Electronics > Projects, Designs, and Technical Stuff
where does one buy a 600VDC 10kW power supply?
Simon:
--- Quote from: trobbins on February 09, 2020, 10:25:45 pm ---Given the application is not distributing the DC then that certainly alleviates a variety of safety concerns.
And yes if you have no in-house electrical engineering capable of setting up a simplified supply, then a commercial supply that complies with all applicable standards (whether it be for mains connect aspects, or safety to operators, or something related to connectors if you are not using fixed wire to the load equipment) is appropriate.
I'd suspect that safety related aspects of the total system would need to be competently assessed and documented, as a way to cover identifiable risks, and that mitigating those risks comes back directly to the specs of the power supply just as much as the connection and use of the power within your widget. Just one example is whether there is active monitoring of the DC rails with respect to an earth fault - the power supply may include that - if not then commercial devices like from Bender can be used for interlocking.
--- End quote ---
Indeed. I am the only skilled person they have. I have confirmed I am happy to work with 600V given that I have done mains work to my knowledge this is as dangerous as in, "it kills". We do vehicle stuff so assuming no earthing in the vehicle there would be no earthing in the test. Should we temporarily earth any metal body and use a bender to protect from any faults on the DC side like an RCCD would do on the AC side?
The whole thing will need to be risk assessed and measures put in place to keep unauthorized people out either by physical means or signs and instructions on this being a no go area (discipline is lax where I work).
Simon:
--- Quote from: Phoenix on February 10, 2020, 04:24:23 am ---We recently got an ITECH regenerative DC supply https://www.itechate.com/, they do plenty of other supplies to and perhaps a bit cheaper than some of the big names. Website isn't great; but their support was pretty good when we had some initial problems with a faulty internal fan causing the unit to trip.
I've also used Magna Power in the past and they were fine too.
https://magna-power.com//
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Yes a customer of ours apparently has just had a load of ITECH stuff put in. I have been told by one of the distributors that he can't see how they can be CE marked but the guy selling them said hat there are 2 itechs, the other is RS in house brand or something to that effect.
HighVoltage:
--- Quote from: Simon on February 10, 2020, 07:35:22 am ---Indeed. I am the only skilled person they have. I have confirmed I am happy to work with 600V given that I have done mains work to my knowledge this is as dangerous as in, "it kills". We do vehicle stuff so assuming no earthing in the vehicle there would be no earthing in the test. Should we temporarily earth any metal body and use a bender to protect from any faults on the DC side like an RCCD would do on the AC side?
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I am surprised you ask this question!
That means no person in your company has basic training with this kind of power?
There are courses offered now for the car repair business for the correct handling of electric vehicle safety in the repair shop. In Germany, a car repair shop is not allowed to work on electric vehicles, without having done this safety course. They are not even allowed to repair a bumper!
I highly recommend such safety course before starting work on this project!
trobbins:
--- Quote from: Simon on February 10, 2020, 07:35:22 am ---We do vehicle stuff
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Does this mean battery charging ?
I'm not across recent EV power connections as to whether the power supply has all the smarts, or the vehicle has total control of the power flow/protection/charging profile.
Simon:
--- Quote from: HighVoltage on February 10, 2020, 09:26:50 am ---I am surprised you ask this question!
That means no person in your company has basic training with this kind of power?
There are courses offered now for the car repair business for the correct handling of electric vehicle safety in the repair shop. In Germany, a car repair shop is not allowed to work on electric vehicles, without having done this safety course. They are not even allowed to repair a bumper!
I highly recommend such safety course before starting work on this project!
--- End quote ---
I did indeed suggest such a course. But do these courses teach you how to work with high voltages or how to set them up as well? It's like the wiring regulations for buildings, they don't teach you how it works just how to install it.
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