550 uF, 1.5 kV capacitor

Physikfan, Wed Apr 05 2017, 03:42PM

This 550 uF, 1.5 kV capacitor is also a real heavyweight:

500uF2trim127x400
500uF1trim569x400

The energy when charging with 1.5 kV is:

Ec = 0.5 * 550 * (10 ** - 6) * (1500) ** 2 = 225 * (10 ** - 6) * 2.25 * (10 ** 6) = 506 Ws.

At the same time, this is roughly equivalent to the kinetic energy of a mass of 10 kg after a free fall of 5 m height at the time of the impact.

Comparing this with the energy of the 10 nF 200kV capacitor:
Ec = 0.5 * (10 ** - 8) * (200,000) ** 2 = 0.5 * (10 ** - 8) * 4 * (10 ** 10) = 200 Ws

It can be seen that, due to the small capacity of the latter (comparison: 10/550 000), the energy is about one-half smaller despite the high voltage (comparison: 200 / 1.5).
Re: 550 uF, 1.5 kV capacitor
Enceladus, Tue Apr 18 2017, 08:24AM

Do actually own this behemoth? She looks like a real firecracker for sure. Where did it come from?
Re: 550 uF, 1.5 kV capacitor
Proud Mary, Tue Apr 18 2017, 10:15AM

I see that there is not a shorting bar across the terminals and wonder what surprises such a monumental capacitor might have in the way of dielectric absorption/residual charge?
Re: 550 uF, 1.5 kV capacitor
Physikfan, Tue Apr 18 2017, 04:29PM

This capacitor was used in an ultimately unsuccessful experiment.
After many years I could save this capacitor from being scrapped.
I will attach a shortcut to this capacitor as soon as possible.
Re: 550 uF, 1.5 kV capacitor
Conundrum, Wed Apr 19 2017, 09:39AM

I have a 215uF 2.5KV here.
Re: 550 uF, 1.5 kV capacitor
Physikfan, Wed Apr 19 2017, 09:47AM

Please, could you show us this capacitor?
Re: 550 uF, 1.5 kV capacitor
Mads Barnkob, Sat Apr 29 2017, 07:32AM

I got a Maxwell 1.8 kV, 2500 uF energy discharge capacitor, properly not meant for hard short circuits as I use it for: Link2