Fluke 39, 41B user manual Three-Phase Power Measurements

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Three-Phase Power Measurements

Three-Phase Power Measurements

Refer to Figures 5, 6, and 7 for various ways to measure total power in a three-phase system. The W 3P3C display screen shows the three-phase calculation for the connection shown in Figure 5. All other screens and functions show only single-phase data.

Load

φ1

φ2

Red

Black

W1

φ3

a74f.eps

Figure 5. Three-Phase Measurement Connections (For Balanced Circuits,

3P, 3-Conductor, D)

11

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Contents Fluke 39/41B Limited Warranty & Limitation of Liability Service Centers Page Table of Contents Fluke 39/41B List of Tables List of Figures Using!Your Tester Safely AC Current Probe Safety Guidelines Uses for the Tester About This ManualUnpacking Unpacking Additional Items Model 41B Terminology Used in This Manual Battery Considerations Automatic Power DownMemory Retention Gettingto Acquainted with Your Tester Getting Acquainted Input Connections Using the Voltage Test LeadsMeasurement Connections 1P Using the Current ProbeThree-Phase Measurement Connections For Balanced Circuits Three-Phase Power MeasurementsWtotal = W1 + W2 Three-Phase Measurement, Balanced or UnbalancedWtotal = W1 + W2 + W3 Keypad KeypadKeypad Number Key Descriptions Symbol Name & DescriptionNumber Symbol Name & Description Key Descriptions Number Name & Description Print Model 41B Key Descriptions Number Symbol Name & DescriptionDisplay Screen Display ScreenStatus Line DP ase Angle degrees. ± Screen Abbreviations Screen Usage Name and DescriptionScreen Usage Name and Description Screen AbbreviationsVolts rms includes dc component Special Messages Functions and Screen Modes Waveform Screen ModeWaveform Screens Functions and Screen Modes Harmonics Screens Harmonics Overload Screen Harmonics Zoom Screen Harmonics Zoom ModeText Screen Mode Text Screens VA Check Screen Typical VA Check Signatures Recording Measurements Record Screens THD RMS Power-Up ConfigurationConfiguration Screens Memory Screen Storing & Recalling Measurements Model 41B39/41B Store Using the Serial Cable Model 41B Serial Communications Model 41B Using PC Software with the Tester Model 41B Printing Model 41BSending to a Printer or PC Model 41B Applications Applications Plant Switch Gear Plant Switch Gear Service EntranceDistribution Transformer 1PWatts Text Screen Distribution TransformerDistribution Transformer 3P, 3C Watts Text Screen Electronic Equipment Load CenterReceptacle Load Center Neutral Current Measurement Generator Set Generator SetAdjustable Frequency Motor Drive Adjustable Frequency Speed Motor DriveCleaning User MaintenanceFuse Replacement Battery ReplacementUser Maintenance If Your Tester Does Not Work Accessories and Replacement Parts Accessories and Replacement PartsReplacement Parts Description Fluke PNQty MV/A Isolated Input SpecificationsWatts Measurements Volt-Amps Harmonic Level 5% Using Smooth ~20Range/Resolution Measurement FunctionAccuracy AC Volts AC AmpsWatts General Specifications Display Safety 39/41B