Index
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z |
| M
machines: quality systems, 285-87
machines
ratings (for TRVs), 665-66 testing, 283, 291-314 voltage surges, 660-62, see also electrical magnetic characteristics, reactors, 973 magnetic couplings, 233 magnetic fields, enclosures, 1075 magnetic particle braking, 55 maintenance: bearings, 272-76
manufacturing:
capacitor units, 953-69 checks on motors, 270-71 controlgear assemblies, 441-42, 444-45 electric motors, 265-267 grounding stations, 806 HV capacitor units, 963-64 insulation, 260-63 LV capacitor units, 963-64 switchgear assemblies, 441-42, 444-45 winding insulation, 255-65 man machine interface (MMI), 388 capacitors, 933-52
material constants, ground conductors, 813
practices switchgear assemblies, 425-27 switchgear assemblies, 425-29 maximum continuous operating voltage, 685 MCCs, see motor control centres MCTs, see MOS controlled thyristors measurement: electrical machines, 291
MCOV, 685-86
ground resistance, 803 power factors, 299 measuring current transformers, 549-50, see also current transformers measuring voltage transformers, 532, see also voltage transformers mechanical: braking, 54-57
see also aluminium; copper
HV& LV mechanical operation verification, 501 interlocks, 431-33 properties of conductors, 1051, 1054 mesh voltage, 807 metal enclosed bus systems, 983-1037
continuous current capacity, 1094
metal enclosed switchgear assemblies:
degree of protection, 1097 design, 997-98, 1007-08 dynamic current testing,1097 field tests, 1094, 1098 impulse voltage withstand, 1094-95 insulation levels, 1095-96leakage current measurement, 1094 minimum sizes of conductors, 1000 momentary peaks currents, 1097 power frequency voltages, 1095-96 rated continuous current capacity, 1094 reactance measurement, 1098 recommended tests, 1093-94 resistance measurement, 1098 routine tests, 1093-94, 1098 seismic disturbances, 1094 service conditions, 997-98, 1004-06 short-circuit effects, 997-1000 solar radiation effects, 1096 standards, 1099 temperature rise, 1094, 1096-97 testing, 1091-99 thermal effects, 998-1000 trunking system endurance, 1098 type tests, 1093-98 types, 985-90, see also bus systems busbar testing, 491-92
switchgear assemblies
dynamic current, 499-500 earthquake engineering, 507-26 field tests, 506-07 heat losses, 491 heat run tests, 493 impulse voltage withstand test, 489 insulation, 488 momentary peaks, 499-500 quality systems philosophy, 485 recommended test, 486 routine tests, 486, 506 seismic effects, 508-10 seismic tests, 517-25 short-circuit strength, 495-99 standards, 526-27 temperature rise limits, 490-95 testing, 483-528 type tests procedure, 487-506, see also metal properties, 1051 see also aluminium; copper metallized polypropylene capacitors, 935 metals: grounding conductor constants, 813
grounding conductors, 804-05 |
metering, diesel generators, 589-94
micro siting, 217 state agencies, 220
microprocessor-based relays, 341-43, 872-73
microprocessor-based releases, 731-32 mid-point compensation, 895 mine motors, 202 minimum oil circuit breakers, 727-28 mixed dielectric capacitors, 936-37 moisture detection in motors, 351
moment of inertia, 48, 60, 370
in soil, 812 momentary peaks: current, 563-64
monitoring:
metal enclosed assemblies, 499-501 testing, 499, 1097 health surge arresters, 712
MOS controlled thyristors, 130, 132
insulation, 263-64 motors operating conditions (formed coils), 350-52 MOSFETs control, 127 motor control centres (MCCs): assembly types, 385
motors: draw-out chassis, 430 short-circuit tests, 499 shrouding, 428 space heaters, 428 switchgear assemblies, 428-29 accelerating torque, 53
actuator motors, 196-97 agriculture, 195-96 bearings, 250-51, 272-76 bearing currents, 165-66, 273-76 braking, 54-58, 125 cable selection, 355, 617-41 card motors, 187 centrifuges, 189-90 circle diagram, 18-20 collieries, 202 commissioning checks, 270 components, 353-57 control, d.c. link smoothing, 156-57
coordination of motors and drives, 203-04 bipolar junction transistors, 127 constant d.c. voltage source, 157 current sources, 157 cyclo converters, 137 Darlington transistors, 127 direct torque, 123-25 energy conservation, 166-69 evolution solid-state technology, 126-30 feedback devices, 125 frequency converters, 137 gate turn-off switches, 130 insulated gate bipolar transistors, 127-28 inverter units, 151-53 MOSFETs, 127 rectifier unit configurations, 145 regenerative schemes, 155-56 silicon rectifiers, 130-31 slip recovery systems, 171-72 soft starters, 357 soft starting, 169-70 speed variation, 177 static drives, 166-77 stopping, 171 thyristors, 130-33 torque, 121-24 turn-off switches, 131 voltage sources, 157 cranes, 188-89 critical installations, 204 deep-well pumps, 190-95 d.c. drives, 178 direct torque control, 123-25 duties, 63-82 efficiency variation with loading in EE motors, 38 energy efficient motors (EEM), 34-38 calculation for energy saving, 38
explosion-proof, 200 coordination, 38 fault conditions, 324-27 field-oriented control, 120-22 flame-proof, 200 flux braking, 125 flux-oriented phasor control, 122 formulae, 60-365 generators, 587-608 hazardous locations, 198 heating, 49-51 inching, 58 increased safety, 200-01 induction, 3-40, 63-82 induction generators, 212-19 installation, 267-81 ISO specifications, 285-90 jogging, 58 load torque, 47 |
locked rotors, 51, 335
loom motors, 187-88 lumped capacitances of winding, 274 maintenance, 260, 267-81 mill centrifuges, 189 mines, 202 monitoring operating conditions, 350-53 mounting types, 20-21 no-load start-up, 50 noise, 197-98, 209, 300-01, 580-01 non-sparking, 202 on-load start-up, 50 opposing torque, 47 phasor control, 117-25 power stations, 207-09 pressurized enclosures, 202 problems solved, 276-78 protection, 317-65 circuit breakers, 357
pulley loads, 251 fuse free system, 356-57 ratings, 357 semiconductor devices, 157-64 switchgear, 357-60 pumps, 190-95 quarries, 202 re-acceleration, 206-07, 209 recovery voltage, 660 remedies to problems, 276-78 retrofitting, 38
ring frame, 187-88 moulding compounds, 421 safety devices, 349 semiconductor devices, 145-51 service conditions bus systems, 1004
service factors, 198 cables, 623 motors, 9 switchgear assemblies, 414 shaft currents, 165, 273-75 single phasing, 324-25, 335-36 single phasor/vector control, 118-20 slip-ring induction type, 95-110 special-purpose, 185-220 speed sensors, 125 speed-torque curves, 43 spinning frame motors, 187-88 stalled conditions, 51-52 stalling protection, 335 standards, 60, 182, 364 start-up, 49-50 starting current effects, 46-47 starting frequency, 59-60 static control, 111-83 stator currents, 321 steep-fronted TRVs, 662-67 stopping frequency, 59-60 sugar mill centrifuges, 189-90 surface-cooled, 196 surge arresters, 708-09 textile, 187-88 thermal power stations, 207-09 thermal withstand time, 50-52 thermistor protection, 346-49 time of start-up, 47-50 torque, 41-62 accelerating, 47-49
total protection, 343-46 locked rotor condition, 51 pull-in or pull-up, 43 pull-out or break down, 43 rated, 43 speed torque, 43-45 starting or break away, 43 transient recovery voltage, 650 triacs, 131 TRVs, 650 turbine pumps, 190-91 unfavourable conditions, 319-24 vector control, 117-25 vibration, 197-98, 209, 300-01, 580-01 water-cooled, 351 Zone specifications, 200-02, see also electric motors; HV & LV motors; slip-ring induction motors; squirrel cage induction motors mounting: busbars, 421, 1033, 1039-48
moving electrode electrolyte controllers/starters, 108-09 CBCTs, 783-86 conductors, 1041 current transformers, 783-86 induction motors, 20 insulators, 1041 practices, 1039-48 types, 20 multicore cables, 617-41 multispeed motors connection diagrams, 114 |
