Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Batrium Safety
#1
Is anyone using a contactor in addition or replacement to the shunt trip with the batrium bms? I'm trying to figure out how I would disconnect the batteries in the case that the batrium failed or lost power.
Reply
#2
A contactor is just a high current relay.
A shunt trip is an accessory that is typically installed on a breaker that is designed to accept it.

They do different things, and are applied in different ways. As an example, a motor starter which has over-current protection can often times use BOTH in the same system for different reasons.

Regardless of what you choose to use, both will require some type of control system because by themselves, don't do anything. Often times, the Bartium system is doing the control. Your Batrium should be powered by your Powerwall and should not loose power.

If a contactor has the ability to be wired "fail open" or "fail closed", you could get creative with what might happen during a loss of power event.
Reply
#3
Breaker with shunt trip is designed for this. Contactor is designed when you switch back and forth
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)