vagrantno13

回覆 10# PPLd

hong kong's Volt is 220V or 380V, Volt can't not maximum, my example 220V 32A, but  volts are about 208-215 ~ 6.6Kw.

kanduki

回覆 10# PPLd


11kW鎗嘅電源係220V*16A*3P
架車淨係食到單箱AC的話咪就得11kW嘅三分一

三相又得7kW的話 咁好可能係向排得10A嘅掣度攞電

vagrantno13

回覆 12# kanduki

要看每架電車AC 上限kw, 老婆公司三相充電盒可選20 或32A , 老婆同事atto2 只能食盡11kw, 而我smart#5 可食22kw.

PPLd

回覆  PPLd

hong kong's Volt is 220V or 380V, Volt can't not maximum, my example 220V 32A, but  vol ...
vagrantno13 發表於 2026-6-17 09:22

    I dont understand what you are talking about.
What is "can't not maximum"?
Anyway that havent solved my question of why only half "尤其當架車嘅OBC得單相6.6kW充電速度就祇有3.3kW"?

PPLd

回覆  PPLd


11kW鎗嘅電源係220V*16A*3P
架車淨係食到單箱AC的話咪就得11kW嘅三分一

三相又得7kW的話 咁 ...
kanduki 發表於 2026-6-17 12:29

    Yes, obviously that commercial building limited output to 10A to enhance efficiency which I like.  So I was giving you a real life example of not a must to get 11kW with 3P.

You said if only 1-phase then our intake is much lowered (in fact by sq rt 3 not 1/3 assuming near ideal pf).
But that havent solved my question of why only half "尤其當架車嘅OBC得單相6.6kW充電速度就祇有3.3kW"?
He said he has 6.6kW 1p.  Why would the car suddenly drop to 3.3 when he can take 6.6?
Where did you calculate the 3.3?

billyyau

回覆 14# PPLd


佢應該係想講嗰啲三相16a嘅充電機，唔支援三相充電的電動車就只食到單相16a嘅意思
不過重點係邊有人會安裝呢啲機，一般私人位都會安單相32a機，一日充八個鐘已補回超過300公里，的士都夠用啦

kanduki

回覆 16# billyyau


以前未拆果啲政府多層車場會咁裝
我估應該怕個個都泊單邊位充電
搞到全部車都扯埋同一相電

而家啲所謂有250kW嘅快充場
都係成個場得一架車充先有250kW
到夜晚收費平時先五架車一齊插鎗起錶
咁就每架先分得果50kW

PPLd

回覆  PPLd


佢應該係想講嗰啲三相16a嘅充電機，唔支援三相充電的電動車就只食到單相16a嘅意思
不過重點 ...
billyyau 發表於 2026-6-20 08:26

    Even 3-p to 1-p while maintaining same 16A, it is still not halved from 6.6kW to 3.3kW.

小馬馬

如果作為車位業主+EV車主，
好現實嘅考量，用幾皮嘢只係安到11kW、甚至7kW嘅電樁，
吸引力好有限…………

kanduki

如果作為車位業主+EV車主，
好現實嘅考量，用幾皮嘢只係安到11kW、甚至7kW嘅電樁，
吸引力好有限………… ...
小馬馬 發表於 2026-6-21 08:41

如果一年揸到兩萬公里
架車每公里又要兩個半油錢的話
咁每年淨油錢都成五皮嘢

隨便問過Ai車位有插蘇充電的話
每個月租值可以增加半叉到叉半嘢到