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1500A Current Transducer Test Rig - Suggestions

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japasetelagoas:
Hi everyone,
I was thinking about developing this project at the company that I currently work at which involves building up a new current transducer test rig.
We assemble hall effect based current transducers and at the moment we're using a very crude device to test them, in order to get close to its 1500A range we use a huge toroidal transformer with a separate coil wrapped around it in order to amplify the current.

I wanted to make something a bit more professional, where I could test several transducers at once without the need to coil up the transformer, in other words, having proper 1500A running through the CT's. My main concern here is what kind of load I should use in order to reach such high currents while still trying to maintain the device as portable as it gets (by portable I mean, can be put on caster wheels and moved without the need of a bunch of guys or forklift).

Any literature are more than welcome.

Thanks!

SG-1:
We have equipment used to perform heat run tests for switchgear bus that can produce 4000A.  It uses multiple CT drivers, cooling fans & locomotive cable.  You do not need any load other than the cable or bus bar under test. You need to talk with a Current Transformer manufacturer as this type of CT is not usually advertised for sale. 

You may be able to find a large used dry type transformer & operate it with the secondary shorted out through your load.

Either way you are going to need a really nice set of casters to make it portable.

Fletchez:
The most important thing for knowledge in this forum.

Zero999:
Assuming it's AC, just use a transformer. You'll probably need to wind several secondary coils and connect them in parallel.

If this is DC, it's much more difficult. A transformer and MOSFET rectifier could be used, with a huge choke for the filter. A three phase input will be required and a 12 pulse or more rectifier to keep the ripple as low as possible.

japasetelagoas:

--- Quote from: Hero999 on July 19, 2018, 08:05:38 am ---Assuming it's AC, just use a transformer. You'll probably need to wind several secondary coils and connect them in parallel.

If this is DC, it's much more difficult. A transformer and MOSFET rectifier could be used, with a huge choke for the filter. A three phase input will be required and a 12 pulse or more rectifier to keep the ripple as low as possible.

--- End quote ---

Unfortunately it's DC, I'll do some reading on the things you've mentioned though. Thanks for the answer.


--- Quote from: Fletchez on July 19, 2018, 07:56:07 am ---The most important thing for knowledge in this forum.

--- End quote ---

Didn't quite get your point.

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