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[Q&A]MTZ框架断路器的电流整定范围是多少?
问题描述:
MTZ框架断路器的电流整定范围是多少?

所属产品线:
Masterpact MTZ空气断路器

解决方法:

MTZ框架断路器的电流整定范围如下所示:

MIC2.0B:长延时电流整定Ir=In x...( 0.4 0.5 0.6 0.7 0.8 0.9 0.95 0.98 1.0)

瞬时整定值Isd = Ir x …(1.5 2 2.5 3 4 5 6 8 10)

MIC2.0X:长延时电流整定Ir=0.4In~In,整定步长1A

瞬时整定值Isd=1.5~10Ir, 整定步长0.5倍Ir

MIC5.0B:长延时电流整定Ir=In x...( 0.4 0.5 0.6 0.7 0.8 0.9 0.95 0.98 1.0)

短延时整定值Isd = Ir x …(1.5 2 2.5 3 4 5 6 8 10) (5.0B/6.0B设置一致)

瞬时整定值Ii = In x …(2 3 4 6 8 10 12 15 OFF)   (5.0B/6.0B设置一致)

MIC5.0X:长延时电流整定Ir=0.4In~In,整定步长1A

短延时整定值Isd=1.5~10Ir, 整定步长0.5倍Ir(5.0X/6.0X/7.0X设置一致)

瞬时整定值Ii=2In~15In,整定步长0.5In和关闭 (5.0X/6.0X/7.0X设置一致)

MIC6.0B: 接地故障整定值(A)Ig = In x …

Ig = In x A B C D E F G H J
In ≤ 400A 0.3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
400 < In < 1250A 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
In ≤ 1250A 500 640 720 800 880 960 1040 1120 120

MIC6.0X:Ig=0.2 In~In,整定步长0.1In和关闭(当In≤400A时,为0.3In~In)

MIC7.0X:灵敏度 (A) IΔn= 0.5A~30A,整定步长0.1A

使用Ecoreach软件和Masterpact MTZ移动应用可以对Ir/Isd/Ig(MIC X)进行更精细的步长整定。



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