The first DC power supply IPBS26 380/110ZU U2 for passenger locomotive EP2K was produced by OOO “Transconverter” in February 2012.
The product is intended for transforming 3-phase 380 V 50 Hz AC into stabilized 110 V DC (for powering the locomotive control circuits) and variable 122…141 V DC for battery charging.
The power supply has two outputs.
Output 1 supplies control circuits, electronic devices and locomotive auxiliary circuits with stabilized voltage 110V DC.
Output 2 is intended for locomotive battery DC charging with regulated output voltage depending on ambient temperature.
Output 1 has two сhannels.
Channel 1 supplies control circuits with power 11 kW and nominal output current 100 A.
Channel 2 supplies auxiliary loads with power 9 kW and nominal current 82 A.
The total power of the device is 26 kW.
For the first time the HMI technology was used in the power supply for monitoring of device parameters and status.