CRH2A-NG

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CRH2A-NG EMU Train was born in December 2015, belongs to the CRH2-NG series, 4M4T in marshalling, the hole length is 201.4 m, has a maximum design speed of 250 km/h, and 275 km/h in the experiment

全新造型

新头型CRH2A型动车组，CRH2A-2460，采用青岛四方为CRH2G新研制的头型，仅试制一列，该车并非CRH2G的试验车，与2014年10月11日招标的CRH2A一同交付，晚于CRH2H和CRH2G。该车仅头型与CRH2H样车（CRH2H-2361、CRH2H-2417早期）相同，与量产CRH2G头型有所不同，技术上与CRH2G并无明显关系，其他如空调位置、车门都与CRH2G有明显区别，无法与CRH2G重联运行，其他参数及性能与CRH2A统型相同，亦可与其他相近批次的CRH2A统型重联运行。

Detail of its series

Existing problems and deficiencies

CRH2-NG系列虽然对外观与内饰进行了大幅度更新，但并未对列车网络进行升级，使用的依然是源自CRH2的落后网络，不仅列车检修维护困难，还需要使用（日本进口的寿命约为5年的内置不可充电且无法更换电池的）有源NFC卡片写入包括列车车次数据、广播信息以及显示屏内容的列车运行数据，卡片寿命到期后需要更换，且部分列车因年代久远，相关车载装置也存在问题，另外该系统与列车网络深度绑定，通信协议落后，且使用光纤传输，更换系统较为困难，导致列车无法更换车次信息，部分列车只能长期固定交路，限制了列车运行范围。过分相时辅助变流器断电，空调、换气系统和空压机等会停止工作，重新启动时会发出额外的噪音。

备用制动也采用电制动（DC100V），当受电弓无法取电且蓄电池无电的情况下无法缓解制动，只能使用同型号同批次列车以固定方向救援（00车-01车），当使用不同型号动车组或机车救援时，只能全列手动缓解，限速5 km/h。

Photo by Aiklld2364

Appearance

Technical Parameter

Speed

250 km/h

Design speed

250 km/h

Operating speed

275 km/h

Maximum experimental speed

Appearance

4M4T

Marshalling

201.4 m

Total length

3330 mm

Width

3700 mm

Height of Car Body

25700 mm

Distance between center of couplers of head cars

25250 mm

Body length of head cars

25000 mm

Center distance of coupler of middle cars

24500 mm

Body length of middle cars

17500 mm

Center distance of bogies

2500 mm

Wheelbase of bogies

860/790 mm

Diameter of the new wheel(M/T)

1000 mm

Height of center of coupler

1000 mm

Height of center of coupler of middle cars

14 t

Max Axle load

425.9 t

Max weight

375.8 t

Curb weight

Power

YQ300-2 × 16

Motor model

300 kw

Motor power

4800 kw

Installed power

4560 kw

Power at wheel rim

Performance

1.296 km/h/s

Calibrated initial acceleration (not actual use)

150 m

The minimum radius of the curve that can be passed

180 + 10 + 180 m

The minimum radius of an S-shaped curve that can be passed

-25~40 ℃

Operating temperature

Control

CTCS2-200H LKJ2000

Train control systems

LMA

Tread tyoe

DSA250

Pantograph model

22.5 ~ 29 kV

Normal operating voltage

4748 / 7156 mm

Maximum and minimum height of pantograph

5048 ~ 6956 mm

Pantograph working height

DC100 V

Battery voltage

AC400V

External power supply voltage

Service facilities

Air
Conditioned

AC 220v

Electrical outlet

Food supply

Dining bar

Hot water

Tea stove

Rest rooms

Toilets

Barrier free

Braille and Wheelchair area

Suitable for infants

Infant care facility

Frmation and seat arrangement

Cars

613

Seat Number

Car 01 / Tc ZY (48)

Car 02 / M ZE (90)

Car 03 / M ZE (90)

Car 04 / Tp ZE (77)

Car 05 / T ZEC (63)

Car 06 / Mp ZE (90)

Car 07 / M ZE (90)

Car 08 / Tc ZE (65)

Seat type and capacity

First-class seats

china-emu.cn

565

Second-class seats

china-emu.cn

（统型）

Manufacturer and batch

Manufacture by

CRH2A-2460 (1 in all)

The schematic diagram is automatically generated and only for reference.

Upgraded at 2021-11-16

^* M: Motor Car; Mc: Motor car with driver's cab; Mp: Motor car with driver's pantograph; T: Trailer Car; Tc: Trailer car with driver's cab; Tp: Trailer car with driver's pantograph
^* ZE: Second-class car; ZY: First-class car; ZS: Business Car; ZET: Second-class and Premier-class car; ZES: Second-class and business car; ZYT: First-class and Premier-class car; ZYS: First-class and business car; ZEC: Second-class car with dining room; WR: First-class sleeper car; WE: Second-class sleeper car; WY: First-class sleeper car; WG: Luxury sleeper car; WRC: First-class sleeper car with dining room; CA：Dining car

Main References

用脚步丈量每一寸轨道，
用心灵享受每一段旅程

CRH2A-NG

Main References

用脚步丈量每一寸轨道，用心灵享受每一段旅程

用脚步丈量每一寸轨道，
用心灵享受每一段旅程