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MEDCOM has developed and supplied compact, lightweight inverters of the total power of 2000 kW for the new Polish EMU ED74 (ED59) based on high-voltage IGBTs. They are madę for higher speeds, better efficiency, improved passenger comfort and reduced maintenance. This is the sixth railway vehicle equipped with the asyn-chronous drive developed and produced by MEDCOM.

EU

FT-500-3000 inverters

FT-500-3000 inverters are a new chopperless structure built on HV IGBT (6.5KV) transistors. The inverters are equipped with air cooling that guarantees high reliabiiity and Iow operating costs. The lack of cooling liquid decreases the environmental hazard in case of a failure. Control of the inverter is possible on the DSP with the synchronous mod-ulation. The advanced control algorithms guarantee high quality traction parameters of the train. The Iow content of harmonics in the motor current ensure Iow pulsations of the motor torque within the fuli speed rangę. The inverter operates correctly within the temperaturę rang-ing from -40°C to +50°C and within the input voltages ranging from 2000 to 3900V=.

It meets the EMC standards for the motor voltage. The crowbar (SCR) protects the inverter systems when power supply lim-its are exceeded. The applica-tion of polypropylene (dry) capacitors guarantees long service life and practically service less performance of the system.

PSM-60 converters

Static converters have been built using the HV IGBT (3.3kV), with the application of amorphous magnetic materials and insulation of windings with kapton. Microprocessor control, very good parameters of output voltages. Aluminium housing, natural convection air cooling. Rangę of input voltages from 2000V to 4200V DC, working temperaturę from -40°C to +50°C. The converters supply the 24V= on board installation (control of the vehide and door drives) and 3x400V 50Hz (air-conditioning, ventilation and com-pressors).

With morę than 7,000 units installed worldwide and with 18 years experience in the field of power electronics, the MEDCOM Company has become your innovative and strong partner for modern traction applications. Medcom produces modern propulsion and auxiliary traction converters according to any possible customer's reguirement.

Propulsion Traction Converters

•    Modern design based on HV IGBTs as the switching element

•    Power rangę - 200kW+2000kW

•    Compact and lightweight design

•    Control system in the Digital Signal Processor technology

•    lmproved reliabiiity

•    Less and simpler maintenance

•    Environment friendly (refrigerant free, easier recycling, reduced noise)

Auxiliary Traction Converters

•    Power rangę 5kW+-300kW

•    Compact and lightweight design

•    One-system and multi-system power supply (5 UIC + Russian system)

•    DC and AC output voltages (f=const, f=var)

•    Monitoring and control via RS232.CAN2.0 or MVB

•    Digital Control

•    High MTBF

•    Long service life and high level of availability

•    Fulfil current raił standards and conform to EU regulations

MEDr»Ti]:ii

Medcom Sp. z o.o. ul. Barska 28/30 PL-02-315 Warszawa tel.[phone] fax[phone] e-mail: [e-mail] www.medcom.com.pl