CNR Changchun QKZ3 (CCQG2000)

The CNR Changchun QKZ3 (CCQG2000) is a three-section, 70% low floor tram/light rail vehicle developed by the then CNR Changchun. The QKZ3 was manufactured in 2006 and 2007 for Line 3 of Changchun Rail Transit and was the first-ever 70% low floor LRVs developed at Changchun Railway Vehicles (the earlier series of Q6W LRVs were built by XEMC as Changchun did not yet have the technology to do so). This LRV was officially released on 18th December 2007. At the time, this was an highly innovative LRV (for China), featuring a modern design and also being the lightest of its class, as it had an aluminium body. LRVs #2001 to #2019 used ABB BORDLINE CC400 IGBT-VVVF, #2020 used Dalian Traction CNTRAC TC-300/H-01（220）IGBT-VVVF, with all using Skoda traction motors.

To improve the carrying capacity of Line 3, it was decided in the early 2010s to launch the QKZ3 into permanently coupled sets. In 2014, the first permanently coupled QKZ3 was launched into service. However, with the subsequent arrival of newer CCD3001 series LRVs, these older coupled sets were no longer required for service. As a result, these coupled sets now form the reserve for Line 3 and are very rarely operated in service.

Formation/编组：Mc+Tp+Mc; Mc+Tp+M=M+Tp+Mc（重联后，after coupling）
Length/全长：28.32 m（三模块 three section）
Width/宽度：2650 mm
Height/高度：3600 mm (excluding pantograph 不包括受电弓)
Operating speed/设计运营速度：70 km/h
Axle load/轴重：11 t

QKZ3 (CCQG2000)为北车长春轨道客车制造的三模块70%低地板有轨电车，是长客的首次开发并制造的70%低地板有轨电车。研发过程从2006年开始，于2007年12月18日正式发布，是国内当时技术最先进，外形最美观，重量最轻，研制生产周期最短的低地板轻轨列车，并填补了长客对于轻轨列车的空白。原编号2001（001）至2019（019）采用了ABB BORDLINE CC400，2020（020）采用大连电牵CNTRAC TC-300/H-01（220）；所有列车均采用斯柯达运输牵引电机。

首列QKZ3重联车于2014年上线；随着CCD3001系列列车上线，三号线的配车变得充足，因此重联QKZ3转为冷备车，不再日常上线。

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