EZT 31WEba „Impuls II”

Technical data of 31WEba “Impuls II” Vehicles Operated by SKM (Operational Numbers 601-606).

General Data

• Design: 2021, NEWAG S.A. Nowy Sącz,
• Manufacturer: NEWAG S.A. Nowy Sącz,
• System: classic motor car + Jacobs trailing car + Jacobs trailing car + Jacobs trailing car + classic motor car,
• Cars connected with articulated joints – internal and external by Hűbner.

Basic Parameters

• Design speed: 178 km/h,
• Operational speed: 160 km/h,
• Acceleration under maximum load up to 40 km/h: 1.0 m/s²,
• Acceleration 0 – 100 km/h without load: 32 seconds,
• Acceleration 0 – 160 km/h without load: 76 seconds,
• Service braking deceleration: ≥ 0.8 m/s² ≤ 1.2 m/s²,
• Emergency braking deceleration: ≥ 1.0 m/s² ≤ 1.2 m/s²,
• Tare weight: 144 t,
• Length: 75.6 m,
• Maximum axle load on the track: ≤ 198 kN,
• Multiple unit control in MEDCOM digital technology,
• The vehicle meets the requirements of the Technical Specifications for Interoperability (TSI).

Drive Parameters

• Supply voltage: 3000 V DC according to PN-EN 50163,
• Pantographs: 160ECT-02 by EC-E,
• Traction motor type: 3-phase asynchronous by Siemens, model 1TB2025-0JA02,
• Axle arrangement: Bo’2’2’2’Bo’,
• Traction converters: FT500-3K with IGBT technology (1 inverter per motor) by MEDCOM,
• Continuous power of the vehicle: 2400 kW,
• Maximum power drawn from the traction network: 2900 kW,
• Number of traction motors: 4.

Braking and Pneumatic Systems

• Pneumatic and braking system: Manufactured by Knorr-Bremse.

Body

• Adapted for servicing stops with platforms at heights from 580 to 900 mm above the railhead level, with floor height at doors of 810 ± 50 mm above the railhead level. Additional service steps for staff boarding from ground level and for potential passenger evacuation,
• The vehicle meets the requirements of the Technical Specifications for Interoperability regarding accessibility of railways for persons with reduced mobility,
• Body strength in accordance with PN-EN 12663-1+A1:2015, category P-II for trainsets, and meets crashworthiness scenarios according to 15227:2008+A1:2011, category C-I,
• Interior flooring: Non-slip, made of plastic,
• Windows with aluminum frames with double-glazed units in accordance with UIC 560 standards,
• Number of doors: 16 (8 per side), door width 1300 mm,
• Sliding plug doors by ULTIMATE, opened by sensor switches with button press memory and equipped with sensors and a photocell to prevent passenger entrapment,
• Driver’s entry through doors located on each side of the vehicle directly to the cab, or through the passenger compartment and the electrical cabinet compartment,
• Welded body,
• Steel profile framework,
• Welded steel plating,
• Plastic front plating,
• Front windscreen in the driver’s cab is multi-layered, glued, and equipped with interlayer electric heating,
• Side windows from tempered glass units,
• Handrail and pole system for passengers,
• Luggage racks,
• Advertisement panels,
• LT panel and HT panel located  behind the driver’s cabin and in the ceiling area of the trailer cars,
• Automatic coupler providing mechanical, pneumatic, and electrical connection – Dellner type 10,
• Number of seats: 144,
• Number of standing places: 536 (6.7 persons/m²).

Auxiliary equipment

• Low-voltage circuits: 24 V DC,
• Auxiliary circuits: 3×400 V, 50 Hz,
• Two static converters: PSM-160 by MEDCOM,
• Driver’s cab air conditioning device: H0227004 by Merak. Passenger compartment air conditioning device: H0288420 by Merak,
• Electronic event data recorder: REDBOXtop by DEUTA WERKE,
• Electricity meter: EM3000 Sesto,
• CCTV monitoring with recording by NEWAG,
• Fare collection and control system of the Warsaw Public Transport Authority (ZTM),
• Two ticket vending machines per vehicle,
• Electronic displays,
• Advertising monitors,
• Automated stop announcement system,
• Passenger-driver intercom,
• Passenger counting system,
• Maintenance computer integrating the vehicle’s electronic systems by Ledatel,
• Wheelchair platforms: PA060-100,
• Defibrillator,
• LED interior lighting,
• Three multi-projectors in the front walls using LED technology, model EP-1408-V03-REFLED by INTECO.

Chassis

• Bogie types: 70RSNf (classic motor bogie) and 72RSTea (Jacobs trailing bogie),
• First degree springing: Rocker arm with steel springs,
• Second degree springing: 4 pneumatic springs, type SEK 580-15/-16 by Contitech, arranged in a 2×2 configuration,
• Hydraulic shock absorbers,
• Monoblock wheel sets,
• Trailing wheel diameter: 850 mm,
• Driving wheel diameter: 850 mm,
• Minimum railway curve radius: : 100 m (workshop conditions), 150 m (operational conditions),
• Braking system:
  basic pneumatic disk brake on each wheel of the wheel set,
  electro-pneumatic brake,
  pneumatic emergency brake,
  electrodynamic brake,
  spring parking brake.

All non-metallic materials used in the vehicle meet fire protection requirements according to the PN-EN 45545-2+A1:2015-12 standard. The vehicle is also equipped with a fire detection and alarm system.

The vehicle is fully compliant with the requirements of the Technical Specifications for Interoperability (TSI LOC&PAS, TSI PRM, TSI SRT, TSI NOI, and TSI CCS).

Average energy consumption per kilometer: 6.8 kWh/km

Average recuperated energy per kilometer: 2.6 kWh/km*

Data for the route Sulejówek – Warsaw Chopin Airport at a schedule speed (with consideration of intermediate stops) of 28 km/h.

*– Recuperated energy depends on other vehicles drawing energy in a given energy supply area.