scholarly journals The Effect of Charcoal on the Improvement of Grounding Resistance as a Soil Treatment in Reducing Grounding Resistance

2021 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Partaoanan Harahap Partaoanan Harahap ◽  
Waleed Khalid Ahmed Al-Ani
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Voltage Drop ◽  
Electronic Equipment ◽  
System Stability ◽  
Coconut Shell ◽  
Lightning Strikes ◽  
Grounding Resistance ◽  
Technological Developments ◽  
Conductive Properties

Current technological developments are very competitive with each other, both in electric power distribution systems or electronic equipment. Disturbances that occur are usually caused by short circuits and ground disturbances, or lightning strikes. These disturbances will result in a voltage drop or increase in voltage, which results in decreased system stability, endangers people's lives, and can damage electronic equipment. Coconut Shell Charcoal has a lower resistivity value than soil and has a larger pore structure to absorb more water, and has conductive properties. The results obtained from the comparison using dry coconut shell charcoal and wet coconut shell charcoal show that measurements using wet coconut shell charcoal are better (less resistance) than using dry coconut shell charcoal. Soil resistivity measurements will be much better at the maximum depth than the usual depth (110 cm), better than 10cm.

A Novel 4H-SiC Fault Isolation Device with Improved Trade-Off between On-State Voltage Drop and Short Circuit SOA

2012 ◽  
Vol 717-720 ◽  
pp. 1045-1048 ◽  
Author(s):  
Woong Je Sung ◽  
B.J. Baliga ◽  
Alex Q. Huang
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Voltage Drop ◽  
Short Circuit ◽  
Fault Isolation ◽  
Power Distribution Systems ◽  
Trade Off ◽  
Forward Voltage Drop ◽  
Isolation Device ◽  
Safe Operating

This paper aims to introduce a solid-state fault isolation device (FID) for the short circuit protection application in the power distribution systems. The key performance of a FID is to have a low on-state loss and a strong short circuit safe operating area (SCSOA). As a FID, a novel 15kV 4H-SiC field controlled diode (FCD) with a p+buried layer is proposed to provide an improved trade-off between the on-state forward voltage drop and the saturation current. Dynamic response to the fault and the application example of the proposed FCD are described in this paper.

scholarly journals A Chronological Literature Review of Electric Vehicle Interactions with Power Distribution Systems

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 3016
Author(s):  
Andrés Arias-Londoño ◽  
Oscar Danilo Montoya ◽  
Luis Fernando Grisales-Noreña
Keyword(s):  
Power Systems ◽  
Electricity Markets ◽  
Power Distribution ◽  
Distribution Systems ◽  
Demand Management ◽  
Distribution Networks ◽  
Power Grids ◽  
System Stability ◽  
Systematic Classification ◽  
Vehicle To Grid

In the last decade, the deployment of electric vehicles (EVs) has been largely promoted. This development has increased challenges in the power systems in the context of planning and operation due to the massive amount of recharge needed for EVs. Furthermore, EVs may also offer new opportunities and can be used to support the grid to provide auxiliary services. In this regard, and considering the research around EVs and power grids, this paper presents a chronological background review of EVs and their interactions with power systems, particularly electric distribution networks, considering publications from the IEEE Xplore database. The review is extended from 1973 to 2019 and is developed via systematic classification using key categories that describe the types of interactions between EVs and power grids. These interactions are in the framework of the power quality, study of scenarios, electricity markets, demand response, demand management, power system stability, Vehicle-to-Grid (V2G) concept, and optimal location of battery swap and charging stations.

scholarly journals Decision Making in Power Distribution System Reconfiguration by Blended Biased and Unbiased Weightage Method

2019 ◽  
Vol 8 (2) ◽  
pp. 20 ◽  
Author(s):  
Kamble ◽  
Vadirajacharya ◽  
Patil
Keyword(s):  
Decision Making ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Voltage Drop ◽  
Multiple Attribute Decision Making ◽  
Power Distribution System ◽  
Reliability Indices ◽  
Weighted Sum Method ◽  
Multiple Attribute

The term smart grid (SG) has been used by many government bodies and researchers to refer to the new trend in the power industry of modernizing and automating the existing power system. SGs must utilize assets optimally by making use of the information, like equipment capacity, voltage drop, radial network structure, minimizing investment and operating costs, minimizing energy loss and reliability indices, and so on. One way to achieve this is to re-route or reconfigure distribution systems (DSs). Distribution systems are reconfigured to choose a switching combination of branches of the system that optimize certain performance parameters of the power supply, while satisfying some specified constraints. In this paper, a blended biased and unbiased weightage (BBUW) multiple attribute decision-making (MADM) method is proposed for finding the compromised best configuration and compared it with other decision-making methods, such as the weighted sum method (WSM), weighted product method (WPM), and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. The BBUW method is implemented for two distribution systems, and the result obtained shows a good co-relationship between BBUW and other decision-making methods. Further weights obtained from the BBUW method are used for the WSM, WPM and TOPSIS methods for decision making. Examples of the distribution system are worked out in this paper to demonstrate the validity and effectiveness of the method.

scholarly journals Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Tanmay Jain ◽  
Debomita Ghosh ◽  
Dusmanta Kumar Mohanta
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Fault Location ◽  
Situational Awareness ◽  
Electronic Device ◽  
Distribution Networks ◽  
System Stability ◽  
System Integrity ◽  
Intelligent Electronic Device

AbstractPower distribution systems are profoundly inclined to disturbances like untimely switching of breakers & relays, sympathetic tripping, and uncertainties regarding fault location. Thus, system stability and reliability are greatly affected. In this way, situational awareness and system integrity are the crucial factors in developing power system security, as it empowers successful decision making & timely reaction by the operators to any disturbance and also maintaining continuity of power supply. This paper focuses on the enhancement of situational awareness by fault location through fault passage indicators (FPI) to improve nominal impedance-based methods in distribution networks. Also, the proposed method is validated by comparing it with Intelligent Electronic Device (IED) based fault location method. Further, simultaneous reconfiguration of the system is incorporated to maintain the continuity of supply. The analysis has been tested on IEEE 33 bus distribution system.

Malfunction Issue of SiC-SIT Based DC Circuit Breaker in 400V DC Power Distribution Systems for Data Centers

2012 ◽  
Vol E95.B (6) ◽  
pp. 1990-1996
Author(s):  
Seiya ABE ◽  
Sihun YANG ◽  
Masahito SHOYAMA ◽  
Tamotsu NINOMIYA ◽  
Akira MATSUMOTO ◽  
...  
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Data Centers ◽  
Circuit Breaker ◽  
Power Distribution Systems ◽  
Dc Power ◽  
Dc Circuit Breaker
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