THREE PHASE SLIP RING INDUCTION MOTOR has been used in DELHI METRO. Dc series motor is ideal for traction but the maintenance cost of which is very high also needs the conversion and smoothening of AC voltages.IM has less maintenance,high starting torque, cheap etc.
Do Metro trains have engines?
The trains have no engine line of metro trains and will be driven by a self-propulsion module sans a separate locomotive and the train can run with the speed of up to 160 km per hour, with advanced technical features for enhanced quick acceleration. … The train can be driven from both sides like metro trains.
Which current is used in Metro?
Most metros are operated with dc power either at 750V with third rail or 1.5kV with third rail/overhead contact line. Operating metros on 25kV ac overhead is a relatively new phenomenon and there is a lot of debate about the value of this adaption due to the importance of traction power to a system’s performance.
What is the fuel used in Metro trains?
Metro trains run on Electricity. OverHead Equipment (OHE) wire or third rail is used for it. So directly there is no fuel required for metro train but indirectly most commonly we use coal to produce electricity in thermal power plants or nuclear energy in nuclear power plants.
Is Delhi Metro DC or AC?
decided to adopt 25 KV AC Traction. This metro has been constructed on a private basis by DLF (now taken over by IL&FS). Given the short length and lower PHPDT of the Metro, the operator has adopted 750 V DC.
How many engines does Metro have?
Metro train is engineless train. The metro run through traction moter and operated on the cab. The traction moter is mounted on the bogie, the bogie is that portion where two axle mounted. This traction moter help to run metro train.
Why train 18 is engine less?
7. Train 18 is driven by a self-propulsion module sans a separate locomotive (engine). 8. The self-propelled train, fitted with CCTV cameras, would have two executive compartments in the middle with 52 seats each, whereas trailer coaches would have 78 seats each.
How does Metro train get power?
The train has dynamic braking or electric braking systems and this enables energy generation during braking. … The kinetic energy so produced is converted into electrical energy which is called regeneration. POWER TRAIN. Daily, the power consumed by the Byappanahalli-MG road stretch is 23,051 units.
What is Metro Scada?
Metro s Automation Group can provide a customized SCADA (Supervisory Control And Data Acquisition) system that saves time and money by eliminating the need to manually collect data.
How does a metro train run?
On subway trains, the third rail is the source of the electrical delivery system. The same power is delivered to light-rail lines such as the Blue, Gold, Green and Expo lines via an overhead catenary system. No petroleum gas for the trains. … Like petroleum gasoline and compressed natural gas, Metro buys it.
Is Metro train electric train?
Although initially the trains of what is now the London Underground were drawn by steam engines, virtually all metro trains, both now and historically, use electric power and are built to run as multiple units.
Do trains run on AC or DC?
Railways and electrical utilities use AC for the same reason: to use transformers, which require AC, to produce higher voltages. The higher the voltage, the lower the current for the same power, which reduces line loss, thus allowing higher power to be delivered.
Does train use charcoal?
The expansion of steam pushes the pistons that connect to the driving wheels that operate the locomotive. Coal or oil are the fuels used for heating the water (coal is shown in the diagram). Coal is carried in the tender of the locomotive and is hand-shoveled by the fireman into the firebox.
How many metro are there in India?
There are currently thirteen operational rapid transit (popularly known as ‘metro’) systems in thirteen cities across India. With Delhi Metro being the largest metro system which connects to few other nearby cities in the National Capital Region.
What is 3rd rail system?
Third-rail system is a means of providing electric traction power to trains, and the system uses an additional rail which is known as “conductor rail” for its work. The conductor rail is placed on the sleeper ends mostly located outside of the running rails. However, a central conductor rail is also used in some cases.
When was Metro started in India?
Ø 1972 – ON 1ST JUNE, THE MASS RAPID TRANSIT SYSTEM PROJECT WAS SANCTIONED. Ø 1972 – FOUNDATION STONE OF METRO RAILWAY KOLKATA LAID ON 29THDEC. Ø 1984 – ON 24TH OCTOBER, METRO RAILWAY, KOLKATA, INDIA’S FIRST METRO WAS COMMISSIONED.