Page 535 - Offshore Electrical Engineering Manual

522 Index

Automatic voltage regulator (AVR), 37, 209, British Standards, 347
265–267, 349 Brushless
generator, 209 alternator, 37, 38f
readjustment during heat run, 32 design, 35
Auxiliary DC supply, 373 BS EN 60898–1 MCB type, 227
Auxiliary hydraulic pump, 60 Buchholz devices, 213
Auxiliary pump, 60 Buchholz pressure sensing, 173
Availability, 398 Bulk oil circuit breakers, 73
Average horizontal illuminance, 151 Burst-fired process heater controllers, 117, 117f
Average illuminance, 151–153, 156t Bus ducting, 98
Average PFD (PFD avg ), 447 Busbar
AVR. See Automatic voltage regulator (AVR) faults, 221
sizing, 230
B testing, 465f
Back feeding, 256–257 zone protection scheme, 224, 225f
Back-up earth fault protection, 207 Busbar protection. See also Cathodic protection;
Ballast control systems, 330–333, 335, 337. Environmental protection
See also Integrated control systems differential protection, 224
FPSO, 330–332 frame earth protection, 223–224, 223f
integrated ship dynamic positioning control overcurrent and directional overcurrent
system, 331f protection, 221–222
multiscreen display, 332f simple directional overcurrent busbar protection
piping and instrumentation diagram, 334f scheme, 222f
semisubmersibles ballast control systems, simple plain overcurrent busbar protection
332–333 scheme, 222f
tank level display, 331f unrestricted earth fault protection, 222–223
Ballast/ballasting, 339 Bypass supply, 114
level measurements, 330–332
system, 341 C
Band-pass filter, 220 Cable. See also Electrical cables
Base values, 252 connections, 359, 375
Basic photometric data, 156 rack diagram, 187–188
Battery/batteries, 283 rack routing diagram, 187–188, 189f
boost charging facilities, 116 routing diagram, 188, 191f–192f
chargers, 283 schedules, 194–198, 199f–200f
lead–acid planté cells, 115 sizing, 230–231
lead–acid recombination cells, 115 support systems, 284–286
nickel–cadmium cells, 115–116 cable tray, 285
types, 115–116 general, 284–285
ventilation and housing of vented ladder rack, 286
batteries, 116 supporting steelwork, 285
Bearing tray installation, 285–286
failures, 215 tray, 285
noise, 301 CACA cooling. See Closed air circuit, air cooled
Block and bleed system, 58 cooling (CACA cooling)
Blowout, 458 CACW machine. See Closed air circuit, water
coils, 89–90 cooled machine (CACW machine)
preventer, 458 CAD. See Computer-aided design (CAD)
Boolean reduction, 395 Calibration, 349
Boost charging facilities, 116 certificate, 347
Boundaries, defining, 316 relay calibration tests, 370
Breaking current, 69–71 Canadian Coast Guard standards, 324
making current, 71 Capacitance, 313