HC-KFE43B三菱電機單相交流焊接變壓器實際上是一種特殊用途的降壓變壓器,與普通變壓器相比,其基本工作原理大致相同。為滿足焊接工藝的要求,焊接變壓器在短路狀態(tài)下工作,HC-KFE43B要求在焊接時具有一定的引弧電壓。當焊接電流增大時,輸出電壓急劇下降,當電壓降到零時即二次側短路,二次側電流也不致過大等等,即焊接變壓器具有陡降的外特性,焊接變壓器的陡降外特性是靠電抗線圈產生的壓降而獲得的??蛰d時,HC-KFE43B由于無焊接電流通過,電抗線圈不產生壓降,此時空載電壓等于二次電壓,也就是說焊接變壓器空載時與普通變壓器空載時相同。三菱HC-KFE43B變壓器的空載電流一般約為額定電流的%~%國家規(guī)定空載電流不應大于額定電流的0%。這就是口訣和公式的理論依據。
三菱電機代理銷售 程軍 139 188 644 73 qq 937 926 739
測知電流求容量
測知無銘牌電動機的空載電流,估算其額定容量
口訣:
無牌電機的容量,測得空載電流值,
乘十除以八求算,近靠等級千瓦數(shù)。
說明:口訣是對無銘牌的三相異步電動機,不知其容量千瓦數(shù)是多少,可按通過測量電動機空載電流值,估算電動機容量千瓦數(shù)的方法。
測知電力變壓器二次側電流,求算其所載負荷容量
口訣:
已知配變二次壓,測得電流求千瓦。
電壓等級四百伏,一安零點六千瓦。
電壓等級三千伏,一安四點五千瓦。
電壓等級六千伏,一安整數(shù)九千瓦。
電壓等級十千伏,一安一十五千瓦。
電壓等級三萬五,一安五十五千瓦。
說明:
電工在日常工作中,常會遇到上級部門,管理人員等問及電力變壓器運行情況,負荷是多少電工本人也常常需知道變壓器的負荷是多少。負荷電流易得知,直接看配電裝置上設置的電流表,或用相應的鉗型電流表測知,可負荷功率是多少,不能直接看到和測知。這就需靠本口訣求算,否則用常規(guī)公式來計算,既復雜又費時間。
“電壓等級四百伏,一發(fā)零點六千瓦。”當測知電力變壓器二次側電壓等級00V負荷電流后,安培數(shù)值乘以系數(shù)0便得到負荷功率千瓦數(shù)。
測知白熾燈照明線路電流,求算其負荷容量
照明電壓二百二,一安二百二十瓦。
說明:工礦企業(yè)的照明,多采用0V的白熾燈。照明供電線路指從配電盤向各個照明配電箱的線路,照明供電干線一般為三相四線,負荷為kW以下時可用單相。照明配電線路指從照明配電箱接至照明器或插座等照明設施的線路。不論供電還是配電線路,只要用鉗型電流表測得某相線電流值,然后乘以0系數(shù),積數(shù)就是該相線所載負荷容量。測電流求容量數(shù),可幫助電工迅速調整照明干線三相負荷容量不平衡問題,可幫助電工分析配電箱內保護熔體經常熔斷的原因,配電導線發(fā)熱的原因等等。
GP2600-SC41-24 VB-3A FX2N-32MR-D MDS-B-SPJ2X-22 MDS-D-SP-400 MT6050iV2,5.6寸 FX3U-128MT-ES-A HF-KP43G HC-UFS72
MR-J2CN1/MR-J2S伺 EPC7062TX GT1675M-VTBA MDS-B-SPJ2X-37 MDS-D-SP-640 MT6050i,10.4寸 FX3GA-24MR-CM MR-J10MA HF-MP23
AJ55TB32-8DR TPC7062KX GT1575-VTBA MDS-B-SPJ2X-110 MDS-D-CV-37 MT8070ih ,7寸 FX3GA-40MR-CM MR-H200AC HF-KP43J-S6
FR-D740-1.5K-CHT IPC1701-S QJ71PB92V MDS-B-SPJ2X-01 MDS-D-CV-75 MT8100i ,10寸 FX3GA-60MR-CM HC-AQ0136S-S4 HF-KN73J-S100
FR-A740-3.7K-CHT VB-32XYT A9GT-RS2 MDS-C1-V2-4535 MDS-D-CV-110 MT6070iH,7寸 FX3GA-24MT-CM MR-J2-100B-S73 HF-SP61E1K-S1 -HC-KFE43B
三菱伺服電機J2S/J3系列700W/1KW/2KW/1.5KW/3.5KW/5KW/7KW編碼器 VH-14MT FR-DU07 MDS-C1-V2-7045 MDS-D-CV-185 A1SX71 FX3GA-40MT-CM MR-H200A HA-MH13
FX1S-10MR VH-14MR A9GT-RS4 MDS-C1-V2-7070 MDS-D-CV-300 A1SJ71T32-S3 FX3GA-60MT-CM HA-ME23B HF-KP43G7
HC-MFS/KFS23G2 (1/5) 13三菱伺服電機資料規(guī)格圖片尺寸150 C
HC-MFS/KFS23G2 (1/9) 14三菱伺服電機資料規(guī)格圖片尺寸150 C
HC-MFS/KFS23G2 (1/20) 16三菱伺服電機資料規(guī)格圖片尺寸070 C
HC-MFS/KFS23G2 (1/29) 16三菱伺服電機資料規(guī)格圖片尺寸250 C
HC-MFS/KFS23BG2 (1/5) 15三菱伺服電機資料規(guī)格圖片尺寸950 C
HC-MFS/KFS23BG2 (1/9) 17三菱伺服電機資料規(guī)格圖片尺寸020 C
HC-MFS/KFS23BG2 (1/20) 19三菱伺服電機資料規(guī)格圖片尺寸110 C
HC-MFS/KFS23BG2 (1/29) 19三菱伺服電機資料規(guī)格圖片尺寸110 C
HC-MFS/KFS43K 6三菱伺服電機資料規(guī)格圖片尺寸880 C
HC-MFS/KFS43B 8三菱伺服電機資料規(guī)格圖片尺寸890 B
HC-MFS/KFS43BK 9三菱伺服電機資料規(guī)格圖片尺寸860 C
HC-MFS/KFS43G1(1/5) 8三菱伺服電機資料規(guī)格圖片尺寸480 C
HC-MFS/KFS43G1(1/12) 8三菱伺服電機資料規(guī)格圖片尺寸730 C
HC-MFS/KFS43G1(1/20) 8三菱伺服電機資料規(guī)格圖片尺寸790 C
HC-MFS/KFS43BG1(1/5) 11三菱伺服電機資料規(guī)格圖片尺寸470 C
HC-MFS/KFS43BG1(1/12) 11三菱伺服電機資料規(guī)格圖片尺寸720 C
HC-MFS/KFS43BG1(1/20) 11三菱伺服電機資料規(guī)格圖片尺寸770 C
HC-MFS/KFS43G2 (1/5) 14三菱伺服電機資料規(guī)格圖片尺寸220 C
HC-MFS/KFS43G2 (1/9) 17三菱伺服電機資料規(guī)格圖片尺寸200 C
HC-MFS/KFS43G2 (1/20) 19三菱伺服電機資料規(guī)格圖片尺寸692 C
HC-MFS/KFS43G2 (1/29) 20三菱伺服電機資料規(guī)格圖片尺寸350 C
HC-MFS/KFS43BG2 (1/5) 17三菱伺服電機資料規(guī)格圖片尺寸200 C
HC-MFS/KFS43BG2 (1/9) 20三菱伺服電機資料規(guī)格圖片尺寸350 C
HC-MFS/KFS43BG2 (1/20) 22三菱伺服電機資料規(guī)格圖片尺寸740 C
HC-MFS/KFS43BG2 (1/29) 23三菱伺服電機資料規(guī)格圖片尺寸320 C
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