How to switch on and switch off 3000V?

[bomba]

I need to generate square wave from a 3000V capacitor charged, the problem is how to switch on and off, which kind of component can do it?

Maybe a power thyristor

Any comments are welcome

Thanks in advance

 

[cancel]

depends on frequency ... vacuum relay is option for switch on and of

 

[truebs]

Certainly thyristors can be used.
there are other power semiconductor devices also available like IGBT which can work at such a high voltages. (quite expensive ).

Or you can step down you voltage for switching action and then again step it up (if your application permits ).

 

[bomba]

I need to switch on , stay on 1uS and later switch off.
I can't use ste up converters.

Thanks

 

[hock]

i think you will have to use some kind of magnetron switch.
if you just want to generate a 1us pulse of kv range then you can use a pulsar in lower voltage range using mosfet and step it up to the required voltage using a pulse transformer.
you can use spark gap as well if your circuit turns off on its own.
what king of application you are looking for?
Hock