广东快乐十分

  • 用电流距加查表的方法来计算下电压降

    广东快乐十分 YIZHITIAOJIAN:JULIL=0.63km,GONGLVWEIP=18.5KW,EDINGDIANYAU=380V,GONGLVYINSHUQUcosφ0.8,XIAOLVQUη:90%;WOMENLAIQIUXUANYONGDUODADEDIANLANNENGMANZUDIANYAJIANGBUDAYU5%。 SHOUXIANJISUANDIANLIU:I=P/√3U*cosφ*η=18.5/1.732*0.38*0.8*0.9=39A ZHENGCHANGANDIANLIUXUAN10mm²JIUGOULE,DANSHIYOUYUJULIYUANDIANYAJIANGHENDA,WOMENSHOUXIANXUANZEXIAOYANDEJIE

    2020-06-06

  • 三相电路功率和电流计算公式

    SANXIANGDIANLU SANXIANGDIANLUGONGLVJISUANGONGSHI:SANXIANGDIANLUDIANLIUJISUANGONGSHI:

    2019-12-27

  • 电机电流的计算公式是什么?具体怎么计算

    广东快乐十分 SANXIANGDIANJIJISUANGONGSHI√3BIAOSHIWULISHU, √3=1.732 U BIAOSHIEDINGDIANYA I BIAOSHIEDINGDIANLIU cosφ BIAOSHIGONGLVYINSU,BUTONGDIANJIBUYIYANG。SANXIANGDIANJIYIBANQU0.85 η BIAOSHIXIAOLV,BUTONGDIANJIBUYIYANG。SANXIANGDIANJIYIBANQU0.95 JUGELIZI 1TAI75KWDESANXIANGYIBUDIANJI,QIUTADEEDINGDIANLIUDAXIAO? JIE:

    2019-12-04

  • 电机电流的计算公式是什么?具体怎么计算

    广东快乐十分 SANXIANGDIANJIJISUANGONGSHI√3BIAOSHIWULISHU, √3=1.732 U BIAOSHIEDINGDIANYA I BIAOSHIEDINGDIANLIU cosφ BIAOSHIGONGLVYINSU,BUTONGDIANJIBUYIYANG。SANXIANGDIANJIYIBANQU0.85 η BIAOSHIXIAOLV,BUTONGDIANJIBUYIYANG。SANXIANGDIANJIYIBANQU0.95 JUGELIZI 1TAI75KWDESANXIANGYIBUDIANJI,QIUTADEEDINGDIANLIUDAXIAO? JIE:

    2019-10-04

  • 西门子S7-1231RTD热电阻输入模块编程时通道值如何处理

    广东快乐十分 ZAIXIMENZIPLCZHONGKEYIZHIJIEJIERURTDXINHAODEMONILIANGMOKUAI,CHULEQIHOUXINGXINHAODEMOKUAIDEDURUSHUZHIHESHIJIWENDUZHIJIANSHI0.01BEIGUANXIZHIWAI,QITADEDOUSHI0.1BEIDEGUANXI,JIPLCDUSHUCHENGYI0.1JIUSHISHIJIWENDU。 ERNISHUODEZHEIGE1231 RTDDEMOKUAI,WOKANLEYIXIAYINGJIANPEIZHI,BUGUANSHI4TONGDAODEHAISHI8TONGDAODEMOKUAI,TAKEYIJIERUDEXINHAODOUSHIBIAOZHUNXINGDE,SUOYIQIDUZHIHESHIJIWENDUZHIJIANDEGUANXIYESHI0.1BEI,YINWEIDOUBIAOZHUNXINGDE! KANYIXIAYINGJIANPEIZHIHETONGDAOSHEZHIDEQINGKUANGCONGZHEIGETU

    2019-06-28

  • 三相380V电机额定电流的计算公式

    广东快乐十分 SANXIANG380VDIANJIEDINGDIANLIUDEJISUANGONGSHIWEI:I = P/(√3 * U * cos φ * η)SHIZHONGDEDANWEIDINGYI:P = GONGLV (W),U = DIANYA (V),I = DIANLIU (A),cos φ = GONGLVYINSHU,η = XIAOLV (%)。SHEDIANJIGONGLVYINSHUWEI0.8,XIAOLVWEI90%,JISUANRUXIA:I=80000÷(1.732×380×0.8&ti

    2019-06-28

  • led功率因数如何计算公式

    YINWEILEDSHIYIGEBANDAOTIERJIGUAN,TAXUYAOZHILIUGONGDIAN,RUGUOYONGSHIDIANGONGDIANDEHUA,JIUYIDINGHUIYOUYIGEZHENGLIUQI,TONGCHANGSHIERJIGUANZHENGLIUQIAO。WEILEDEDAOJINKENENGPINGHUADEZHILIUBIMIANCHUXIANWENBOSHANSHUO,TONGCHANGDOUXUYAOJIASHANGYIGEDADIANJIEDIANRONG。ERHOUMIANDELEDKEYIJINSIWEIYIGEDIANZU,SUOYIZHENGGEDIANLURUTU3SUOSHI。   TU3. LEDDENGJUDEDENGXIAODIANLU   QIGEZHONGDIANLIUDIANYARUTU4SUOSHI。   TU4. QIAOSHIZHENGLIUJIADIANRONGLVBOHOUDEDIANYADIANLIUBOXING   ZHENGLIUHOUDEDIANYADIANLIUBOXINGDOUBUSHIZHENGXIANBO,ERQIE

    2019-04-22

  • 电工基础口诀_维修电工实用口诀大全

    广东快乐十分 DIANGONGJICHUKOUJUE_WEIXIUDIANGONGSHIYONGKOUJUEDAQUANDIYIZHANG ANGONGLVJISUANDIANLIUDEKOUJUE 1.YONGTU: ZHEISHIGENJUYONGDIANSHEBEIDEGONGLV(QIANWAHUOQIANFUAN)SUANCHUDIANLIU(AN)DEKOUJUE。 DIANLIUDEDAXIAOZHIJIEYUGONGLVYOUGUAN,YEYUDIANYA,XIANGBIE,LILV(YOUCHENGGONGLVYINSHU)DENGYOUGUAN。YIBANYOUGONGSHIKEGONGJISUAN,YOUYUGONGCHANGCHANGYONGDEDOUSHI380/220 FUSANXIANGSIXIANXITONG,YINCI,KEYIGENJUGONGLVDEDAXIAOZHIJIESUANCHUDIANLIU。 2.KOUJUE:DIYA380/220 FUXITONGMEIKW DEDIANLIU,AN。 QIANWA,DIANLIU,RUHEJISUAN?

    2019-04-22

  • 铜管的重量计算公式_铜管重量计算方法

    TONGGUANDEZHONGLIANGJISUANGONGSHI_TONGGUANZHONGLIANGJISUANFANGFA TONGGUANMEIMIZHONGLIANGJISUANGONGSHI:  1、RUGUOSHIZITONGGUAN,JICHUNTONGGUANDEHUA,NEIMETONGGUANZHONGLIANGJISUANGONGSHIJIUSHI:MEIMIZHONGLIANG(kg)=0.02796*BIHOU*(WAIJING-BIHOU)  2、RUGUOSHIHUANGTONGGUAN,NEIMETONGGUANZHONGLIANGJISUANGONGSHIJIUSHI:MEIMIZHONGLIANG(kg)=0.02670*BIHOU*(WAIJING-BIHOU)  TONGGUANZHONGLIANGJISUANFANGFAJITONGGUANZHONGLIANG?TONGGUANZHONGLIANGJISUANFANGFA:  1、YUANZITONGGUANZHONGLIANG(GONGJIN)=0.02796BIHOU(WAIJING-BIHOU)ZHANGDU  2

    2019-04-22

  • 电线长度怎么计算公式

    DIANXIANZHANGDUZENMEJISUANGONGSHIDIANQIZHAOMINGDIANXIANZHANGDUJISUAN:DIANXIANZHANGDU=(SHUIPING+CHUIZHI+YULIU)×(1+2.5%)(CHIDU、BOXINGWANDU、JIAOCHAXISHU)1、SHUIPINGZHANGDU:CONGDENGJUDAOZHAOMINGXIANGDESHUIPINGJULIZHANGDU;2、CHUIZHIZHANGDU:DENGJUDEANZHUANGDUDAODINGBANJULIZHANGDU,ZHAOMINGPEIDIANXIANGDAODINGBANHUODIBANZHIJIANJULIZHANGDU。3、YULIUZHANGDU:ZHAOMINGPEIDIANXIANGNEIYULIUZHANGDUWEIXIANGZIDEBANZHOUZHANG(XIANGZHANG+XIANGKUAN),JIEXIANHENEIYULIUZHANGDU(YIBANWEI150mm×XINSHU)。4、BOWEN、GUAIWANJIJIAOCHAXISHU:YI

    2019-04-22

  • 减速机扭矩计算公式_减速机扭矩的计算方法

    JIANSUJINIUJUJISUANGONGSHI_JIANSUJINIUJUDEJISUANFANGFAJIANSUJINIUJU=9550×DIANJIGONGLV÷DIANJIGONGLVSHUCHUZHUANSHU×SUBI×JIANSUJISHIYONGXIAOLV(60%-96%)(TONGDENGDIANJIGONGLVHEJIANSUJICHENGSHOUFANWEINEI,JIANSUBIYUEDAJIANSUJISHUCHUNIUJUYUEDAZHUANSHUYUEMAN,TONGLIJIANSUBIYUEXIAO,JIANSUJISHUCHUNIUJUYUEXIAOZHUANSHUYUEKUAI)XIANZAIHENDUOJIANSUJINIUJUJISUANGONGSHIRUXIASHICUOWUDE,JIKEHUXUANXINGHUOSHEJIRENYUANZAOCHENGCUOWUDELIJIE,DINGZHENGRUXIA: 1.ZHIDAODIANJIGONGLVHE

    2019-04-22

  • 电气设备故障诊断口诀大全

    广东快乐十分 DIANQIGUZHANGXIANXIANGSHIDUOZHONGDUOYANGDE,LIRU,TONGYILEIGUZHANGKENENGYOUBUTONGDEGUZHANGXIANXIANG,BUTONGLEIGUZHANGKENENGSHITONGYIZHONGGUZHANGXIANXIANG,ZHEIZHONGGUZHANGXIANXIANGDETONGYIXINGHEDUOYANGXING,JICHAZHAOGUZHANGDAILAILEFUZAXING。DANSHI,GUZHANGXIANXIANGSHICHAZHAODIANQIGUZHANGDEJIBENYIJU,SHICHAZHAODIANQIGUZHANGDEQIDIAN,YINERYAODUIGUZHANGXIANXIANGZIXIGUANCHAFENXI,ZHAOCHUGUZHANGXIANXIANGZHONGZUIZHUYAODE、ZUIDIANXINGDEFANGMIAN,GAOQINGGUZHANGFASHENGDESHIJIAN、DIDIAN、HUANJINGDENG。JIANCEDIANQIGUZHANGCHANGJIANDELIANGZHONGFANGFAZHIJIEGANZHIYOUXIEDIANQIGUZHANGKEYITONGGUORENDESHOU、YAN、BI、ERDENGQIGUAN,CAIYONGMO

    2019-04-22

  • 电机功率计算公式_单相电机功率计算公式

    DIANJIGONGLVJISUANGONGSHI_DANXIANGDIANJIGONGLVJISUANGONGSHIDIANJISHURUGONGLVSHIP=UI.SHUCHUGONGLVSHIP=FV。FAREGONGLVWEIP=UI-FV=I*IR GONGLVDEJIBENGONGSHISHI:P=FV(FWEILI:NIUDUN,V:SUDU,m/S)RUGUOBATAHUANSUANDAODIANJIZEYOU:P=F*(2πN/60)*R (N:DIANJISUDU(DANWEI:RPM=ZHUAN/FENZHONG),R:XUANZHUANBANJING)=F*R*(2πN/60)YINWEIT=FRSUOYIP=T*N/(60/2π)=TN/9.55(P:DANWEI

    2019-04-22

  • 电容公式中rc是什么?rc电容充电计算公式

    DIANRONGGONGSHIZHONGrcSHISHENME JIASHEYOUDIANYUANVuTONGGUODIANZURJIDIANRONGCCHONGDIAN,V0WEIDIANRONGSHANGDECHUSHIDIANYAZHI,VuWEIDIANRONGCHONGMANDIANHOUDEDIANYAZHI,VtWEIRENYISHIKEtSHIDIANRONGSHANGDEDIANYAZHI,NEIMEBIANKEYIDEDAORUXIADEJISUANGONGSHI: Vt = V0 + (Vu – V0) * [1 – exp( -t/RC)] RUGUODIANRONGSHANGDECHUSHIDIANYAWEI0,ZEGONGSHIKEYIJIANHUAWEI: Vt = Vu * [1 – exp( -t/RC)] (

    2019-04-22

  • 测量相对误差计算公式

    CELIANGXIANGDUIWUCHAJISUANGONGSHI JUEDUIWUCHASHIJIZHIMINGWUCHADEDAXIAO,YOUZHIMINGQIZHENGFUFANGXIANG,YITONGYIDANWEILIANGGANGFANYINGCELIANGJIEGUOPIANLIZHENZHIDAXIAODEZHI,TAQUEQIEDIBIAOSHILEPIANLIZHENZHIDESHIJIDAXIAO。 XIANGDUIWUCHASHIZHI“CELIANGDEJUEDUIWUCHAYUBEICELIANGDEZHENZHIZHIBI”,JIGAIWUCHAXIANGDANGYUCELIANGDEJUEDUIWUCHAZHANZHENZHI(HUOJICHUZHI)DEBAIFENBIHUOYONGSHULIANGJIBIAOSHI,TASHIYIGEWULIANGGANGDEZHI。YOUDEJILIANGQIJUCONGSHIJISHIYONGDEXUYAOCHUFA,WEILEQUEDINGQIZHUNQUEDUHUOYUNXUWUCHA,WANGWANGYONGYINYONGWUCHAHEFENBEIWUCHALAI

    2019-04-22

  • 电机转子转动惯量计算公式

    广东快乐十分 DIANJIZHUANZIZHUANDONGGUANLIANGJISUANGONGSHIZHUANDONGGUANLIANGHEZHIDONGLIJUDEJISUAN,DUIYUDINGWEIKONGZHIERYAN,KEYIYONGYUZHUNQUEDIYUCEQISHIJIANSUDIANDEWEIZHI,JIBUNENGRANGZHUANZITIQIANTINGZHI,YEBUNENGRANGCANYUGUANXINGTAIDA,TUPODIANJIDEDINGWEILIJU。HAIYAOZAIJIANSUDEGUOCHENGDANGZHONG,YIJUCELIANGDESHUNSHISUDU,DUIZHIDONGLIJUJINXINGJUBUDIAOZHENG,YIYINGDUIYOUKENENGCHUXIANDEWAIBUGANRAO。YIXIAJIUSHIYIJUTUODAIEDINGFUHEDEDINGWEISHIYANSUOHUODEDEZHIDONGJULI,ZHUNQUEDIJISUANCHUKONGZAIXIAQISHIJIANSUDIAN。FUHEZHUANDONGGUANLIANG:GANGPANNEIJING 25mm,WAIJING52mm,ZHONGLIANG0.

    2019-04-22

  • 三相异步电机功率计算公式解释

    广东快乐十分 SANXIANGYIBUDIANJIGONGLVJISUANGONGSHIJIESHI  SANXIANGYIBUDIANJIGONGLVGONGSHI:P=√3*U*I*cosj  ZHEIGEGONGSHISHIYONGYUSANXIANGDUICHENGFUZAIDEDIANLU,ZHIYOUSANXIANGYIBUDIANJIYINGYONGZAISANXIANGDUICHENGFUZAIZHONG,CIGONGSHICAICHENGLI。  P—SHIDIANJISHURUYOUGONGGONGLV  U—SHIDIANJIDIANYUANSHURUDEXIANDIANYA  I—SHIDIANJIDIANYUANSHURUDEXIANDIANLIU  cosj—SHIDIANJIDEGONGLVYINSHU  j —SHIXIANGDIANYAYUXIANGDIANLIUDEXIANGWEICHAJIAO

    2019-04-22

  • 铜线电阻率计算公式

    TONGXIANDIANZULVJISUANGONGSHI TONGDIANZULV(20℃SHI)WEI0.Ω·mm2/m,YEJIUSHIJIEWEI1PINGFANGHAOMI、ZHANGDUWEI1MIDETONGDAOXIANDIANZUSHI0.Ω。BUTONGWENDUXIADEDIANZULVHUIYOUXIECHABIE,DIANZULVYOUYIGEWENDUXISHU。HENGJIEMIANJI1mm^2;1mZHANGDETONGXIAN,DIANZUSHI0.017OUMUZHANG1MI、HENGJIEMIANJISHI1PINGFANGHAOMIDEZAICHANGWENXIA(20℃SHI)DAOXIANDEDIANZU,JIAOZUOZHEIZHONGCAILIAODEDIANZULV.CHUNTONGDEDIANZULV0.0175Ω/m.1.13mm

    2019-04-22

  • 变压器损耗怎么算_变压器损耗率计算公式

    广东快乐十分 BIANYAQISUNHAOZENMESUAN_BIANYAQISUNHAOLVJISUANGONGSHIBIANYAQISUNHAOSHIZHIKONGZAISUNHAOPo、DUANLUSUNHAOPkJIZASANSUNHAOPsZHIHE。BIANYAQIDEKONGZAISUNHAOHEFUZAISUNHAOFENBIEZHIDESHITIESUNHETONGSUN.BIANYAQIDESUNSHIDIANLIANGYOUTIESUNHETONGSUNLIANGBUFENZUCHENG。TIESUNYUYUNXINGSHIJIANYOUGUAN,TONGSUNYUFUHEDAXIAOYOUGUAN。YINCI,YINGFENBIEJISUANSUNSHIDIANLIANG。1、 TIESUNDIANLIANGDEJISUAN:BUTONGXINGHAOHERONGLIANGDETIESUNDIANLIANG,JISUANGONGSHISHI:TIESUNDIANLIANG(QIANWASHI)=KONGZAISUNHAO(QIANWA)×GONGDIANSHIJIAN(XIAOSHI) PEIBIANDEKONGZAISUNHAO(TIESUN

    2019-04-22

  • 功率因数怎么计算公式

    GONGLVYINSHUZENMEJISUANGONGSHIGONGLVYINSHUcosΦ=cosarctg(WUGONGDIANLIANG/YOUGONGDIANLIANG)GONGLVYINSHUJISUANGONGSHIFENWEIHAOJIZHONG:1)YIBANYONGGONGSHICOSφ=P/S , COSφSHIGONGLVYINSU;PYOUGONG;SWUGONG;2)DIERZHONGKEYIYONGCOSφ=R/Z ,RDIANZU ZZONGDEZUKANG;DENGFANGSHI。ZAIGONGLVSANJIAOXINGZHONG,YOUGONGGONGLVPYUSHIZAIGONGLVSDEBIZHI,CHENGWEIGONGLVYINSHUcosφ,QIJISUANGONGSHIWEI: cosφ=P/S=P/[(P

    2019-04-22

  • 怎么算三相电机电流?三相380v电机电流计算公式

    ZENMESUANSANXIANGDIANJIDIANLIU?SANXIANG380vDIANJIDIANLIUJISUANGONGSHISANXIANGDIANJIDIANLIUJISUANGONGSHII=P/1.732/U/cosΦ,cosΦSHISHENME,WEISHENMEYOUGEcosΦ。I=P/1.732/UZHEIGEGONGSHISHIDUIDEHAISHICUODE?SHENMEQINGKUANGXIAHUIYONGDAOcosΦ。I=P/1.732/UZHEIGEGONGSHISHICUODE,ZHENGQUEYINGSHII=P/(1.732*U*cosΦ)。cosΦSHIZAIJIAOLIUDIANLUZHONG,DIANYAYUDIANLIUZHIJIANDEXIANGWEICHA(Φ

    2019-04-22

  • 配电电力变压器的选择口诀

    广东快乐十分 PEIDIANDIANLIBIANYAQIDEXUANZEKOUJUEKOUJUE:DIANLIBIANYAQIXUANRONGLIANG, ZONGYONGDIANSHEBEICHENGTONGSHILV。 ZAICHUGONGLVYINSHUHEXIAOLV。SHUOMING:ZONGYONGDIANSHEBEISHIZHIGONGCHANGSUOYOUSHEBEIGONGLVZHIHE,TONGSHILVSHIZHITONGSHIJIANTOURUYUNXINGDESHEBEISHIJIRONGLIANGYUYONGDIANSHEBEIRONGLIANGDEBIZHI,YIBANXUANYUEWEI0.7GONGLVYINSHU:YIBANXUAN0.8-0.9XIAOLV:YIBANWEI0.85-0.9DIANLIBIANYAQIRONGLIANG=YONGDIANSHEBEIZONGRONGLIANG×TONGSHILV/YONGDIANSHEBEIDEGONGLVYINSHU×YONGDIANSHEBEIXIAOLVLI:YOUYIGONGCHANGYONGDIANSHEBEIZONGRONGLIANG700QIANV

    2019-04-22

  • 电工常用计算公式_常用电工计算口诀大全

    广东快乐十分 DIANGONGCHANGYONGJISUANGONGSHI_CHANGYONGDIANGONGJISUANKOUJUEDAQUANYI、YONGDIANSHEBEIDIANLIUGUSUAN:DANGZHIDAOYONGDIANSHEBEIDEGONGLVSHIKEYIGUSUANTADEEDINGDIANLIU:SANXIANGDIANDONGJIDEEDINGDIANLIUANZHAODIANJIGONGLVDE2BEISUAN,JIMEIQIANWACHENGYI2JIUSHIEDINGDIANLIUDEDIANLIULIANG,PIRUYIGESANXIANGDIANJIDEEDINGGONGLVWEI10QIANWA,ZEEDINGDIANLIUWEI20 ANPEI。ZHEIZHONGGUSUANFANGSHIDUISANXIANGSHULONGSHIYIBUDIANDONGJIYOUQISHISIJIZUIWEIJIEJIN,DUIYUQITALEIXINGDEDIANDONGJIYEKEYIDANXIANG220VDIANDONGJIMEIQIANWADIANLIUAN8AJISUANSANXIANG380VDIANHANJIMEIQIANWADIANLIUAN2.7A

    2019-04-22

  • 变压器低压侧短路电流计算公式

    广东快乐十分 BIANYAQIDIYACEDUANLUDIANLIUJISUANGONGSHIDANGBIANYAQIERCICETURANDUANLUSHI,RAOZUNEIDUANLUDIANLIUFENGZHIWEIIsm=√2KsIs=√2Ks*100*IφN/(uz+us),Ism-----RAOZUNEIDUANLUDIANLIUFENGZHI(A),Is-----WENTAIDUANLUDIANLIU;Ks-----XISHU,ZHONGXIAORONGLIANGBIANYAQIWEI1.2~1.4,DARONGLIANGSHIWEI1.7~1.8;IφN-----EDINGXIANGDIANLIU;us----XITONGDUANLUZUKANGBAIFENSHU,us=Sn&t

    2019-04-22

  • 视在功率是什么意思?视在功率计算公式

    广东快乐十分 SHIZAIGONGLVSHISHENMEYISI?SHIZAIGONGLVJISUANGONGSHIZAIJIAOLIUDIANLUZHONG,YOUYUYOUGANXINGHUORONGXINGCHUNENGSHEBEI,DIANYAYUDIANLIUYOUXIANGWEICHA,TONGSUJIANGJIUSHIDIANYAYUDIANLIUBUZAITONGYISHIJIANDAODA;YINCI,BIAOMIANKANDIANYAYOUDUODA、DIANLIUYOUDUODA,SHIJIBINGMEIYOUZUONEIMEDADEGONG,YOUDIANYUANYUCHUNENGSHEBEIDENENGLIANGZHUANHUAN;SUOYICHENGWEISHIZAIGONGLV。JI,YOUGONGGONGLV+WUGONGGONGLV。DIANLIBIANYAQIJIUYONGSHIZAIGONGLVBIAOSHIRONGLIANG,DANWEIWEIFUAN(VA)。YISISHIBUGUANYOUGONGGONGLVYUWUGONGGONGLVSHIDUOSHAO,ZHINENGSHUCHUZHEIMEDADEDIANYAYUDIANLIU。SHIZAIGONGLV:ZAIJUYOUZUKANG

    2019-04-22

var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?be055eb5acfdc25d3bd72279b8418725"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })();