Page 399 - Practical Power System and Protective Relays Commissioning

Index 387

Executed substations, practical example of, service truck, 154 155
369 379 Gas insulated system (GIS), 90, 129, 143,
eXtensible Markup Language (XML), 197 198, 363
183 184 cable connection, 147, 149f
Extremely inverse (EI), 202 CB, 144 145
control system, 148 149
direct transformer connections, 147, 150f
F disconnecting and earthing switches, 143
Factory acceptance test (FAT), 180t gas compartments and zones, 151
Fast charging mode, 160 gas monitoring system, 149 150
Fault recorders, 141 instrument transformers, 146 147
testing, 142 SF 6 gas handling, 153 155
Fault setting resistor, 257 SF6 GIS components, 144f
Fault time duration, 141 substation, 9, 26, 369 379, 370t, 377t
Feeder backup overcurrent protections, 285 surge arrester, 148, 150f
sequence networks, 286f testing, 151 153, 363
worked example, 285 287 three-phase enclosure and single phase
Feeder circuit, 198 enclosure, 144f
Feeder unit differential protection, 287 Gauge calibration, 91
line differential protection, 287f, 288f Gauge checks, 91
worked example, 288 Generating stations, 31
Ferranti effect, 69 70, 71f hydro power stations, 31
Fiber optic (FO), 342 nuclear power stations, 31
line differential relay, 342f thermal power stations, 31
link testing, line differential protection Generator protection, 34, 194
with, 342 343 backup distance protection, 242
fiber optic line differential relay, 342f differential protection, 236, 237f
loop back simulation test, 342f frequency protection, 247
relay operating time test connection, 344f interturn fault protection, 248, 248f
Field failure loss of excitation protection, 244, 245f
protection. See Loss of excitation protection
negative-phase sequence current I 2
relay, 251 protection, 246
Flick test. See Polarity test (PT) OC protection, 242, 242f
Floating charge, 161 out-of-step protection, 244 245, 246f
FO. See Fiber optic (FO) REF protection, 240 241, 241f
Frame leakage busbar protection, 253f reverse power protection, 243
Frequency rotor earth fault protection, 246, 247f
protection, 247 setting, 306
response analysis, 66 backup impedance protection, 310f
Fuse failure, 228 229 biased differential protection for
blocking function, 337 generators, 312f
generator and transformer data, 307f
G loss of excitation impedance protection,
Gas 309f
compartments and zones, 151 worked examples, 306 313
gaseous byproducts, 91 stator earth fault protection, 236 239, 239f
insulated switchgear commissioning test, typical generator protective relays scheme,
26 27 249f
electrical tests, 27 voltage protection, 247 248
visual check and mechanical tests, Generators, 2
26 27 capability curve, 37, 38f
monitoring system, 149 150 connection in power stations, 41, 42f