广东11选5

变频器批发

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变频器基础知识问答90例,新手入门神器(下)

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变频器基础知识问答90例,新手入门神器(下)

发布日期:2019-03-26 作者: 点击:

如何确定外接制动电阻的阻值?

一般可参照说明书提供的数据进行选择。如需加强制动效果、缩短制动时间,也可以自行试验确定。变频器厂

SHIYANSHI,DATIYINGZHANGWOYIXIAYUANZE:

(1) ZHIDONGDIANLIUIBBUDECHAOGUOBIANPINQIDEEDINGDIANLIUIN。CHUXUANSHI,YINGANIB≤(1/3~1/2)INLAIQUEDINGZHIDONGDIANZUZHI;

RB≤UDmax/(1/3~1/2)INPANGPANGPANG(3-1)

广东11选5SHIZHONG,UDmaxSHIZAIDIANYUANDIANYAYUNXUBODONGDEFANWEINEI,DANGZAISHENGZHIDONGKAISHISHI,ZHILIUDIANYAKENENGCHUXIANDEFENGZHI。ZAIDIANYUANDIANYAWEI380VSHI,UDmaxKEAN695VJISUAN。BIANPINQICHANG

(2) ZAIZHIDONGXIAOGUODEDAOMANZUDEQIANTIXIA,RBDEZHIYINGJINLIANG


多个外接制动组件并用时需注意些什么?

广东11选5DANGZHIYONGYIGEWAIJIEZHIDONGWAIJIANBUZUYUMANZUSUOXUYAODEZHIDONGXIAOGUOSHI,KEYISHIYONGDUOGEWAIJIEZUJIANLAIJIAQIANGZHIDONGXIAOGUO。ZAIZHEIZHONGQINGKUANGXIA,BIXUZHUYI:BIANPINQICHANG

广东11选5(1) GEWAIJIEZHIDONGWAIJIANZHIJIANSHIBINGLIANDE,BINGLIANHOUDEZONGZHIDONGDIANZUZHIRBEBIXUMANZU:

广东11选5RBE≥UDmax/IN

(2) GEZHIDONGZUJIANSHANGREJIDIANQIDECHUDIANZHIJIANYINGGAICHUANLIAN


什么是直流制动?

DANGYIBUDIANDONGJIDEDINGZIRAOZUZHONGTONGRUZHILIUDIANLIUSHI,SUOCHANSHENGDECICHANGJIANGSHIKONGJIANWEIZHIBUBIANDEHENGDINGCICHANG。

广东11选5RUZHUANZIYINGUANXINGERJIXUYIZHUANSUnXUANZHUANSHI,ZHUANZIRAOZULIDEGANYINGDIANLIUYIJIZHUANZIRAOZUSUOSHOUDIANCILIDEFANGXIANGJIANGXINGCHENGYUnFANGXIANGXIANGFANDEZHIDONGLIJU 。TONGSHI,HENGDINGCICHANGYELITUJIANGZHUANZITIEXINLAOLAOXIZHU,JINYIBUCUSHIZHUANZIXUNSUTINGXIALAI。ZHEIZHONGZAIDINGZIRAOZUZHONGTONGRUZHILIUDIANLIUERSHIDIANJIXUNSUZHIDONGDEFANGFACHENGWEIZHILIUZHIDONG,YEJIAONENGHAOZHIDONG。

ZAIBIANPINDIAOSUXITONGZHONG,ZHILIUZHIDONGZHUYAOYONGYUXIAOCHUQUDONGXITONGZAIZHUANSUJIEJINYU0SHIDE“PAXING”XIANXIANG


为什么要设定U/f比?

DIANJIXUEDEFENXIBIAOMING:YIBUDIANDONGJIJINXINGBIANPINDIAOSUSHI,RUGUOQISHURUDIANYASUIPINLVTONGBUXIAJIANGDEHUA,DIANJISHUCHUZHOUSHANGDELINJIEZHUANJUTKYEJIANGYOUSUOXIAJIANG。SUODEDAODEJIXIETEXINGQUXIANZURUTU4-1SUOSHI。ZHEISHIYINWEI,DANGDIANYASUIPINLVZUOTONGBUXIAJIANGSHI,DINGZIRAOZUZHONGDEGONGLVSUNSHII12R1BINGWUBIANHUA,CONGER,ZHUANHUANDAOZHUANZIZHOUSHANGDEJIXIEGONGLVSUOZHANDEFENEBIRANJIANSHAODEYUANGU

LINJIEZHUANJUDEJIANXIAODAOZHIDIANDONGJIDAIFUZAINENGLI(SHUCHUZHUANJU)DEXIAJIANG,ZHEIDANGRANSHIBUSHOUHUANYINGDE。JIEJUEDEBANFASHIZAIDIANYAYUPINLVTONGBUDIAOJIE(U/f=DINGZHI,CHENGWEIJIBENU/fBI)DEJICHUSHANG,SHIDANGTIGAODIANYA,JIDIAOZHENGLEU/fBI。ZHEIZHONGFANGFAYEJIAOZHUANJUBUCHANG。


变频器怎样实现点动?

ZAIJIXIEDIAOZHENGGUOCHENGZHONG,YIJIJINSHUQIEXUEJICHUANGZHUANGSHANGGONGJIANHOUDEXIAOZHENGGUOCHENGZHONG,CHANGCHANGXUYAO“DIAN-DONG、DONG-DONG”,WEIZHIDIANDONG,YINGYUSHIJOG,YEYOUYICHENGWEIDONGHUOCUNDONGDE。BIANPINQICHANG

广东11选5SHIXIANDIANDONGDEFANGSHIZHUYAOYOULIANGZHONG:

广东11选5WAIJIEKONGZHI ZAIDIANDONGJIEXIANDUANJOGYUGONGGONGDUANCOMZHIJIERUANNIUKAIGUANJIKE,DADUOSHUBIANPINQIDOUBEIYOUDIANDONGJIEXIANDUAN

广东11选5JIANPANKONGZHI BUFENBIANPINQIZAIMIANBANSHANGZHUANMENPEIZHILEDIANDONGJIAN,JINXINGDIANDONGKONGZHI。

各类变频器都具有设定点动频率的功能。调试时,点动频率需视机械的具体需要来进行设定。可以先设定得低一些,再酌情增高。


为什么要进行多挡频率设定?

广东11选5ZAIJIXIEDECHENGXUKONGZHIZHONG,BUTONGDECHENGXUDUANCHANGCHANGXUYAOBUTONGDEZHUANSU。WEICI,BIANPINQIKEYIYUXIANSHEDINGDUOZHONGYUNXINGPINLV,YIMANZUYONGHUDEXUYAO。

广东11选5YONGHUZAIJINXINGBIANPINQIDEYUZHISHEDINGSHI,KEGENJUJIXIEDEYAOQIU,YUXIANSHEDINGHAORUOGANDANGYUNXINGPINLV,GONGCHENGXUKONGZHISHIXUANYONG


电压型与电流型有什么不同?

广东11选5  BIANPINQIDEZHUDIANLUDATISHANGKEFENWEILIANGLEI:DIANYAXINGSHIJIANGDIANYAYUANDEZHILIUBIANHUANWEIJIAOLIUDEBIANPINQI,ZHILIUHUILUDELVBOSHIDIANRONG;DIANLIUXINGSHIJIANGDIANLIUYUANDEZHILIUBIANHUANWEIJIAOLIUDEBIANPINQI,QIZHILIUHUILULVBOSHIDIANGAN。


为什么变频器的电压与电流成比例的改变?

YIBUDIANDONGJIDEZHUANJUSHIDIANJIDECITONGYUZHUANZINEILIUGUODIANLIUZHIJIANXIANGHUZUOYONGERCHANSHENGDE,ZAIEDINGPINLVXIA,RUGUODIANYAYIDINGERZHIJIANGDIPINLV,NEIMECITONGJIUGUODA,CIHUILUBAOHE,YANZHONGSHIJIANGSHAOHUIDIANJI。YINCI,PINLVYUDIANYAYAOCHENGBILIDIGAIBIAN,JIGAIBIANPINLVDETONGSHIKONGZHIBIANPINQISHUCHUDIANYA,SHIDIANDONGJIDECITONGBAOCHIYIDING,BIMIANRUOCIHECIBAOHEXIANXIANGDECHANSHENG。ZHEIZHONGKONGZHIFANGSHIDUOYONGYUFENGJI、BENGLEIJIENENGXINGBIANPINQI。


电动机使用工频电源驱动时,电压下降则电流增加;对于变频器驱动,如果频率下降时电压也下降,那么电流是否增加?

广东11选5PINLVXIAJIANG(DISU)SHI,RUGUOSHUCHUXIANGTONGDEGONGLV,ZEDIANLIUZENGJIA,DANZAIZHUANJUYIDINGDETIAOJIANXIA,DIANLIUJIHUBUBIAN。MAIBIANPINQISHOUXUANANBANGXIN15037162627


采用变频器运转时,电机的起动电流、起动转矩怎样?

广东11选5CAIYONGBIANPINQIYUNZHUAN,SUIZHEDIANJIDEJIASUXIANGYINGTIGAOPINLVHEDIANYA,QIDONGDIANLIUBEIXIANZHIZAI150%EDINGDIANLIUYIXIA(GENJUJIZHONGBUTONG,WEI125%~200%)。YONGGONGPINDIANYUANZHIJIEQIDONGSHI,QIDONGDIANLIUWEI6~7BEI,YINCI,JIANGCHANSHENGJIXIEDIANQISHANGDECHONGJI。CAIYONGBIANPINQICHUANDONGKEYIPINGHUADIQIDONG(QIDONGSHIJIANBIANZHANG)。QIDONGDIANLIUWEIEDINGDIANLIUDE1.2~1.5BEI,QIDONGZHUANJUWEI70%~120%EDINGZHUANJU;DUIYUDAIYOUZHUANJUZIDONGZENGQIANGGONGNENGDEBIANPINQI,QIDONGZHUANJUWEI100%YISHANG,KEYIDAIQUANFUZAIQIDONG。


在说明书上写着变速范围60~6hz,即10:1,那么在6hz以下就没有输出功率吗?

广东11选5ZAI6hzYIXIARENGKESHUCHUGONGLV,DANGENJUDIANJIWENSHENGHEQIDONGZHUANJUDEDAXIAODENGTIAOJIAN,ZUIDISHIYONGPINLVQU6hzZUOYOU,CISHIDIANDONGJIKESHUCHUEDINGZHUANJUERBUHUIYINQIYANZHONGDEFAREWENTI。BIANPINQISHIJISHUCHUPINLV(QIDONGPINLV)GENJUJIZHONGWEI0.5~3hz.


对于一般电机的组合是在60hz以上也要求转矩一定,是否可以?

TONGCHANGQINGKUANGXIASHIBUKEYIDE。ZAI60hzYISHANG(YEYOU50hzYISHANGDEMOSHI)DIANYABUBIAN,DATIWEIHENGGONGLVTEXING,ZAIGAOSUXIAYAOQIUXIANGTONGZHUANJUSHI,BIXUZHUYIDIANJIYUBIANPINQIRONGLIANGDEXUANZE。


所谓开环是什么意思?

JISUOSHIYONGDEDIANJIZHUANGZHISHESUDUJIANCHUQI(pg),JIANGSHIJIZHUANSUFANKUIJIKONGZHIZHUANGZHIJINXINGKONGZHIDE,CHENGWEI“BIHUAN”,BUYONGpgYUNZHUANDEJIUJIAOZUO“KAIHUAN”。TONGYONGBIANPINQIDUOWEIKAIHUANFANGSHI,YEYOUDEJIZHONGLIYONGXUANJIANKEJINXINGpgFANKUI。


实际转速对于给定速度有偏差时如何办?

KAIHUANSHI,BIANPINQIJISHISHUCHUJIDINGPINLV,DIANJIZAIDAIFUZAIYUNXINGSHI,DIANJIDEZHUANSUZAIEDINGZHUANCHALVDEFANWEINEI(1%~5%)BIANDONG。DUIYUYAOQIUDIAOSUJINGDUBIJIAOGAO,JISHIFUZAIBIANDONGYEYAOQIUZAIJINYUJIDINGSUDUXIAYUNZHUANDECHANGHE,KECAIYONGJUYOUpgFANKUIGONGNENGDEBIANPINQI(XUANYONGJIAN)。BIANPINQICHANG


如果用带有pg的电机,进行反馈后速度精度能提高吗?

JUYOUpgFANKUIGONGNENGDEBIANPINQI,JINGDUYOUTIGAO。DANSUDUJINGDUDEZHIQUJUEYUpgBENSHENDEJINGDUHEBIANPINQISHUCHUPINLVDEFENBIANLV。


失速防止功能是什么意思?

广东11选5RUGUOJIDINGDEJIASUSHIJIANGUODUAN,BIANPINQIDESHUCHUPINLVBIANHUAYUANYUANCHAOGUOZHUANSU(DIANJIAOPINLV)DEBIANHUA,BIANPINQIJIANGYINLIUGUOGUODIANLIUERTIAOZHA,YUNZHUANTINGZHI,ZHEIJIUJIAOZUOSHISU。WEILEFANGZHISHISUSHIDIANJIJIXUYUNZHUAN,JIUYAOJIANCHUDIANLIUDEDAXIAOJINXINGPINLVKONGZHI。DANGJIASUDIANLIUGUODASHISHIDANGFANGMANJIASUSULV。JIANSUSHIYESHIRUCI。LIANGZHEJIEHEQILAIJIUSHISHISUGONGNENG。


有加速时间与减速时间可以分别给定的机种,和加减速时间共同给定的机种,这有什么意义?     

JIAJIANSUKEYIFENBIEJIDINGDEJIZHONG,DUIYUDUANSHIJIANJIASU、HUANMANJIANSUCHANGHE,HUOZHEDUIYUXIAOXINGJICHUANGXUYAOYANGEJIDINGSHENGCHANJIEPAISHIJIANDECHANGHESHISHIYIDE,DANDUIYUFENGJICHUANDONGDENGCHANGHE,JIAJIANSUSHIJIANDOUJIAOZHANG,JIASUSHIJIANHEJIANSUSHIJIANKEYIGONGTONGJIDING。

广东11选5TONGDEZHUANSUYUNXING,XINGCHENGYIGEZIDONGDESHENGCHANLIUCHENG。


什么情况下需设定“转差补偿”?

DADUOSHUJIXIEDOUXIWANGDANGDIANDONGJIZAIMOUYIZHUANSU(PINLV)XIAYUNXINGDE,NENGGOUYOUXIAO“YING”DEJIXIETEXING。JIUSHISHUO,DANGFUZAIZHUANJUCONG0ZENGJIADAOTLSHI,QI“SUDUJIANGLUO”△nYINGJINLIANGDIXIAO,RUTU。DUIYUYAOQIUJIAOGAODEJIXIE,TONGCHANGXUJIEZHUYUSUDUFANKUILAISHIXIANSHANGSHUYAOQIU。




变频器在什么情况下可能出现过电压?


ZHUYAOYOULIANGZHONGQINGKUANG:

广东11选5(1) DIANYUANDIANYAGUOGAO BIANPINQIYIBANYUNXUDIANYUANDIANYAXIANGSHANGBODONGDEFANWEISHI+10%,CHAOGUOCIFANWEISHI,YINGJINXINGBAOHU。

(2) JIANGSUGUOKUAI RUGUOJIANGJIANSUSHIJIANSHEDINGDETAIDUAN,ZAIZAISHENGZHIDONGGUOCHENGZHONGZHIDONGDIANZULAIBUJIJIANGNENGLIANGFANGDIAO,ZHISHIZHILIUHUILUDIANYAGUOGAO,XINGCHENGGUOGAOYA。

广东11选5CHUCIYIWAI,YOUYUXIANLUZHONGYOUDIANGANDEYUANYIN,ZAIGUODUGUOCHENGZHONGYEKENENGCHUXIANSHIJIANJIDUANDESHUNJIANGUODIANYA,ZHEIZHONGGUODIANYAJIQIBAOHU,BUZAIBENWENTAOLUNZHILIE。


变频器怎样进行过电压保护?

BIANPINQIDEGUODIANYAXINHAOYIBANSHICONGZHILIUBUFENQUCHUDE。DANGCHUXIANGUODIANYAXINHAOSHI,WEIJIXITONGJIANGSHOUXIANPANBIESHIFOUZHENGZAIJIANSU?RUGUOSHI,ZEZIDONGYANZHANGJIANSUSHIJIAN,JIANHUANZHIDONGGUOCHENG:RUHAIBUNENGSHIGUODIANYAXINHAOHENKUAIXIAOSHISHI,ZE“TIAOZHA”,YICHAMINGYUANYIN。

广东11选5DUIYUDIANYUANGUODIANYA,MUQIANSHICHANGSHANGDEDABUFENBIANPINQI,YIBANDOUMEIYOUWENYAZHUANGZHI,ZHINENG“TIAOZHA”。


过流、过载和过热的保护对象是什么?

广东11选5GUOLIU,SHIZHIBIANPINQIGUOLIU。JIBIANPINQIDESHUCHUDIANLIUHUOZHILIUHUILUDEDIANLIUCHAOGUOLEEDINGZHI。DUIYUGUOLIUBAOHU,BIANPINQIZAICHUCHANGQIANYIJINGZHENGDINGHAO,YONGHUYIBANBUNENGZIXINGSHEDING。

广东11选5GUOZAI,ZHIDESHIDIANDONGJIDEGUOZAI。YOUYUXIANGTONGDEBIANPINQISUODAIDEDIANDONGJIRONGLIANGBUYIDINGYIYANG,DIANDONGJISUODAIFUHEDETEDIANYEGEBUXIANGTONG,GUGUOZAIBAOHUSHIYOUYONGHUGENJUDIANDONGJIJIFUZAIDEQINGXINGLAIZHENGDINGDE。

GUOREBAOHUDEFANWEIJIAOGUANG,GEZHONGBIANPINQISUOSHEZHIDEBAOHUNEIRONGBUJINYIYANG。GAIKUOQILAI,YOU:DAGONGLVJINGTIGUANGUORE、LENGQUEFENGSHANDEDIANJIGUOREYIJIHUANJINGWENDUGUOGAODENG。GUOREBAOHUYESHIZAICHUCHANGQIANZHENGDINGHAODE。


变频器过流的原因有哪些?

FEIDUANLUXINGGUOLIU

ZHUYAOYUANYINYOU:

(1) DIANDONGJIYANZHONGGUOZAI

(2) DIANDONGJIJIASUGUOKUAI

(3) U/fBI(ZHUANJUBUCHANG)SHEDINGGUOGAOERDIANDONGJICHUYUQINGZAIZHUANGTAI,ZHEISHIYINWEI:

U/fBIGAOSHI,DIANJICILUCHUYUBAOHEZHUANGTAI。QINGZAISHI,ZHUANZIDIANLIUXIAO,QI“FANCISHI”YEXIAO,CILUBAOHECHENGDUJIASHEN,DIANJIDELICIDIANLIUYOUKENENGZENGDADAODADACHAOGUOEDINGDIANLIUDECHENGDU。

DUANLUXINGGUOLIU

ZHUYAOYUANYINYOU:

(1) FUZAICEDUANLU

(2) FUZAICEJIEDI

(3) BIANPINQINIBIANQIAOTONGYIQIAOBEIDESHANGXIALIANGJINGTIGUANTONGSHIDAOTONG,XINGCHENG“ZHITONG”。YINWEIBIANPINQIZAIYUNXINGSHI,TONGYIQIAOBEIDESHANGXIALIANGGUANZONGSHICHUYUJIAOTIDAOTONGZHUANGTAI。ZAIJIAOTIDAOTONGDEGUOCHENGZHONG,BIXUBAOZHENGZHIYOUZAIYIGEJINGTIGUANWANQUANTINGZHIHOU,LINGYIGEJINGTIGUANCAIKAISHIDAOTONG。DANRUGUOYOUYUMOUZHONGYUANYIN(RUHUANJINGWENDUGUOGAO),SHIYUANQIJIANCANSHUFASHENGPIAOYI,JIUKENENGDAOZHIZHITONG。


变频器如何显示故障原因?

GEZHONGBIANPINQIDUIGUZHANGYUANYINDEXIANSHIFANGFAHENBUYIZHI。DATISHUOLAI,YOULIANGLEISANZHONGFANGSHI:

广东11选5(1) YONGFAGUANGERJIGUANXIANSHI BUTONGDEGUZHANGYUANYINYOUGEZIDEFAGUANGERJIGUANLAIXIANSHI。ZHEISUISHIJIAOWEIYUANSHIDEYIZHONGXIANSHIFANGSHI,DANDUICAOZUOZHELAISHUO,JIAOYIZHANGWO,ZHIXUJIZHUNAGEDENGLIANGSHISHENMEGUZHANGJIKE。

(2) YOUSHUMAXIANSHIPINGXIANSHI YOUFENLIANGZHONG:

广东11选51) YONGDAIMAXIANSHI BUTONGDEGUZHANGYUANYINYOUBUTONGDEDAIMALAIXIANSHI。RURIBENSANKENGONGSISHENGCHANDESVFXILIEBIANPINQIZHONG,DAIMA3BIAOSHIGUOZAIGUOLIU;4BIAOSHICHONGJIGUOLIU;5BIAOSHIGUOYADENGDENG。

2) YONGZIFUBIAOSHI ZHENDUIGEZHONGGUOZAIYUANYIN,YONGSUOXIEDEYINGYUZIFU。RUGUOLIUWEIOC(over current):GUOYAWEIOV(over voltage);QIANYAWEILV(low voltage);GUOZAISHIOL(over load);GUORESHIOH(over heat)DENGDENG。CAOZUOZHEZHIXUSHAOJUYINGYUZHISHIBIANKEYIMULERAN,GUXINXITONGBIANPINQIPUBIANCAIYONGZHEIZHONGFANGSHI。


为什么说变频器的输入与输出端绝对不允许接反?

广东11选5YIDANJIANGDIANYUANXIANJIEDAOBIANPINQIDESHUCHUDUAN(U、V、W)SHI,ZERENYIYIGESONGBIANJINGTIGUANYINDEDAOXINHAOERDAOTONG,DOUJIANGXINGCHENGDUANLU,SUOYI,ZAISHEJIBIANPINQIDEZHUDIANLUSHI,BIXUJUEDUIBIMIANDIANYUANTONGRUSHUCHUDUANDEKENENGXING。


变频器的输出端为什么不能接入电容器以改善通入电机的电流波形?

广东11选5YINWEIBIANPINQIDESHUCHUDIANYASHIJUXINGMAICHONGXULIE,HANYOUHENDUOGAOCIXIEBOCHENGFEN。YOUYUDIANRONGQIZAIGAOCIXIEBOXIADERONGKANGJIAOXIAO,GAOCIXIEBODIANLIUJIAODA,ZHEIYIFANGMIANJIAZHONGLENIBIANJINGTIGUANDEFUDAN,LINGYIFANGMIANDIANRONGQIBENSHENYERONGYIYINGUOREERSUNHUAI。


对控制线的布置有些什么要求?

广东11选5YOUYUZHUDIANLUDEDIANLIUJUYOUJIAOQIANGDEGAOCIXIEBOCHENGFEN,RONGYIGANRAOKONGZHIDIANLUDEGONGZUO。SUOYI:

(1) KONGZHIXIANYUZHUDIANLUJIANDEJULIYINGBUXIAOYU100mm 。

(2) KONGZHIXIANYINGHUXIANGJIAORAO,BINGJINLIANGSHIYONGPINGBIXIAN。

(3) DANGKONGZHIXIANYUZHUDIANLUJIAOCHASHI,YINGJINLIANGCHUIZHIXIANGJIAO


驱动系统的调试变频器输出端未接电动机之前,应调试哪些内容?

广东11选5(1) SHOUXIANYAOSHUXIBIANPINQIDEGEZHONGCAOZUO。JIANYANDEFANGFAZHIYI,KERENYISHEDINGYIGEJIASUSHIJIANHEJIANSUSHIJIAN,RANHOULINGBIANPINQIJINRUYUNXINGZHUANGTAIBINGANQIDONGJIANHUOTINGZHIJIAN,GUANCHABIANPINQISHIFOUANSUOSHEDINGDESHIJIAN"JIASU"HUO"JIANSU"。

(2) RUYOUWAIJIESHEDINGHEWAIJIEYIBIAO,ZEZAITONGDIANHOUJINXINGXIAOZHUN。


电动机输出轴未接负载前调试些什么?

(1) GUANCHAJIBENCAOZUODESHISHIQINGKUANG,RUQIDONG、TINGZHI、FANZHUANJIDIANDONGDENG,BINGZHUYI"ZHENGZHUAN"FANGXIANGSHIFOUZHENGQUE。

(2) RUGUOSHIDUODANGZHUANSUDECHENGXUKONGZHIXITONGDEHUA,ZEYINGZAIKONGCHEZHUANGTAIXIARANGCHENGXUKONGZHIYUNXINGYIBIAN,GUANCHAGECHENGXUDUANDEGONGZUOSHIFOUZHUNQUE。


电动机带负载运行时,应注意观察和调整哪些项目?

(1) JIANGJIA、JIANSUSHIJIANDIAOZHENGDAOZUIJIAWEIZHI。YUANZESHI:ZAIBUGUOLIUHUOBUGUOYADEQIANTIXIA,JINLIANGSUODUANJIA、JIANSUSHIJIAN。

广东11选5(2) DIAOZHENGU/fBI:ZAIZUIDIPINSHIDAIFUZAINENGLIMANZUYAOQIUQIANTIXIA,JINLIANGJIANXIAOU/fBI。

(3) GUANCHADANGFUZAIZUIDADEDIANDONGJIDIANLIUJIQICHIXUSHIJIAN,SHIFOUZAIBIANPINQIZHENGCHANGGONGZUODEYUNXUFANWEINEI。

广东11选5(4) ZAIGONGZUOPINLVFANWEINEIHUANMANDIJINXINGDIAOJIE,GUANCHAJIQISHIFOUYOUJULIEZHENDONGDEXIANXIANG,YIQUEDINGSHIFOUXUYAOSHEDINGHUIBIPINLVYIJIHUIBIPINLVDEDAXIAOHEKUANDU。


怎样描述电动机的带载能力?

广东11选5YIBANQINGKUANGXIA,DIANDONGJIDEDAIZAINENGLIYOUEDINGZHUANJUTMNLAIMIAOSHU。YOUYUZHIYOUYIDANGZHUANSU,GUYEKEYIEDINGGONGLVP MNLAIMIAOSHU。LIANGZHEZHIJIANDEGUANXISHI:

广东11选5PMN=TMN·nMN/9550……………………(8-1)

SHIZHONG:TMN--EDINGZHUANJU,N·m

nMN--EDINGZHUANSU,r/s

PMN--EDINGGONGLV,kW

广东11选5BIANPINSHI,DUIYINGYUMEIYIDANGPINLVfx,DIANDONGJIDOUYOUYIGEYUNXUZHANGSHIJIANSHUCHUDEYOUXIAOZHUANJUT MX。JIANGBUTONGPINLVXIADEYOUXIAOZHUANJULIANJIECHENGXIAN,JIWEIDIANDONGJIZAIBIANPINHOUDEDAIZAINENGLIXIAN,HUOCHENGZUOYOUXIAOZHUANJUXIAN。


为什么说平方律负载应用了变频调速后,节能效果特好?

PINGFANGLVFUZAIDIAOSUDEZHUYAOMUDESHIWEILEDIAOJIEYETIHUOQITIDELIULIANG。YONGDIAOJIEFAMENDEFANGFALAISHIXIANSHI,DIANDONGJIDESHUCHUGONGLVJIANXIAODESHIFENYOUXIAN,ERCAIYONGDIAOJIEZHUANSUDEFANGSHILAISHISHISHI,YOU(8-1)SHIHE(8-6)SHIZHI,FUZAIXIAOHAODEGONGLVWEI:

PL=TLnL/9550=KPL·nL3

广东11选5KEJIAN,PLYUn LDESANCIFANGCHENGZHENGBI(SHIZHONG,KPLWEICHANGSHU)。

广东11选5SHEn'L=n LN/2,ZE:P'=PLN/8。JIENENGXIAOGUOYOUCIKEJIAN。


变频调速应用于恒转矩负载时,应注意哪些问题?

HENGZHUANJUFUZAIDEZHUYAOTEDIANSHISHENME?

ZHUYAOTEDIANSHI:DANGZHUANSUGAIBIANSHI,FUZAIDEZUZHUANJUJIBENBAOCHIBUBIAN:

TL ≈ const

广东11选52) U/fBI ZHEISHIDIAOSHIGONGZUOZHONGBIJIAOGUANJIANDEYIHUAN,JIBENYUANZESHI:ZAIZUIDIPINLVSHI(1) PINLVFANWEI YOUYUZAIEDINGPINLVYISHANGDIAOJIESHI,DIANDONGJIDEZHUANJUJIANGXIAJIANGHENDUO,YUHENGZHUANJUDEYAOQIUBUFU,GUZHINENGZAIEDINGPINLVYIXIAJINXINGDIAOJIE。

YENENGDAIDONGFUZAIDEQIANTIXIA,JINLIANGJIANGDIU/fBI。YIBANLAISHUO,DIAOSUFANWEIYUEMI,ZUIDIPINLVYUEDI,U/fBISHEDINGDEYUEDA。

(3) SHENGSUYUJIANGSU HENGZHUANJUFUZAIDELEIXINGJIAODUO,GEZHONGLEIXINGDECHAYIJIAODA,YINGGENJUJUTIQINGKUANGLAIJINXINGSHEDING,BUNENGYIGAIERLUN。


变频调速用于恒功率负载

HENGGONGLVFUZAIDEDIANXINGDAIBIAOSHI:ZHUYUNDONGWEIXUANZHUANYUNDONGDEJINSHUQIEXUEJICHUANG,RUCHECHUANG、XIANCHUANG、MOCHUANGDENG。QIGONGZUOTEDIANZHUYAOYOU:

(1)ZAIBUTONGZHUANSUXIA,YUNXUDEZUIDAQIEXUESUDU(XIANSUDU)SHIXIANGTONGDE。YINCI,DANGGONGJIAN(HUOQIEJU)DEZHIJINGJIAODASHI,ZHUANSUYINGJIAODI,ERQIEXUESHIDEZUZHUANJUZESHIZENGDADE。JIEGUOSHIQIEXUEGONGLVP LWEICHIBUBIAN。

广东11选5(2)ZHUANJUHEZHUANSUJIANDEGUANXISHI:

nL=9550PL/TL≈KLT/TL…………………………(8-10)

广东11选5QIJIXIETEXINGWEISHUANGQUXIAN,RUTU8-6。GAIQUXIANSHANGRENYIYIDIANDETLnLCHENGJIDOUSHIXIANGDENGDE,RUTUZHONGZHIMIANJIOABCHEO'A'B'C'。

广东11选5(3)SUDUXUANDINGHOU,ZAIQIEXUEGUOCHENGZHONGSHIBUJINXINGDIAOSUDE。YINCI,QIWUJIDIAOSUDEGAINIANSHI:NENGGOUDEDAORENYIDESUDU,ERBUSHIZAIGONGZUOGUOCHENGZHONGRENYIDIBIANGENGSUDU。ZHEIYITEDIANBIANPINDIAOSUHEJIXIEDIAOSUDEPEIHESHIYONGTIGONGLEFANGBIAN。


干扰信号可能产生哪些后果?

DANGBIANPINDIAOSUXITONGDERONGLIANGZUGOUDASHI,SUOCHANSHENGDEGAOPINXINHAOJIANGZUYIDUIZHOUWEIGEZHONGDIANZISHEBEIDEGONGZUOXINGCHENGGANRAO,QIZHUYAOHOUGUOYOU:

(1) YINGXIANGWUXIANDIANSHEBEIDEZHENGCHANGJIESHOU。

广东11选5(2) YINGXIANGZHOUWEIJIQIDEZHENGCHANGGONGZUO,SHITAMENYINJIESHOUCUOWUXINHAOERCHANSHENGWUDONGZUO,HUOYINYINGXIANGCHUANGANDIANLUDEJIANCEJINGDUERYINQIPANDUANSHIWU。


干扰的产生与传播情况如何?

广东11选5BIANPINQIDESHURUHESHUCHUDIANLIUZHONG,DOUHANYOUHENDUODEGAOCIXIEBOCHENGFEN(SHUCHUDIANLIUBOXINGJIANQIAN),CHUSHANGSHUDENENGGOUCHENGDIANYUANWUGONGSUNSHIDEJIAODICIXIEBOWAI,YEHAIYOUXUDUOPINLVHENGAODEXIEBOCHENGFEN。TAMENJIANGYIGEZHONGFANGSHIBAZIJIDENENGLIANGCHUANBOCHUQU,XINGCHENGDUIQITASHEBEIDEGANRAOXINHAO。

GANRAOXINHAODECHUANBOFANGSHIZHUYAOYOUYIXIAJIZHONG:

(1) KONGZHONGFUSHEFANGSHI

(2) DIANCIGANYINGFANGSHI,JITONGGUOXIANJIANDIANGANERGANYING

(3) JINGDIANGANYINGFANGSHI,JITONGGUOSIJIANDIANRONGERGANYING

广东11选5(4) XIANLUCHUANBOFANGSHI,ZHUYAOTONGGUODIANYUANWANGLUOERCHUANBO


IGBT及其变频器有哪些主要优点?

YOUYUIGBTBAGTRHEGONGLVCHANGXIAOYINGGUANDETEDIANJIEHEQILAILE,CONGERJIANBEILELIANGZHEDEYOUDIAN:

广东11选5(1) JUYOUJIAOQIANGDEDUIDIANYAHEDIANLIUDECHENGSHOUNENGLI(HEGTRYIYANG)

广东11选5(2) SHURUZUKANGGAO,GUQUDONGDIANLUDEGONGLVXIAO,KEYOUIC(JICHENGDIANLU)ZHIJIEQUDONG(HEGONGLVCHANGXIAOYINGGUANYIYANG)。

广东11选5(3) ZUIGAOGONGZUOPINLV(BIANPINQIDEZAIBOPINLV)JIEYUGTRHEGONGLVCHANGXIAOYINGGUANZHIJIAN,DA15-20kHz。

(4) ANQUANGONGZUOQUJIAOKUAN。

广东11选5130、YONGIGBTZUONIBIANGUANDEBIANPINDIAOSUQIYOUXIESHENMEYOUDIAN?

(1) YOUYUZAIBOPINLVKEDA15kHzZUOYOU,GU:

广东11选51) DIANJIYUNXINGDEZAOSHENGXIAO;

广东11选52) DIANLIUDELIANXUXINGHAO,XIEBOCHENGFENXIAO,CONGERDUIQITASHEBEIDEGANRAOXIAO。

广东11选5(2) YOUYUANQUANGONGZUOQUJIAOKUAN,GUGUOZAINENGLIQIANG。


变频器配置了哪些操作键?

广东11选5GEZHONGBIANPINQIDUICAOZUOJIANDEPEIZHIJIGEJIANDEMINGCHENGCHAYIHENDA,GUINAQILAI,YOUYIXIAJILEI:

广东11选5(1) MOSHIZHUANHUANJIAN:YONGLAIGENGGAIGONGZUOMOSHI。CHANGJIANDEFUHAOYOU:MOD(Mode)、PRG(Program)DENG。

广东11选5(2) ZENGJIANJIAN:YONGYUZENGJIAHUOJIANXIAOSHUJU。CHANGJIANFUHAOSHI△HUO▽、△HUO▽。YOUDEBIANPINQIHAIPEIZHILEHENGXIANGYIWEIJIAN( HUO ),YONGYIJIASUSHUZIDEGENGGAI。

广东11选5(3) DUCHU、XIERUJIAN:ZAIBIANCHENGSHEDINGMOSHISHI,YONGYU“DUCHU”HE“XIERU”SHUJUMA。DUCHUHEXIERULIANGZHONGGONGNENG,YOUDEYONGTONGYIGEANJIANLAIWANCHENG,YEYOUDEFENBIEYONGBUTONGDEJIANLAIWANCHENG。CHANGJIANDEMINGCHENGYOU:READ、WRITE、SET、DATADENG。

(4) YUNXINGCAOZUOJIAN:ZAIANJIANYUNXINGMOSHIXIA,YONGLAIJINXING“YUNXING”、“TINGZHI”DENGCAOZUO。ZHUYAOYOU:RUN(YUNXING)、FWD(ZHENGZHUAN)、REV(FANZHUAN)、STOP(TINGZHI)、JOG(DIANDONG)DENG。ANBANGXINBIANPINQICHENGZHAOGEDIJINGXIAOSHANGJIHEZUOHUOBAN15037162627

广东11选5(5) FUWEIJIAN:YONGYUZAIGUZHANGTIAOZHAHOU,SHIBIANPINQIHUIFUCHENGZHENGCHANGZHUANGTAI。JIANDEMINGCHENGSHI:RESET。

广东11选5(6) SHUZIJIAN:YOUDEBIANPINQIPEIZHILE“0~9 ” HEXIAOSHUDIAN“·”DENGSHUZIJIAN。ZAISHEDINGSHUJUMASHI,KEZHIJIEJIANRUSUOXUDESHUJU。


变频器有几种运行模式?

ZHUYAOYOULIANGZHONG:

(1) ANJIANCAOZUOMOSHI:JITONGGUOANJIANCAOZUOYONGLAIKONGZHIDIANDONGJIDEYUNXINGHETINGZHI。

(2) WAIKONGYUNXINGMOSHI:JITONGGUOWAIJIEKONGZHIXINHAORU:DIANWEIQI:0~±10VDIANYAXINHAO,4~20mADIANLIUXINHAODENGLAIWANCHENGDUIDIANDONGJIDEYUNXINGCAOZUO。BIANPINQICHANG

广东11选5JIUJINGYONGNAZHONGMOSHI,SHIZAIBIANCHENGSHEDINGSHIYUXIANSHEDINGHAOLEDE。


按键操作板拔掉后,变频器能否运行?

广东11选5ZAIXIALIETIAOJIANXIA,ANJIANCAOZUOBANKEYIBADIAO:

(1) DUIGEZHONGGONGNENGDEYUZHISHEDINGYIJINGJINXINGWANBI。

广东11选5(2) ZAIYUZHISHEDINGSHI,YIJINGSHEDINGWEIWAIKONGYUNXINGMOSHI。

(3) JINGSHIYUNXINGZHENGMING,WAIKONGYUNXINGZHENGCHANG。

广东11选5ANJIANCAOZUOBANBADIAO(YOUDEBIANPINQISHIBUNENGBADE)HOU,JIEKOUCHUYINGYONGJUEYUANWUFENGZHU


异步电动机调速时难以控制的原因是什么?

ZHUYAOYUANYINYOU:

(1) LICIDIANLIUHEFUZAIDIANLIUDOUZAIDINGZIHUILUNEI,WUFAFENKAI。

(2) DING、ZHUANZIDIANLIUDOUSHIZHOUQIXINGBIANHUADESHIJIANSHILIANG,ERDING、ZHUANZICITONGYOUSHIRAOZHUANDEKONGJIANSHILIANG,NANYIZHUNQUEDIJINXINGKONGZHI。


变频调速系统能否长时间在低速情况下运行?

ZHEIHEDIANDONGJIDEZHONGLEIYOUGUAN:RUGUOSHIBIANPINDIAOSUDEZHUANYONGDIANJI,ZEZHANGSHIJIANDISUYUNXINGBUCUNZAIRENHEWENTI。RUGUOSHIPUTONGDIANJI,ZEYINWEIDISUSHIDIANDONGJINEIBUDESANREQINGKUANGBIANCHA,QIFUZAINENGLIYOUSUOXIAJIANG。YIBANSHUOLAI:DANGGONGZUOPINLVWEI20HzSHI,FUZAINENGLIZHIYOUEDINGZHIDE90%;ERDANGGONGZUOPINLVWEI1HzSHI,FUZAINENGLIZHIYOUEDINGZHIDE60%ZUOYOU。


低速运行时能保证频率精度吗?

广东11选5YOUYUBIANPINQINEIDOUSHIYONGJISUANJIXITONGJINXINGSHUZILIANGKONGZHIDE,GUPINLVJINGDUBUHUIYOUWENTI。

DISUYUNXINGSHI,ZAIKONGZAIQINGKUANGXIAFANRONGYIYINGUOLIUERTIAOZHA,SHISHENMEYUANYIN?

ZHEISHIYINWEI,WEILENENGDAIDONGFUZAI,ZHUANJUBUCHANG(U/f)SHEDINGDEJIAODA。KONGZAISHI,ZHUANZIDIANLIUHENXIAO,ZHUANZIDIANLIUDEQUCIZUOYONGYEHENXIAO,DIANJICILUCHUYUGAODUBAOHEZHUANGTAI,QILICIDIANLIUJIANGCHUXIANHENDADEJIANFENG,YOUKENENGDAOZHIGUOLIUTIAOZHA。

DUIYUXUYAODISUYUNXINGDEFUZAI,YINGXUANYONGSHENMEYANGDEBIANPINQI?

广东11选5ZUIHAOXUANYONGJUYOU“WUFANKUISHILIANGKONGZHI”GONGNENGDEBIANPINQI。ZHISHAOYEYINGXUANYONGJUYOU“ZIDONGZHUANJUBUCHANG”GONGNENGDEBIANPINQI,KEBIMIANSHANGMIANSUOSHUODEKONGZAISHILIUTIAOZHADEWENTI。


外接给定信号为最大值(+10V)时,输出频率只有48.5Hz(要求50Hz),怎么办?

ZHEIZHONGQINGXINGBIJIAOPUBIAN。YINWAIJIEXINHAODE+10VHEBIANPINQINEIDE+10VZHIJIANHENNANWANQUANYIZHI。JIEJUEDEBANFASHIDIAOZHENGPINLVZENGYI。ZHENDUISHANGSHUJUTILIZI,DIAOZHENGFANGSHIRUXIA:

fmax%=50/48.5=103.9%

广东11选5HUOfma=1.039×50=50.55Hz

广东11选5SHIZHONGfmax--PINLVZENGYIDEDIAOZHENGZHI;f max%SHIQIBAIFENBIZHI


鼓风机在起动前,其风叶常常因自然风而自行转动,有时甚至引起因起动电流过大而跳闸,怎么办?

GUFENGJIDEFENGYEZAIQIDONGQIANYINZIRANFENGERZHUANDONGSHI,QIZHUANXIANGWANGWANGSHIFANFANGXIANGDE,ZHEISHIDIANDONGJIZAIQIDONGSHICHUYU“FANJIE”ZHUANGTAI。RUGUOQIDONGSHIJIANSHEDINGDEJIAODUAN,BINGQIEZIZHUANDONGDESUDUYOUJIAODASHI,YOUKENENGCHUXIANQIDONGDIANLIUGUODADEQINGXING。JIEJUEDEFANGFARUXIA:

广东11选5(1) XINXILIEDEBIANPINDIAOSUQIZHONG,ZHENDUISHANGSHUXIANXIANG,ZHUANMENSHEZHILEQIDONGQIANZHILIUZHIDONGDEGONGNENG,MUDESHI:ZAIQIDONGQIAN,SHIDIANDONGJIDEZHUANZICHUYUTINGZHIZHUANGTAI。DIAOSHISHI,KEGENJUJUTIQINGKUANG,SHEDINGXUYAOJINXINGZHILIUZHIDONGDESHIJIANJIKE

(2) RUSUOXUANBIANPINDIAOSUQIMEIYOUQIDONGQIANDEZHILIUZHIDONGGONGNENG,ZE:1) YANZHANGQIDONGSHIJIAN;2) XUANZESXINGQIDONGFANGSHI。SHIGANGQIDONGSHIPINLVSHANGSHENGDESUDUJINLIANGDIYANHUAN


水泵停机时,因有水的阻力的原因,不存在惯性,制动时间可否设定得很短?

JIUBIANPINDIAOZHENGSUXITONGERYAN,ZAISHANGSHUQINGKUANGXIA,ZHIDONGSHIJIANSHEDINGDEDUANXIE,BUCUNZAIRENHEWENTI。DANDUIYUGONGSHUIDEGUANDAOXITONGLAISHUO,RUSHUIYABIANHUAGUOKUAI,HUIYINQI“SHUICHUIXIAOYING”DENGWENTI,GUZHIDONGSHIJIANBUYISHEDINGDETAIDUAN。


对于风机和泵类负载,U/f比(转矩补偿)选大了,有什么害处?

DANGYUNXINGPINLVDIYUEDINGPINLV(fx<fN)SHI,BIANPINDIAOSUQIDESHUCHUDIANYABIGUFENGJISHIJIMIANYAODEGAO,JIANGCHUXIAN“DAMALAXIAOCHE”DEXIANXIANG,LANGFEILEDIANNENG。


一开机,制动电阻就发热,是什么原因?

ZHIDONGDANYUAN(WAIJIEDEHUONEIZAIDE,YIJINGSUNHUAI,YINGLIJIGENGHUAN。YINWEIZAIZHENGCHANGQINGKUANGXIA,ZHIDONGHUILUZHIYOUZAIJIANGSUGUOCHENGZHONGCAIBEIJIETONG。ZAISHENGSUHEYUNXINGGUOCHENGZHONG,ZHIDONGDANYUANYINGCHUYUJIEZHIZHUANGTAI,ZHIDONGDIANZUSHIBUJIERUDIANLUDE,BUYINGGAIFARE。ZHIYOUDANGZHIDONGDANYUANVBYIJINGDUANLU(JICHUAN)SHI,ZHIDONGDIANZUCAIKENENGYIKAIJIJIUFARE。


由于起、制动较频繁,制动电阻发热严重,怎么办?

YOUYUJIANGSUGUOCHENGTONGCHANGDOUHENDUAN,SUOYI,ZHIDONGDIANZURBDEGONGLV(WASHU)SHIANDUANSHIYUNXINGSHEJIDE。TONGDIANSHIJIANZHANGLE,HUOTONGDIANBIJIAOPINFANDE,JIUHUICHUXIANFAREYANZHONGDEXIANXIANG。

CHULIFANGFA:ZAIBUGAIBIANRBDEZUZHIDEQIANTIXIA,ZENGDAR BDEGONGLV。ZHIYAORBDEZUZHIWEIBIAN,ZHIDONGDANYUANKEBUBIAN。ZHEISHIYINWEI:ZHIDONGSHIJIANXIANGDUIYUFAREGUOCHENGLAISHUO,SHISHIFENDUANZANDE,DANDUIYUJINGTIGUANLAISHUO,YIJINGSHIZUGOUZHANGDESHIJIANLE。SUOYIZAISHEJISHI,ZHIDONGDANYUANVBSHIAN“ZHANGQIYUNXING”XUANDINGDE。


下运皮带机常因过压的跳闸,怎么办?

广东11选5DANGPIDAIYUNSHUJIXIANGXIAYUNSONGZHONGWUSHI,YOUYUZHONGWUBENSHENJUYOUZHONGLIJIASUDU,DIANDONGJIDEZHUANSUJIANGCHAOGUOTONGBUZHUANSUERCHUYUZAISHENGZHUANGTAI。DANBIANPINDIAOSUXITONGYINBINGBUCHUYUJIANGSUZHUANGTAI,ZHIDONGHUILUBUJIETONG,ZAISHENGDEDIANNENGWUCHUSHIFANG,GUERHENRONGYIGUOYA。

JIEJUEDEFANGFAYOU:

广东11选5(1) XUANYONG“SIXIANGXIANBIANPINDIAOSUQI”,QITEDIANSHI:SANXIANGZHENGLIUYOUJINGZHAGUANZUCHENG。DANGZHILIUDIANYAGUOGAOSHI,SHIJINGZHAGUANCHUYUYOUYUANNIBIANZHUANGTAI,JIANGZHILIUDIANNENGNIBIANCHENGSANXIANGJIAOLIUDIANFANKUIJIDIANWANG。ZHEISHIYIZHONGSHIFENJINGJIDEFANGFA,DANSIXIANGXIANBIANPINQIJIAGEANGGUI,CHANGCHAOGUOPUTONGBIANPINQIJIAGEDEYIBEIYISHANG,ERSHIYONGHUQUEBU。

(2) ZAIPUTONGDEBIANPINDIAOSUQIZHONGZENGJIAZAISHENGNENGHAOHUILU,JIANGZAISHENGDIANNENGXIAOHAODIAO。ZHEIHEJIANGSUSHI,ZHIDONGDIANZUHEZHIDONGDANYUANDEGONGNENGWANQUANYIYANG。SUOBUTONGDESHI,TASHIZAIYUNXINGGUOCHENGZHONG,DANGZHILIUDIANYACHAOCHUYIDINGXIANZHISHIBEIJIETONG。


“再生能耗电路”如何构成?

ZHUYAOYOUSANGEBUFENGOUCHENG:

(1) NENGHAODIANZU:YONGYUXIAOHAODIAOZAISHENGDIANNENG。

(2) NENGHAODANYUAN:YONGYUJIETONGHEDUANKAINENGHAODIANLU。

广东11选5(3) DIANYACAIYANGDIANLU:YONGYUSHINENGHAOHUILUGENJUZHILIUDIANYADEGAODILAIJUEDINGHESHIJIETONGHUODUANKAI。


能不能快一点结束欠压故障状态,以便接触器再接通时,快一点投入工作?如果电网电压稳定,能否撤消欠电压保护?

广东11选5CONGYUANLISHANGJIANGSHIKENENGDE,ZHIXUYAOANYIXIA“FUWEI(RESET)”ANNIUJIKE。DANZAISHIJIGONGZUOZHONGCHANGCHANGSHIXINGBUTONGDE。YINWEITINGDIANSHI,DIANDONGJIJIANGCHUYUZIYOUZHIDONGZHUANGTAI。ERFUWEIHOU,BIANPINQIDESHUCHUPINLVSHICONG0HzKAISHIDE。ZHEISHI,DIANDONGJIDESHIJIZHUANSUJIANGDADAGAOYUTONGBUZHUANSU,ERCHUYUQIANGLIEDEZAISHENGZHUANGTAI,HENRONGYIYINQIGUOLIUHUOGUOYAERTIAOZHA。GEBIEQINGKUANGXIA,RUTINGDIANSHI,DIANDONGJINENGLIJITINGZHUDE,ZEKEYI。

广东11选5ZAIBENDANWEIDIANWANGDIANYABIJIAOWENDINGQINGKUANGXIAYEBUKECHEXIAOQIANDIANYABAOHU。YINWEIQIANYABAOHUBUJINJINSHIBAOHUDIANWANGDIANYADEBUZU,GENGZHONGYAODESHIJINXINGTINGDIANBAOHU。YUANYINRUXIA:

(1) NIBIANYONGDEGONGLVMOKUAI,ZHIYUNXUGONGZUOZAIBAOHEDAOTONGHEJIEZHILIANGZHONGZHUANGTAI。ZAIZHEILIANGZHONGZHUANGTAIXIA,QIGONGLVSHIHENXIAODE。LIRU,BAOHEDAOTONGSHIDEDIANLIUWEI100A ,MOKUAIDEBAOHEYAJIANGWEI2V,ZEGONGHAOWEI:PO=100×2=200W,JIEZHISHIDEGONGHAOZEGENGXIAO。

广东11选5RUGUOMOKUAIGONGZUOZAIFANGDAZHUANGTAI,JIASHEQIGUANYAJIANGWEI100V,GONGZUODIANLIURENGWEI 100A ,ZEQIGONGHAOWEI:Po'=100×100=10000W=10kW,ZHEIJIANGYUANYUANCHAOGUOMOKUAIDEEDINGGONGLV,ERSHIMOKUAIXUNSUSUNHUAI。

广东11选5SUOYI,NIBIANYONGDEGONGLVMOKUAISHIJUEDUIBUYUNXUZAIFANGDAQUSHAOYOUTINGLIUDE。

(2) BIANPINQIZAITURANTINGDIANSHI,YOUYUGEBUFENDOUYOURONGLIANGHENDADECHUNENGYUANJIAN(DIANJIEDIANRONGQI),QIGONGZUOBINGBUNENGLIJITINGZHI。ERZAIGEBUFENZHONG:

1) KONGZHIXITONGDECHUNENGRONGLIANGZUIDA,SHUCHUZUKANGYEZUIDA,GUSHUAIJIANZUIMAN。TINGDIANHOU,NENGWEICHIGONGZUODESHIJIANYEZUIZHANG。

广东11选52) ZHUHUILUDEGAOYADIANRONGDERONGLIANGYEHENDA,QIEYINDIANYAHENGAO(500~600V),YAOSHUAIJIANZUIKUAI。ERQUDONGDIANLIUDESHUAIJIANJIANGDAOZHIGONGLVMOKUAIJINRUFANGDAZHUANGTAIERSUNHUAI。

广东11选53) QUDONGDIANLUDECHUNENGRONGLIANGYAOXIAODEDUO,QIEQISHUCHUZUKANGYEXIAO,SUOYISHUAIJIANZUIKUAI。ERQUDONGDIANLIUDESHUAIJIANJIANGDAOZHIGONGLVMOKUAIJINRUFANGDAZHUANGTAIERSUNHUAI。

YINCI,QIANYABAOHUDEDIYIGEFANYINGJIUSHISHOUXIANJIANGNIBIANGUANDEGONGZUOXUNSUFENGSUO。

SUOYI,QIANYABAOHUSHIJUEDUIBUYUNXUCHEXIAODE!


变频器具有重合闸功能,但当进线处的接触器断开后,立即再接通时,却出现“欠压”显示,需等直流电路放电完毕后才能重新工作,是什么原因?

(1) SHUNSHITINGDIANHOUDEZHONGHEZHA,YUNXUTINGDIANDESHIJIANZHIYOUSHUMIAOZHONG,SHOUKONGJIECHUQISHI,CHUDIANDUANKAIYUZAIJIETONGZHIJIANDEJIANGE,HENRONGYICHAOGUOGUIDINGDESHIJIAN,ZHONGHEZHAGONGNENGYIJINGSHIXIAO。

(2) ZHONGHEZHAGONGNENGSHIXUYAOYUZHIDE,RUSHIXIANWEICENGYUZHI,ZEJISHIJIECHUQICHUDIANDEDUANKAIYUJIETONGZHIJIANDESHIJIANJIANGEDEQUEHENDUAN,YEBUNENGZHONGHEZHA。ZHEISHIYINWEI:RUWEICENGYUZHIDEHUA,ZEYIDANDUANDIAN,QIQIANYABAOHUGONGNENGJIANGXUNSUJIESHUKONGZHIXITONGDESUOYOUGONGZUO,BINGXIANSHI“QIANYA”XINHAO;RUGUOSHIXIANYUZHILEDEHUA,ZEDUANDIANSHI,QIANYAXINHAOJIANGZHIFENGSUONIBIANGUANDEGONGZUO,KONGZHIXITONGDEQITAGONGZUOZEBINGBUZHONGDUAN,DIANYUANHUIFUSHI,KEYIJIXUGONGZUO。

变频器厂

变频器厂


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