R
Richard3009
Looking for a 240v /110v control transformer, all in needs to do is drive 10 relay coils, typically what size would be specified for a panel to be built
Discuss Control Transformer in the UK Electrical Forum area at ElectriciansForums.net
But in the context of a 3MW variable speed drive......Not enough information. 500VA is liable to be way over sized....
But in the context of a 3MW variable speed drive......
On what basis?Then I'd say you've probably undersized it.
Nor would I.You can’t just come out with a glib statement of 500VA will suffice.
The amount of cooling fans, etc... would quite quickly eat that up.
The last 2MW VSD install I designed used a 1500va 110tx and a 5A 24VDC PSU.
Nail on head.OK we don’t know what the OP is proposing to use.
Because that is generally the minimum size we use.So why even mention 500VA?
No dispute with that.I’m anything but sunshine.
Good advice. No dispute with that either.If you noticed I told the OP to calculate the loading.
It was a passing comment on what we do and the information wasn't, as you suggest, totally irrelevant. I gave contact details for a UK supplier of good repute.Unlike you I didn’t give totally irrelevant information.
And I made no comment about what we stock so your comment is an irrelevance.What you stock in your stores is up to you, it has no bearing on the OP’s question.
Unlike you, I make no presumption about your occupation.Unlike you I’m not a salesman.
Interesting comment.I note you didn’t give any real figures when asked about payback periods for energy saving.
Then perhaps I have something for you to listen to.Now if your offering a patented product that is unique and cannot be legally copied and gives large savings then I'll listen
The trend of Energy efficient materials actually goes against the grain of inflation and average rise and fall of goods in that the initial competition is fierce and this ensures a fast price fall over several yrs.
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