1 / 23

Coaching stock

Coaching stock. Manufacturing of coaching stock. Sanction (Pink book, RSP) (Nodal directorate-PU) Issue of Particular specification including Electrical part and layout plan by RDSO General layout Type of shell and Bogie Type of key materials and systems (brakes, electrics etc)

plummer
Download Presentation

Coaching stock

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. Coaching stock

  2. Manufacturing of coaching stock • Sanction (Pink book, RSP) (Nodal directorate-PU) • Issue of Particular specification including Electrical part and layout plan by RDSO • General layout • Type of shell and Bogie • Type of key materials and systems (brakes, electrics etc) • Preparation of detailed drawings by Mechanical design of PU

  3. Manufacturing of coaching stock • Preparation of detailed drawings by Electrical design of PU • Issue of material schedule for procurement of materials • Setting up jigs and fixtures • Manufacturing of prototype • Tests and trials in coordination with RDSO • Issue of speed certificate by RDSO • CRS sanction

  4. Head On Generation (HOG) Coaches

  5. SELF GENERATION (SG) SYSTEM • Generation is AC which after AC-DC rectification becomes 110 Volt DC (with battery back up) for lights & fans. For AC (RMPU) ,it gets converted into 415 V, 3 ph through Inverters. • END-ON-GENERATION (EOG) SYSTEM • 750 Volt Generation from DG sets placed in power cars at the ends. HEAD-ON-GENERATION (HOG) SYSTEM • Power Supply from OHE through LOCO Transformer

  6. SELF GENERATION SYSTEMS • Axle driven under slung alternator with V - belts • 110V DC regulated at different speeds through RRU • Battery back up during standing/slow movement of train •   2X25KVA, 110 V DC/415 V inverters for AC load. • 110 V DC supply for lights and fans

  7. MOUNTING ARRANGEMENT OF AXLE DRIVEN ALTERNATOR

  8. SGAC LAYOUT BeltPulley 25 kVA ACCoach Inverter ACControlPanel ACPackageUnit Pulley mounted on Wheel 3 PhaseACAlternator Rectifier cum Regulator Unit 25 kVA ACCoachInverter ACControlPanel ACPackageUnit Self Generation System Battery Light & fans

  9. Batteries for TL & AC • Non-AC Coaches • 120 Ah- 110 V DC (nominal) , 18 Mono blocks of 6 volt each • Air Conditioned coaches • 1100/800 Ah (VRLA/low maintenance)- 110 V DC: 56 cells of 2 Volt each. • Alternator for TL & AC • Non AC- 4.5 kW • AC (RMPU)- 25 kW, AC (US)- 18 kW

  10. ADVANTAGES OF SG SYSTEM • Flexibility in rake formation • Independent of mode of traction • No separate power car required  •   Failure in one coach do not affect other coach •  Feed extension is possible in emergency from adjacent coach

  11. DISADVANTAGES OF SG SYSTEM • Load restricted to 2X25kw per coach • Bulky 1100 Ah(AC)/ 120Ah (Non-AC) coach battery required during standby / slow movement •   No standby alternator/battery •  Extensive maintenance due to under-slung alternator, battery, axle-pulley •  Poor system efficiency 54%  

  12. END-ON-GENERATION SYSTEM • Rajdhani, Shatabdi type fully AC trains with large power requirements. • Two power cars each with 2X250 kW (new high Capacity ) Diesel alternator sets. • Power fed by two feeders 750V 3- ph by I V couplers step down to 415V 3 ph for AC by 50/60 kVA transformers • 110V AC lighting and fans by 415/110 AC transformer

  13. Advantages of EOG system • No restriction of Load due to high capacity power cars • Does not require bulky batteries, alternators •  Standby DA sets •   Independent of mode of traction •   Less maintenance required due to elimination of under slung alternator, battery, axle pulley etc. • Higher system efficiency

  14. Disadvantages of EOG system • Flexibility in rake formation not possible •   High cost of energy due to high fuel cost •   Noise and smoke pollution from power car •   Passenger capacity reduced due to provision of power car

  15. HEAD-ON GENERATION SYSTEM (HOG) • Power supply received from loco or tapped from OHE in power car • Cost effective, reliable and energy efficient • Elimination of heavy under slung alternator in SG coaches and DA sets in EOG power car avoiding noise and smoke pollution

  16. HOG SYSTEM • Single phase power from OHE through Loco/ separate Pantograph in power car. •  Inverter (single phase to 3 phase) can be bulk mounted on/under power car or individual coach.

  17. TL & AC Maintenance

  18. Maintenance schedules • Trip maintenance, under gear and safety checking • Monthly maintenance : Schedule ‘A’ • Quarterly maintenance : Schedule ‘B’ • IOH after 9(conventional)/18 Months (LHB) : Schedule ‘C’ • Periodical Overhauling (POH) : once in 18 (conventional)/36 Months (LHB)

  19. Maintenance philosophy • At present all TL items like alternators, regulators, fans, lights, battery are maintained departmentally. • Under- slung type AC Coaches all equipment like compressors, condenser, evaporator, panel are maintained departmentally. • Contract with OEM for 4-monthly schedule of inverters. • Comprehensive service contract for RMPU for Trip, monthly, 3-monthly & Periodic overhaul with RDSO approved sources. • Selective outsourcing of ACCA.

  20. THANKS

More Related