Page 1024 - Industrial Power Engineering and Applications Handbook

Index 969
ratings. switchgear assemblies. 345-50, relubrication of bearings, 236-8 section determination. conductors/
364-8. 371-2 required response spectrum (RRS), 441-4. enclosures. 941-5
re-acceleration of motors, 184-5. 187 450-1 segregated phase bus systems. 85940
re-strikes. 566 residual current circuit breakers see seismic effects:
reactance: ground leakage ... bus systems. 871. 954
bus systems, 8x34. 957-8 residual voltage transformers (RVTs). electrical machines. 252
measurement. 957-8 460-4 energy released, 437-9
reactive banks, 803-7 resin-rich coils, 261 metal enclod systems, 436-9. 954
reactive control: resistance: switchgear assemblies. 363. 436-9
line length effect, 794 bus systems measurement, 957-8 testing, 421-2, 444-7
load angles. 794-802 discharge devices, 822-4 see nlso earthquakes
power factors. 795-6 electrical machines measurement, 252- self-healing capacitors, 8 I I. 8 I4
power transfer optimization. 792 802 3 semiconductor devices:
qymmetrical lines, 798 human body, 707-9 circuit configurations. 1 16-28
reactive power management. 783-90 insulation tests, 225 converter units. I 17-1 9
mid-point compensation, 79 I measurement, 252-3, 957-8 microprocessor-based relays. 296-9.
objectives. 784-5 resistance temperature detectors (RTD), 77 1-2
power transfer, 789-90 254, 302, 305. 306-7 motor control. I 16-28
series inductance, 757 resistivity of soil. 700-1, 710 protection, 130-4
transmission lines, 785-9 resonance: rectifiers units. 1 17-1 9
uncompensated transmission lines. effects, 557-8, 604-5 relays, 296-9. 771-2
785-9 harmonic generation, 74 1 sequence impedances. 349
rcactors. 845-53 surge arresters, 604-5 series capacitors, 779-82. 799, 800
I-phi characteristics, 848-50 response spectrum of earthquakes. 439-4 1 ferro-resonance effects. 78 1
air cored. 848-9 restrike voltage, 730 protection, 834-7
application, 850-3 rigid couplings, 197 rating, 779-80
arc suppression, 852 ring frame motors, 167-8 sub-synchronous resonance, 78 1-2
connections, 85 1 rising mains bus systems, 861-2 system voltage regulation, 779-80
coreless. 848-9 rod grounding. 697-8 series compensation, 799-802
couplers. 852 rotating arc technology, 641-2 advantages. 780-2
current limiting, 850-2 rotating machines: syztem voltage regulation. 782-3
dampening, 852 protection, 576-7 series inductance. 757. 823-4
design criterion. 848-50 surge protection, 578-83 series reactors, 747-8. 850-2. 853
gapped iron core type, 849-50 switching surges, 578-83 service conditions:
grounding transformers, 852 see also electric machines; electric bus systems. 8624. 869-72
magnetic characteristics. 847 motors; HT & LT motors; slip- cables, 544
neutral grounding, 852 ring induction motors; squirrel metal enclosed systems. 8623
saturated types. 849-50. 884-5 cage induction motors performance. 9-17
selection, 847 rotors: switchgear assemblies. 342. 362-4
series, 85&2 designs, 3740 service factors. 17X. 210
shunt, 850 double squirrel cage motors. 3840 sewage submersible pump motors. 173
smoothing, 852-3 heat, 279, 281-2 shaft currents, 236-8
standards, 853 locking prevention, 291 shell protection, 830-1
types, 848-50 pulley drives, 215-16 shielding signals, 339
receiving-end voltage, 799-801 resistance induction motors, 84-7, 9 1 - shock loading, 65-6
recording earthquakes, 43943 3 short-circuit effects. 864-9. 930. 93 I
rectangular busbars. 920-1, 922 slip-ring induction motors, 84-7 short-circuit tests:
rectifiers: stator rubbing, 242 metal enclosed switchgear asseinblies.
comparison. 120 tests, 2634 429-32
converter circuits, 120 round conductor grounding, 698-9 motor control centre. 433
semiconductor devices. 117-19 routine tests: panels, 430
thyristors. 120 bus systems, 9534, 958 power circuits, 429
unit configurations, 120-1 current transformers, 494-6 power distribution, 360-1. 430
reduced voltage starting, 72-8 clcctrical machincs, 252 short-time current. 43 1
reflections. surge arresters, 621-3 metal enclosed bus systems. 9534. 958 switchgear assemblies. 429-32
regenerative schemes, 127-8, 155-6 metal enclosed switchgear assemblies, short-time:
relays: 42 1,435 current, 43 1
bi-metallic thermal, 284-5 voltage transformers, 492-3 duties, 63-5
electromagnetic, 294-5 rules of thumb, 321-9 factors, 489
fwt-responding, 583 RVTs see residual voltage transformers induction motors. 63-5
heavy duty. 285 ratings
LT motors. 3 IO cables, 547-8
microprocessor-based, 296-9. 77 1-2 safety: components guidelines, 367
overcurrent settings. 285-6 capacitor units, 829-37 switchgear assemblies. 34650,
overcurrent type, 283,284, 286 devices, 306 364-8
protection, 293-9, 682-4 electric motors, 306 transformers. 48X-90
\ingle-device motor protection, 293-9 Ex ‘i’ circuits. 182-3 shrouding, 374-5, 378. 379
holid-htatc. 29.5-6 salurated type reactors, 849-50. 884-5 ~er dso enclosures
thermal overcurrent Iype. 283. 284, scoop control fluid couplings. 201-3 shunt capacitors, 799. 800. 829-34
286 screws. standards, 912 shunt reactors. 798-9. 850