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Frequently Asked Questions
What makes a DC unit fundamentally different?
It contains the charger itself.
Conversion happens in the cabinet.
The vehicle's own charger is bypassed.
Current goes to the battery directly.
Everything else follows from that.
Why does the connection take so long to arrange?
Because the load is substation scale.
One position can exceed a whole site's supply.
A new transformer is often required.
The network operator sets the timetable.
Equipment lead time is rarely the delay.
Do these cabinets need cooling?
Yes, continuously while working.
Losses at these currents are large.
Fans and sometimes liquid loops carry the heat away.
Filters need cleaning on a schedule.
Dust is what kills the electronics.
Are they too loud for a residential edge?
They can be, and it is measurable.
Fan noise rises with load.
Night-time limits are the binding ones.
Orientation and screening help.
So does siting away from bedroom windows.
Will a vehicle really charge at the rated power?
Briefly, and only in the right conditions.
Acceptance is highest when nearly empty.
It falls steadily as the battery fills.
Cold batteries also refuse current.
The average is well under the headline.
Why are some connectors cooled?
To carry high current in a cable a person can lift.
Copper area is what limits.
Cooling lets a thinner cable pass more.
Without it the lead becomes unmanageable.
The trade is a pump and a fluid circuit.
Is this the right choice for a workplace?
Usually not, if cars stay all day.
Dwell time already covers the need.
The supply cost is hard to justify.
Transit and destination sites are different.
There the vehicle leaves as soon as it can.