AmakaRuby:


250-300, 3.5kva to 5kva

You won't find at that price, but raise your budget to around 350k and you'll have options under 3.5KVA.

loluskysat:
So why do you still have a spark when you connect your inverter to the battery?

There is a difference between in-rush current and surge current.

Interesting

available for sale

SRNE & growat

let me know what you need

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If you still experience a spark above the capacitance of your inverter after a pre-charge circuit or resistor is introduced in your setup and start-up, then something is amiss.

Of course there's a difference between in-rush current and surge current in devices and circuits, you should always outline your arguing points.
Just as you simply put it out, you should have also explained the difference and how to protect your devices from both types.

It would be interesting to see your analogies of both types of current and how you could use an SPD to resolve the IN-RUSH type of current.

I don't know about others here, but despite my knowledge, I am here to learn more.

loluskysat:
So why do you still have a spark when you connect your inverter to the battery?

There is a difference between in-rush current and surge current.