DSDX452 ABB

ABB APOW-01C
ABB SDCS-IOB-23-COAT
ABB PFVI 401
ABB partcode 3BDZ000398R1 technical RLM01
ABB IGBT module/IGBT FS225R12KE3/AGDR-71C
ABB Template/AINT-12C CODE:64715810A/ABB

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Description

所选定的断路器还应按短路电流进行灵敏系数校验。灵敏系数即线路中最小短路电流(一般取电动机接线端或配电线路末端的两相或单相短路电流)和断路器瞬时或延时脱扣器整定电流之比。两相短路时的灵敏系数应不小于2,单相短路时的灵敏系数对于DZ型断路器可取1.5,对于其他型断路器可取2。

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