Battery Charger

That's about the most obtuse question lately.

battery charger(accumulator)

breaker trip coil

These are terms which are unfamiliar to me. I do not believe that I am the only one who is befuddled by them.

What the hell are you talking about????????

You seem to be looking from the wrong point of view, the battery is your main line of defence and should be maintained accordingly.

As to the charger supplying the trip circuits. With older charging systems the answer will very often be NO. Modern chargers have the ability to maintain a base load to power protection relays as well as charge the battery.

Look after your batteries! Battery & charger failure alarms should be fitted.

I think I know what you are talking about (having done this before in a mobile substation design), BUT shouldn't your power supply powering your protection and control electronics (including the circuit breaker trip coil) be a no-break power supply/battery charger type powered off a feed from the main or auxiliary feeder and alternatively of the battery in the event of loss of main or auxiliary feeder supply?

In this case the no-break power supply/battery charger will still work in the event of a auxiliary feeder or battery failure.

Have a look at the battery charger and circuit breaker trip coil data sheets for more advice.

Some DC breakers have trip coils, but the way you are asking the question is confusing - can you get enough current from the charger (I don't know what an accumulator is, save a capacitor) alone to trip the coil? Yes if you over charge it it will trip the coil (burn it out, severe the circuit).

With DC breaker trip coils, all the amps are flowing through all the time...so.. .you wrote "in case the battery fails" The smart chargers won't overcharge to trip the coil, nor will they overcharge your battery. If your battery fails, why would you want/need the charger on it and then why would you care if it could trip the coil (since the battery is alread failed..)? I need clarification to assist any further...

my question is with out a battery can I activate a breaker ie with the out put of a battery charger alone .hope u clear my question

It would be possible, theoretically, if your charger output is higher than the breaker threshold; however, I have never heard of that...unless the electrician made mistakes in choosing the equipment.

I installed a solar array with battery bank and 6Kw inverter for 100% of my off-grid power. I have a gen-set to a charger for emergency charging if my batteries need it in the dead of winter. It is impossible for the charger to "break" my fuse (slow burn fuse, not a breaker)...but I purchased and installed everything correctly.

You could send us the specifications of your charger and your breaker and most of us on CR4 would be able to write back and assist with an answer.

Can we start from the beginning here.

Are we talking about HV shunt trip coils or a maintaining coil?