PLUTON experts developed and introduced into production two modifications of traction regulated electric drive with asynchronous squirrel-cage motors based on frequency converters:

frequency converter with separated rectifier and inverter units. A rectifier unit is installed indoors in a fixed position and provides DC power supply of trolleys (two trolleys, or one trolley and rail), which further provide a power supply of an inverter unit, installed directly on the moving object bogie;
frequency converter with combined rectifier and inverter units installed on moving object bogie. A three-phase AC power supply is provided from three trolleys.

AC electric drive, type KPPCH, is provided for power supply, control, protection and diagnostics of traction drive with squirrel-cage asynchronous electric motors, e.g. bogie car pusher drive, which supplies from 1 up to 60 cars for unloading onto car dumper.

For example, for a car pusher drive we can apply two three-phase asynchronous motors, both with a capacity of 30...315 kW, with the squirrel-cage rotor. Each motor motions a separate wheel pair.

Pusher drive operation mode is intermittent with frequent start and braking, with motion direction reversing, thereby providing smooth start and braking.

Since pusher is supplied via two trolleys, AC drive KPPCH includes two main functional devices:

three-phase bridge rectifier VTM;
cabinet with voltage inverters SHIN;
Besides, KPPCH includes also control desk and braking resistors modules.

Parameter Name	Parameter Value
Type	three-phase asynchronous
Mounting	floor-standing
Protection class	IP54 IP21 IP43
Other characteristics	IP21
Power (W)	0 - 0 30 - 30