In power plant when one battery ban 1

[Paramji]

In power plant when one battery bank voltage start decreasing and other battery bank is in spare condition then how will we take other battery bank in line ? Please tell if anybody have any idea about this.

 

[xnuke]

Use what is called a "best battery selector," which is a set of power diodes that cause the battery with the higher voltage to serve the load.

xnuke
"Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged.
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[Palletjack]

Question…
Are both banks the same Ah rating?
Why is one bank voltage decreasing? Improperly sized or connection/age issues?
You may find they keep flip flopping back and forth if the bank is too small.

 

[Paramji]

@Palletjack . Sir both bank have same rating . Please tell what will we do in that case?

 

[BrianPetersen]

None of the rest of us know what you mean by "power plant". None of the rest of us know what the intended function of this battery bank is. None of the rest of us know what sort of batteries you are talking about. None of the rest of us know what sort of system is in place for keeping the batteries charged.

... except maybe the mind readers.

... of which I am clearly not.

More information...better answers.

 

[Palletjack]

For one calculate your required loads.

Back in the day old relays didn’t require high Ah batteries. Now with newer relays, satellite clocks, SCADA applications, even communications running from station batteries the Ah draw is much larger.

I would worry about why the other battery bank is decreasing voltage or why the charger won’t keep up with amp draw before I worry about a switching device.

 

[LittleInch]

I'm with Brian here. No details to work with.

Please provide some.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Ethnan]

@Paramji,

I expect the system the batteries are connected to, to automatically detect a low voltage battery condition and do a switch-over to the spare. I say this because of the presence of the spare you mentioned in the system. The spare is useless if the system cannot automatically switch over when required. So I guess, your question is how to configure your system to be able to do this for the power plant. In which case, you need to provide details of this system including name of device, manufacturer, model, serial number ....it's possible as is always the case, that someone here have worked on such equipment before.

Cheers

 

[Paramji]

@Ethnan Sure sir I will give you the system detail. Thankyou for giving attention

 

[Paramji]

Why micom p127 or micom p122 relay used on ht panels instead it has other micom specific relay ?

 

[BrianPetersen]

Take two. The rest of us have no clue what you are looking at, what you are trying to do, or even what the meaning is of what you just wrote.

Those are Schneider Electric over-current and earth-protection relays. Now, explain to the rest of us who haven't the faintest clue what you are looking at and what you are trying to do, what it is that you are looking at and what you are trying to do.

Use MANY MORE WORDS. Explain. Pictures, if necessary. Diagrams, if necessary.

More information = better answers.

 

[davidbeach]

Wouldn't ever even consider micom. So, how's that?

I’ll see your silver lining and raise you two black clouds. - Protection Operations