Summary：Good news has come recently from Hangzhou that Hunan CSR Times Electric Locomotive Co., Ltd. CSR Times under CSR Zhuzhou Institute Co., Ltd. CSR ZELRI has won an order for 28 trolley bus systems.

Good news has come recently from Hangzhou that Hunan CSR Times Electric Locomotive Co., Ltd. CSR Times under CSR Zhuzhou Institute Co., Ltd. CSR ZELRI has won an order for 28 trolley bus systems, marking a breakthrough in the batch supply of the company’s trolley bus system in Hangzhou.

 
According to sources, trolley buses went into operation in Hangzhou in 1961. As trolley buses are inferior in motility due to the restriction of power grid distribution, and cannot move without power, Hangzhou’s trolley buses have decreased progressively in recent years from seven routes in their heyday to one route and 53 units at present, and have generally served over age.

 
The 28 trolley bus systems in the order are dual-source AC drive systems, and buses with such systems are driven by power from aerial power grid or lithium-ion battery packs. During bus operations, power grid recharge buses instantly, battery packs can sustain buses for some 30 km more when buses are disconnected from power grid, and buses have sufficient power for operation even under special circumstances such as road construction, thus boosting their motility. 

 
Owing to their superior dynamism, stability and reliability, up to 580 trolley bus AC drive systems of the company have been used widely in cities like Beijing and Guangzhou.