ฝัง
- เผยแพร่เมื่อ 19 ก.ย. 2024
- A traction substation, traction current converter plant or traction power substation (TPSS) is an electrical substation that converts electric power from the form provided by the electrical power industry for public utility service to an appropriate voltage, current type and frequency to supply railways, trams (streetcars) or trolleybuses with traction current.
systems can be used to convert three-phase 50 Hz or 60 Hz alternating current (AC) for the supply of AC railway electrification systems at a lower frequency and single phase, as used by many older systems,
railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electric railways use either electric locomotives (hauling passengers or freight in separate cars), electric multiple units (passenger cars with their own motors) or both. Electricity is typically generated in large and relatively efficient generating stations, transmitted to the railway network and distributed to the trains. Some electric railways have their own dedicated generating stations and transmission lines, but most purchase power from an electric utility. The railway usually provides its own distribution lines, switches, and transformers.
Power is supplied to moving trains with a (nearly) continuous conductor running along the track that usually takes one of two forms: an overhead line, suspended from poles or towers along the track or from structure or tunnel ceilings, or a third rail mounted at track level and contacted by a sliding "pickup shoe". Both overhead wire and third-rail systems usually use the running rails as the return conductor, but some systems use a separate fourth rail for this purpose.
In comparison to the principal alternative, the diesel engine, electric railways offer substantially better energy efficiency, lower emissions, and lower operating costs. Electric locomotives are also usually quieter, more powerful, and more responsive and reliable than diesels. They have no local emissions, an important advantage in tunnels and urban areas. Some electric traction systems provide regenerative braking that turns the train's kinetic energy back into electricity and returns it to the supply system to be used by other trains or the general utility grid. While diesel locomotives burn petroleum, electricity can be generated from diverse sources, including renewable energy.[1] Historically concerns of resource independence have played a role in the decision to electrify railway lines. The landlocked Swiss confederation which almost completely lacks oil or coal deposits but has plentiful hydropower electrified its network in part in reaction to supply issues during both World Wars
Six of the most commonly used voltages have been selected for European and international standardisation. Some of these are independent of the contact system used, so that, for example, 750 V DC may be used with either third rail or overhead lines.
There are many other voltage systems used for railway electrification systems around the world, and the list of railway electrification systems covers both standard voltage and non-standard voltage systems.
The permissible range of voltages allowed for the standardised voltages is as stated in standards BS EN 50163[9] and IEC 60850.[10] These take into account the number of trains drawing current and their distance from the substation.
Electrification system Voltage
Min. non-permanent Min. permanent Nominal Max. permanent Max. non-permanent
600 V DC 400 V 400 V 600 V 720 V 800 V
750 V DC 500 V 500 V 750 V 900 V 1,000 V
1,500 V DC is used in Japan, Indonesia, Hong Kong (parts), Republic of Ireland, Australia (parts), France (also using 25 kV 50 Hz AC), New Zealand (Wellington), Singapore (on the North East MRT Line), the United States (Chicago area on the Metra Electric district and the South Shore Line interurban line and Link light rail in Seattle, Washington). In Slovakia, there are two narrow-gauge lines in the High Tatras (one a cog railway). In the Netherlands it is used on the main system, alongside 25 kV on the HSL-Zuid and Betuwelijn, and 3000 V south of Maastricht. In Portugal, it is used in the Cascais Line and in Denmark on the suburban S-train system (1650 V DC).
In the United Kingdom, 1,500 V DC was used in 1954 for the Woodhead trans-Pennine route (now closed); the system used regenerative braking, allowing for transfer of energy between climbing and descending trains on the steep approaches to the tunnel. The system was also used for suburban electrification in East London and Manchester, now converted to 25 kV AC. It is now only used for the Tyne and Wear Metro. In India, 1,500 V DC was the first electrification system launched in 1925 in Mumbai area. Between 2012 and 2016, the electrification was converted to 25 kV 50 Hz AC which is the countrywide systems.
#traction
#substation
#26kv
#SSE
#Engineer
#railway
#transformer
#rectifier
Bahut achha sir
Very good sir 👍
Thanks dear .....
Great sir,
But don't take that much risk,
Thank you!
Nice sir
Nice explain
Sir ji only hv cb ka operation kaise karte hai please aap bta sakte hai
Nice info
Sir traction substation no single line diagram mokalo ne please 🙏🙏
Sir TSS me fault level kya hota 🙏 please jankari de
😍🤗😍🤗😍🤗
Pt ka full form batao
Kaha se h aap
😎
Sir tss ban raha he said me myne iti elactric course kiya hua he to kya job pa sakte he local me
control room ke bare me ek video banayiye
Ok we'll make that video
@@Way4study bhai may 2 months se 24 hours kanpur tss job kar raha hu
please ek video control room full details 🙏
@@mantalboyvinaykumar7909myne iti elactric course Kiya hua he said me TSS ban Raha he job pa sakte he kya dost
Hi sir
Bhai ap kaha se hai
इलाहाबाद (प्रयागराज)
Sir sirf 2 phase hi q liye hai 3 phase q nahi liye
Sir rvnl ka tsss ka selary kitne he
30000 se 40000 hoti hai
Tss ssp Mai job parmanent rahega kya
Ha kyu nhi rahega
If you ll try hard ....
Pir se video samjhaye
BM operate Karo sir manually
Will operate in next video
Please reply
send me your resume on this email id I will check and update you support@way4study.in