Title :
On resistive grounding of neutral point of APP network
Author_Institution :
Novosibirsk State Tech. Univ., Russia
Abstract :
In this paper, the results of atomic power plant (APP) house system operation modes analysis, the selection of the optimal value of the neutral point grounding resistance of the network, the selection of the place for the special neutrals assignment transformer installation, to which the resistors are connected as well as the capabilities of parallel connection of ground-fault neutralizers and resistors are considered. By installing high ohmic resistors of 500 ohms into the neutrals assignment transformers, the currents of the single-phase ground amount to 10 to 20 A, lower than those with the installation of low ohmic resistors of 100 ohms. Resistors of 500 ohms are not disconnected in processes tracking the single-phase ground and the single-phase arc ground.
Keywords :
earthing; nuclear power stations; resistors; atomic power plant; ground-fault neutralizer; house system; nuclear reactor; point grounding resistance; resistive grounding; special neutrals assignment transformer installation; Emergency power supplies; Feeds; Grounding; Power generation; Power transformer insulation; Renewable energy resources; Resistors; Surges; Thermal resistance; Voltage;
Conference_Titel :
Modern Techniques and Technologies, 2003. MTT 2003. Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists
Print_ISBN :
0-7803-7669-2
DOI :
10.1109/SPCMTT.2003.1438112
