Can you tell me what these are please.

[EdwardCurrent]

Hello All.

Can somebody please tell me if the blue 'things' are capacitors, and if so what is their purpose ? ( some sort of surge protection ? )

Many thanks.

Ed

 

[ricicle]

What is it on?

 

[RF Lighting]

What is it in?


Can you see anything written on the blue jobbies?

 

[EdwardCurrent]

They are inside the 'busbar chamber's, connected to each phase and neutral, going to earth I do believe.
(It was within a major data centre, if that is of any help)

Thanks Lads

I suppose you have spotted the loose blue conductor !

 

[ricicle]

More than likely mains filters then if they are connected to earth.

 

[EdwardCurrent]

Smoothing Capacitors ??

Thanks for your help.

Ed

 

[Space cat]

My suspicion is that they are surge arresters put there to clamp any high voltage spikes. In a pre-semiconductor age these would have been gas filled devices. They could switch at lightning speed and sink huge currents. The modern version is much more likely to be a transorb; a pair of zener diodes back to back. On the other hand they might be simple capacitors. There are some markings on the one second from the left that I can't quite make out. Can you elaborate?

 

[jj4091]

They are inside the 'busbar chamber's, connected to each phase and neutral, going to earth I do believe.
(It was within a major data centre, if that is of any help)

Thanks Lads

I suppose you have spotted the loose blue conductor !

& the loose brown & the loose grey