Voltage Stabiliser

[sponge23]

Hi all, do any of you have any experience of voltage stabilisers? Can they be fitted on sub-mains, or do they need to be at the origin?

Thanks in advance

 

[Pete999]

Used to fit them on most of the installs I did, you are only conditioning the installation after the stabiliser so it shouldn't be a problem providing it is sized correctly, what sort are you using?

 

[sponge23]

Looking to condition 2 D.B's which supply some box manufacturing machines (designed for european voltage).
There are 2 large P.V. arrays further down stream which make the voltage fluctuate. Voltage at the origin is typically at +240V.

 

[sponge23]

Looking to use the Marshall Tufflex ones. What would you recommend?

Thanks.

 

[Pete999]

Looking to use the Marshall Tufflex ones. What would you recommend?

Thanks.

They make trunking don't they? Can't recall the type we used it was a long time ago

 

[ImpededLoop]

If you're looking at voltage optimisation bear in mind that most units just reduce the voltage by a percentage. Therefore if the incoming voltage is fluctuating, so will the outgoing voltage.

They are basically step down transformers. Some can supposedly maintain a steady output voltage.

 

[Knobhead]

Static induction regulators will maintain a steady output but they’re not cheap. Have a look for PowerPerfector.

A word of warning, there was a lad on here had trouble with one as the tapping of the secondary winding had been set too low. Not a big problem if you know how to solve it.

They market it as “cutting edge technology”, I found the same thing in a 1938 copy of Stubbs electrical encyclopaedia.

 

[ElectroChem]

They market it as “cutting edge technology”, I found the same thing in a 1938 copy of Stubbs electrical encyclopaedia.

Someone needs to make a holesaw that will hold a cutting edge for 77 years, I'm sick of replacing mine!

 

[Knobhead]

That is wishful thinking.

 

[Lucien Nunes]

What is the specific problem you want to address by installing these units? What is the voltage at the machine input under normal operating conditions, and what do the makers specify?

Also, you say the PV arrays are downstream, which I take to mean on the load side of the proposed voltage stabilisers. That might not be permissible - needs clarification.

 

[Charlie_]

You could just use a transformer

 

[ImpededLoop]

You could just use a transformer

I mentioned that in an earlier post:

If you're looking at voltage optimisation bear in mind that most units just reduce the voltage by a percentage. Therefore if the incoming voltage is fluctuating, so will the outgoing voltage.

They are basically step down transformers. Some can supposedly maintain a steady output voltage.

 

[shanky887614]

I mentioned that in an earlier post:

the problem with most transformers is the output would vary depending on the imput.

an upfront continuous ups would work if you could find one that takes 200-415 volts in and outputs 240/415 out.

basically the fluctuating voltage would just affect the primary side of the ups (there are different types of ups and not all do this)

 

[ImpededLoop]

the problem with most transformers is the output would vary depending on the imput.

I mentioned that as well!!!

 

[Knobhead]

A static induction regulator is a transformer but the output doesn’t vary with the input.

I could post a drawing and explanation but what’s the point, the OP’s vanished.

 

[dansk]

Don't know enough on this subject but be careful with the PV, think most voltage stabilisers can't handle pv, check in solar forum for more clarification.

 

[Charlie_]

Just using a transformer will be fine.
the voltage will fluctuate +10% -6% here as it does abroad so no problem..
legally through harmonisation rules you shouldn't need to do anything

 

[Knobhead]

A transformer will not provide voltage stability. The O/P will vary with the I/P which isn’t what this question is about.

 

[shanky887614]

A transformer will not provide voltage stability. The O/P will vary with the I/P which isn’t what this question is about.

thats why i sugested a ups.

because the grid supply will technically just become the charging circuit and everything runs off the ups battery this problem is negated.

 

[Charlie_]

The OP also mentioned the supply is for equipment used on European system, therefore, doesn't need a voltage stabiliser