ryan125hst
Established Member
I travelled to Edinburgh last week on an Azuma in first class and noticed that every time we went through a neutral section, both my laptop, which was plugged in to the 230V socket, and my phone, which was plugged into the USB port, stopped charging until overhead power was restored. This was a little frustrating when trying to work as my screen went black for a second or two when my laptop lost power before doing the same thing again when power was restored.
Curiously, the 225 set I returned home on had no such issues and my laptop didn't stop charging at all as we went through a neutral section.
I was always under the impression that the 225's (and HST's) power their sockets through inverters that are connected to the carriage battery. Therefore, while the battery will stop charging when the Electric Train Supply cuts out as the train goes through a neutral section, the battery will be able to maintain the supply to the sockets.
Do the Azumas not have inverters? Or were the ones on my train incorrectly set to load shed immediately when overhead power is lost?
Curiously, the 225 set I returned home on had no such issues and my laptop didn't stop charging at all as we went through a neutral section.
I was always under the impression that the 225's (and HST's) power their sockets through inverters that are connected to the carriage battery. Therefore, while the battery will stop charging when the Electric Train Supply cuts out as the train goes through a neutral section, the battery will be able to maintain the supply to the sockets.
Do the Azumas not have inverters? Or were the ones on my train incorrectly set to load shed immediately when overhead power is lost?