Page 237 - Power Quality in Electrical Systems

Index 219

Harmonic filters: Infinite Fourier series:
active, 95–97, 119 for square waves, 43
for adjustable speed drives, 86 for trapezoidal waveforms, 46
application of, 10 for triangle waves, 44
hybrid, 95–97 Information technology equipment, 156
multisection, 87–95 Information Technology Industry Council
peak and valley of, 86–87 (ITIC) curves, 18–20
power, 119 CBEMA curves and, 151
telephone systems affected by, 87 dynamic voltage compensators on,
Harmonic pollution, 2 (See also 151
Conducted EMI) Equipment Sensitivity curve, 112
Harmonic voltages, 5 UPSs on, 151
Heat, effects of, 2 Inputs, to controllers, 163
High frequency switching power supply, 99 Installation, of E/G sets, 196–197
High-frequency fluorescent ballasts, 71–72 Institute of Electrical and Electronics
Hot swappable batteries, 134, 191 Engineers (IEEE):
Hybrid harmonic filters, 95–97 Authoritative Dictionary of IEEE
Hysteresis loss, 5 Standard Terms, 6
on distortion factor standard for
Ideal voltage waveforms, 2–3 transformers, 5
IEC (see International Electrotechnical on filters, 76, 78–79
Commission) on harmonics in electrical systems, 5
“IEEE Recommended Practice for on measuring power quality, 5
Monitoring Electric Power Quality” on power quality, 6
(see IEEE Standard 1159) on power quality events, 1
“IEEE Recommended Practices and on sag, 18
Requirements for Harmonic Control standard terms of, 6
in Electrical Power Systems” standards of, 15–17 (See also under
(see IEEE Standard 519) IEEE Standard[s])
IEEE Standard(s), 15–17 on transformers, 5
IEEE Standard 519 (IEEE Std 519-1992), Insulated gate bipolar transistors
15–17 (IGBTs):
for filters, 78–79 in rectifier, 187
goal of, 76 SCRs for, 132
harmonic currents produced by, 76 switching with, 95
history of, 5 Insulators, optical, 10
on TDD, 78 Interharmonics, 5, 43
IEEE Standard 1159 (IEEE Std. on AC lines, 20, 21
1159-1995), 5, 6, 15, 17 DC/DC converters and, 104–106
IEEE Std 1346-1998, 18 defining, 5
IEEE Std C57.12.00-1987, 5 EMI and, 6
IGBTs (see Insulated gate bipolar fluorescent ballasts, 71–72
transistors) harmonic pollution (see Conducted
Impulsive transients, 7, 8, 30–33, 41 EMI)
Incandescent lamps, 44 harmonics vs., 5
Induction machines, 42 IEC definition of, 5
Induction motors, 173–177 switching circuits, 5
hazards of, 174–175 switching power supply, 99
operation of, 174 (See also Harmonic[s])
phenomena of, 175–176 International Electrotechnical
protection of, 176–177 Commission (IEC):
starting, 25, 26 on EMI, 21
three-phase, 69 on interharmonics, 5