You’ve probably wondered: What is electrical traction? What types are there? And what is its function? To answer these questions, read on. There’s a lot of confusing information out there. Fortunately, this article will give you the basics to know about this important technology. Here are the different types and their function. If you’re unfamiliar with electric traction, you can learn more about its functions and advantages in this article.
What Is Electric Traction
Electric traction is a type of electric drive that is commonly used in rail vehicles, trolley buses, and trams. It is a type of regenerative braking system in which the motion of the train generates electrical power that is fed back into the lines. Electric traction systems typically have a low frequency and characteristic voltage. This type of drive can be classified into three types: battery electric, AC power, and diesel.
Non-electric traction involves engine drives that use a steam engine or internal combustion system. The smoke and exhaust from these systems contribute to air pollution and global warming. Electric traction systems, on the other hand, use a battery or diesel fuel to create electricity. For this reason, many people prefer electric traction over other types. However, there are certain advantages to both kinds of traction systems. Let’s look at a few of these benefits and see how they differ.
What do you mean by electrical traction?
Electric traction refers to the use of electricity for moving a train or other vehicle. It is most commonly used in the transportation of people and materials, and there are two main types: single phase AC and direct current (DC). A train using an electric traction system is classified as either a main line or suburban train. The train is powered by an overhead cable to deliver electric current. The rails are connected to an overhead line that converts AC voltage into DC voltage.
Electric traction systems are more efficient than diesel engines, allowing them to operate with less terminal space and reduce gathering. An added benefit is that electric traction systems can use regenerative braking, which feeds 80% of the electrical energy back into the supply. Lastly, electric traction systems are much more reliable than AC, which means they require less maintenance. In general, this type of system is the preferred choice for railway systems.
What are the types of electric traction?
If you’re wondering: “What is electric traction?” you’re not alone. Electric traction systems are increasingly used in suburban and metro railways. While they have a similar purpose to train engines, they are different in important ways. These systems require large amounts of torque to drive the train, both during acceleration and start-up. AC traction systems run on a single phase of electricity, while DC traction systems use three phases of electricity.
The basic components of a modern traction system are based on AC and DC circuitry. AC stands for direct current and travels in a single direction along a conductor. DC, on the other hand, is alternating current, which changes direction very rapidly. Frequency is measured in Hertz (Hz) or cycles per second. AC series motors are typically fed with variable voltage and are highly efficient. Depending on the system, the voltage output can vary from half to three times that of a DC supply.
Early attempts to propel railroad vehicles with batteries date back to 1835. The first successful application of electric traction was in Berlin in 1879, and was later used to connect metropolitan and suburban areas. However, electrification did not become widespread in Europe until the 20th century. The United States is the most common place for electric traction, and the northeastern region is one of the most electrified areas. Once you know what makes these trains so efficient, you’ll be using them yourself!
What is the function of electric traction?
Electric traction drives have long relied on the DC motor. It consists of an armature (the set of coils around the central shaft) and fixed field windings. The fixed field windings are tightly wound coils located inside the motor case. The armature connects to the fixed field windings via brushes, which are spring-loaded contacts. The armature is a key part of the traction motor, and the commutator distributes terminations in a circular pattern.
While the number and types of electric locomotives are similar across countries, they differ in their design and function depending on the location and technology available at the time of installation. Many installations you see today were built more than a century ago, when electric traction was still in its infancy. However, their evolution has influenced the types of electric locomotives that are seen in many regions around the world today. In fact, many of the railway systems that exist today were once not electrified at all.
The power supply for the electrical motors used in traction systems is supplied by a stationary source. These sources can be overhead wires, third rails, DC batteries, or ultracapacitors. Various operating voltages are used to drive the electric motor. DC locomotives typically run between 600 and 3,000 volts. These locomotives require a frequent power supply. Despite their efficiency, some disadvantages of electric traction include:
What is electric traction and its advantages?
One of the main benefits of electric traction is its clean air. Unlike steam locomotives, it emits no smoke, no pollution, and no flue gasses. Moreover, it costs about 50 percent less to maintain. An electric locomotive does not require boilers or water depots. The power from the lines can be used in place of an additional generator. As such, there are fewer environmental problems associated with electric traction.
Another benefit of electric traction is its high traffic handling capacity. It also requires less terminal space, and requires less gathering. Another advantage is that it requires less mechanical braking, reducing maintenance costs. Electric locomotives also tend to start and stop faster than steam locomotives, which is advantageous for a subway or underground railway. Besides, they can run in a shorter period of time. And, because they are clean, they have less noise and less dust.
Compared to steam locomotives, electric locomotives have a lower centre of gravity, which makes them easier to negotiate curves. Electricity reduces wear on track rails and reduces weight/kW ratio. Despite these advantages, electric traction is uneconomical for light traffic. So, you might be wondering why you would even consider using it in your commute. However, these advantages are worth checking out.
What is electric traction Wikipedia?
Railway electric traction, or EV, refers to multiple locomotives and power systems. This technology has several advantages over steam traction, including quick acceleration and power. Different types of electrical traction systems have evolved since the early twentieth century. Direct Current (DC) traction systems draw their power from an overhead line or third rail. Other types of EVs draw their power from an underground rail. This article will discuss how EVs work and the benefits and drawbacks of each.
EVs also allow for regenerative braking. The electric motors act as brakes and generators, converting the motion of a train into electrical power. Because the trains use different types of electricity, descending locomotives can generate a large portion of the power needed to climb. In addition, AC power has a characteristic frequency and voltage. Some locomotives are equipped with multiple voltages, and some are dual-voltage. The American FL9 locomotive, for example, could use two electrical systems to power its cars.
What is electric traction motor?
The most commonly used form of traction motor is the DC motor. It is a three-phase electric motor with a rotating armature and fixed field windings around it. The fixed field windings are tightly wound coils of wire inside the motor case. The armature is a set of coils wound around a central shaft. Brushes connect the armature to the fixed field windings in a circular pattern, allowing them to rotate with the armature.
Electric traction motors have many advantages. They are able to convert electrical energy into mechanical energy, which in turn propels the vehicle. Their high efficiency and power density allow them to work in a variety of vehicle applications, including passenger cars and light trucks, as well as rail and industrial machineries. They are also easy to install, requiring no mechanical contacts and are considerably lighter than DC electric motors. And since they are so powerful, many automobile manufacturers have opted to install them in their cars.
The electric traction motor market is competitive and highly fragmented. The key players in this market include ABB, NIDEC CORPORATION, TOSHIBA CORPORATION, General Electric, Siemens, and GE. The report highlights the trends, key players, and competitive landscape of the Electric Traction Motor market. Detailed market forecasts for the Electric Traction Motor industry are provided in the report.
Which motor is used in traction system?
There are many different types of electric motors used in traction systems. One type is the DC series motor, which develops a high starting torque and has a relatively low speed. The AC series motor, on the other hand, is a commutator motor that reverses currents every half-cycle. The AC series motor develops unidirectional torque, but suffers from a high starting torque. This leads to poor motor performance.
In the rail system, high voltage is converted to low voltage using transformers. A power-electronic converter (PEC) converts the low voltage to DC. DC series motors have high starting torque, moderate speed control, and a high torque at low speeds. For rapid acceleration and deceleration, DC traction motors are preferred. DC traction motors are more efficient. They also have lower noise levels than AC motors.
The second type of electric traction system uses the quill drive. The older types of quill drive used rubber and radially mounted coil steel springs to connect the motor to the wheels. These electric locomotives have the quill drive in the UK Class 91. The German version is known as the hollow shaft and is found in Class 101 electric locomotives. It is important to choose the correct motor for your system based on the size of your locomotive.
What is Traction Voltage?
If you have a question like, “What is traction voltage?” you’ve come to the right place. This system is used in vehicles to provide power to various electrical components. A junction box contains multiple electrical connectors and an electronic control unit. These components include an electrical supply means and a load. The electronic control unit monitors the current flow through each of the components. The controller is usually a standalone device but can also be integrated with a circuit breaker.
Various electrical systems provide electricity to train engines. AC voltages are commonly used in North America, Western Europe, and Australia. AC systems use 1.5 kV, while DC voltages use a higher level, three times the voltage. The voltage is then stepped down for traction motors and other auxiliary loads. Despite these differences, AC traction systems are still commonly used throughout the world. If you’ve ever ridden a train, you know that the voltage is different from the actual power supply, and that it will affect the speed of the train.
The first DC bus connects the high voltage junction box 20 to the power electronics converter (PEC) 31. This device contains power electronics to control the electric motor/generator 14. The second component is the electronic engine control unit (17), which controls the transmission. The electrical traction unit is also connected to the power electronics converter. When the system is fully operational, it is connected to the combustion engine 11 and the gearbox. With this electrical supply, the engine and transmission are controlled through the electronic control unit, which is an integral part of a power management system.
Which Traction is Used in India?
The standard gauge tracks are used in urban rail transit systems in India. Kolkata trams run on standard gauge tracks. The Indian Railways has an ambitious plan to electrify its entire broad-gauge network by 2021-22. Standard gauge tracks are generally faster and more comfortable for passenger trains than narrow gauge ones. But there is a catch. Standard gauge tracks are expensive to operate. Therefore, most Indian rail transit systems don’t have the option of using the narrow-gauge technology.
Electric Multiple Units (EMUs) have fewer moving parts than diesel traction. Electric Multiple Units were first built at the Integral Coach Factory in Chennai in 1962. They are governed by a manual that details the rules of electric traction. Electric traction requires 25 kV, 50 Hz single-phase power supply from a grid system maintained by the State Electricity Boards. In India, distances between adjacent sub-stations may be less than 10 km.
In the mid-1950s, India switched from DC to AC electric traction. The French led the way in this development. The AC locomotives that were first supplied to India followed the French practice. Some eight-wheel WAM-1 locomotives are still in use. The first all-electric train to leave Delhi was the Assam Mail. By June 1990, the Bombay-Delhi route had become fully electrified.
The AC-DC conversion points are located at railway stations, where AC and DC traction meet. Most of the Mumbai area is operated on 1.5kV DC, while the Igatpuri, Kasara, and Virar are run on 25kV AC. Soon, the two types of traction will replace one another and be replaced by the 25kV AC ones. A train may run on either type of rail system, depending on the situation.