中国台湾北部精机SWH-G02-C4-A220-10电磁阀,SWH-G02-C2-A220-10,SWH-G02-C4-A220-10,SWH-G02-C3-A220-10,SWH-G02-C6-A220-10,SWH-G02-B2-A220-10,SWH-G02-B3-A220-10,SWH-G02-D2-A220-10,SWH-G02-D3-A220-10,SWH-G03-C2-A220-10,SWH-G03-C4-A220-10,SWH-G03-C3-A220-10,SWH-G03-C6-A220-10,SWH-G03-B2-A220-10,SWH-G03-B3-A220-10,SWH-G03-D2-A220-10,SWH-G03-D3-A220-10,SWH-G02-C2-A110-10,SWH-G02-C4-A110-10,解: 当α=30°时 负载类型 负载电流的平均值为 IL=UL/RL=175/5=35A 流过晶闸管的平均电流为
影响 流过续流二极管的平均电流为 影响 二、反电动势负载的影响 图6a所示是反电动势负载单相半控桥式整流电路。浅谈负载类型对晶闸管整流的影响 图6反电动势负载对晶闸管整流的影响 a)电路图 b)波形图 只有当交流侧电压u2大于反电动势E时,晶闸管承受正向电压,才能被触发导通。晶闸管导通时,uL=u2。当u2=E时,晶闸管关断,uL=E。SWH-G02-C3-A110-10,SWH-G02-C6-A110-10,SWH-G02-B2-A110-10,SWH-G02-B3-A110-10,SWH-G02-D2-A110-10,SWH-G02-D3-A110-10,SWH-G03-C2-A110-10,SWH-G03-C4-A110-10,SWH-G03-C3-A110-10,SWH-G03-C6-A110-10,SWH-G03-B2-A110-10,SWH-G03-B3-A110-10,SWH-G03-D2-A110-10,SWH-G03-D3-A110-10,中国台湾北部精机SWH-G02-C4-A220-10电磁阀,
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: 【苏州瑶佐机电有限公司】
业务 【:黄俊杰 】
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中国台湾北部精机SWH-G02-C4-A220-10电磁阀,SWH-G02-C2-D24-10,SWH-G02-C4-D24-10,SWH-G02-C3-D24-10,SWH-G02-C6-D24-10,SWH-G02-B2-D24-10,SWH-G02-B3-D24-10,SWH-G02-D2-D24-10,SWH-G02-D3-D24-10,SWH-G03-C2-D24-10,SWH-G03-C4-D24-10,SWH-G03-C3-D24-10,SWH-G03-C6-D24-10,SWH-G03-B2-D24-10,SWH-G03-B3-D24-10,SWH-G03-D2-D24-10,SWH-G03-D3-D24-10,SWH-G02-C2-A220-20,SWH-G02-C4-A220-20,SWH-G02-C3-A220-20,输出电压、电流波形如图6b所示。 从图中可看出,反电动势负载使晶闸管的导通角θ变小,且反电动势越大,导通角θ越小,电流波形的底部就越窄,脉动就越大,如要输出一定的平均电流,其波形幅值必然很大。这种电流对直流电动机负载来说,在换相时容易产生火花。 在实际应用中,常在负载回路中串联一个平波电抗器,以减小电流的脉动和延长晶闸管的导通时间。为了防止在电路中产生失控现象,还要并联续流二极管,使它的工作情况类似于大电感负载。 三、结语 通过分析,负载类型对晶闸管整流有较大影响,必须采取相应措施,以防止晶闸管的损坏,保证负载的可靠运行SWH-G02-C6-A220-20,SWH-G02-B2-A220-20,SWH-G02-B3-A220-20,SWH-G03-B2-A110-20,SWH-G03-B3-A110-20,SWH-G03-D2-A110-20,SWH-G03-D3-A110-20,SWH-G02-C2-D24-20,SWH-G02-C4-D24-20,SWH-G02-C3-D24-20,SWH-G02-C6-D24-20,SWH-G02-B2-D24-20,SWH-G02-B3-D24-20,SWH-G02-D2-D24-20,SWH-G02-D3-D24-20,SWH-G03-C2-D24-20,SWH-G03-C4-D24-20,SWH-G03-C3-D24-20,SWH-G03-C6-D24-20,SWH-G03-B2-D24-20,SWH-G03-B3-D24-20,SWH-G03-D2-D24-20,SWH-G03-D3-D24-20,,中国台湾北部精机SWH-G02-C4-A220-10电磁阀