Dual-mode Locomotives: The Railways’ Future

Almost everyone went by train, and in some countries, such as India, it is the only way to travel great distances. You may have noticed that the locomotive of the train is either diesel or electric. But did you know that there is another sort of locomotive that has both a diesel and an electric engine?

Hello and welcome to Engineering Master. In this post, we will go over all there is to know about a rail locomotive that is a hybrid of an electric and a diesel engine known as a Dual Mode locomotive or electro-diesel locomotive.

Dual-mode Locomotives

There are two types of locomotives used on railways. There are two types of locomotives: diesel locomotives and electric locomotives. Diesel locomotives are utilized practically everywhere since they generate their own electricity. Electric locomotives, on the other hand, receive power from overhead cables via pantograph and process the power to power the locomotive. As we all know, it is impossible to install overhead cables everywhere (eg. in desert and mountain areas). Many lines with no overhead cables require railways to switch from electric to diesel locomotives. It takes a long time and a lot of effort.

To address this issue, a third type of rail engine was designed (known as dual mode locomotive). They are essentially a modified diesel locomotives with a pantograph on one side and a diesel generator on the other.

For a better understanding, please read our prior articles on diesel locomotives and electric locomotives.

The electricity required to run a diesel locomotive is generated within the locomotive. External sources of power are not used. In the case of an electric locomotive, however, power is received from overhead cables via the pantograph. The collected electricity is converted and rectified, and so drives the traction motors. Dual mode locomotives operate one engine at a time since it is difficult to run both engines simultaneously because few components are shared by both.

Because both electric and diesel engines are housed inside a locomotive, it becomes quite hefty. To reduce weight, a few changes are made to the locomotive, such as the use of stainless steel, a limited capacity diesel tank, and so on.

Dual mode locomotives are being produced by locomotive manufacturers worldwide, including Siemens, ABB, and Bombardier, and are currently in use in various parts of Africa, Europe, and North America. Indian Railways intends to run it by 2019.

It offers numerous advantages, which is why it is employed in many areas. It includes reducing locomotive and rake detention time at traction change sites, requiring fewer personnel, being useful when overhead cables are damaged due to natural disasters, and so on.

Credit for the information goes to the Research Design and Standards Organization, Indian Railways, and the iGyankosh YouTube channel.

About Israel Ashaolu 2090 Articles
Israel Ashaolu is a graduate of electrical and electronic from Niger state Polytechnic. Am an article writter and the owner of techedgeict.com

Be the first to comment

Leave a comment