In today's subway system, many rail applications are critical loads that require uninterruptible power of suitable quality and can not tolerate even the briefest lapse in power flow. 

Ningbo Rail Transit is the second largest transit system in east China and the purchasing department is looking for a custom power system for line 1- line 4.

In 2019, the ETC（Electronic Toll Collection）system of all sections of Dongguan Expressway, an important high-speed trunk line in Guangdong Province, needs to be upgraded. 

The entire line required more than 80 sets of integrated outdoor power cabinets.Kstar successfully won the bid！

Hangzhou Metro is a rapid transit system that serves Hangzhou in Zhejiang province, China. 

There are currently three lines in operation: Line1, Line2 and Line 4, which adopted Kstar reliable power solutions including UPS, track distribution system and Lead-acid batteries to secure the power supply of its communication system.