Fluke 435 用户手册

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页码 140
  
13-1 
Chapter 13 
Unbalance 
Introduction 
Unbalance displays phase relations between voltages and currents. Measuring results are 
based upon the fundamental frequency component (60 or 50 Hz using method of 
symmetrical components). In a 3-phase power system, the phase shift between voltages 
and between currents should be close to 120
°. Unbalance mode offers a Meter screen, a 
related Trend display, and a Phasor display. 
Meter screen 
To access the Unbalance Meter screen: 
c
 
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