Way to start and stop an inverter

non-EV Solar, Wind and other renewable power sources
non-EV batteries and other energy storage stuff
Forum rules
Important!
This forum is for discussion of Non-EV matters.
Post Reply
hary
Groupie
Posts: 44
Joined: Sun, 07 Apr 2019, 03:40

Way to start and stop an inverter

Post by hary »

Hi everyone.

I've videos were people start or stop load already plugged in inverter from the inverter"s switch interrupter.

Is that a way to go with no bad side effect ?

Or should be the inverter started first, then plug the load, use it, unplug the load and last switch OFF the inverter ?

User avatar
coulomb
Site Admin
Posts: 4125
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: Way to start and stop an inverter

Post by coulomb »

Inverters seem to be happy starting with a load connected. So I don't think it matters.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

doggy
Groupie
Posts: 283
Joined: Tue, 24 Jul 2018, 09:59
Real Name: David Kerr
Location: Sydney
Contact:

Re: Way to start and stop an inverter

Post by doggy »

Hello Harold,
I have now used my inverter, which is almost the same as yours, quite a bit now. I have turned it on and off in all possible ways. When charging my EV from it, the BMS interrupts the battery connection to the inverter when any cell reaches 2.8V.

I can start the inverter with load attached or not. I can turn on the inverter with load attached then use the contacter to connect the battery. No problem.

Because the inverter "slow starts" when turned on (in any manner) everything seems fine no matter how I do it.

When running tools, heaters, fans etc I normally turn it on and off with the inverter remote switch.

Regards,
Dave

robeyw
Noobie
Posts: 1
Joined: Thu, 26 Dec 2019, 16:34

Re: Way to start and stop an inverter

Post by robeyw »

>Or should be the inverter started first, then plug the load, use it, unplug the load and last switch OFF the inverter ?

It depends highly on the inverter. Some have "soft start" to varying degrees. Starting it with an incandescent light won't be a problem but starting a motor will. Stoping is another mater. For a well designed inverter, I don't think it matters but I encountered one (from Yueqing Reliable Electric Co.) that would sometimes blow a MOSFET apart on shutdown so the best way to turn it off was to disconnect the DC input, leaving minimal stored energy in it for destructive purposes.

Post Reply