CRH2G (Technology Enhancement)

CRH2G (Technology Enhancement) EMU Train was born in January 2016, 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

CRH2G技术提升型由中车南京浦镇车辆有限公司生产，搭载全新设计的动力平台，提高了列车性能。

2015年11月，中车南京浦镇车辆有限公司开始试制CRH2G。

2017年09月，中车南京浦镇车辆有限公司生产的首列CRH2G-0001下线，并前往北京铁道科学院（环铁）进行测试。

2018年02月，换装全新动力系统的CRH2G-0001正式开始测试。

CRH2G-0001将YQ365电机恢复默认功率，可满足坡度25-30‰的线路按设计速度运营。

2018年11月27日，中国铁路总公司进行样车采购（2018-TDDC-3-250GH），CRH2G技术提升型包含在内，该车目前配属昆明局集团，并更名为CRH2G-4501。

经过试验后，该车已恢复默认状态，且可以与其他CRH2G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。

Photo by Aiklld2364

Appearance

Cold resistance

≤-40℃

Sand resistance

＞11级风+沙尘

High Altitude Applicable

＞3000 m

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

3860 mm

Height of Car Body

25700 mm

Distance between center of couplers of head cars

25250 mm

Body length of head cars

25000 mm

Distance between center of couplers of middle cars

24500 mm

Body length of middle cars

17500 mm

Center distance of the 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

442.3 t

Max weight

393.3 t

Curb weight

Power

YQ365 × 16

Motor model

365 kw

Motor power

5840 kw

Installed power

5460 kw

Wheel Power

Performance

1.55 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

-40~50 ℃

Operating temperature

Control

CTCS2-200H LKJ2000

Train control systems

LMA

Tread tyoe

√

Parking brake

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

Train formation 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 number

First-class seats

china-emu.cn

565

Second-class seats

china-emu.cn

（统型）

Manufacturer and batch

Manufacture by CRRC Nanjing Puzhen

CRH2G-4501 (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