Traction converter for trolleybus PP-PPPT-230-550-1 is designed to be installed on two-axle trolleybuses of ZiU-682G model or analogous ones to provide for the required tractive and braking characteristics thus replacing a resistor and contactor control system.
The converter provides control over electric traction direct current compound-wound motor DK-213 with the regimes set by the driver using control pedals.