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Author Topic: Why do I need 3 phase electricity to install P.V. ?  (Read 1181 times)
DonL
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« Reply #30 on: April 22, 2019, 09:40:04 AM »

The Zappi charger offers the facility to monitor total load using a CT on the supply and decreases the charge rate to the car if the supply reaches a limit you can set.  So if your car is on charge and the total current reaches the preset value it will cut back on the charge rate to the car to respect the limit. When total supply current drops as other high load devices turn off the charge rate to the car ramps back up.
I have this working, in a slightly modified form to prevent possible overloading on the supply to outbuildings.
It works and I have watched it turn down and balance the current when I turn on a fan heater.
I'm unsure how this is considered in terms of diversity and the regs but it certainly works in practise.
Don
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