ПОДДЕРЖИВАТЬ
Железнодорожное сообщение
Author：ZYG Power Moduleвремя выпуска：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.
Рекомендуемая серия продуктов: DPM60-110SXX-EB\DPM150-110SXX-FA series.
Предыдущий:Коммуникация
Следующий:Угольная шахта
релевантная информация
-
2023-6-19
LED Power Supply: Converting 12V AC to DC for Optimal Performance
As the world becomes more reliant on technology, there is a growing demand for efficient and reliable power supplies. One option that has gained popularity in recent years is LED power supplies, which convert 12V AC to DC for optimal performance. In this article, we will explore the benefits of LED power supplies and how they work. LED power supplies are specifically designed to power LED lighting systems, which have become increasingly popular due to their energy efficiency and long lifespan. However, LED lights require a constant DC voltage to function properly, which is not provided by the standard AC power supply found in most homes and buildings. This is where LED power supplies come in. The main function of...
Посмотреть детали -
2023-8-18
Customized Electric Power Series: Harnessing the Energy Revolution
Introduction: In recent years, the world has witnessed a growing demand for electricity, driven by population growth, urbanization, and industrialization. However, this surge in demand has also led to increased concerns about the sustainability, cost, and environmental impact of traditional energy sources. As a result, there has been a significant push towards harnessing the energy revolution - the adoption of cleaner and renewable sources of electric power. In this article, we will explore the various technologies and advancements that are paving the way for a sustainable energy future. 1. Solar Power: Solar power has emerged as one of the most promising sources of renewable energy. With the advancements in photovoltaic (PV) technology, solar panels have become more efficient and affordable....
Посмотреть детали -
2023-4-26
Designing an AC-DC Converter Circuit for Efficient Power Conversion
An AC-DC converter circuit is an electronic device that converts alternating current (AC) into direct current (DC). It is an important component of many electronic devices and systems, including power supplies, motor drives, and lighting systems.When designing an AC-DC converter circuit, several factors must be considered to ensure efficient power conversion. These include the input voltage and frequency, the output voltage and current, and the efficiency of the circuit.One of the first steps in designing an AC-DC converter circuit is to determine the input voltage and frequency. This will depend on the specific application and the power source available. The input voltage and frequency will determine the type of circuit topology that can be used, such as a full-bridge or...
Посмотреть детали -
2023-5-27
Choose China 12V 15A AC to DC Converter Manufacturer
A 12V 15A AC to DC Converter is a device that can be used to convert AC voltage into DC voltage. AC stands for Alternating Current, while DC stands for Direct Current. The process of converting AC to DC involves rectification, filtering, and regulation. The rectification process involves converting the AC voltage into a pulsing DC voltage. This is done by using a diode bridge, which is a circuit that consists of four diodes arranged in a bridge configuration. The diodes allow the current to flow in only one direction, which results in a pulsing DC voltage. The next step is filtering. The pulsing DC voltage is not suitable for most electronic devices, as it contains ripples and fluctuations. To...
Посмотреть детали -
2023-7-8
Industrial AC-DC Converter: Powering Industries With Efficiency and Reliability
In today's fast-paced and technology-driven world, industries rely heavily on efficient and reliable power supply to ensure continuous operations. Among the various power conversion devices available, the industrial AC-DC converter stands out as an essential component in powering industries. This article will delve into the importance, functionality, and benefits of industrial AC-DC converters in industrial settings. An industrial AC-DC converter is a device that converts alternating current (AC) power into direct current (DC) power. It plays a vital role in industries where the majority of electrical systems and equipment operate on DC power. By converting the incoming AC power from the grid into DC power, the converter ensures a steady and reliable power supply to the industrial equipment. One of...
Посмотреть детали -
2022-9-27
Преимущества модульных источников питания
Простой дизайн. Питание можно получить с помощью всего одного силового модуля и нескольких дискретных компонентов. Сократите циклы разработки. Модульные блоки питания Vess обычно имеют различные варианты ввода и вывода. Пользователи также могут перекрываться или перекрываться, чтобы сформировать модульный комбинированный источник питания для получения нескольких входов и нескольких выходов, что значительно сокращает время разработки прототипов. Гибкость к изменениям. Если необходимо изменить конструкцию продукта, просто преобразуйте или подключите другой подходящий силовой модуль. Низкие технические требования. Модульные источники питания Weisman, как правило, оснащены стандартизированными высокоинтегрированными входными модулями питания и другими компонентами, упрощающими проектирование источников питания. Корпус блока питания модуля имеет интегрированную структуру из радиатора, радиатора и корпуса, что...
Посмотреть детали