Index



P
painting:
cleaning preparations, 463-64
controlgear assemblies, 463-81
curing, 472
degreasing, 463-64
effluent treatment, 463, 473-81
electrostatic, 471-74
final coats, 469-71
fume control, 476-81
paint shop layouts, 470
priming, 468
procedures, 469
standards, 481
switchgear assemblies, 463-81
testing, 474-75
panels:
annunciation schemes, 588-90
control, 389-92, 587-91, 860-61
design parameters, 860-61, see also switchgear assemblies
paper insulated cables, 622, 633-35
parallel operation DG sets, see diesel generators
driving torques, 595
drooping curves, 596
excitation changes, 597
hunting procedure, 601-03
infinite bus synchronization, 598
power generation, 594-607
procedures, 601-07
synchronization, 601-07
theory, 594-99
parallel switching of capacitors, 831-32, 853-55, see also capacitors,
partial discharge tests, 967
passivation, 467, 481
PCB-filled capacitors, 964
PCCs see power control centres
peelable coatings, 475
per unit voltage, definition, 655
performance:
d.c. drives, 178-80
a.c. drives, 178-80
induction motors, 3-40
service conditions, 9-17
time of start-up, 47-50
tolerances, 308

periodic duties, 65-70
periodic speed change, 68-69
Petersen coil reactors, 767-68, 979
PF (or p.f.) see power factors
PID Control, 392
phase bus systems, segregated, 986-87
phase enclosure shorting, 1070
phase interleaving, 1022-24
phase isolated bus system, 987, 1069-89
phase spacing, 1022
phase transposition, 1024-25
phasor control, 117-25
diagrams, 533-34
direct torque control, 123-25
drives comparison, 123
field-oriented control, 120-23
flux braking, 125
flux-oriented, 122
motors, 113-26
rectifier units, 157
single vector control, 118-20
torque control, 123-25
philosophy of quality systems, 283, 285-88
phosphating, 463-67, 481
physical properties, conductors, 1051-52
physio-chemical analysis, 476
pickling, 464, 466
pipes:
friction losses, 370-75
grounding, 799-800
pitch lengths, V-belts, 248
plant:
effluent treatment, 479-80
flow diagrams, 479
layouts, 480
plastics, 422

plate grounding, 799
PLCs, 173, 391-92, 913-15
PLC based control panels, 389-91
polarization index, 261-62
polyphase induction motors, 5-8
positive phase sequence impedance, 397-400, 765-66
powder painting, 471-74
power cables, see cables
power capacitors see capacitors
power circuits:
short-circuit tests, 495
switchgear assemblies, 445-55
power control centres (PCCs), 385, 387
power Darlingtons, 127
power diodes, 126
power distribution, 418-19
circuit diagrams, 409-10
fault levels, 417
galvanizing processes (static drives), 177
panel short-circuit tests, 412
panels, 496
short-circuit tests, 412
power factors (p.f.):
automatic correction, 864-67
benefits of improving, 828
capacitor rating improvement, 861-63
correction, 864-73
correction relay, 870-73
diesel generators, 585
effects of motor loading, 17-18
electric motors, 17-18, 299, 861-62
improvement system, 827-28, 883, 906-08
industries, 867
load effects, 17
measurement, 298-99
power capacitors, 825-79
reactive control, 896-900
relays, 870-73
power frequencies:
bus systems, 1094-95
metal enclosed bus systems, 1094-96
switchgear assemblies, 381-89
tests, 304, 487-90, 1094
voltages, 302, 489-90, 1094-96
power generation and distribution, 403, 409-10, 700-01, 827, 896
circuit diagrams, 409-10
grounding practices, 797-822
station fault levels, 403
surge arresters, 700-01, see also generator fault level
power networks
assessing fault levels, 416-20
auto-reclosure scheme, 907-08
dynamic stability, 906-07, see also SCADA
transient stability, 906-07
power ratings belts, 235, 243
power reactors see reactors
power saving, 168
power stations protections, 591-94
power system fault currents, 396
power system automation,
see automation
power transfer, 890, 892, 895-96
power transistors, 127-30
pre-treatment non-ferrous components, 467
pressure relief facilities, 709-10
pressurization systems, 1077
pressurized enclosures, 202
priming paint, 468
process monitoring, 389
process plant operation, 173-76
programmable logic controllers (PLCs), 389-92
protection: 438, 608, 961
analysis, 716-17
bus systems, 1069-70, 1097
capacitors
bank, 961
units, 953-69
circulating current scheme, 553
contact bouncing, 666-67
current transformers, 544, 551-57, 563, 783

diesel generators, 587-94
domestic single-phase systems, 775-78
dust protection test, 306
electric motors, 317-57
equipment, 438, 608, 961
gapless surge arrester characteristics, 714
generating stations, 440
grounding faults, 773-95
harmonic effects, 157, 319, 842
induction motors, 317-57
industrial single-phase systems, 775-78
isolated phase bus systems, 1069-70
lightning strikes, 648
locked rotors, 51, 335
margins surge protection, 688
metal enclosed bus systems, 1097
motors, 317-57
parameters ground fault, 770-71
power stations, 591
relays, 441-43, 779-80
schemes, 438, 608, 961
selection of schemes, 770-71, 773-93
ground fault, 786-90
phase fault, 438-41
selection of surge arresters, 703-06
series capacitors, 960, 962-63
shunt capacitors, 955-60
single current transformers, 786
single-phase systems, 335-37, 775-78
spill currents, 555
stalling, 335
surge arresters, 688-99
analysis, 716
levels, 688-99, 703-05
margins, 688
selection, 703-06
surge transferences, 666-67
switchgear, 353-57
switching surges, 666-67
transferred surges, 694-97
transformers, 783
unfavourable conditions, 327-32
verification degree of protection, 306-08
voltage surges, 337-38
voltage transformers, 532
voltage unbalance, 335
water ingress, 306-08
protective circuit verification, 500
proximity effects:
bus systems, 1021-25
busbar reactance, 1014-16
conductors, 1008, 1013-25
derating, 1021-22
isolated phase bus systems, 1080
minimizing, 1022-24
multicore cables, 625
voltage unbalance, 1016-21
PS type current transformers, 553-63
PTC thermistors, 347-48, 351
puffer technique, 735-36
pull-out torque tests, 300
pull-up torque tests, 300
pulleys:
drive rotor suitability, 252-54
installation, 269-70
motor loads, 251
tolerances, 269-70
pulse encoders, 125
pump motors, 190-95
pump power requirements, 369
punched grid resistors, 100
PVC insulated cables, 424
PWM causing shaft currents,165

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