Page 541 - Offshore Electrical Engineering Manual

528 Index

Fuel start and stop buttons, 265
choice, 56 synchronising equipment, 267–268
gas decrement curve, 68–69, 69f
disturbances, 54–55 exciter, 350
pressure, 54 interface with mechanical components, 351
supply disturbances, 50–51 modules, 57
temperature, 54 reactance, 263
Functional design specification, 270 rooms, 18
Functional Safety Standards, 169–170 running prime mover, 351
Fusegear, disadvantages with, 71 subtransient reactance, 36
Fuses, 227 time of testing, 349
rating for voltages below 1000 V, 353–354 Glands, 96–97, 98f
Glass fibre reinforced plastic, 297
G Global standards for hazardous area installation,
Galvanic 319–324
anode systems, 142 Goal setting culture, 414
isolation, 324 Governor raise/lower switches, 265–267
loop calculations for galvanic barriers, Governors, 61
313–314, 314f Graphite, 141
Galvanum III, 142 Green line system monitors, 335
Gas(es), 4, 305 Grey cast iron, 296
aero engine derivative generator set, 48f Ground flare, 336
applications, 50 grp. See Reinforced glass fibre (grp)
compressors, 126 Gunmetal, 296
detection equipment, 165–166
export compressors, 110 H
fuel gas supply disturbances, 50–51 Harmonic(s), 111, 273, 275f
gas-ignition engines, 53 analysis, 241
generator, 47 current or voltage total harmonic distortion, 276
generator package, 42, 42f expansion of periodic function, 274
industrial engine-based generator set, 49f–50f orders, 275, 275f
ingestion from leaks, 52 overheating
injection compressors, 101 of motors, 273
reinjection, 462 of transformers and increasing associated
separation, 460 losses, 273–274
systems and ventilation control on rigs, 338 percentage distortion, 274–276
tension leg platforms in gas installations, 341 resonance effects, 274
turbine temperature limits, 51–52 switch mode power supplies, 274
turbines, 47–52 uninterruptible power supplies, 274
GE ‘Speedtronic’ governor, 51 Hazard and Operability study (HAZOP study), 445
Gearbox, 102 Hazard(s), 43, 344. See also Hydrocarbon hazards
General offshore support, 339 inherent safety hazards, 3
Generating voltage, 36 offshore
Generation bus, 230 crude oil and condensates, 4
Generator(s), 207, 210, 280–282. See also Motor(s) gas, 4
capability diagram, 37–39, 40f operational hazards, 4
Circuit Breaker Evaluation per IEEE C37.013, source schedules, 316, 317f
244t Hazardous area, 105
controls, 265–271, 266f–267f defining boundaries, 316
automatic voltage regulator and governor raise/ enclosure, 307
lower switches, 265–267 EX ‘nA’ non-sparking, 307–308
instrumentation, 268–269 explosion-proof equipment groups, 306, 306t
load sharing systems, 269 explosion-proof EX ‘d’ equipment, 305