Measurement-computing WavePort 312P rev.1.0 Uživatelský manuál

© 1998 by IOtech, Inc. December 1999Printed in the United States of AmericaWavePort/312P* User’s ManualP

1-4 Introduction and Hardware Setup PowerVista/312 User’s Manual1.1.3 Frequently Asked QuestionsCan I Operate PowerVista/312 with the Unit Close

PowerVista/312 User’s Manual Introduction and Hardware Setup 1-51.1.4 Mounting the LaptopFigure 1-3. Attaching a Laptop to the Cover PlateIt is

1-6 Introduction and Hardware Setup PowerVista/312 User’s Manual1.1.5 Connecting the PCThis section involves connecting your laptop to the acqui

PowerVista/312 User’s Manual Install Software and Change PC Settings 2-12 Install Software and Change PC Settings2.1 Introduction to EasyPower M

2-2 Install Software and Change PC Settings PowerVista/312 User’s ManualFigure 2-1. The Control Panel Power Management ICON.Once activated, go th

PowerVista/312 User’s Manual Install Software and Change PC Settings 2-3Figure 2-6. Default Screen Saver and Energy Management in Win95.2.6 Disable

2-4 Install Software and Change PC Settings PowerVista/312 User’s ManualFigure 2-4. Virtual Memory Management.2.7 Disable Additional Process Tim

PowerVista/312 User’s Manual Software Framework 3-13 Software Framework3.1 OverviewEasyPower Measure is a Windows multiple document interface

3-2 Software Framework PowerVista/312 User’s Manual3.2 File AccessFile access for EasyPower Measure follows standard Windows convention for a mult

PowerVista/312 User’s Manual Software Framework 3-33.2.4 File CloseFile Close terminates the presently selected Acquisition Widow. This is simil

3-4 Software Framework PowerVista/312 User’s ManualTable 3. Supplied User Configuration Files.Configuration File Comment120VdemY.cfg 120 V, Wye c

PowerVista/312 User’s Manual Software Framework 3-53.4.1 Print Print either a result summary or a single result window to the output device sele

3-6 Software Framework PowerVista/312 User’s Manual3.5.2 Paste Shots The Paste Shots command accesses the list of shots to copy stored in memory

PowerVista/312 User’s Manual Software Framework 3-73.7 ToolsSeveral tools have been supplied to make accessing results simple and convenient. Wit

3-8 Software Framework PowerVista/312 User’s Manual3.7.3 Cycle Graph Backward Cycle Graph Backward causes the graphical and tabulated text resul

PowerVista/312 User’s Manual Software Framework 3-9Table 5. Shot Four Letter Pneumonics for Database View.Shot Type Shot Type PneumonicPhasor Dia

3-10 Software Framework PowerVista/312 User’s Manual3.8.2 CascadeCascade will auto-arrange all Acquisition Windows in a folder arrangement where

PowerVista/312 User’s Manual Software Framework 3-11Figure 3-5. Acquisition Windows Tiled Vertically.3.8.5 Arrange IconsIf any of the Applicatio

3-12 Software Framework PowerVista/312 User’s Manual3.9.1 Main ToolbarAs of Version 1.0, the Main Toolbar incorporates the following direct acces

PowerVista/312 User’s Manual Software Framework 3-13Each of the toolbar buttons can also be set in the Configuration / System dialog.See the Phasi

PowerVista/312 User’s ManualiWarrantyPowerVista/312’s warranty is as stated on the enclosed warranty card. No other warranty is expressed orimplied.

3-14 Software Framework PowerVista/312 User’s Manual⇒ Event/Demand Capture FIFO Overruns: should not be allowed. As noted above in Cycle-by-Cyc

PowerVista/312 User’s Manual Software Framework 3-15• Left Click and Drag of Mouse Over Shot List: selects and highlights a list of shots from th

3-16 Software Framework PowerVista/312 User’s Manual3.11 Graphical Result Window FeaturesGraphical results presented in the graphical Result Wind

PowerVista/312 User’s Manual Software Framework 3-17• Autoscale: Via the Plot Context Menu, Autoscale toggles on and off the autoscaling feature

3-18 Software Framework PowerVista/312 User’s ManualNote: The Input Level Meter is displayed and hidden by successive clicks on its toolbar button

PowerVista/312 User’s Manual Device Configuration 4-14 Device Configuration4.1 Signal ConnectionsWARNING !ELECTRIC SHOCK HAZARD! Use proper el

4-2 Device Configuration PowerVista/312 User’s ManualPower system measurements always begin with a connection of external voltages to hardware inp

PowerVista/312 User’s Manual Device Configuration 4-34.1.2 Connection ProcedureIt is recommended that the following connection procedure always be

4-4 Device Configuration PowerVista/312 User’s Manual4.1.3 Three Phase Grounded WyeSystem Configuration PT Connection: WyeTo accurately measure a

PowerVista/312 User’s Manual Device Configuration 4-54.1.4 Three Phase UnGrounded WyeSystem Configuration PT Connection: Wye or DeltaThe three pha

iiPowerVista/312 User’s ManualTable of Contents1 Introduction and Hardware Setup1.1 What is PowerVista/312 ……1-11.1.1 What Makes Up the Hardware ……1

4-6 Device Configuration PowerVista/312 User’s Manual4.1.5 Three Phase DeltaSystem Configuration PT Connection: DeltaA three phase Delta connecti

PowerVista/312 User’s Manual Device Configuration 4-74.1.6 Three Phase Open Delta SystemSystem Configuration PT Connection: Open DeltaA three phas

4-8 Device Configuration PowerVista/312 User’s Manual4.1.8 120/240V ServiceSystem Configuration PT Connection: WyeA 120/240V Service connection a

PowerVista/312 User’s Manual Device Configuration 4-9Items in the System Configuration Dialog include:• Voltage Range (V1,2,3): is the voltage in

4-10 Device Configuration PowerVista/312 User’s Manual• V4 Voltage Range: is the voltage input range for channel V4. This setting allows the us

PowerVista/312 User’s Manual Device Configuration 4-11Items in the Site Information Dialog include:• Site: is a 60 character text string that may

4-12 Device Configuration PowerVista/312 User’s Manual4.5 CommunicationCommunication settings define which hardware device EasyPower Measure is ac

PowerVista/312 User’s Manual Device Configuration 4-13Figure 4-13. Calibration Configuration Dialog.Items in the Calibration Configuration Dialog

4-14 Device Configuration PowerVista/312 User’s Manual Modifications to power calculations are performed as follows:⇒ Fundamental Phasor Power:

PowerVista/312 User’s Manual Phaser Diagram 5-15 Phasor Diagram5.1 Phasor Diagram Overview The Phasor Diagram is a full featured measurement

PowerVista/312 User’s Manualiii6 Detailed Harmonics6.1 Detailed Harmonics Overview ….. 6-16.2 Detailed Harmonics Configuration……6-16.3 Detailed

5-2 Phaser Diagram PowerVista/312 User’s Manual• Harmonics View: determines which tabulation will be displayed in the Phasor Harmonics Window.•

PowerVista/312 User’s Manual Phaser Diagram 5-3Figure 5-2. 0.95 pf Lagging Wye Connection. Figure 5-3. 0.95 pf Lagging DeltaConnection.Figure

5-4 Phaser Diagram PowerVista/312 User’s Manual5.3.2 Total vs. Displacement Power FactorThe Phasor Demand Window displays all fundamental phasor

PowerVista/312 User’s Manual Phaser Diagram 5-55.3.4 Demand TabulationThe Demand Tabulation Window is labeled to be self-descriptive. Several

5-6 Phaser Diagram PowerVista/312 User’s ManualNotes:

PowerVista/312 User’s Manual Detailed Harmonics 6-16 Detailed Harmonics6.1 Detailed Harmonics Overview Detailed Harmonics captures 10 cycles o

6-2 Detailed Harmonics PowerVista/312 User’s ManualFigure 6-1. Detailed Harmonics Configuration Dialog.Items in the Detailed Harmonics Configura

PowerVista/312 User’s Manual Detailed Harmonics 6-3⇒ Continuous Refresh: In this mode, as quick as a capture is processed and displayed, another

6-4 Detailed Harmonics PowerVista/312 User’s Manual6.3.3 Maximized SpectraThe maximizing feature of Detailed Harmonics is clearly useful when mea

PowerVista/312 User’s Manual Detailed Harmonics 6-56.3.5 Harmonics TabulationThe harmonics result tabulation in the Harmonics Table supplies both

ivPowerVista/312 User’s Manual

6-6 Detailed Harmonics PowerVista/312 User’s ManualNotes:

PowerVista/312 User’s Manual Spectrum Analyzer 7-17 Spectrum Analyzer7.1 Spectrum Analyzer Overview The Spectrum Analyzer performs spectral deco

7-2 Spectrum Analyzer PowerVista/312 User’s Manual• Input Channel: is the actual input channel (V1, V2, … I3, E1) to the hardware. This routine

PowerVista/312 User’s Manual Spectrum Analyzer 7-3V. We could include more frequencies left and right of the signal, but in real life those frequ

7-4 Spectrum Analyzer PowerVista/312 User’s ManualChannel V1 SpectrumFrequency (Hz) Volts 73.242 1623.5 383.3 693.4 1003.4 1313.5 0.00

PowerVista/312 User’s Manual Cycle-by-Cycle Capture 8-18 Cycle-by-Cycle Capture8.1 Cycle-by-Cycle Overview Cycle-by-Cycle Capture utilizes th

8-2 Cycle-by-Cycle Capture PowerVista/312 User’s Manual• Update Rate: is the rate at which the Cycle-by-Cycle graphic windows are updated. Note

PowerVista/312 User’s Manual Cycle-by-Cycle Capture 8-3This method of display however can be confusing in terms of what data has actually been col

8-4 Cycle-by-Cycle Capture PowerVista/312 User’s ManualFor arc furnace applications, poor SVC response can manifest itself through increased flick

PowerVista/312 User’s Manual Event Capture 9-19 Event Capture9.1 Event Capture Overview Event Capture continuously monitors all hardware channel

PowerVista/312 User’s Manual Introduction and Hardware Setup 1-11 Introduction and Hardware Setup1.1 What is PowerVista/312 ?PowerVista/312 is

9-2 Event Capture PowerVista/312 User’s ManualFigure 9-1. Event Capture Configuration Dialog.Items in the Cycle-by-Cycle Configuration include:•

PowerVista/312 User’s Manual Event Capture 9-3• THD Trigger: is an event trigger that is compared against the voltage and current THD in percent

9-4 Event Capture PowerVista/312 User’s Manual• Monitored Harmonics: are the four user defined harmonics (from 1 to 50) that will be logged at t

PowerVista/312 User’s Manual Event Capture 9-5location of events at the bottom of the plot. When the cursor moves over a marker location, the cur

9-6 Event Capture PowerVista/312 User’s Manual9.3.3 Demand Log Data RecoveryIf the PC crashes from within Win95, or if there is a loss of power s

PowerVista/312 User’s Manual Frequency Following 10-110 Frequency Following10.1 Frequency Following OverviewFrequency Following is an EasyPowe

10-2 Frequency Following PowerVista/312 User’s Manual10.2.1 Frequency Following Process TimeFrequency Following is an additional algorithm, and

PowerVista User’s Manual Glossary 11-1GlossaryCBEMA CurveA set of curves developed by the Computer Business Equipment Manufacturers Association (C

Glossary11-2 Glossary PowerVista/312 User’s ManualFourier TransformThe continuous Form of the Fourier Series is shown below in equation form.

GlossaryPowerVista User’s Manual Glossary 11-3K-FactorA component of the ANSI Standard C57.110-1986 transformer derating equation, and more common

1-2 Introduction and Hardware Setup PowerVista/312 User’s Manual1.1.2 What Is EasyPower Measure ?EasyPower Measure is a single software applic

Glossary11-4 Glossary PowerVista/312 User’s ManualResonanceA condition where elements of a circuit match impedance to form a total high impedance

GlossaryPowerVista User’s Manual Glossary 11-5Total Harmonic Distortion (THD)The total "root sum square" harmonic distortion in percent

Glossary11-6 Glossary PowerVista/312 User’s ManualWatts and VarsFundamental Watts and Vars are defined from pre-calculated voltage and current vec

PowerVista/312 User’s Manual Introduction and Hardware Setup 1-3Figure 1-2. PowerVista/312, Hardware Identification