Power supply reliability analysis and improvement measures of regional power grid

2008 ◽  
Author(s):  
Gong Jianping ◽  
Wu Guopei ◽  
Luo Zhenhai
Keyword(s):  
Reliability Analysis ◽  
Power Supply ◽  
Power Grid ◽  
Regional Power ◽  
Improvement Measures ◽  
Supply Reliability

The Principle and Application of AC Voltage Withstand Test for GIS without Power Cut

2014 ◽  
Vol 651-653 ◽  
pp. 1113-1116
Author(s):  
Qian Wang ◽  
Ying Kai Long ◽  
Gao Lin Wu ◽  
Qian Bo Xiao
Keyword(s):  
Power Supply ◽  
Power Grid ◽  
Test Method ◽  
Gas Insulation ◽  
Tremendous Impact ◽  
Supply Reliability

In order to check whether there are defects in GIS (gas-insulation-switchgear), it is necessary to do AC voltage withstand test before putting into operation. According to the standards, when doing AC voltage withstand test after GIS expansion or maintenance, the original neighboring parts should be power cut and grounded. For the double bus substation,it means that the whole substation should be power cut, which will decrease the power supply reliability of the grid and have a tremendous impact on the power grid To solve the problem, this paper presents a new AC voltage withstand test method for GIS without power cut, and explains principles and field applications of this method.

scholarly journals The impact of selected variants of remote control on power supply reliability indexes of distribution networks

2021 ◽  
Author(s):  
Jacek Kozyra ◽  
Zbigniew Łukasik ◽  
Aldona Kuśmińska-Fijałkowska ◽  
Paweł Kaszuba
Keyword(s):  
Remote Control ◽  
Power Supply ◽  
Local Governments ◽  
Energy Supply ◽  
Service Sector ◽  
Power Grid ◽  
Distribution Networks ◽  
Distribution Company ◽  
The Impact ◽  
Supply Reliability

AbstractEnsuring reliability and continuity of energy supply is the main goal of local governments and distribution companies. The continuity of energy supply means capability of a power grid to supply agreed amount of energy, of specific quality, without power cuts. The expectations concerning the quality of supplied energy and ensuring its continuity are constantly growing, and any power cuts have significant impact on comfort of life and manufacturing and service sector. To increase reliability of energy supply and improve condition of a power grid in the distribution companies, the works are conducted to increase power supply reliability indexes.The main goal of this publication is to present a problem of discontinuity of energy supply and actions aiming at improvement of power supply reliability indexes. An analysis of discontinuity of energy supply presented in the article is based on data obtained from a selected department of a distribution company. Based on actual data, the impact of location of remote-controlled controllers on the value of SAIDI and SAIFI was presented. Four variants of remote control on the sequence of a medium-voltage cable line were analysed.

scholarly journals A method for choosing the optimal quantity of short-circuit indicating devices to enhance power supply reliability

2019 ◽  
Vol 124 ◽  
pp. 02007
Author(s):  
D. Köppen ◽  
O. V. Vladimirov ◽  
T. A. Musaev ◽  
O. V. Fedorov
Keyword(s):  
Mathematical Model ◽  
Boundary Conditions ◽  
Power Supply ◽  
Short Circuit ◽  
Power Grid ◽  
Problem Solution ◽  
Optimization Task ◽  
Optimal Quantity ◽  
Supply Reliability

This article considers a method for solving the problem of choosing the optimal quantity of short-circuit indicating devices for providing a required reliability of the 6(10) kV distribution power grid. Compatibility of the equipment powered was taken into account. An outcome of the problem solution became a mathematical model; an optimization task, limiting and boundary conditions were formulated.

Sign in / Sign up

Export Citation Format

Share Document