The very first serial 3ES4K (3ЭС4К-001) new DC electric locomotive of Russian Railways
3ЭС4К (3ES4K) is a 3 kV D.C. electric locomotive composed of 3 sections with 9600 kW total power and 52.5 meters long. These multy-unit DC electric locomotives of the Donchak model having one booster B-unit are in production of Novocherkassk Electric Locomotive Plant (NEVZ) from 2014. They are the successors of VL10 (VL11) family, the mass-produced DC electric locomotives built in Soviet Georgia by TEVZ and in Russia at NEVZ. In most mechanical parts they are unified with the Е5К (E5K) and 2/3/4ЕС5К (ES5K) The Ermak ("Ермак"), a family of new 25 kV AC mainline freight electric locomotives with four-axle sections equipped with collector traction motors. The number of sections can be from one to four (internal - boosters without cabs). This model of AC locomotives is named in honour of Russia's national hero Ermak, conqueror of Siberia in the times of Ivan IV The Terrible. They are the next evolutionary stage in the development of ВЛ80 (VL80) freight electric locomotives and are positioned as their main replacement. Like the VL80, they were developed by the All-Russian Research Institute of Electric Locomotive Building (VELNII) in Novocherkassk and have been produced since 2004 at the Novocherkassk Electric Locomotive Plant, a part of the CJSC Transmashholding concern, currently being the most mass-produced family of Russian electric locomotives. More than 2200 ones have already been built, including 1500 three-section 3ES5K. Production of DC eclectric locomotives is more limited with 148 of 2ES4K and 78 3ES4K were built to 2022 consequently.
Locomotives have a steel wagon-type body with a main frame, on which a plastic block control cabin and a set of equipment are mounted. The running gear is designed with axle-axle suspension of traction electric motors with motor-axle plain bearings. The bogies of the low-production 6-axle freight-passenger (Bo'Bo'Bo') electric locomotive ВЛ65 (VL65) are used, this bogie differs from the bogies of VL80 and VL85 by the absence of leaf springs (flexicoil suspension is used), and from the bogie of ВЛ80, in addition, by the absence of kingpins, the force transmission is through the central inclined link. The AC locomotives are equipped with advanced 850 kW collector traction motors НБ-514Д (NB-514D; in new modification ES5S is used asynchronous motors ДТА-1100 and IGBT transistors), as well as a microprocessor control system that provides manual and automatic motion control, diagnostics of motion parameters and operation of all locomotive equipment, electric regenerative braking. Its DC counterparts use different 800 kW DTC-800 traction motors and have a dynamic brake in addition to regenerative braking.
The very first serial 3ES4K (3ЭС4К-001) new DC electric locomotive of Russian Railways
3ЭС4К (3ES4K) is a 3 kV D.C. electric locomotive composed of 3 sections with 9600 kW total power and 52.5 meters long. These multy-unit DC electric locomotives of the Donchak model having one booster B-unit are in production of Novocherkassk Electric Locomotive Plant (NEVZ) from 2014. They are the successors of VL10 (VL11) family, the mass-produced DC electric locomotives built in Soviet Georgia by TEVZ and in Russia at NEVZ. In most mechanical parts they are unified with the Е5К (E5K) and 2/3/4ЕС5К (ES5K) The Ermak ("Ермак"), a family of new 25 kV AC mainline freight electric locomotives with four-axle sections equipped with collector traction motors. The number of sections can be from one to four (internal - boosters without cabs). This model of AC locomotives is named in honour of Russia's national hero Ermak, conqueror of Siberia in the times of Ivan IV The Terrible. They are the next evolutionary stage in the development of ВЛ80 (VL80) freight electric locomotives and are positioned as their main replacement. Like the VL80, they were developed by the All-Russian Research Institute of Electric Locomotive Building (VELNII) in Novocherkassk and have been produced since 2004 at the Novocherkassk Electric Locomotive Plant, a part of the CJSC Transmashholding concern, currently being the most mass-produced family of Russian electric locomotives. More than 2200 ones have already been built, including 1500 three-section 3ES5K. Production of DC eclectric locomotives is more limited with 148 of 2ES4K and 78 3ES4K were built to 2022 consequently.
Locomotives have a steel wagon-type body with a main frame, on which a plastic block control cabin and a set of equipment are mounted. The running gear is designed with axle-axle suspension of traction electric motors with motor-axle plain bearings. The bogies of the low-production 6-axle freight-passenger (Bo'Bo'Bo') electric locomotive ВЛ65 (VL65) are used, this bogie differs from the bogies of VL80 and VL85 by the absence of leaf springs (flexicoil suspension is used), and from the bogie of ВЛ80, in addition, by the absence of kingpins, the force transmission is through the central inclined link. The AC locomotives are equipped with advanced 850 kW collector traction motors НБ-514Д (NB-514D; in new modification ES5S is used asynchronous motors ДТА-1100 and IGBT transistors), as well as a microprocessor control system that provides manual and automatic motion control, diagnostics of motion parameters and operation of all locomotive equipment, electric regenerative braking. Its DC counterparts use different 800 kW DTC-800 traction motors and have a dynamic brake in addition to regenerative braking.