The KZ4AT is a single-section locomotive with asynchronous traction motors, a Bo'Bo' axle arrangement and an axle-load of 21.5 tonnes. Its top service speed is 200 km/h.
The design of the KZ4AT is essentially similar to that of the KZ8A, both types having the maximum number of components in common.
The locomotive is designed for use in all possible climatic conditions experienced on the 1,520 mm gauge network. It possesses all the advantage of latest generation electric locomotives, having environmentally friendly operational characteristics, a high level of reliability, and economical maintenance characteristics. It also offers a comfortable working environment for the locomotive crew.
Like the KZ8A, the KZ4AT is designed for multiple operation, with just one cab being occupied.
The Type KZ4AT: Principal Technical Data
Type of service | Passenger |
Axle configuration | Bo'Bo' |
Bodyshell | Steel |
Track gauge | 1,520 mm |
Loading gauge | compliance GOST 9238-83 1-Т |
Overall length | 19,000 mm |
Height | 5,180 mm |
Weight | 86 tonnes |
Axle-load | 25 tonnes |
Ambient temperature range | -50ºC to +40ºC |
Bogies | |
Traction motors | Three-phase, asynchronous, suspended from axles |
Wheel diameter | 1,250 mm |
Automatic couplings: | |
Type | СА-3, in compliance with GOST 21447 |
Absorption of impact energy | 35 kJ |
Automatic train protection (ATP) system | |
Type | KLUB-U |
Technical data | |
One-hour power rating at shaft | 4,800 kW |
Electrification system | 25 kV AC 50 Hz |
Maximum speed | 200 km/h |
Speed at continuous power rating | 84 km/h |
Starting tractive effort | 264 kN |
Regenerative braking | 4,400 kW |
Maximum braking force | 200 kN |
Electric traction motors | |
Type | asynchronous, AC |
IGBT | 3.3 kV / 1,200 A |
DC bus line | 1,800 V |
Cooling | Air |
On-board sub-systems | |
Supply voltage for on-board systems | 400 V AC 50 Hz |
Accumulator batteries: | |
Type | Nickel-Cadmium |
Voltage | 110 V |
Volume | 130 Аh |
