UNTERSTÜTZUNG
Schienenverkehr
Author：ZYG Power Modulerelease time：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.
Vorherige:Kommunikation
Nächste:Zeche
relevante Information
-
2022-10-27
Was ist ein AC-DC-Wandler? Ein AC-DC-Wandler ist ein Gerät, das Wechselstrom (AC) in Gleichstrom (DC) umwandelt. Dies ist nützlich für Geräte, die eine stabile Gleichstromversorgung benötigen, wie Computer und andere elektronische Geräte. Es gibt viele verschiedene Arten von AC/DC-Wandlern mit jeweils eigenen Vor- und Nachteilen. Zu den gebräuchlichsten Arten von AC/DC-Wandlern gehören Abwärtswandler, Aufwärtswandler und Wechselrichter. Welche Vorteile bietet die Verwendung eines AC-DC-Wandlers? Die Verwendung eines AC-DC-Wandlers bietet viele Vorteile. Einer der offensichtlichsten Vorteile ist, dass ein AC/DC-Wandler dabei helfen kann, die Spannung eines elektrischen Systems zu stabilisieren. Darüber hinaus tragen AC-DC-Wandler dazu bei, die Effizienz elektrischer Systeme zu steigern und elektronische Geräte zu schützen ...
Einzelheiten anzeigen -
2023-9-27
AC Power Supply Module: Ensuring Reliable and Efficient Electrical Power
Introduction: Electricity is the lifeblood that powers our homes, offices, and industries. To ensure the reliable and efficient delivery of electrical power, AC power supply modules play a vital role. These modules are designed to provide a stable and constant supply of power while minimizing losses and maximizing system performance. In this article, we will explore the importance of AC power supply modules and how they contribute to the overall reliability and efficiency of electrical power systems. The Importance of Reliable Power Supply: Reliable power supply is crucial for various applications, ranging from residential to industrial settings. Any interruption or fluctuation in power can lead to significant disruptions, financial losses, and even safety hazards. AC power supply modules are designed...
Einzelheiten anzeigen -
2023-5-29
China IXXYY Series DC-DC Converter price
The IXXYY Series DC-DC Converter is a high-performance electronic device used to convert direct current (DC) voltage from one level to another. With a wide range of input and output voltage options, this converter is capable of being used in a variety of applications, including telecommunications, automotive, industrial, and medical industries. One of the most notable features of the IXXYY Series DC-DC Converter is its high power efficiency, which makes it an ideal choice for applications where power consumption is critical. The converter operates with up to 95% efficiency, minimizing the amount of energy that is wasted during the conversion process. This high level of efficiency also means the converter generates less heat, which can be beneficial for applications where...
Einzelheiten anzeigen -
2022-5-16
Wie kann die Sicherheit des Schaltnetzteils im Fehlerfall gewährleistet werden?
Wissen Sie, auf welche Probleme beim Umgang mit Ausfällen geachtet werden sollte? Damit alle sicher sind. (1) die meiste Zeit im Prozess der Fehlerverarbeitung Induktionsleistung tatsächlichen Betrieb, so müssen wir darauf achten, dass kein DC-Ausgang, Kommunikations-AC-Eingangskurzschluss verursacht werden kann, alle Arten von Wartungsspezialwerkzeugen müssen eine gute Arbeit der Isolationsschicht leisten Behandlung, um die Sicherheit des Lebens zu gewährleisten und die Sicherheit der Stromversorgung der Maschinenausrüstung zu schalten. (2) im eigentlichen Betrieb auf Einhandbedienung so weit wie möglich, die eigentliche Bedienungshand erlaubt es nicht, Metallmaterial, elektrische Leiterdekorationen, wie Uhren, Schlüssel, Ringe usw., zusammen mit den Isolierschuhen für zu enthalten. ..
Einzelheiten anzeigen -
2023-3-6
Understanding the Role of AC-DC Converters in China’s Renewable Energy Industry
The rapid growth of China's economy has led to an increase in energy demand, making the development of renewable energy sources a priority for the country. Renewable energy sources, such as wind and solar power, require power electronic devices, including AC-DC converters, to convert the energy from DC to AC for use in homes and businesses. In this article, we will discuss the role of AC-DC converters in China's renewable energy industry and the impact of this industry on the country's economy. What are AC-DC Converters? AC-DC converters are power electronic devices that convert AC power to DC power. These devices are used in a wide range of applications, including renewable energy systems, consumer electronics, and industrial automation. In...
Einzelheiten anzeigen -
2023-4-26
AC-DC Power Supply: How It Works and Its Applications
IntroductionAC-DC power supplies are an essential part of modern electronic devices, ranging from small portable gadgets to large industrial equipment. These power supplies convert the AC (alternating current) voltage from the mains supply to a DC (direct current) voltage that is required by the electronic device. This article aims to explain the working principle of AC-DC power supplies and their applications.Working PrincipleAC-DC power supplies typically consist of two stages: a rectifier stage and a filter stage. The rectifier stage converts the AC voltage to a pulsating DC voltage, while the filter stage smoothes out the pulsations to produce a steady DC voltage.The rectifier stage can be implemented using different types of circuits, such as half-wave rectifiers, full-wave rectifiers, or bridge...
Einzelheiten anzeigen