Page 241 - Power Quality in Electrical Systems

Index 223

Silicon-controlled rectifier (SCR), 131–132 Stator voltage, 175
Sine waveforms: Storage (see Energy storage)
pure, 49 Stored energy (see specific types, e.g.:
THD of, 53 Batteries)
Single-phase rectifiers, 64–72 Subsystem (component parts), of E/G
commutation in, 35 sets, 196–197
full-wave, 36–37 Superconducting storage device
harmonic currents with, 64–72 (SSD), 10
high-frequency fluorescent ballasts, Support equipment, for standby power
71–72 systems, 190
in line-current harmonics, 64, 66–69 Surge protection device (SPD), 10
notching and, 35 Swells (voltage swells), 7, 8, 30, 41
notching in, 36–37 Switch mode power supplies, 99–108
six-pulse rectifier, 69–70 on AC line, 20, 21
twelve-pulse rectifier, 70–71 conducted EMI, 106–107
Single-phase waveforms, 2, 3 DC/DC converters, 104–106
Six-pulse rectifiers, 4, 69–70, 115 offline, 100–103
Skin-effect phenomena, 5 Switches:
SOFCs (Solid oxide fuel cells), 142 automatic electromechanical transfer,
Solid oxide fuel cells (SOFCs), 142 198
Solid state transfer switches, 10, 199 by-pass transfer, 198
SPD (surge protection device), 10 manual transfer, 198
Square waveforms, 43, 49 solid state transfer, 10, 199
infinite Fourier series for, 43 transfer, 193, 198–200
pure sine wave vs., 45 utility transfer, 194
rms of, 49, 50 Switching:
THD of, 53 with MOSFETs, 21, 95
triangle wave vs., 45 utility, 1
truncated Fourier series for, 53 Switching circuits:
SSD (superconducting storage device), 10 high-frequency, 5
Standard(s), 15–23 in passive filters, 95
ANSI Standard C64, 17–18 Symmetra MW 1000 kVA, 136
CBEMA curves, 18–20 Synchronizers, in E/G set, 197
for E/G sets, 195–196 System Average Interruption Duration
for EMI, 20–23 Index (SAIDI), 107
EMI standards, 20–23
IEEE Standards, 15–17 (See also under TDD (total demand distortion), 78
IEEE Standard[s]) Tektronix P5200, 203
ITIC curves, 18–20 Tektronix P6042, 202, 203
Standard C64 (ANSI), 17–18 Telephone systems:
Standard Handbook of Electrical harmonic filters affecting, 87
Engineers (14 edition), 7 harmonics affecting, 44
th
Standby generator, 10 Temperature effects, 2
Standby power systems, 122–126, Testing:
189–200 for conducted EMI, 106–107
assembly of, 190 D.U.T., 107
design of, 189–190 of E/G set, 197
dynamic voltage compensators for, 190 THD (see Total harmonic distortion)
E/G sets in, 194–200 Theoretical analysis methods,
energy storage in, 137–138 155–156
sample systems, 191–194 Thermal measurement method,
UPSs for, 190 201–202
Starters, for E/G set, 196 Three-phase induction motors, 69