ПОДДРШКА
Железничкиот сообраќај
Author：ZYG Power Moduleвреме на издавање: 2022-1-3
The development of railway technology
The German motor vehicle technology series, the Canadian mobile car technology series, the French train technology series ans other rail transportation technologies represent the advanced level of the world. China’s rail transit technology has been introduced and developed in recent years, and it has reached the advanced level of the world, but the key traction control technology is still dominated by foreign products.
Since the construction of Shanghai 1 and Guangzhou 1 subway in the 1990s, urban rail transit construction in China widely uses the latest technology and equipment, has built a world-class technical level of urban rail transit system, but the rail transit technology is still in the stage of introduction, digestion, absorption and innovation.
In the 1990s, all countries in the world adopted the stepless speed regulating DC motor system or the stepless chopper regulating DC motor system with power electronic control. In1990, after the emergency of GTO, the insulator gate transistor (IGBT), the developed country metro began to adopt the AC drive system of straight – alternating frequency conversion and variable pressure regulating AC motor. Since the 1990s, all new subway lines, monorail and light rail lines have been used in the communication transmission system of IGBT module except Shanghai NO.1 subway. Compared with DC drive, AC drive can reduce the power consumption by 40%. The amount of brake shoe is reduced by more than half due to regenerative braking.
The metro type A car (car width 3 meters /3.2 meters) and type B (2.8 meters wide) are all widely used in the international general application of the non-swing pillow bogies. This kind of bogies has the advantages of simple structure, less spare parts, light weight and less maintenance. Bogies with two lines suspension damping structure, a series adopts metal rubber laminated structure, the department uses the air spring, and is equipped with automatic height adjustment valve, through the exhaust gas and gas supply, automatically adjust the vehicle floor height, with faces matching platform. All different types of vehicles, such as subway A, B, linear electric locomotive, monorail, low-floor light rail, etc., are produced in our country.
Recommended product series: DPM60-110SXX-EB\DPM150-110SXX-FA series.
Претходно:Комуникација
Следно:Колиер
релевантни информации
-
2023-4-24
како да се поврзете напојување од наизменична струја во еднонасочна струја
Wiring an AC to DC power supply is a task that can be accomplished by following a few simple steps. This article will provide a step-by-step guide on how to wire an AC to DC power supply, without using any abbreviations. Step 1: Gather the necessary materials The first step is to gather all the necessary materials needed to complete the task. This includes an AC to DC power supply, a power cord, a multimeter, a soldering iron, solder, and wire strippers. Step 2: Turn off the power Before starting any electrical work, it is important to turn off the power source. This can be done by unplugging the power cord or turning off the circuit breaker that supplies power...
Погледнете детали -
2023-5-5
AC-DC Power Supply: A Complete Guide
AC-DC power supply is a device that converts alternating current (AC) to direct current (DC) for use by electronic devices. The output voltage and current of a power supply can be regulated to meet the requirements of different electronic devices. In this guide, we will discuss the different types of AC-DC power supplies, their applications, and how to select the right power supply for your needs. Types of AC-DC Power Supplies There are two basic types of AC-DC power supplies: linear and switching. Linear power supplies use a transformer to convert AC input voltage to a lower AC voltage, which is then rectified and regulated to produce a DC output voltage. Switching power supplies use high-frequency switching to convert AC...
Погледнете детали -
2023-3-31
The Importance of Quality Control in China DC-DC Converter Manufacturing
Quality control is crucial in every aspect of manufacturing, especially in China DC-DC converter manufacturing. DC-DC converters are devices that convert one voltage level to another and are used in various industries, including automotive, aerospace, medical, and electronics. Quality control ensures that the DC-DC converters meet the required specifications, performance standards, and safety regulations. In this article, we will discuss the importance of quality control in China DC-DC converter manufacturing. DC-DC Converter Basics DC-DC converters are devices that convert one voltage level to another. They are made up of several components, including inductors, capacitors, diodes, and transformers. The converter operates by using pulse width modulation to regulate the output voltage as per the input signal. These converters come in...
Погледнете детали -
2023-7-11
120V AC to 12V DC Converter: Efficient Voltage Conversion Solution
Introduction In today's rapidly evolving technological world, efficient voltage conversion solutions are crucial for various applications. One such solution is the 120V AC to 12V DC converter, which enables the conversion of alternating current (AC) to direct current (DC). This article aims to provide an overview of this converter, highlighting its efficiency and the benefits it offers. Understanding the 120V AC to 12V DC Converter The 120V AC to 12V DC converter is a device that transforms the electrical voltage from 120 volts alternating current (AC) into 12 volts direct current (DC). This conversion is necessary as many electronic devices, such as computers, televisions, and smartphones, require a lower voltage DC power source to operate efficiently and safely. Efficiency of...
Погледнете детали -
2023-8-1
AC/DC Power Supply SM Series manufacture: Reliable and Efficient Solutions for Your Power Needs
In today's fast-paced world, where technology plays a crucial role in our daily lives, a reliable and efficient power supply is of utmost importance. Whether it is for our homes, offices, or industries, we need a power source that can provide a stable and uninterrupted flow of electricity to keep our devices running smoothly. This is where the AC/DC Power Supply SM Series comes into the picture – offering reliable and efficient solutions for all your power needs. The AC/DC Power Supply SM Series is a range of power supplies designed to meet the diverse requirements of various applications. From low-power applications like consumer electronics to high-power applications such as industrial machinery, these power supplies offer a wide range of...
Погледнете детали -
2023-11-16
Module Power Supply: Meeting the Power Needs of Modern Technology
In today's rapidly advancing technological world, the demand for power is ever-increasing. From smartphones to laptops, from electric vehicles to data centers, each device requires a reliable and efficient power supply to function properly. This is where module power supply comes into play. Module power supply, also known as modular power supply, is a revolutionary solution that has been developed to meet the power needs of modern technology. So, what exactly is module power supply? It is a power supply system that consists of various modules, each responsible for delivering power to different components of a device or system. These modules can be connected or disconnected easily, allowing for flexibility and scalability. This modular approach enables users to customize their...
Погледнете детали