CRRC YX17 traction system

CRRC YX17 traction system is a complete integrated railway traction system, composed of traction inverter, traction motor, control unit, auxiliary power module and sensor components. The system adopts advanced AC-DC-AC variable frequency drive technology, realizing precise control of traction torque and regenerative braking. It integrates real-time state monitoring, fault diagnosis and protection function, suitable for EMU or locomotive application scenarios. The system supports network communication with vehicle TCMS, with good overload capacity and environmental adaptability, realizing coordinated control of power, speed and braking.

We offer comprehensive life-cycle support for the traction system, covering equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.

Advantages of CRRC YX17 traction system

Integrated whole traction system solution, convenient for vehicle system matching and commissioning.
Advanced AC-DC-AC variable frequency control for precise traction and regenerative braking.
Built-in multi-dimensional monitoring, fault diagnosis and automatic protection function.
Excellent overload torque reserve for rapid acceleration and heavy-load startup.
Seamless communication interface compatible with vehicle TCMS network control system.
Strong environmental adaptability, stable operation under vibration and temperature fluctuation.

Technical Specifications

Traction Motor
Rated Power:	50 kW
Rated Voltage:	400 V
Rated Current:	106 A
Rated Frequency:	79 Hz
Rated Speed:	1546 rpm
Cooling Method:	Self-ventilation
Permanent Magnet Synchronous Motor
Rated Power:	50 kW
Rated Voltage:	350 V
Rated Current:	92.4 A
Rated Frequency:	76 Hz
Rated Speed:	1520 rpm
Cooling Method:	Frame air cooling
Mounting:	Vertical

coming soon

Model	Power	Rated Voltage	Rated Current	Rated Speed
CDZD104	166 kW	300 V	250 A	2200 rpm
YJ150A	180 kW	1100 V	N/A	4779 rpm
YQ190	190 kW	1050 V	131 A	1800 rpm
YX17	50 kW	400 V	106 A	1546 rpm
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General Information of CRRC YX17 Hong Kong Tram Electric Drive System
Unladen Mass	12 t	Laden Mass	19 t
Starting Resistance	4×9.81 (N/t)	Running Resistance	(2.089+0.0394V+0.000675V²)×9.81 (N/t)
Curve Resistance	(800/r)×9.81 (N/t), r=Curve Radius (m)	Rated Operating Speed	30 km/h
Maximum Operating Speed	45 km/h	Maximum Tractive Effort	19.0 kN
Mean Acceleration	1.0 m/s² (0–30 km/h)	Mean Deceleration	1.0 m/s²
Electric Braking Distance	≤ 20 m	Wheel Diameter	Max. 838 mm, Min. 760 mm, Calculated: 799 mm
Gear Ratio	7.615	Maximum Gradient	8‰
Catenary Voltage	DC 550 V (360–630 V)	Total Vehicle Supply Current	≤ DC 250 A
Power Supply Mode	Pantograph overhead catenary, rail return earth	Auxiliary & Control Power Supply	DC 24 V
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General Information of CRRC YX17 Traction Motor
Rated Power	50 kW	Rated Voltage	400 V
Rated Current	106 A	Rated Frequency	79 Hz
Rated Speed	1546 rpm	Cooling Method	Self-ventilation
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General Information of CRRC YX17 Permanent Magnet Synchronous Motor
Rated Power	50 kW	Rated Voltage	350 V
Rated Current	92.4 A	Rated Frequency	76 Hz
Rated Speed	1520 rpm	Cooling Method	Frame Air Cooling
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General Information of CRRC YX17 Traction Inverter
Rated Capacity	220 kVA	Rated Input Voltage	DC550 (360-630) V
Rated Output Voltage	400 V	Rated Output Current	320 A
Rated Operating Frequency	79 Hz	Operating Frequency Range	0-124 Hz
Control Power Supply	DC24 V	Cooling Method	Forced Air Cooling
Overall Dimension	680×480×330 mm	Mounting Type	Vertical Installation
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Locomotive Traction Motor

Model	Rated Power	Rated Voltage	Rated Current	Rated Speed
YJ85A	1250 kW	2150 V	390 A	1365 rpm
YJ90A1	1275 kW	1391 V	620 A	1500 rpm
YJ116A	434 kW	1010 V	310 A	403 rpm
YJ157A	425 kW	1520 V	200 A	600 rpm
YJ170A	1250 kW	2150 V	380 A	1499 rpm
YJ245A	1226 kW	1391 V	590 A	1499 rpm
YJ277B/C	1430 kW	2300 V	435 A	1663 rpm
YJ286B	1225 kW	1660 V	477 A	706 rpm
YJ288A	1430 kW	2575 V	380 A	2008 rpm
ZD108	N/A	376 V	1180 A	463 rpm
ZD109J	530 kW	670 V	845 A	770 rpm
ZD110	235 kW	400 V	650 A	705 rpm
ZD126E	323 kW	500 V	710 A	740 rpm
YZ134A	N/A	850 V	635 A	930 rpm
YZ141B	291 kW	615 V	520 A	534 rpm
ZQDR310	310 kW	500 V	680 A	760 rpm
AC Traction Motor	68 kW	430 V	115 A	882.5 rpm
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Locomotive Main Generator

Model	Rated Voltage	Rated Power / Capacity	Rated Speed	Rated Current
JF204D1	507/770 V	3700 kVA	1000 rpm	4215/2775 A
JF217B	295/720 V	1600 kVA	1800 rpm	3130/1283 A
YJ117A	2100 V	4480 kW	1000 rpm	1296 A
YJ257	1160 V	345 kW	2000 rpm	191 A
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AC motor

Motor Model	Rated Power	Rated Voltage	Rated Current	Rated Speed	Insulation Grade	Rated Efficiency
CDJD113 AC traction motor	520 kW	805 V	478 A	513 rpm	200	91.50%
CDJD114 AC traction motor	378 kW	830 V	340 A	5998 rpm	200	92.50%
CDJD114B AC traction motor	480 Kw	660 V	560 A	493 rpm	200	91.50%
CDJD115 AC traction motor	330 kW	690 V	370 A	596 rpm	200	91.50%
CDJD116 AC traction motor	125 kW	550 V	157 A	2685 rpm	200	92.50%
JD158 AC traction motor	300 kW	488 V	476 A	5329 rpm	200	91.37%
JD159A AC traction motor	200 kW	1248 V	112.2 A	2172 rpm	200	94%
JD160A AC traction motor	1225 kW	1375 V	598 A	1720 rpm	200	94.50%
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Main generator

Motor Model	Rated Power	Rated Voltage	Rated Current	Rated Speed	Insulation Grade	Rated Efficiency
CDJF201 Main Generator	1400 kW	265/780 V	3045/1035 A	1800 rpm	H	95%
CDJF208F Main Generator	1800 kW	1015/1250 V	1023/831 A	1000 rpm	H	95%
CDJF212 Main and Auxiliary Generator	4000 kW	1346 V	1716 A	1000 rpm	200	96%
CDJF213A Main Generator	2200 kW	321/780 V	3955/1630 A	1800 rpm	H	96%
CDJF219 Brushless Excitation Synchronous Generator	620 kW	1170 V	336 A	1800 rpm	H	N/A
JF204DZ Main Generator	3700 kW	508/770 V	4210/2775 A	1000 rpm	H	95%
TQFR-3000 Main Generator	3000 kW	438/613 V	3936/2805 A	1100 rpm	H	85%
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The company’s rail transit products have evolved from initially focusing on diesel locomotive motors and electrical control products to electric locomotives, and now to high-speed trains and high-power locomotive electric transmission systems.

The company has established R&D platforms for electric drive systems, including motors, converters, power modules, IGBTs, and system integration. The independently developed electric drive system for the 350 km/h China Standard EMU marks Yongji Electric Machinery Co., Ltd.’s complete mastery of the core technologies for EMU electric drive systems, achieving a leap from “Made in China” to “Intelligent Manufacturing in China.”

The company’s railway mainline locomotive electric drive products currently cover more than 10 models of locomotives, including the HXD2 and HXD3 electric locomotives and the HXN3 diesel locomotive. The company’s developed EMU traction motors and control systems currently cover more than 10 models of domestic EMUs, including the CRH2, CRH3, and CRH5, holding nearly half of the domestic market share.