Electrical distribution networks with isolated neutral point - the value of the capacitive earth-fault current and impact on the operation of these networks

被引：0

作者：

Nohacova, Lucie ^{[1
]}

Vykuka, Roman ^{[1
]}

Zak, Frantisek ^{[2
]}

Kropacek, Vaclav ^{[3
]}

机构：

[1] Univ W Bohemia, Dept Elect Engn & Environm Engn, Plzen 30614, Czech Republic

[2] EGE Sro, Sect Elect Power Engn, Dept Distribut Network Operat, Ceske Budejovice, Czech Republic

[3] CEZ As, Div Distribut & Foreign, Plzen, Czech Republic

来源：

PROCEEDINGS OF THE 8TH INTERNATIONAL SCIENTIFIC SYMPOSIUM ON ELECTRICAL POWER ENGINEERING (ELEKTROENERGETIKA 2015) | 2015年

关键词：

renewable energy sources; electrical network operation;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Distribution networks operated with isolated neutral point the capacitive earth-fault current flows through the point of fault in the case of a single-phase-to-earth fault. The magnitude of the current depends on the used type of line and the scope of network. There are many reasons for determining values of the capacitive earth-fault current. One of the most important reasons is the distribution networks operation safety. During a single phase earth fault, it is necessary to adhere to the allowed values of the touch voltage. This article has been written based on own knowledge and long-time experience acquired by the processing of measurements in the distribution network. The described method has been verified in real operation and based on the results a special-purpose automatic system for the measurement of the capacitive earth-fault current in a network with isolated neutral point has been developed.

引用

页码：77 / 80

页数：4

共 34 条

[31] Limitation of cross country fault currents in MV distribution networks by current limiting reactors connected between cable screens and primary substation earth electrode
Cerretti, A.
D'Orazio, L.
Gatta, F. M.
Geri, A.
Lauria, S.
Maccioni, M.
ELECTRIC POWER SYSTEMS RESEARCH, 2022, 205
[32] Development of the self-learning machine for creating models of microprocessor of single-phase earth fault protection devices in networks with isolated neutral voltage above 1000 V
Utegulov, B. B.
Utegulov, A. B.
Meiramova, S.
INTERNATIONAL CONFERENCE ACTUAL PROBLEM OF ELECTROMECHANICS AND ELECTROTECHNOLOGY, 2018, 313
[33] Ground Fault in Medium-Voltage Power Networks with an Isolated Neutral Point: Spectral and Wavelet Analysis of Selected Cases in an Example Industrial Network Modeled in the ATP-EMTP Package
Kulinski, Krzysztof
Heyduk, Adam
ENERGIES, 2024, 17 (07)
[34] New standard for electrical grid reliability and energy efficiency. Commercially available Fault Current Limiters enable cost-effective connection of generation and distributed renewable energy sources to transmission, distribution and industrial networks
Garbi, Uri
Pannu, Mohinder
2015 3RD INTERNATIONAL CONFERENCE ON ELECTRIC POWER EQUIPMENT - SWITCHING TECHNOLOGY (ICEPE-ST), 2015, : 226 - 228

← 1 2 3 4 →