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西門子直流電器6RA80勵磁電流大維修，故(gu)障維修處理;電(dian)(dian)(dian)(dian)力系統(tong)(tong)(tong)高(gao)次諧(xie)波(bo)的(de)(de)影響 目(mu)前,由于(yu)電(dian)(dian)(dian)(dian)力系統(tong)(tong)(tong)中應用(yong)的(de)(de)大量(liang)非線性(xing)負載(例如,電(dian)(dian)(dian)(dian)弧爐、高(gao)壓燈具(ju)、整流器(qi)(qi)等) 的(de)(de)存(cun)在(zai),使供電(dian)(dian)(dian)(dian)系統(tong)(tong)(tong)中存(cun)在(zai)著大量(liang)高(gao)次諧(xie)波(bo)和(he)(he)(he)閃變(bian)電(dian)(dian)(dian)(dian)壓。這些高(gao)次諧(xie)波(bo)和(he)(he)(he)閃變(bian)電(dian)(dian)(dian)(dian)壓,對(dui)變(bian) 頻(pin)(pin)(pin)(pin)器(qi)(qi)的(de)(de)正常(chang)工作產生(sheng)了較大的(de)(de)影響 (2)變(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)高(gao)次諧(xie)波(bo)的(de)(de)影響 另一(yi)(yi)方面(mian),變(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)本(ben)身在(zai)工作過程(cheng)中,也會產生(sheng)一(yi)(yi)定的(de)(de)高(gao)次諧(xie)波(bo),該高(gao)次諧(xie)波(bo)竄入電(dian)(dian)(dian)(dian) 網以(yi)后,對(dui)電(dian)(dian)(dian)(dian)網系統(tong)(tong)(tong)其(qi)他設備(bei)也會產生(sheng)嚴(yan)重的(de)(de)影響。轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率控(kong)(kong)(kong)制(zhi)(zhi)轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率是施加于(yu)電(dian)(dian)(dian)(dian)動機(ji)(ji)的(de)(de)交流電(dian)(dian)(dian)(dian)源頻(pin)(pin)(pin)(pin)率與電(dian)(dian)(dian)(dian)動機(ji)(ji)速(su)度的(de)(de)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率，根據異(yi)(yi)步(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)穩定數學模型可知，當(dang)頻(pin)(pin)(pin)(pin)率一(yi)(yi)定時，異(yi)(yi)步(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)磁轉(zhuan)(zhuan)矩正比于(yu)轉(zhuan)(zhuan)差(cha)(cha)(cha)率，機(ji)(ji)械特性(xing)為(wei)直線，轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率控(kong)(kong)(kong)制(zhi)(zhi)就是通過控(kong)(kong)(kong)制(zhi)(zhi)轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率來控(kong)(kong)(kong)制(zhi)(zhi)轉(zhuan)(zhuan)矩和(he)(he)(he)電(dian)(dian)(dian)(dian)流，轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率控(kong)(kong)(kong)制(zhi)(zhi)需(xu)要(yao)檢出電(dian)(dian)(dian)(dian)動機(ji)(ji)的(de)(de)轉(zhuan)(zhuan)速(su)，構成速(su)度閉(bi)環(huan)，速(su)度調節(jie)器(qi)(qi)的(de)(de)輸出為(wei)轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率，然后以(yi)電(dian)(dian)(dian)(dian)動機(ji)(ji)速(su)度與轉(zhuan)(zhuan)差(cha)(cha)(cha)頻(pin)(pin)(pin)(pin)率之和(he)(he)(he)作為(wei)變(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)的(de)(de)給定頻(pin)(pin)(pin)(pin)率，與U/f控(kong)(kong)(kong)制(zhi)(zhi)相(xiang)比，其(qi)加減速(su)特性(xing)和(he)(he)(he)限制(zhi)(zhi)過電(dian)(dian)(dian)(dian)流的(de)(de)能力得到提高(gao)，另外，它有(you)速(su)度調節(jie)器(qi)(qi)，利(li)用(yong)速(su)度反饋構成閉(bi)環(huan)控(kong)(kong)(kong)制(zhi)(zhi).

西門(men)子6RA80直(zhi)流電氣常見故障(zhang)：電源板(ban)壞(huai)(huai)(huai)，晶閘管壞(huai)(huai)(huai)，觸(chu)發(fa)板(ban)壞(huai)(huai)(huai)，主板(ban)壞(huai)(huai)(huai)，欠(qian)壓(ya)故障(zhang)，缺相，弱(ruo)磁(ci)不了，勵磁(ci)故障(zhang)，速度不穩(wen)，勵磁(ci)板(ban)燒(shao)，不出力(li)，不能反轉，炸機，板(ban)子燒(shao)，輸出電壓(ya)低，燒(shao)可(ke)控硅(gui)，無勵磁(ci)電壓(ya)，燒(shao)保險，無顯示(shi)， 跳閘，F60005 F60004 F60006 ，F60038，F60050，F60051，F60061，F60090，F60091，F60100，F60101，F60104，F60105，F60094，F60095等等報(bao)警。

6RA8075-6DS22-0AA0
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6RA8075-6GV62-0AA0
6RA8078-6DS22-0AA0
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6RA8088-6LS22-0AA0
6RA8088-6LV62-0AA0
6RA8090-6GS22-0AA0
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