A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z |
G
galvanizing processes (application static drives), 173-76 gapless surge arresters, 684 characteristics, 684-87
gapped iron core reactors, 975-76
distribution class, 709 protective characteristics, 688-99 selection, 699-707 station class, 684, 711-14 TOV capability, 699-703 gapped surge arresters, 683-84 gas: circuit breakers, 733-40, 748-57
gate bipolar transistors (IGBTs), 127-28, 153
classification, 199 insulated switchgears (GIS) 748-57 gate turn-off switches (GTOs), 131-132, 153 generating stations: auxiliary services, 410-11
generators:
parallel operation theory, 594-601 protection schemes, 592-93 as condensers, 581-82
GFF, see ground fault factors
as synchronous motors, 581 circuits, 404-08 fault currents, 406, 613 fault levels, 402-08 grounding, 612-15 induction, 212, 214-17 selection of circuits, 407-08 stability levels, 892 synchronous, 212 synchronous motors, 581-82 wind-power, 214-17, diesel generators
GIS- see switchgears gland plates, 425 grades, aluminium alloys, 1061 greasing bearings, 276 grid ground conductor sizes, 813-15 |
grid resistors, 100 electronic circuits, 393 ground conductors, 815-22 ground fault factors (GFF), 768-69 ground fault neutralizers, 767-68 ground fault protection schemes, 773-95 current determination, 812-13
unrestricted, 788-89
current sharing, 817 directional, 789-90 formulae, 794 hazardous areas, 780-81 LV systems, 778-80 parameters, 786-90 relay current settings, 790-91 restricted, 787-88 selection parameters, 786-90 single current transformers, 786 standards, 794 three-phase four-wire systems, 788 ground faults, voltage transformers, 537-38 ground isolated, 164 ground leakage: CBCT currents, 783
ground loop humming, 164
circuit breakers, 778 HV systems, 781 ground potential rise, 807-08 ground resistance, 803, 811-12 ground safe path, 164 grounded systems, 765-67 grounding: application of different systems, 791-93
arrangements in a draw-out panel, 427-28 artificial, 770-71 clean ground, 164 conductors, 803-34, 805-06
different methods, application, 791-93 EHV systems, 806-20 electrodes, 799-806 |
generators, 612-14
grounding grids:
HV systems, 781-86, 799-802 insulation coordination, 769-70 isolated ground (IG), 164 isolated phase bus systems, 1075 LV system, 775-81, 799-802 necessity, 765 neutral, 769-71 practices, 643-822 shielding of signals in electronic circuits, 164-65, 393 systems, 759-72 theory and grounding practices, 773-95 transformers, 979 corrosion factors, 813
grounding practices, 797-822
design, 813-20 step/touch voltages, 814-16 clean ground or isolated ground, 164
grounding stations:
conductor metals, 803-06 formulae, 821-22 grid design, 813-20 ground fault currents, 812-13 ground resistance, 811-12 industrial installation, 799-802 location potential differences, 806 method selection, 801-02 power generating stations, 806-22 shielding of signals, 164, 393 standards, 821 voltage gradients, 806-10 design parameters, 808-10
grounding systems, 791-93
maintenance, 806 step/touch voltages, 814-16 GIS- see switchgears GTOs see gate turn-off switches |