tom91 wrote: ↑Sat Aug 29, 2020 4:15 pm
JaniK wrote: ↑Sat Aug 29, 2020 3:58 pm
So to test if you need economiser on random contactor, just run it for a while on the table and check if its hot?
And check amps.
Is it that easy?
Any contactor drawing anything more then 1 amp usually will run hot, so thats the first tale tell sign.
Went ahead and tested Ford Focus Electric 23kWh contactors.
Main HVBAT+ TE 2098952-2
It Will disconnect at 1.2V0.3A
Reconnect happens at 6.6V1.56A
Draws 2.7amps at 11v stepping down from 12V el-cheapo.
When adjusting the voltage down to point where current is 1A, it will take 4.2v
Charge/precharge contactors TE 2138551-3 draw
0,7A@12V
0,35A@6V
Cutoff 0,16A@2.8V
Cutin 0,28A@4.8V
Measured with a DIY adjustable 1-12V power supply made with about second cheapest semi ready parts on ebay, so not the most accurate but still wanted to share.
Any opinions are my own, unless stated otherwise. I take no responsibility if you follow my way of doing things and it doesn't work. Please double check with someone who knows what they are doing.