15C,,FS30-24C,FST30-5FF,SFS5C-D,SFS10C-D,FS15C-D,FS30C-D,SFD10-55,SFD10-1212,SFD10-1515,PS1R5-5-3R3,PS1R5-5-5,PS1R5-5-12,PS1R5-5-15,PD1R5-5-1212,PD1R5-5-1515,PS1R5-12-3R3,PS1R5-12-5,PS1R5-12-12,PS1R5-12-15,PD1R5-12-1212,PD1R5-12-1515,PS1R5-24-3R3,PS1R5-24-5,PS1R5-24-12,PS1R5-24-15,PD1R5-24-1212,PD1R5-24-1515,PS1R5-48-3R3,PS1R5-48-5,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。PS1R5-48-12,PS1R5-48-15,PD1R5-48-1212,PD1R5-48-1515,PS3-5-3R3,PS3-5-5,PS3-5-12,PS3-5-15,PD3-5-1212,PD3-5-1515,PS3-12-3R3,PS3-12-5,PS3-12-12,PS3-12-15,PD3-12-1212,PD3-12-1515,PS3-24-3R3,PS3-24-5,PS3-24-12,PS3-24-15,PD3-24-1212,PD3-24-1515,PS3-48-3R3,PS3-48-5,PS3-48-12,PS3-48-15,PD3-48-1212,PD3-48-1515,PS6-5-3R3,
PS6-5-5,PS6-5-12,PS6-5-15,PD6-5-1212,PD6-5-1515,PD6-5-0512,PD6-5-0515,PS6-12-3R3,,PS6-12-5,PS6-12-12,PS6-12-15,PD6-12-1212,PD6-12-1515,PD6-12-0512,PD6-12-0515,PS6-24-3R3,PS6-24-5,PS6-24-12,PS6-24-15,PD6-24-1212,PD6-24-1515,PD6-24-0512,PD6-24-0515,PS6-48-3R3,PS6-48-5,PS6-48-12,PS6-48-15,PD6-48-1212,PD6-48-1515,PD6-48-0512,,PD6-48-0515,PS10-5-3R3,PS10-5-5,PS10-5-12,PS10-5-15,PD10-5-1212,PD10-5-1515,PD10-5-0512,PD10-5-0515,PS10-12-3R3,PS10-12-5,PS10-12-12,PS10-12-15,PD10-12-1212,PD10-12-1515,PD10-12-0512,PD10-12-0515,PS10-24-3R3,PS10-24-5,PS10-24-12,PS10-24-15,PD10-24-1212,PD10-24-1515,PD10-24-0512,PD10-24-0515,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。PS10-48-3R3,PS10-48-5,PS10-48-12,PS10-48-15,PD10-48-1212,PD10-48-1515,PD10-48-0512,PD10-48-0515,PS15-5-3R3,PS15-5-5,PS15-5-12,PS15-5-15,PD15-5-55,PD15-5-1212,PD15-5-1515,PS15-12-3R3,PS15-12-5,PS15-12-12,PS15-12-15,PD15-12-55,PD15-12-1212,PD15-12-1515,PS15-24-3R3,,PS15-24-5,PS15-24-12,PS15-24-15,PD15-24-55,PD15-24-1212,PD15-24-1515,PS15-48-3R3,,PS15-48-5,PS15-48-12,PS15-48-15,PD15-48-55,PD15-48-1212,PD15-48-1515,PS25-5-3R3,,,PS25-5-5,PS25-5-12,PS25-5-15,PD25-5-55,PD25-5-1212,PD25-5-1515,PS25-12-3R3,PS25-12-5,PS25-12-12,PS25-12-15,PD25-12-55,PD25-12-1212,PD25-12-1515,PS25-24-3R3,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。PS25-24-5,PS25-24-12,PS25-24-15,PD25-24-55,PD25-24-1212,PD25-24-1515,PS25-48-3R3,PS25-48-5,PS25-48-12,PS25-48-15,PD25-48-55,PD25-48-1212,PD25-48-1515,PTS10-24-3R3,PTS10-24-5,PTS10-24-12,PTS10-24-15,PTD10-24-55,PTD10-24-1212,PTD10-24-1515,PTS10-48-3R3,PTS10-48-5,PTS10-48-12,PTS10-48-15,PTD10-48-55,PTD10-48-1212,PTD10-48-1515,PTS15-24-3R3,PTS15-24-5,PTS15-24-12,PTS15-24-15,PTD15-24-55,PTD15-24-1212,PTD15-24-1515,PT15-24-322,PT15-24-522,PT15-24-3FF,PT15-24-5FF,PTS15-48-3R3,PTS15-48-5,PTS15-48-12,PTS15-48-15,PTD15-48-55,PTD15-48-1212,PTD15-48-1515,PT15-48-322,PT15-48-522,PT15-48-3FF,PT15-48-5FF,PTS25-24-3R3,PTS25-24-5,PTS25-24-12,PTS25-24-15,PTD25-24-55,PTD25-24-1212,PTD25-24-1515,PT25-24-322,PT25-24-522,PT25-24-3FF,PT25-24-5FF,

 其共同缺點(diǎn)是輸入功率因數(shù)低，諧波電流大，直流電路需要大的儲(chǔ)能電容，再生能量又不能反饋回電網(wǎng)，即不能進(jìn)行四象限運(yùn)行。為此，矩陣式交—交變頻應(yīng)運(yùn)而生。由于矩陣式交—交變頻省去了中間直流環(huán)節(jié)，從而省去了體積大、價(jià)格貴的電解電容。它能實(shí)現(xiàn)功率因數(shù)為l，輸入電流為正弦且能四象限運(yùn)行，系統(tǒng)的功率密度大。該技術(shù)雖尚未成熟，但仍吸引著眾多的學(xué)者深入研究。其實(shí)質(zhì)不是間接的控制電流、磁鏈等量，而是把轉(zhuǎn)矩直接作為被控制量來(lái)實(shí)現(xiàn)的。具體方法是：[8]控制定子磁鏈引入定子磁鏈觀測(cè)器，實(shí)現(xiàn)無(wú)速度傳感器方式；[8]自動(dòng)識(shí)別(ID)依靠的電機(jī)數(shù)學(xué)模型，對(duì)電機(jī)參數(shù)自動(dòng)識(shí)別；[8]算出實(shí)際值對(duì)應(yīng)定子阻抗、互感、磁飽和因素、慣量等算出實(shí)際的轉(zhuǎn)矩、定子磁鏈、轉(zhuǎn)子速度進(jìn)行實(shí)時(shí)控制；


中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。PTS25-48-3R3,PTS25-48-5,PTS25-48-12,PTS25-48-15,PTD25-48-55,PTD25-48-1212,36-72V,PTD25-48-1515,PT25-48-322,PT25-48-522,PT25-48-3FF,PT25-48-5FF,SNS5A-5-1R0,SNS5A-5-1R2,SNS5A-5-1R5,SNS5A-5-1R8,SNS5A-5-2R0,SNS5A-5-2R5,SNS5A-5-3R3,SNS5A-12-1R0,SNS5A-12-1R2,SNS5A-12-1R5,SNS5A-12-1R8,SNS5A-12-2R5,SNS5A-12-3R3,SNS5A-12-5R0,SNS6A-5-1R0,SNS6A-5-1R2,SNS6A-5-1R5,SNS6A-5-1R8,SNS6A-5-2R0,SNS6A-5-2R5,SNS6A-5-3R3,SNS10A-5-1R0,SNS10A-5-1R2,SNS10A-5-1R5,SNS10A-5-1R8,SNS10A-5-2R0,SNS10A-5-2R5,SNS10A-5-3R3,SNS10A-12-1R0,SNS10A-12-1R2,SNS10A-12-1R5,SNS10A-12-1R8,SNS10A-12-2R5,SNS10A-12-3R3,SNS10A-12-5R0,SPS1R5-5-3R3,SPS1R5-5-5,SPS1R5-5-12,SPS1R5-5-15,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。SPD1R5-5-1212,SPD1R5-5-1515,SPS1R5-12-3R3,SPS1R5-12-5,SPS1R5-12-12,SPS1R5-12-15,SPD1R5-12-1212,SPD1R5-12-1515,SPS1R5-24-3R3,SPS1R5-24-5,SPS1R5-24-12,SPS1R5-24-15,SPD1R5-24-1212,SPD1R5-24-1515,SPS1R5-48-3R3,SPS1R5-48-5,,,SPS1R5-48-12,SPS1R5-48-15,SPD1R5-48-1212,SPD1R5-48-1515,SPS3-5-3R3,SPS3-5-5,SPS3-5-12,SPS3-5-15,SPD3-5-1212,SPD3-5-1515,SPS3-12-3R3,SPS3-12-5,SPS3-12-12,SPS3-12-15,SPD3-12-1212,SPD3-12-1515,SPS3-24-3R3,SPS3-24-5,SPS3-24-12,SPS3-24-15,SPD3-24-1212,SPD3-24-1515,SPS3-48-3R3,SPS3-48-5,SPS3-48-12,SPS3-48-15,SPD3-48-1212,SPD3-48-1515,,SPS6-5-3R3,SPS6-5-5,SPS6-5-12,SPS6-5-15,SPD6-5-1212,SPD6-5-1515,SPS6-12-3R3,SPS6-12-5,SPS6-12-12,SPS6-12-15,SPD6-12-1212,SPD6-12-1515,SPS6-24-3R3,SPS6-24-5,SPS6-24-12,SPS6-24-15,SPD6-24-1212,SPD6-24-1515,SPS6-48-3R3,SPS6-48-5,SPS6-48-12,SPS6-48-15,SPD6-48-1212,SPD6-48-1515,SPS10-5-3R3,SPS10-5-5,SPS10-5-12,SPS10-5-15,SPD10-5-1212,SPD10-5-1515,
中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。SPS10-12-3R3,SPS10-12-5,SPS10-12-12,SPS10-12-15,SPD10-12-1212,SPD10-12-1515,SPS10-24-3R3,SPS10-24-5,SPS10-24-12,SPS10-24-15,SPD10-24-1212,SPD10-24-1515,SPS10-48-3R3,SPS10-48-5,SPS10-48-12,SPS10-48-15,SPD10-48-1212,SPD10-48-1515,SNS15A-5-1R0,SNS15A-5-1R2,SNS15A-5-1R5,SNS15A-5-1R8,SNS15A-5-2R0,SNS15A-5-2R5,PBR50-24-2R5,PBR50-24-3R3,PBR50-24-5,PBR50-24-12,PBR50-24-15,PBR50-48-2R5,PBR50-48-3R3,PBR50-48-5,PBR50-48-12,PBR50-48-15,UBC160-48-12,78NS1R5A-5-1R0V,78NS1R5A-5-1R2V,78NS1R5A-5-1R5V,78NS1R5A-5-1R8V,78NS1R5A-5-2R0V,78NS1R5A-5-2R5V,78NS1R5A-5-3R3V,HRS50-48-3R3,

 [8]實(shí)現(xiàn)Band—Band控制按磁鏈和轉(zhuǎn)矩的Band—Band控制產(chǎn)生PWM信號(hào)，對(duì)逆變器開(kāi)關(guān)狀態(tài)進(jìn)行控制。[8]矩陣式交—交變頻具有快速的轉(zhuǎn)矩響應(yīng)(<2ms)，很高的速度精度(±2%，無(wú)PG反饋)，高轉(zhuǎn)矩精度(<+3%)；同時(shí)還具有較高的起動(dòng)轉(zhuǎn)矩及高轉(zhuǎn)矩精度，尤其在低速時(shí)(包括0速度時(shí))，可輸出150%～200%轉(zhuǎn)矩。[8]變頻器的選用選用變頻器的類型，按照生產(chǎn)機(jī)械的類型、調(diào)速范圍、靜態(tài)速度精度、起動(dòng)轉(zhuǎn)矩的要求，決定選用那種控制方式的變頻器合適。所謂合適是既要好用，又要經(jīng)濟(jì)，以滿足工藝和生產(chǎn)的基本條件和要求。需要控制的電機(jī)及變頻器自身1）電機(jī)的極數(shù)。一般電機(jī)極數(shù)以不多于(極為宜，否則變頻器容量就要適當(dāng)加大。

中山立訊電氣有限公司銷售韓國(guó)POWERPLAZA開(kāi)關(guān)電源價(jià)格優(yōu)惠。HRS50-48-5,HRS50-48-12,HRS50-48-15,HRS50-48-24,HRS50-72-3R3,HRS50-72-5,HRS50-72-12,HRS50-72-15,HRS50-72-24,HRS50-96-3R3,HRS50-96-5,HRS50-96-12,HRS50-96-15,HRS50-96-24,SNS15A-5-3R3,SNS15A-12-1R0,SNS15A-12-1R2,SNS15A-12-1R5,SNS15A-12-1R8,SNS15A-12-2R5,SNS15A-12-3R3,SNS15A-12-5R0,SNS16A-5-1R0,SNS16A-5-1R2,,,SNS16A-5-1R5,SNS16A-5-1R8,SNS16A-5-2R0,SNS16A-5-2R5,SNS16A-5-3R3,HF100-Q24-3R3,,,12-36V,HF100-Q24-5,HF100-Q48-3R3,HF100-Q48-5,HS150-24-3R3,HS150-24-5,HS150-24-12,,,18-36V,HS150-48-3R3,HS150-48-5,HS150-48-12,NES50-48-1R5,NES50-48-1R8,NES50-48-2R5,,,NES50-48-3R3,UQC18A-48-12,NB600-48-12,NB600-72-12,NB600-96-12,78NS3A-12-3R3V,78NS3A-12-5R0V,HS100-24-24,SPS20-24-3R3,SPS20-24-5,SPS20-24-12,SPS20-24-15,SPD20-24-1212,SPD20-24-1515,SPS20-48-5,SPS20-48-12,SPD20-48-1212,YPM600-48-12,SPD20-48-1515,YPM600-72-12,YPM600-96-12,

 都是必不可少的。中文名轉(zhuǎn)速表外文名tachometer應(yīng)用行業(yè)機(jī)械行業(yè)用處電機(jī)的轉(zhuǎn)速、線速度或頻率適用領(lǐng)域飛機(jī)、輪船等制造業(yè)工作原理磁性原理目錄1轉(zhuǎn)速概念2工作原理?技術(shù)參數(shù)?工作優(yōu)點(diǎn)3轉(zhuǎn)速表分類?離心式轉(zhuǎn)速儀?磁性轉(zhuǎn)速儀4用途轉(zhuǎn)速概念編輯轉(zhuǎn)速是旋轉(zhuǎn)體轉(zhuǎn)數(shù)與時(shí)間之比的物理量，工程上通常表示為轉(zhuǎn)速=旋轉(zhuǎn)次數(shù)/時(shí)間，是描述物體旋轉(zhuǎn)運(yùn)動(dòng)的一個(gè)重要參數(shù)。電工中常需要測(cè)量電機(jī)及其拖動(dòng)設(shè)備的轉(zhuǎn)速，使用的就是便攜式轉(zhuǎn)速表。轉(zhuǎn)速表是用來(lái)測(cè)量電機(jī)轉(zhuǎn)速和線速度的儀表。轉(zhuǎn)速表種類較多，便攜式一般有機(jī)械離心式轉(zhuǎn)速表和數(shù)字電子式轉(zhuǎn)速表。工作原理編輯轉(zhuǎn)速表將接收的數(shù)字脈沖信號(hào)（由傳感器發(fā)出的），處理后直接讀入cpu的計(jì)數(shù)口。