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'[EE] High Voltage low current switch.'
2008\04\29@204801 by Estevan

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Greetings all!
 
 I have been asked to find a way to switch between 2Kv AC and 3Kv AC (1.6mA MAX) (around 5W MAX) to a few different loads. Does anybody have a good supplier or any links for this type of thing?
 
 Thanks for your help!
 
 Best regards,
 Estevan

     
---------------------------------
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2008\04\29@222957 by Cedric Chang

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>
> On Apr 29, 2008, at 6:47 PM, Estevan wrote:
>
> Greetings all!
>
>   I have been asked to find a way to switch between 2Kv AC and 3Kv  
> AC (1.6mA MAX) (around 5W MAX) to a few different loads. Does  
> anybody have a good supplier or any links for this type of thing?
>
>   Thanks for your help!
>
>   Best regards,
>   Estevan

How fast, how often ?
cc

2008\04\29@223418 by Spehro Pefhany

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At 08:47 PM 4/29/2008, Estevan wrote:
>Greetings all!
>
>   I have been asked to find a way to switch between 2Kv AC and 3Kv
> AC (1.6mA MAX) (around 5W MAX) to a few different loads. Does
> anybody have a good supplier or any links for this type of thing?
>
>   Thanks for your help!
>
>   Best regards,
>   Estevan

Occasional switching? Maybe some vacuum relays.

Eg. this inexpensive Russian one:
http://www.nd2x.net/B1B.html

Two major Western makers are Kilovac and Jennings.

Consider also the possibility of series-connected photo-MOS SSRs (watch
that the input/output isolation voltage rating is sufficient to be safe).


Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
spam_OUTspeffTakeThisOuTspaminterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com



2008\04\29@223418 by Spehro Pefhany

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At 08:47 PM 4/29/2008, Estevan wrote:
>Greetings all!
>
>   I have been asked to find a way to switch between 2Kv AC and 3Kv
> AC (1.6mA MAX) (around 5W MAX) to a few different loads. Does
> anybody have a good supplier or any links for this type of thing?
>
>   Thanks for your help!
>
>   Best regards,
>   Estevan

Occasional switching? Maybe some vacuum relays.

Eg. this inexpensive Russian one:
http://www.nd2x.net/B1B.html

Two major Western makers are Kilovac and Jennings.

Consider also the possibility of series-connected photo-MOS SSRs (watch
that the input/output isolation voltage rating is sufficient to be safe).


Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
.....speffKILLspamspam@spam@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com



2008\04\30@000750 by Sean Breheny

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I think some SCRs can do this sort of thing.

Sean


On Tue, Apr 29, 2008 at 10:36 PM, Spehro Pefhany <speffspamKILLspaminterlog.com> wrote:
{Quote hidden}

>  --

2008\04\30@015629 by Roy

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Cedric Chang wrote:
>> On Apr 29, 2008, at 6:47 PM, Estevan wrote:
>>
>> Greetings all!
>>
>>   I have been asked to find a way to switch between 2Kv AC and 3Kv  
>> AC (1.6mA MAX) (around 5W MAX) to a few different loads. Does  
>> anybody have a good supplier or any links for this type of thing?
>>
>>   Thanks for your help!
>>
>>   Best regards,
>>   Estevan
>>    
>
> How fast, how often ?
> cc
>  
1.6ma * 3kv = 48 watts :-(
Roy

2008\04\30@044713 by Mike Harrison

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On Wed, 30 Apr 2008 17:56:08 +1200, you wrote:

{Quote hidden}

But a switch shouldn't have to handle anything like that...
vacuum relay is probably easiest - look at  the high-end of reed relay sizes as you may find
something suitable there.

Otherwise, HV mosfets or IGBTS - maybe MOSFETS with photovoltaic optoisolators to simplify the gate
drive,

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