Outcomes of overvoltage monitoring and fault location in underground distribution networks
Proceedings 6th Russian-Korean International Symposium on Science and Technology. KORUS-2002 (Cat. No.02EX565) - Trang 447-451
Tóm tắt
This paper describes an information-measuring system for surge voltages monitoring and the outcomes of multi-year monitoring in 10 kV underground distribution networks. The statistical analysis of monitoring outcomes has shown a low level of the most often overvoltages in networks originating during restriking earth faults (REFs). For automatic location of REFs, a parametrical method based on the frequency properties of the network is offered.
Từ khóa
#Voltage control #Fault location #Intelligent networks #Breakdown voltage #Surges #Insulation #Earth #Computerized monitoring #Power cables #Life testingTài liệu tham khảo
lihachev, 1971, Earth faults in networks with isolated neutral and compensation of capacitive currents -M Energy, 152
0, GOST-18410-73 Power cables with impregnated insulation Technical conditions
10.1109/61.634156
dommel, 1969, Digital computer solution of electromagnetic transients in single and multi-phase networks, IEEE Trans Power App And Systems, pas 88, 388, 10.1109/TPAS.1969.292459
mayboroda, 2000, Implantation of devices of complete suppression of arc ground faults in the network of stations auxiliaries 6 kV of the Tyumen TPS-1 on the basis of resonant grounding of neutral/ Proc of scientific and technical conference «Conditions of neutral grounding techniques of networks 3-6-10-35 kV» - Novosibirsk GCRO, 65
0, Diagnostics and monitoring of MV cable networks, Electrotechnica, 2000, 48
goldobin, 1999, Monitoring of overvoltages in distribution cable networks, Scientific Herald, #2, 109