Fluke 435 user manual Inrush Trend Display

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	MENU
d

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