I am working in the field of electric railway
the overhead wire carrying 600 v dc
I want a circuit to convert 600 v dc to 24 v dc
please help
by the way i am a mechanical engineer , mean i want some simple explanation
thanks,,
Why do I think that this site has poor translation to English.
first of all : thanks for reply R!f@@Welcome !
It is possible but I do not think we can't help you.
Read the toS.
But I'd say this, you might need a very high power resistor. it depends on your current requirements.
get a 440 ac to 24 vdc switch mode power supply and feed it the 600 volts dc. the rectifiers will pass the dc and the supply will work the same as if it had 440 volts ac going in.
sorry for being lateHello,
The following unit might be the solution for your question:
http://www.newark.com/powerex/vla31...2w/dp/73R7449?aa=true&categoryId=800000005767
Here is the datasheet:
http://www.pwrx.com/pwrx/docs/VLA312-2425.pdf
Bertus
Do a search for "surplus sales of Nebraska".
They may have what you need. Then download the PDF & do some research on the company (IF it's still in business) and show your supervisor. Check & see if it's acceptable. MANY items are made when the USA was a manufacturer (rather than after NAFTA passed) & therefore out of business. IF the materials have to be approved by certain safety organizations: you may be out of luck.
actually i searched in that company mentioned above but unfortunately i didn't find itBut actually doing it (dropping it down) is not too tough, especially if the current is low.
ceramic resistors & heavy bridge rectifiers are available from the above without paying big $. The issues I would imagine are safety, safety, safety & approval rating from various oversight organizations.
the circuit mentioned to convert 220 v ac not 600 v dc , by the way the max. amp in this circuit is 100 mA.I had seen this circuit and I wanted to try it someday. It may suit your needs:
http://www.eleccircuit.com/the-variable-high-voltage-power-supply-0-300v/
You don't need the Transformer and the Bridge since you are already DC. You would need an appropriate 600v capacitor. You only need the components after the Bridge.
If you try it, post the results. I want to know if it works.
by Duane Benson
by Duane Benson
by Duane Benson
by Aaron Carman