精品无码久久久久久国产,好吊操这里有精品,亚洲欧美中文日韩V在线观看不卡,午夜无码色情在线观看

Low Floor Tram HVAC

KLD40Y變頻空調(diào)機(jī)組  KLD40Y Inverter HVAC Unit

In 2016, improvement on 70% low floor tram HVAC sample was made. Rail type Hitachi inverter was used for frequency control of compressor.

This inverter already applied on many programs, with 11kW power, frequency range from 30~90Hz.It can realize step less speed regulation for compressor. In the test, the cooling performance was good, temperature changed smoothly, it's therefore more comfortable. The energy consumption is also 10~15% lower than fix frequency units.