I have a semi-serious hobby project with a couple of friends where we need to charge a pulse operated capacitor rated to around 4kV with 1500nF capacitance.
For this I need a high voltage supply and correct configuration to do the charging. Now I've done this before at around 300V but simulating this process with multisim is nontrivial because in this case I don't know the inner workings of kV-level sources the and now I have some questions:
If I were to use an off the shelf high voltage source of around 10kV maximum voltage and 20W power, how will the system react when the source is connected, possibly through appropriate resistor? Someone suggested me that the namely excessive 10kV would immediately break the capacitor as the voltage drop is all seen through the insulation inside the capacitor. I think this is incorrect and the voltage drop will mostly happen inside the HV supply, but I'm not entirely sure.
Let's use this cheap individual as our HV source example: https://www.ebay.com/itm/New-High-Voltage-Electrostatic-Precipitator-Power-Supply-With-Output-300W-30KV/163264230335?epid=27023884036&hash=item26034e73bf:g:lvwAAOSwQWxbIdWA:rk:1:pf:0
-I- Will an excess voltage (measured at the source) break the capacitor before actually charging it?
-II- If not, how does a typical HV source react to the situation? If connected straight to a capacitor (with effectively zero resistance), will the source just see the connection as about short circuit and promptly break or blow a fuse? Or will it just slowly start to ramp the voltage up, until the external capacitor is at equal voltage to source target (or until the capacitor breaks)