Please or Register to create posts and topics.

What is pre-charge and how it works...

philtao@philtao

Moderator

#1 · 02/09/2021, 10:27 am

This is an open discussion on pre-charge and the article What is pre-charge and how it works...

Michel Leblais and Dan W. have reacted to this post.

Skokie@skokie

Subscriber

#2 · 02/02/2022, 3:42 am

I am just looking for the right resistor to buy. In the article is written 7Ohm, more than 30W @12V.
I found this one here https://www.reichelt.de/dickschichtwiderstand-radial-30-w-8-ohm-1--cad-mp930-8-00-p236935.html

Can I use it for precharging a Victron Multiplus Inverter?

philtao@philtao

Topic Author

Moderator

#3 · 02/02/2022, 7:54 am

That will work for a 12 volt installation (actually about 13.2 volt).

Pre-charge current will be: 13.2 volt / 8 Ohm = 1.65 A

And power dissipated = 13.2 x 1.65 = 22 W