TE171 DBU (Dynamic Braking Unit)
Main function: Consume the excessive regenerative braking energy
Traction: Restrain the instantaneous overvoltage
Rated resistance ：3.6 ohm
Rated voltage ：1800kw*2
Rated power ：DC2715V
TZY1 Overvoltage absorbing Resistor
Application：Fangshan line, BJ subway
Main function：Lower relative overvoltage until to zero
Rated voltage（20℃）：2—0.81ohm
Rated operation voltage：DC900V
Rated power：2×13.5KW
TY3 Overvoltage absorbing Resistor
Application：Changping line, BJ subway
Main function：Lower relative overvoltage until to zero
Rated resistance value：2--0.455ohm
Rated operation voltage：DC1100v
Rated power ：7.78KW
TE069 DBU
Main function: Consume the excessive regenerative braking energy
Traction: Restrain the instantaneous overvoltage
Rated resistance：4.5ohm
Rated voltage：DC2608v
Rated power：2570kw
