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 |
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T tachogenerators, 125, 352 tank sizes, 467-68 tap off boxes, 989, 1073 TCRs see thyristor-controlled reactors tectonic plate boundaries, 509, see also earth cross-section tee joints, 1045 TEFC see totally enclosed fan-cooled motors telemetry software, 141 telephone lines, 834 temperatures: bearings, 272-76, 351
temporary over-voltages, 647, 759-72
bus systems, 490-95, 997-1007, 1094 conversion formulae, 370 electrical machines, 294-96 metal enclosed systems, 1094, 1097 slip-ring induction motors, 105 switchgear assemblies, 490-95 windings, 294-96 terminal boxes, 204-05 terminal equipment, 662-66 termination, cables, 271, 427, 627 test response spectrum (TRS), 521 testing: authorities, 203
TETV see totally enclosed tube ventilated motors burst immunity test, 503 bus systems, 1091-99 capacitor units, 953-69 conducted immunity test, 502 control transformers, 566-69 dielectric property verification, 301 dielectric properties for LV systems, 972 system is not surge protected, 972
electric motors, 285-308
system is surge protected, 972 EM field immunity test, 503 EMC and EMI tests, 501 ESD immunity test, 503 enclosures, 1097 equipment, 485-525 impulse voltage withstand, 1096 instrument transformers, 566-69 mechanical impact test, 501 metal enclosed assemblies, 483-528 metal enclosed bus systems, 1091-99 nozzles, 311 painting, 471-74 purposes, 291-92 quality systems philosophy, 285-88, 485 radiated immunity test, 502 radio-frequency immunity test, 504 radio influence voltage (RIV) test, 505 recording an earthquake, 510 surge immunity test, 504 switchgear assemblies, 483-528 tolerances, 308 transformers, 566-69 voltage transformers, 566-68 voltages, 301, 487 textile motors, 187-88 thermal: blast techniques, 737
curves, 73-77 over-current relays, 327-31 power stations, 204 |
ratings, 416
thermistors, 346-51 stability, 965-66 stresses, 945 time constants, 70 withstand time, 50-54, see also temperatures thermocouples, 349, 351 thermosetting plastics, 422 Thevenin's theorem, 704 three-phase four-wire systems, 781 throttle control, 166-68 through-fault condition, 554-55 thrust loads, bearings, 251 thyristor-controlled reactors (TCRs), 910-12 thyristor-switched capacitor banks (TSC), 909-12 thyristors: circuit comparison,146
commutation, 142 conduction, 142 control, 137-41 integrated gate commutated thyristors(IGCTs), 132 inverter units, 151-53 MOS-controlled thyristors (MCTs), 132 reactors, 910-12 rectifier converters, 147 switched capacitor banks, 909-12 symmetrical gate commutated thyristors(SGCTs), 134 transistor comparison, 146 time history of earthquakes, 511-12 time of start-up, 47-50 tin plating, 993 tolerable step voltages, 806 tolerable touch voltages, 806-07 tolerances, 269-70, 309 torque: accelerating, 210
Total Quality Management (TQM), 287 fasteners, 1043 induction motors, 7 motors, 41, 43-61, 196-97 output, 8 totally enclosed fan-cooled (TEFC) motors, 21 totally enclosed tube ventilated (TETV) motors, 26 touch voltages, 806-07, 814-16 TOV capability, 699-703 determination, 702-03
TQM see Total Quality Management gapless surge arresters, 699-703 traction type couplings, 225 transducers, 570, see current measurement transferences, surge arresters, 715-16 transformers: application, 529-75 control, testing, 566-69 core-balanced current type, 782-86 dynamic currents, 563-65 formulae, 574 instrument, 529-75 momentary peak currents, 563-66 mounting, 784-86 residual voltage, 534-38 selection, 529-75 short-time factors, 563 |
short-time rating, 563-64
transient recovery voltage (TRV), 160, 650-51, 657-58 standards, 574 surge transference, 694-96 test requirements, 566-69 types, 531, see also current transformers; voltage transformers induction motors, 650
transient-free switching, 858, 910-11 motors, 662-67 steep-fronted, 662-67 transients: overhead lines, 906-07
transistors, 127-30,146 severity determination, 667-68 stability, dynamic, 906-07
voltage surges, 648 transient, 907-08 bipolar, 127-28
transmission: bipolar insulated gate, 127 Darlington, 127-28 injection enhanced gate transistors (IEGTs), 129 transition to ISO-9001 (2000), 288 back to back a.c.-d.c.-a.c., 137
travelling wave reflection, 691-93 back to back stations, 136 belt drives, 233-50, see also belt drives, static drives and couplings d.c. transmission, 136 HVDC transmission, 135 lines, 889-96 loads, 221-54 network layouts, 397 networks, typical, 827 surge arresters, 683-86 system circuit diagrams, 397, 409-10 triacs, 131 triple harmonic generation, 841-43 tripping, 659 TRS see test response spectrum trunking system endurance, 1098 TRV see transient recovery voltage TSC see thyristor-switched capacitor banks tsunami, 515 ITIC (international tsunami information center), 516
tubular busbar properties, 1063 preventive measures, 525 tsunami warning system, 515 tubular conductor skin effects, 1078-79 tuning reactors, 979-80 turbine pumps, 190-91 turns per coil, 665 two-pole circuit breakers, 777 type tests: capacitor units, 965-67
electrical machines, 293 metal enclosed bus systems, 1093-98 metal enclosed switchgear assemblies, 486-506 transformers, 568-69 |
