Page 400 - Practical Power System and Protective Relays Commissioning

388 Index

Generators (Continued) DC system components, 82f,83
step-up transformer protection, 34 differential protection of high-voltage
synchronizing, 41 transmission feeders, 262 263
zone, 34 communication through high-frequency
Generic object oriented substation events signal, 264f
(GOOSE), 180t, 183 line differential protection with fiber-
Generic substation event (GSE), 183 optic communication channel, 265f
Geothermal energy, 34 resonant AC test for 132 kV cables, 78, 78f
GIS. See Gas insulated system (GIS) test, 96 97
GOOSE. See Generic object oriented underground cables, 71
substation events (GOOSE) HMI. See Human machine interface (HMI)
Grading method, 208, 209f Homopolar links, 81, 81f
Grounding switch. See Earthing switch (ES) Hook-stick operated disconnect switch, 133,
GSE. See Generic substation event (GSE) 136f
Horizontally-upright mounted disconnect
switch, 133, 134f
H Human machine interface (HMI), 180t
Harmonic restrain test, 346 HV. See High voltage (HV)
High voltage (HV), 271, 327, 361 Hydro generating stations, 1
cables commissioning tests Hydro power stations, 31
electrical tests, 27 Hydroelectric energy, 35
visual checks, 27 Hydrometer, 159
DC power systems transmission, 78 80,
79f
DC transmission components, 81 82 I
DC transmission construction, 80 81 ICD. See IED capability description (ICD)
DC system components, 83 IDMT. See Inverse definite minimum time
levels, 1 (IDMT)
tests, 43, 121 IEC 60044 6 standard, 113
transmission line impedance values, 363 IEC 61850 protocol, 179 184, 201
High-impedance bus topology, 183
circulating current protection, 252 communications protocol field, 180t
busbar protection supervision relay, fundamental design and operation,
258 259 181 183
check zone feature, 257 communication, 183
fault setting resistor, 257 functions within substations, 182f
internal fault in, 257f logical nodes and services, 182
nonlinear resistance, 258 physical devices, 182
through-fault stability limit, 257 SCL, 183 184
typical busbar protection, 259 260 substation automation system, 184
differential protection, 279 testing and commissioning of substation,
setting, 301 306 185 187
High-resistance earth faults, 215 216 IEC curves overcurrent relay characteristic,
High-set overcurrent relays, 271 209, 209t
High-speed IED capability description (ICD), 183 184
earthing switches, 136 137, 143 IEDs. See Intelligent electronic devices (IEDs)
reclosing scheme, 232 IEEE. See Institute of Electrical and
High-voltage Electronics Engineers (IEEE)
batteries in high-voltage substations, 161 162 Impedance, 173 174, 219
cables, 72 relay, 242, 308
end terminations, 72 test of rotor, 44
at site, 72 78 voltage of power transformer, 63