Custom geometries solutions for public transportation industry - Aerospace & Air Transport
Public transportation such as commuter and rapid transit trains, trams, and busses may derive primary power from a high voltage AC (up to 25kV/60Hz) or DC (600-1500VDC) power line in the form of an overhead line or a third rail. High Voltage AC line power is first stepped down and rectified to produce DC. Power from a high voltage DC link is then converted to 3-phase AC power for powering traction motors and auxiliary AC power for powering equipment such as air-conditioning compressors or fans. Further rectification and DC-DC conversion or power factor correction provide power for DC loads such as for battery charging, lighting and instrumentation. Electrically powered public transportation affords zero-emission operation particularly advantageous when traversing long tunnels or within busy city centers. Battery power may be used for traction within select lines or city routes to avoid overhead lines.
Overview Applications & Industries Served
Typical applications with Inductor components include:
- AC Inductor – DC-AC Inverter Traction Motor, Output Filter
- AC Inductor – DC-AC Inverter Auxiliary AC, Output Filter
- Power Factor Correction Inductor – AC-DC Converter, Battery Charging
- DC Inductor – DC-DC Converter
- DC-AC Inverter, Tractor Motor, Output Filter Inductor
- AC Inductor with ripple (f1=60Hz, f2=4kHz, Irms?L?Iripple?)
- DC-AC Inverter, Auxiliary AC Power, Output Filter Inductor
- Power Factor Boost Inductor
- PFC Inductor (240V/480Vin/400VDCout)
- DC-DC Converter, Power Inductor
- DC Inductor (400VDC-
Applications within public transportation require high reliability that meets standards for vibration, wide operating temperature range, size/weight limits and noise limits,
EN 51055: Railway Applications. Rolling Stock. Electronic Equipment
EN 61287-1: Railway Applications. Power Converters installed on board rolling stock. Characteristics and test methods.