Fluke 435 用户手册

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页码 140
  
15-1 
Chapter 15 
Inrush 
Introduction 
Inrush Currents can be captured by Fluke 434/435. Inrush Currents are surge currents that 
occur when a large, or low-impedance load comes on line. Normally the current will 
stabilize after some time when the load has reached normal working condition. For 
example the start-up current in induction motors can be ten times the normal working 
current. Inrush is a ‘single shot’ mode that records current and voltage Trends after a 
current event (the trigger) has occurred. An event occurs when the current waveform 
exceeds adjustable limits. The display builds up from the right of the screen. Pretrigger 
information allows you to see what occurred in advance of the inrush. 
Inrush Trend Display 
To access the Inrush Trend screen: 
c
 
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