Hi all,
Although I am doing my PhD in Power Electronics and have developed a power supply capable of operating at up to 6kV, I now need to think about how to protect myself from it. I have been looking online for resources that show me step-by-step how to design and build a small box that is interlocked as such to not allow access when the HV is ON, and does not allow access until certain time has passed after HV turned OFF. Does anyone have any good references that can guide a newbie through this? Are there any other components I should look into including?
Notes:
My power supply is a DC current limited bench supply. Is there any need for a fuse, thermistor or anything as such in the box design?
Input voltage is 270VDC. The idea is to disconnect this when the door is opened, which I think is achieved with an interlock?
I believe then, I could have a button which disconnects the HV. Sets off a timer which then once elapses opens the interlock and allows the door to be opened. I think it could be quite a simple box, but I honestly do not know where to start and can only find complete systems online which I find very difficult to follow with not much experience.
I have bought a lot of HV PPE equipment which breaks the ground loop between me and the ground, but the HV Box is obviously extremely pivotal to me as well. I am not getting paid enough in my PhD to not think about how to maximise my safety before everything else!
If there are any other aspects that I should include, such as pre-charge, or surge-protection? Then do let me know so I can add them to my list for research and revision.
Best regards, SiC
Although I am doing my PhD in Power Electronics and have developed a power supply capable of operating at up to 6kV, I now need to think about how to protect myself from it. I have been looking online for resources that show me step-by-step how to design and build a small box that is interlocked as such to not allow access when the HV is ON, and does not allow access until certain time has passed after HV turned OFF. Does anyone have any good references that can guide a newbie through this? Are there any other components I should look into including?
Notes:
My power supply is a DC current limited bench supply. Is there any need for a fuse, thermistor or anything as such in the box design?
Input voltage is 270VDC. The idea is to disconnect this when the door is opened, which I think is achieved with an interlock?
I believe then, I could have a button which disconnects the HV. Sets off a timer which then once elapses opens the interlock and allows the door to be opened. I think it could be quite a simple box, but I honestly do not know where to start and can only find complete systems online which I find very difficult to follow with not much experience.
I have bought a lot of HV PPE equipment which breaks the ground loop between me and the ground, but the HV Box is obviously extremely pivotal to me as well. I am not getting paid enough in my PhD to not think about how to maximise my safety before everything else!
If there are any other aspects that I should include, such as pre-charge, or surge-protection? Then do let me know so I can add them to my list for research and revision.
Best regards, SiC