Uradhura you're funny but since ur using scifi name I just couldn't help teaching you some real science!

---Emphasis Added---

To what 'Scifi character' are you referring? -- Granted! I'm not much into entertainment 'younger' than myself - howbeit Google seems 'at a loss' as well!

TTFN
HP

 

To what 'Scifi character' are you referring?

First Star Trek. James Kirk Captain, Uhura = communications officer.
I believe this part of the conversation is a complete scatter shot of non-facts.
https://en.wikipedia.org/wiki/Uhura

 

First Star Trek. James Kirk Captain, Uhura = communications officer.
I believe this part of the conversation is a complete scatter shot of non-facts.
https://en.wikipedia.org/wiki/Uhura

Careful, @#12, your past life as a decryption officer is shining through.

 

Careful, @#12, your past life as a decryption officer is shining through.

Actually, it's my past life as a cripple shining through. I was in a cast for 13 months and finally bought a TV at the age of 26. By then, I had completely missed The Brady Bunch and was watching re-runs of MASH and Star Trek...except they weren't re-runs from my perspective.

 

First Star Trek. James Kirk Captain, Uhura = communications officer.
I believe this part of the conversation is a complete scatter shot of non-facts.
https://en.wikipedia.org/wiki/Uhura

Ah! Yes! STTOS's answer to Irwin Allen's (VTTBTS) 'Sparks' character, as it were... IMO anyone capable of full recovery from a ('Nomad induced') 'DBANing' in the course of a single episode has earned a direct commission to Admiral!

I believe this part of the conversation is a complete scatter shot of non-facts.

Speaking for myself -- Just killing time pending further participation from the TS

Best regards
HP

 

First Star Trek. James Kirk Captain, Uhura = communications officer.
I believe this part of the conversation is a complete scatter shot of non-facts.
https://en.wikipedia.org/wiki/Uhura

#12 You're right! My dumb! So I gave lesson in real science and got a lesson in scifi so it's all _even Steven_ plz don't ask who Steven is cuz idk

 

I suppose what the OP is asking is a device, in parallel or shunt to the rest of the circuit, that allows a low current to go through. However when a higher current passes through the same circuit (due to an overload, shortcircuit etc.), then the parallel sub-circuit switches on and takes the excess current itself so that the remaining circuit is not damaged. Sort of an excess current protection circuit.

So, instead of the all posters babbling you actually have a viable option, that none of us have seen before. I feel sad that I didn´t think about the original question like you did, and I don´t think the rest of the replies here made lately any effort to get there.

Hi,Is there an electrical component that stops a small current from passing through, but if the current is large enough, is allowed to pass through without destroying the component?

Basically, the former approach and even the question were reversed, so i think no one saw the solution. Basically until the current is large enough you bypass the main circuit, then it is allowed up to some point, and then bypassed again in order not to "destroy the component with overcurrent".

I think everyoune was in the state of "you don´t get voltage until you get current" and that was the end, even though that bypassing said current would do the job.

 

So, instead of the all posters babbling you actually have a viable option, that none of us have seen before. I feel sad that I didn´t think about the original question like you did, and I don´t think the rest of the replies here made lately any effort to get there.

Kubeek I say you need to get off your high horse cuz first it's not our responsibility to read TS' mind and anyhow circuits with repurposed OVP components (which are what you and NPN-1 are really talking abt) WERE mentioned!

 

I suppose what the OP is asking is a device, in parallel or shunt to the rest of the circuit, that allows a low current to go through. However when a higher current passes through the same circuit (due to an overload, shortcircuit etc.), then the parallel sub-circuit switches on and takes the excess current itself so that the remaining circuit is not damaged. Sort of an excess current protection circuit.

A shunt current regulator? -- A readily implemented, genuinely interesting concept indeed.... But why?

Kubeek I say you need to get off your high horse cuz first it's not our responsibility to read TS' mind and anyhow circuits with repurposed OVP components (which are what you and NPN-1 are
really talking abt) WERE mentioned!

Careful, @Aleph(0)! - @kubeek is a man who knows a 'correct' guess when he sees one! -- Quite despite his apparent inability to 'decipher' the OP for himself [/sarcasm]

Best regards
HP

 

A shunt current regulator? -- A readily implemented, genuinely interesting concept indeed.... But why?


Careful, @Aleph(0)! - @kubeek is a man who knows a 'correct' guess when he sees one! -- Quite despite his apparent inability to 'decipher' the OP for himself [/sarcasm]

Best regards
HP

Possibly he is (was) referring to a CROWBAR circuit. Something to trip an SCR and instantly blow the fuse in case of a slight over draw of current. Like throwing a crowbar across the buss bars.

Fuse to far left - current sense resistor connected to difference amplifier, feeding comparitor. SCR shunt (crowbar) on left, Load on right,

 

Possibly he is (was) referring to a CROWBAR circuit. Something to trip an SCR and instantly blow the fuse in case of a slight over draw of current. Like throwing a crowbar across the buss bars.

Fuse to far left - current sense resistor connected to difference amplifier, feeding comparitor. SCR shunt (crowbar) on left, Load on right,
View attachment 119665

Indeed! -- As per @Aleph(0) et al... Re: 'active' OCP devices -- Seems 'all roads lead back' to EMF 'detection' and, hence, classic 'OVP-like' circuits

For all that - I wish the TS would merely make a clear statement of his intent hence 'putting us out of our misery', as it were...

Best regards
HP

 

As an aside: How truly great minds think alike -- Post #50 (above) is the second mention of 'crowbar' circuits directed 'my way' during the past 6 hours!

The earlier instance being:

HP I have to admit I just couldn't bring myself to do work of pulling LVPSU from fusor IECD chain so I used Allegretti PSU with super crowbar with threshold set for 200v! So shunt devices were redundant ignitron retrofits so each one is guaranteed to 100kA for 50ms which is totally enough margin to handle Allegretti filter Caps and after that it's just 300A which retrofit can handle continuously! So OV would just pull semiconductor fuses within 1ms of triggering! Anyhow MOVs in fusor HV PSU would save it anyway! So I say there was enough redundancy Anyhow nothing bad happened and now it's back together and working like it should!

Can it be?! @Aleph(0) and @GopherT Sock puppets?! -- The mind boggles!

PS - While I know I needn't disclaim this - I, nonetheless, feel I must: My 'conclusion' (above) -facetiously drawn from a mere coincidence- is a joke! -- So - no need to start WWIII - Which being a 'task' best left to the government!

TTFN
HP

 

Can it be?! @Aleph(0) and @GopherT Sock puppets?! -- The mind boggles!

HP That's not funny cuz some ppl will believe it!

 

@Hypatia's Protege That's not funny cuz some ppl will believe it!

The new GopherT avatar is a photo of my SockPuppet. Accessories like goggles, lab coat, hard hat, miner's hat, pocket protector all available and sold separately. Contact me, @Aleph(0), for pricing and availability.

 

Ghe new GopherT avatar is a photo of my SockPuppet. Accessories like goggles, lab coat, hard hat, miner's hat, pocket protector all available and sold separately. Contact me, @Aleph(0), for pricing and availability.

GopherT You're funny but once ppl get idea someone is trolling it's hard to get them to listen to truth! So ppl on here b4 you and I joined know better to point of HP's joking being ludicrous but newbies maybe not so much

 

GopherT You're funny but once ppl get idea someone is trolling it's hard to get them to listen to truth! So ppl on here b4 you and I joined know better to point of HP's joking being ludicrous but newbies maybe not so much

Your words of concern say one thing, your actions that bring this thread to the top of the list say another thing. It was dying quietly and drifting off to obscurity before you resuscitated it. Once you stop churning up the muck and mud, only guys like stickman (below) will find HP's jab at the puppet master.

 

HP That's not funny cuz some ppl will believe it!

Sorry about that Goph... um.. I mean Aleph!

TTFN
HP

 

Sorry about that Goph... um.. I mean Aleph!

TTFN
HP