This document discusses electric traction systems used in railways. It covers topics such as the classification of traction systems as either non-electric or electric. Within electric systems, there are those that receive electricity externally and self-contained locomotives. The document also discusses the nomenclature used in Indian Railways to classify trains based on gauge type, traction mode, usage, and model number. The types of railway services and track gauges are defined. The different systems for electrifying tracks are presented along with details on power supply systems, traction motors, and their control. The various braking methods like electrical, mechanical, and regenerative braking are also summarized.
Extra high voltage long ac transmission linesShivagee Raj
From economical point of view designing of transmission line system is very important in the electricity supply system. Extra High Voltage Transmission Lines are best suited for transmission of bulk power.
Basics of electric traction system .
Covering technologies used and their use in Indian railway.
Types of traction systems.
Working basics of various types.
Historical analysis to some extent.
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
This is to certify that the research entitled ((Performance of sustainable Mortar using Calcined clay, fly ash, Limestone powder and reinforced with hybrid fiber)) have been conducted at our Technical Engineering College and there is No funding resource for this research from our University.
This is the presentation I gave during my 8th sem of Electrical Engineering course at NIT Durgapur. It is here for you guys. Make life easier. Cheers! For more information mail me: sdey.enteract@gmail.com
Extra high voltage long ac transmission linesShivagee Raj
From economical point of view designing of transmission line system is very important in the electricity supply system. Extra High Voltage Transmission Lines are best suited for transmission of bulk power.
Basics of electric traction system .
Covering technologies used and their use in Indian railway.
Types of traction systems.
Working basics of various types.
Historical analysis to some extent.
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
This is to certify that the research entitled ((Performance of sustainable Mortar using Calcined clay, fly ash, Limestone powder and reinforced with hybrid fiber)) have been conducted at our Technical Engineering College and there is No funding resource for this research from our University.
This is the presentation I gave during my 8th sem of Electrical Engineering course at NIT Durgapur. It is here for you guys. Make life easier. Cheers! For more information mail me: sdey.enteract@gmail.com
Similar to 106704504-Electric-Traction-System.ppt (20)
Data Centers - Striving Within A Narrow Range - Research Report - MCG - May 2...pchutichetpong
M Capital Group (“MCG”) expects to see demand and the changing evolution of supply, facilitated through institutional investment rotation out of offices and into work from home (“WFH”), while the ever-expanding need for data storage as global internet usage expands, with experts predicting 5.3 billion users by 2023. These market factors will be underpinned by technological changes, such as progressing cloud services and edge sites, allowing the industry to see strong expected annual growth of 13% over the next 4 years.
Whilst competitive headwinds remain, represented through the recent second bankruptcy filing of Sungard, which blames “COVID-19 and other macroeconomic trends including delayed customer spending decisions, insourcing and reductions in IT spending, energy inflation and reduction in demand for certain services”, the industry has seen key adjustments, where MCG believes that engineering cost management and technological innovation will be paramount to success.
MCG reports that the more favorable market conditions expected over the next few years, helped by the winding down of pandemic restrictions and a hybrid working environment will be driving market momentum forward. The continuous injection of capital by alternative investment firms, as well as the growing infrastructural investment from cloud service providers and social media companies, whose revenues are expected to grow over 3.6x larger by value in 2026, will likely help propel center provision and innovation. These factors paint a promising picture for the industry players that offset rising input costs and adapt to new technologies.
According to M Capital Group: “Specifically, the long-term cost-saving opportunities available from the rise of remote managing will likely aid value growth for the industry. Through margin optimization and further availability of capital for reinvestment, strong players will maintain their competitive foothold, while weaker players exit the market to balance supply and demand.”
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
Show drafts
volume_up
Empowering the Data Analytics Ecosystem: A Laser Focus on Value
The data analytics ecosystem thrives when every component functions at its peak, unlocking the true potential of data. Here's a laser focus on key areas for an empowered ecosystem:
1. Democratize Access, Not Data:
Granular Access Controls: Provide users with self-service tools tailored to their specific needs, preventing data overload and misuse.
Data Catalogs: Implement robust data catalogs for easy discovery and understanding of available data sources.
2. Foster Collaboration with Clear Roles:
Data Mesh Architecture: Break down data silos by creating a distributed data ownership model with clear ownership and responsibilities.
Collaborative Workspaces: Utilize interactive platforms where data scientists, analysts, and domain experts can work seamlessly together.
3. Leverage Advanced Analytics Strategically:
AI-powered Automation: Automate repetitive tasks like data cleaning and feature engineering, freeing up data talent for higher-level analysis.
Right-Tool Selection: Strategically choose the most effective advanced analytics techniques (e.g., AI, ML) based on specific business problems.
4. Prioritize Data Quality with Automation:
Automated Data Validation: Implement automated data quality checks to identify and rectify errors at the source, minimizing downstream issues.
Data Lineage Tracking: Track the flow of data throughout the ecosystem, ensuring transparency and facilitating root cause analysis for errors.
5. Cultivate a Data-Driven Mindset:
Metrics-Driven Performance Management: Align KPIs and performance metrics with data-driven insights to ensure actionable decision making.
Data Storytelling Workshops: Equip stakeholders with the skills to translate complex data findings into compelling narratives that drive action.
Benefits of a Precise Ecosystem:
Sharpened Focus: Precise access and clear roles ensure everyone works with the most relevant data, maximizing efficiency.
Actionable Insights: Strategic analytics and automated quality checks lead to more reliable and actionable data insights.
Continuous Improvement: Data-driven performance management fosters a culture of learning and continuous improvement.
Sustainable Growth: Empowered by data, organizations can make informed decisions to drive sustainable growth and innovation.
By focusing on these precise actions, organizations can create an empowered data analytics ecosystem that delivers real value by driving data-driven decisions and maximizing the return on their data investment.
2. MOTIVATION
• Sheer size and roaring sound.
• Use of electronics to bring down distance
and time.
• A fascination for electrical students
- Use of traction motors
- Speed Control
- Braking
3. TOPICS TO BE DISCUSSED
• Traction system, its classification and
nomenclature.
• Power Supply in Electric Traction (AC and
DC systems).
• Traction motors used.
• Control of traction motors.
• Braking.
5. INTRODUCTION
• Traction - locomotion on the rails (driving
force - steam or electric drive)
• Classification of Traction Systems:
> Non-Electric
> Electric
- receive electricity externally
- self contained locomotives
6. NOMENCLATURE IN INDIAN
RAILWAYS
Name consists of four parts
e.g. WDP2: Diesel-Electric Passenger train running on broad gauge
W/Y/Z
(Gauge
type)
A/D
(Mode of
traction)
P/G/M/S
(What for it
is used)
2/4/6/2C
(Model
No.)
W B.G.
Y M.G.
Z N.G.
A AC Traction
D Diesel-Electric
Traction (Not DC Traction)
P Passenger
G Goods
M Mixed (Passenger and Goods)
S Shunting
7. TYPES OF RAILWAY SERVICES
Main line service
City service or urban service
Sub-urban service
Type of Gauge Gauge Width
1. Standard Gauge or Broad Gauge (B.G) 1.676 m
2. Meter Gauge (M.G) 1.0 m
3. Narrow Gauge (N.G) 0.762 m
4. Light Gauge (L.G) 0.610 m
TYPES OF GAUGES USED
8. SYSTEMS OF TRACK
ELECTRI-FICATION
Direct current system
Single phase low frequency a.c system
Single phase high frequency a.c system
Three phase a.c system
Composite system
- Single phase to Three phase
- Single Phase to Direct Current
20. ADVANCED TRACTION
SYSTEMS
• Multiple Unit Traction System (EMU,
DMU)
• Driving force – from multiple units
• EMU – suburban railway transport
• Rheostatic Control
21. CONCLUSION
• Advanced technologies – Magnetic
Levitation used for ultra high speed trains
• Electric traction – economical, easy and
safe
ANY QUESTIONS ???
