1 / 21

ELECTRIC TRACTION SYSTEMS

Prepared By :. ELECTRIC TRACTION SYSTEMS. 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. MOTIVATION. Traction system, its classification and nomenclature.

parchibald
Download Presentation

ELECTRIC TRACTION SYSTEMS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Prepared By : ELECTRIC TRACTION SYSTEMS

  2. 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 MOTIVATION

  3. Traction system, its classification and nomenclature. Power Supply in Electric Traction (AC and DC systems). Traction motors used. Control of traction motors. Braking. TOPICS TO BE DISCUSSED

  4. TRACTION SYSTEM, ITS CLASSIFICATION AND NOMENCLATURE

  5. Traction - locomotion on the rails (driving force - steam or electric drive) Classification of Traction Systems: > Non-Electric > Electric - receive electricity externally - self contained locomotives INTRODUCTION

  6. 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.) NOMENCLATURE IN INDIAN RAILWAYS Name consists of four parts e.g. WDP2: Diesel-Electric Passenger train running on broad gauge A  AC Traction D  Diesel-Electric Traction (Not DC Traction) P  Passenger G  Goods M Mixed (Passenger and Goods) S  Shunting W  B.G. Y  M.G. Z  N.G.

  7. 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 RAILWAY SERVICES 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

  9. POWER SUPPLY IN ELECTRIC TRACTION (AC AND DC SYSTEMS)

  10. POWER SUPPLY IN ELECTRIC TRACTION • Conductor Rail System • Overhead System Contact strips Horn Pantograph arm Fig: Pantograph and its parts

  11. OVERHEAD LINE CATENARY

  12. TYPES OF OVERHEAD CATENARY

  13. CONTROLOFTRACTION MOTORS

  14. CONTROL OF DC TRACTION MOTORS • Series-Parallel Control • Rheostatic Control

  15. Field Weakening Method CONTROL OF DC TRACTION MOTORS (Contd.) • Diesel-Electric Locomotive Control

  16. Rheostatic Control Pole-Changing Control Cascade Control Combination of Cascading and Pole-Changing Control CONTROL OF AC INDUCTION MOTOR

  17. BRAKINGOFTRACTION MOTORS

  18. Electrical Braking - Plugging - Rheostatic Braking - Regenerative Braking Mechanical Braking - Compressed Air Brake - Vacuum Brake - Magnetic Track Brake BRAKING

  19. REGENERATIVE BRAKING

  20. Multiple Unit Traction System (EMU, DMU) Driving force – from multiple units EMU – suburban railway transport Rheostatic Control ADVANCED TRACTION SYSTEMS

  21. Advanced technologies – Magnetic Levitation used for ultra high speed trains Electric traction – economical, easy and safe CONCLUSION ANY QUESTIONS ???

More Related