What are auxiliary power converters?Medha’s Auxiliary Power Converters deliver stable, high-efficiency power for railway systems. Engineered for durability and optimised for performance, our converters ensure uninterrupted auxiliary power supply in trains. Explore our advanced power solutions.
What are the different types of SIV systems?We have a large variety of these systems including a 2-level SIV (Static Inverter) which cover the range between 70 kVA and 260 kVA, high efficiency 3-level SIV, redundancy considered standby dual SIV, and a dual mode SIV which switches over from the inverter for traction motor to APU in the event of an SIV failure.
Why are auxiliary converters important?With the ongoing development of rail vehicles, electric and hybrid buses, passenger comfort and information are becoming increasingly important. This highlights the key role of the power supply for onboard electricalconsumers. Our auxiliary converters are the crucial linkbetween these consumers and the vehicle‘s power supply.
What types of auxiliary converters does Medha offer?Medha offers a wide range of Auxiliary Converters for all types of rollingstock; Locomotives, Electric Multiple Units, Diesel Electric Multiple Units, Monorail, Light Rail, and Special Rail Vehicl
特長 東芝の電源システムは高い過渡応答性と安定した制御に加え、小型軽量、低騒音を実現しています。 70kVA～260kVAまでをカバーする2レベ
Infineon offers highly efficient and flexible inverter solutions for auxiliary systems in electric vehicles (EV). Our full automotive-qualified product portfolio supports a wide range of
6 days ago · Passenger comfort and information are becoming increasingly important in modern mobility. This also increases the importance of on-board
Jun 29, 2025 · Our History Toyo Denki was established in 1918 to manufacture electrical equipment for trains in Japan. Ever since, we have worked to create products that deliver the
SIVs are also known as pulse-width modulation (PWM) control inverters, which can now be supported by small AC filters, contributing greatly to the miniaturization and high efficiency of
Medha''s Auxiliary Power Converters deliver stable, high-efficiency power for railway systems. Engineered for durability and optimised for performance, our
The use of SiC devices in on-board auxiliary inverters can decrease the size and loss, reduce the cost and minimize thermal management system, and thus bring more convenience to
Jul 3, 2020 · The Manufacturer shall develop. A detailed RAMS assessment system along with targets in support of the design, manufacture and subsequent testing, commissioning,
SiC based converter technology Silicon carbide (SiC)-based power electronics enable the develop-ment of smaller, lighter, more robust, and more energy-efficient systems for auxiliary
Feb 14, 2022 · Company''s products are mainly based on the AC drive control and the new field of energy, in AC drive automation control and power electronics technology, continuous research
6 days ago · Individually configured Siemens traction converters fit every requirement. They are based on highly developed platform solutions, supplied
Mar 15, 2021 · To continuously contribute to the energy-saving goals of the SDGs in the future, we have developed smaller and lighter traction inverter systems by applying the latest SiC power
We supply auxiliary power supply systems that are compact, lightweight, highly efficient and have high redundancy. Toshiba provides a full auxiliary power supply system lineup that meets
Dec 13, 2021 · Working principle and structure of auxiliary inverters (SIV) for metro vehicles on Nanjing metro line S8 were introduced. The deficiencies in the control of auxiliary inverters for
Aug 6, 2025 · VVVF merupakan kependekan dari Variable Voltage Variable Frequency sedangkan SIV adalah Static Inverter. Pada dasarnya VVVF dan
Jan 25, 2021 · German inverter manufacturer Kaco new energy, a subsidiary of German industrial conglomerate Siemens, unveiled two SiC string inverters for
DAWON has supplied major electric component such as propulsion system, auxiliary power supply unit (SIV unit), HVAC system to 56 cars of Seoul Metro Line #7 and 200 cars of Seoul
Sineng Electric provides a comprehensive product portfolio ranging from 3kW to 8.8MW, applicable to residential, C&I, and utility-scale PV projects. The all-scenario solutions, featuring
There are two main types of auxiliary power supplies for vehicles: MGs (Motor Generators) and SIVs (Stationary Inverters). The MG, also called an electric generator, has long been used as
Jan 3, 2025 · 1) The document provides block diagrams and descriptions of various components that make up a Static Inverter (SIV) system used in Indian locomotives to convert AC power to
Mar 4, 2023 · The Static Inverter (SIV) failed occurs on the mainline of the EMU. It must be repaired and reset by the main work shop after the passenger evacuation, which will result in
An apparatus for detecting an abnormality in an output voltage of an SIV for a railway car according to the present invention is an apparatus for detecting an abnormality by measuring
Based on the AC motor controlling technology for rolling stacks, VCTech manufacture the running inverter controllers for electric vehicles as well as for golf cars including the nation''s first 5
4 days ago · Auxiliary power innovator Wabtec is an international manufacturer and supplier of on-board railway equipment and systems. Since 1979, we
Our auxiliary converters are the crucial link between these consumers and the vehicle''s power supply. Thanks to its standardized module concept, the SiC-based system creates entirely
Jul 31, 2017 · Our company for the subway vehicle development of the traction control device VVVF inverter, SIV auxiliary power supply device with heat pipe radiator has been successfully
Battery Charger 회생에너지 저장 시스템 전철용 추진 Inverter 제어장치 자기부상열차용 추진 Inverter 1 / 4 (주)브이씨텍
Feb 14, 2022 · Company''s products are mainly based on the AC drive control and the new field of energy, in AC drive automation control and power electronics technology, continuous research
[Objective] In the current mainstream of train auxiliary power supply systems, such as cross-supply method and extended supply method, the failure of a single SIV (auxiliary inverter) can
DAWON has supplied major electric component such as propulsion system, auxiliary power supply unit (SIV unit), HVAC system to 56 cars of Seoul Metro
Oct 4, 2024 · 2. Troubleshooting instructions are provided for issues like the FDCS or display not working, failure of the isolating cock to close, and traction loss without grinding progression. 3.
Medha’s Auxiliary Power Converters deliver stable, high-efficiency power for railway systems. Engineered for durability and optimised for performance, our converters ensure uninterrupted auxiliary power supply in trains. Explore our advanced power solutions.
We have a large variety of these systems including a 2-level SIV (Static Inverter) which cover the range between 70 kVA and 260 kVA, high efficiency 3-level SIV, redundancy considered standby dual SIV, and a dual mode SIV which switches over from the inverter for traction motor to APU in the event of an SIV failure.
With the ongoing development of rail vehicles, electric and hybrid buses, passenger comfort and information are becoming increasingly important. This highlights the key role of the power supply for onboard electrical consumers. Our auxiliary converters are the crucial link between these consumers and the vehicle‘s power supply.
Medha offers a wide range of Auxiliary Converters for all types of rollingstock; Locomotives, Electric Multiple Units, Diesel Electric Multiple Units, Monorail, Light Rail, and Special Rail Vehicles.
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