產(chǎn)品詳情
變頻器怎么選型是咱們技術(shù)人員和商務(wù)報價人員常常遇到的問題。我依據(jù)作業(yè)實踐經(jīng)歷給咱們總結(jié)的一些辦法和思路。沒有觸及對任何品牌的傾向性觀點，如有不當和缺乏的當?shù)兀釉蹅兊拇蟊娞枤g迎和咱們進行溝通。
首要要思考的要素包括：品牌，功率，電流，電壓，負載（即是電機拖動的設(shè)備），運用場合另外還有一些選配件要在挑選的時分留意比如操控面板是不是獨自收購，需求不需求用濾波器，電抗器，制動電阻制動單元等。一些專業(yè)設(shè)備要挑選專用變頻器。比如注塑機，電梯，紡織一些場合挑選專用變頻器更好用。
一，不管思考商業(yè)仍是技術(shù)角度品牌挑選的是非常重要的。
商場上可以說有上百種品牌，ABB，西門子，施耐德是商場占有量比較大的進口品牌。我大致給咱們介紹下變頻器的品牌，
歐美品牌
ABB,西門子，施耐德，偉墾，SEW,AB,丹佛斯，艾默生，伊頓，倫茨，
日韓品牌
富士，安川，三菱，歐姆龍，東芝，三墾，日立，東芝，松下，三星
臺灣
臺達，東元
國產(chǎn)品牌
匯川，英威騰，利德華福，普傳，三晶，歐瑞，新時達，康沃，藍海華騰，派尼爾，森蘭，正弦等
二功率的挑選
一般變頻器類型都是按功率大小進行界說類型的，如西門子6SE6430-2UD33-0DB0 為30KW變頻器，可是ABB類型是按電流界說的ACS510-01-046A-4是46A 22KW，值得留意的是進口品牌的操控面板都需求獨自收購，變頻器報價不含操控面板，而國產(chǎn)變頻器一般都包括操控面板。
一般來說電機的功率是變頻器挑選變頻器功率的根底?？墒侵档昧粢獾氖亲冾l器時應(yīng)以實踐電機電流值作為變頻器挑選的依據(jù)，電機的額外功率只能作為參考。
風機水泵運用場合負載較小，一般變頻器廠家都有專門的系列變頻器。國產(chǎn)一般是P系列，進口如ABB一般運用ACS510，西門子430，施耐德ATV61等等，而一些特別場合負載大一般都要恰當?shù)臄U大檔運用。
1、依據(jù)負載特性挑選變頻器如負載為恒轉(zhuǎn)矩負載可挑選西門子MM440 變頻器，ABB公司ACS800系列變頻器等；如負載為風機、泵類負載可挑選西門子MM430變頻器，ABB公司ACS510系列變頻器等。
2、挑選變頻器時應(yīng)以實踐電機電流值作為變頻器挑選的依據(jù)，電機的額外功率只能作為參考。其次，應(yīng)充分思考變頻器的輸出富含高次諧波，會造成電動機的功率因數(shù)和功率都會變壞。
3、變頻器若要長電纜工作時，變頻器應(yīng)擴大一檔挑選或在變頻器的輸出端裝置輸出電抗器。
4、當變頻器用于操控并聯(lián)的幾臺電機時，必定要思考變頻器到電動機的電纜的長度總和在變頻器的容許范圍內(nèi)。
5、關(guān)于一些特別的運用場合，如高環(huán)境溫度、高開關(guān)頻率、高海拔高度等，此刻會導致變頻器的降容，變頻器需擴大一檔挑選.
6、挑選用于高速電動機的變頻器時，應(yīng)比一般電動機的變頻器稍大一些。
7、變頻器用于變極電動機時，應(yīng)充分留意挑選變頻器的容量，使其最大額外電流在變頻器的額外輸出電流以下。
8、驅(qū)動防爆電動機時，變頻器沒有防爆結(jié)構(gòu)，應(yīng)將變頻器設(shè)置在風險場合以外。
9、運用變頻器驅(qū)動齒輪減速電動機時，運用范圍遭到齒輪滾動有些光滑方法的制約。不要超越最高轉(zhuǎn)速容許值。
10、變頻器驅(qū)動繞線轉(zhuǎn)子異步電動機時，大多是利用已有的電動機。容易發(fā)生因為紋波電流而導致的過電流跳閘景象，所以應(yīng)挑選比一般容量稍大的變頻器。
11、變頻器驅(qū)動同步電動機時，與工頻電源比較，下降輸出容量10%～20%。
12、關(guān)于壓縮機、振動機等轉(zhuǎn)矩動搖大的負載和油壓泵等有峰值負載情況下，應(yīng)了解工頻工作情況，挑選比其最大電流更大的額外輸出電流的變頻器。
13、當變頻器操控羅茨風機時，因為其起動電流很大，所以挑選變頻器時必定要留意變頻器的容量是不是足夠大。
14、挑選變頻器時，必定要留意其防護等級是不是與現(xiàn)場的情況相匹配。
15、單相電動機不適用變頻器驅(qū)動。 如果單有變頻器本體的高可靠性，而變頻器選型和容量匹配不恰當，組成的變頻調(diào)速體系也不可能到達很高的可靠性，甚至無法工作，那么怎么來保證變頻調(diào)整體系正常高效工作呢？
咱們要保證變頻器的容量匹配。首要依據(jù)負荷性質(zhì)，準確選用變頻器類型?？偟臏蕜t即是啥性質(zhì)負載特性配啥特性的變頻器。
(1)恒轉(zhuǎn)矩出產(chǎn)設(shè)備--在調(diào)速范圍內(nèi)，負載力矩根本穩(wěn)定不變。應(yīng)選具有恒轉(zhuǎn)矩功能的變頻器。其過載才能為150%額外電流保持1分鐘。
(2)平方轉(zhuǎn)矩出產(chǎn)設(shè)備--在調(diào)速范圍內(nèi)，負荷力矩與轉(zhuǎn)速的平方成正比，即M∝n2，離心式風機，水泵為它的典型代表。具有M∝n2特性的變頻器其過載才能較小，110%-120%額外電流過載1分鐘，
(3)恒功率負荷出產(chǎn)設(shè)備-在調(diào)速范圍內(nèi)，轉(zhuǎn)速低力矩大;轉(zhuǎn)速高力矩小，即M?NC(常數(shù))。典型設(shè)備如機床及卷繞組織。
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Motorola MCP750-1222A
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Motorola MCP750-1232A
Motorola MCP750-1242
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Motorola MCP750HA-1322
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Motorola MCPN750-1222
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Motorola MPMC282-012A
Motorola MPMC301-001
Motorola MTX604-004A
Motorola MTX604-010A
Motorola MTX604-010A Dual 300MHz
Motorola MVIP302
Motorola MVIP303
Motorola MVIP341
Motorola MVIP530
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Motorola MVME101
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Motorola MVME143 MVME143-2
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MVME1604 MVME1603"
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Motorola MVME197LE 50MHz 32MB (NEW)
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Motorola MVME197LE/MVME297-002 50MHz 128MB
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Motorola MVME197LE/MVME297-004 50MHz 310MB
Motorola MVME197LE/MVME297-128 50MHz 192MB
Motorola MVME197QP 512MB
Motorola MVME197SP 50MHz 128MB
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Motorola MVME297-002 64MB
Motorola MVME297-003 128MB
Motorola MVME297-004 256MB
Motorola MVME297-128 128MB
Motorola MVME300
Motorola MVME300
Motorola MVME300A
Motorola MVME315
Motorola MVME316
Motorola MVME320A
Motorola MVME323
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MVME333
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Motorola MVME385-120
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Motorola MVME4604-1141 Dual 200MHz 64MB
Motorola MVME4604-5362 Dual 300MHz 256MB
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Dual 400MHz 256MB
Motorola MVME5100-0131
Motorola MVME5110-2251
Motorola MVME705-1
Motorola MVME705A
Motorola MVME705A
Motorola MVME705B
Motorola MVME710B
Motorola MVME712-104
Motorola MVME712M
Motorola MVME712M MVME712/M
Motorola MVME714
Motorola MVME719
Motorola MVME741
Motorola MVME742
Motorola MVME761-001
Motorola MVME761EXT
Motorola MVME785-MIC
Motorola MVME854TK 01-W2755D01C
Motorola MVME946
Motorola MVPI300
Motorola MVSB741
Motorola PMC-Span 01-W3298F01A
Motorola PPMC750-1231
Motorola PV5300B33
Motorola SMMXER3E100X0
Motorola SuperNode system with the following boards: 01-W1589B01C 01-W1590B01B 01-W1591B04L 01-W1644B04BB 01-W2844D01H 01-W2844D02H 01-W2845D03G 01-W2845D04G 01-W3896B01F
Motorola TMCP700-001
Motorola XR-342 XR342
Motorola XR712-121K
Motorola XR712-123TPK
