Power and Voltage Quality Trainer
AD 2
– MI 3399
123
TABLE OF CONTENTS
1
Preface ............................................................................................................ 127
2
Basic theory ..................................................................................................... 128
2.1
Power quality events ........................................................................................ 128
2.2
Rapid voltage changes ..................................................................................... 128
2.3
Supply voltage dips .......................................................................................... 128
2.4
Supply voltage swells ....................................................................................... 129
2.5
Voltage interruptions ........................................................................................ 130
2.6
Power measurement ......................................................................................... 131
2.7
Energy measurement ........................................................................................ 132
2.8
Harmonics ......................................................................................................... 132
2.8.1
Interharmonics ............................................................................................................................ 133
2.8.2
Total Harmonic Distortion (THD) ................................................................................................. 133
2.9
Supply voltage unbalance ................................................................................ 133
2.10
Flicker ................................................................................................................ 133
2.11
Inrush ................................................................................................................. 134
2.12
Transient overvoltages ..................................................................................... 134
3
Connection and setup ...................................................................................... 135
3.1
Electrical system configuration ....................................................................... 135
3.2
Instrument Setup .............................................................................................. 136
3.3
Instrument’s status bar .................................................................................... 139
3.4
Deleting the contents of the memory list ........................................................ 140
3.5
PowerView installation and setup .................................................................... 140
4
Exercises ......................................................................................................... 143
4.1
Exercise 1
– Basic general manipulation and recording:............................... 143
4.1.1
Real time measurements ............................................................................................................ 144
4.1.2
Recording measurements ........................................................................................................... 144
4.1.3
Downloading and observing recorded data in PowerView ......................................................... 146
4.2
Exercise 2
– Voltage Dip ................................................................................... 148
4.2.1
Instrument setup for Dip capturing ............................................................................................. 149
4.2.2
Observing dips on the instrument ............................................................................................... 150
4.2.3
Downloading and observing recorded data in PowerView ......................................................... 151
4.3
Exercise 3
– Voltage Swell ............................................................................... 156
4.3.1
Instrument setup for Swell capturing.......................................................................................... 156
4.3.2
Observing swells on the instrument............................................................................................ 158
4.3.3
Downloading and observing recorded data in PowerView ......................................................... 159
4.4
Exercise 4
– Voltage Interrupts ........................................................................ 163
4.4.1
Instrument setup for Interrupt capturing ................................................................................... 163
4.4.2
Observing interrupts on the instrument ..................................................................................... 165
4.4.3
Downloading and observing recorded data in PowerView ......................................................... 166
4.5
Exercise 5
– Power and Energy measurement ............................................... 170
4.5.1
Recording energy ........................................................................................................................ 171
4.5.2
Real time Power measurements ................................................................................................. 173
Summary of Contents for MI 3399
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