User's Manual
Table Of Contents
- Table of Contents
- General Aspects
- About This Manual
- Features of Fluke 434-II/435-II/437-II
- Basic Operations and Menu Navigation
- Display Information
- Input Connections
- Scope Waveform and Phasor
- Volts/Amps/Hertz
- Dips & Swells
- Harmonics
- Power & Energy
- Energy Loss Calculator
- Power Inverter Efficiency
- Unbalance
- Inrush
- Monitor - Power Quality Monitoring
- Flicker
- Transients
- Power Wave
- Mains Signaling
- Logger
- Shipboard V/A/Hz
- Cursor and Zoom
- Setting up the Analyzer
- Using Memory and PC
- Tips and Maintenance
- Specifications
- Appendices
- Index
14-1
Chapter 14
Unbalance
Introduction
Unbalance displays phase relations between voltages and currents. Measuring results are
based upon the fundamental frequency component (60 Hz, 50 Hz, or 400 Hz in Fluke
437-II) 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, Events tables, and a Phasor display.
Phasor screen
To access the Unbalance Phasor screen:
c
MENU
d
e
ENTER