auto-reclosure
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This document discusses auto-reclosing, which is a protective relay scheme used on overhead transmission lines. It aims to quickly reclose circuit breakers after faults to restore power supply while avoiding permanent faults. The document describes the different types of faults, steps for auto-reclosing installation and operation, schemes of operation including live bus/dead line charging. It also discusses factors to consider like protection characteristics, circuit breaker characteristics and types of auto-reclosing like medium voltage and high voltage auto-reclosing. Benefits of auto-reclosing include minimizing power interruptions and maintaining system stability and integrity.
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Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, SerbiaInternational Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
22CYT12-Unit-V-E Waste and its Management.ppt
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Recycled Concrete Aggregate in Construction Part III
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Low power architecture of logic gates using adiabatic techniques
The growing significance of portable systems to limit power consumption in ultra-large-scale-integration chips of very high density, has recently led to rapid and inventive progresses in low-power design. The most effective technique is adiabatic logic circuit design in energy-efficient hardware. This paper presents two adiabatic approaches for the design of low power circuits, modified positive feedback adiabatic logic (modified PFAL) and the other is direct current diode based positive feedback adiabatic logic (DC-DB PFAL). Logic gates are the preliminary components in any digital circuit design. By improving the performance of basic gates, one can improvise the whole system performance. In this paper proposed circuit design of the low power architecture of OR/NOR, AND/NAND, and XOR/XNOR gates are presented using the said approaches and their results are analyzed for powerdissipation, delay, power-delay-product and rise time and compared with the other adiabatic techniques along with the conventional complementary metal oxide semiconductor (CMOS) designs reported in the literature. It has been found that the designs with DC-DB PFAL technique outperform with the percentage improvement of 65% for NOR gate and 7% for NAND gate and 34% for XNOR gate over the modified PFAL techniques at 10 MHz respectively.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
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KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
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DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
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auto-reclosure
- 1. MINI PROJECT ON AUTO-RECLOSING PRESENTED BY K.Sandeep (10RC1A0228) Patan. Rafi(10RC1A0247) B.Shiva (10RC1A0203) M.Uday teja(10RC1A0232) Under the esteemed guidance of Mr.R.Laveen,M.Tech(Asst.Prof). 1
- 2. AUTO-RECLOSING • it is placed on over head transmission line and nearer to the CB . • It is also one of the protective relay. 2
- 3. What is Auto – Reclosing ? 3
- 4. Introduction to auto-reclosing scheme 4
- 5. Types Of Faults • Transient Faults • Semi Permanent faults • Permanent Faults Utility Substation Customers 5
- 6. 6 STEPS TO BE FOLLOWED IN AUTORECLOSING Visual Check Check of the Power Supply Test of the Auto-re-closure settings Functional Testing (involving operation of Protective Relays & Circuit Breaker(s) INSTALLATION OPERATION
- 7. Scheme Of Operation • Live bus Dead Line Charging • Other end closing under synchronism check relay • Live bus Live line charging 7
- 8. Types of Auto Reclosing 1. Medium voltage auto-reclose • Aim of continuity of supply • the obvious advantages are continuous supply except for short duration when tripping and re-closure operations are being performed. • high speed protection decreases the amount of damage incurred and thus increases the probability of auto reclosure. 2. High voltage auto-reclose • main considerations are of stability and synchronizing. • the fault levels associated are extremely high. • High speed re-closure in high voltage circuits improves the stability to a considerable extent on single-circuit ties.
- 9. FACTORS TO BE CONSIDERED FOR AUTO RECLOSING SYSTEM • Protection Characteristics • De- Ionization of Fault Arc • Circuit Breaker Characteristics • Reclaim Time • Number of Shots 9
- 10. SINGLE PHASE AUTO – RECLOSING ADVANTAGES:- •Maintenance of System Integrity • Reduced switching overvoltage due to reclosing • Reduced shock to generators. • Sudden changes in mechanical output are less • Longer De – ionization time DISADVANTAGE:- 10
- 11. 1. Densely interconnected systems. Where the Loss of a single line is unlikely to cause loss of synchronism between two ends 2. Dead Time is allowed to be long enough for any power swings due to fault and tripping allowed to decay before reclosing a) Less shock to system than with high speed A/R b) Problems of arc de – ionization times, and circuit breaker operating characterstics are eliminated. Delayed Auto-Reclose Application 11
- 12. Operating feature of Auto reclosing schemes • Dead Timer • Anti Pumping Devices • Reclaim timer • CB Lockout • Manual Closing • Multi Shot Scheme 12
- 13. Auto - Reclose Blocking • Receipt of transfer Trip • Manual Trip • Breaker failure • Three phase Fault • Faults On Buses • Under frequency/ Under voltage load shedding trips 13
- 14. Benefits Of Auto - Reclosing • Minimizing the interruption of supply. • Maintenance of system stability and Synchronism. • Minimum Outage and least expenditure of manpower. • Ability to run substation unattended. 14
- 15. CONCLUSION • Fast clearing of EHV faults is essential to maintain power quality in an area, because events on the EHV system affect the underlying transmission and distribution systems. Benefits of successful high speed reclosing on EHV overhead transmission lines are: improved system stability, reducing the duration of fault arc, respectively disturbance time, and economics in system design. 15
- 16. Thank you 16