|Resistance||2.5 Ohms +/- 5% at 20°C|
|Max. Voltage to Earth||2800V DC nominal|
|Max. Current Stress||1705Amps. Peak Surge|
|Energy Losses||1000 KWs|
|Test Voltage||9 kV RMS for 60 secs|
|Creepage Distance||50 mm Min|
|Cooling||Natural Air Cooling|
|Equivalent||Product ID No.3EHN424091P0025|
Resistor over Voltage Protection called MUB is provided in the over voltage limitation circuit which is one of the main constituent of traction power convertor.
In case capacitance of DC-link capacitor bank is not sufficient to prevent the DC-link from sudden and inadmissible high transient over voltages, the over voltage protection (limitation) resistor is almost immediately connected across the DC link by the firing of a GTO/IGBT.