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Re: Measuring HV capacitor voltage (fwd)



---------- Forwarded message ----------
Date: Thu, 19 Jul 2007 19:02:32 -0300
From: Antonio Carlos M. de Queiroz <acmdq@xxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Measuring HV capacitor voltage (fwd)

Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Thu, 19 Jul 2007 15:15:51 +0000
> From: David Rieben <drieben@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Cc: drieben@xxxxxxxxxx
> Subject: Measuring HV capacitor voltage
>
> Anyone have any sug-
> gestions for reliable and reasonably accurate measurement of high voltage
> through a low voltage analog voltmeter via a voltage divider network? 
>   
Use a microamperimeter. With 50 uA for 10 kV you need 200 MOhm of 
resistance in series with one.
With 20 10 MOhm resistors, it's just 500 V over each resistor. Seems safe.

Antonio Carlos M. de Queiroz