ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 [2] 3   Go Down

Author Topic: Popping a 5000 amp fuse  (Read 1459 times)

Dave Garoutte

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2635
  • San Rafael, CA
Re: Popping a 5000 amp fuse
« Reply #10 on: June 11, 2021, 06:33:58 PM »

So anyone know what the application for a 5000A fuse is?
It's what you need to keep Lucas electric on your Brit bike from failing.
Logged
Nothing can be made idiot-proof; only idiot resistant.

Events.  Stage, PA, Lighting and Backline rentals.
Chauvet dealer.  Home of the Angler.
Inventor.  And now, Streaming Video!

Ike Zimbel

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 696
  • I'm not a newbie, I just play one on the internet!
    • Zimbel Audio Productions
Re: Popping a 5000 amp fuse
« Reply #11 on: June 11, 2021, 06:54:30 PM »

You can't always get what you want.... x100.
Ha! I got this one  :P...not sure who else did. AND, I didn't even watch the video :P
Logged
~Ike Zimbel~
Wireless frequency coordination specialist and educator.
Manufacturer's Representative (Canada)
Radio Active Designs
Pro Audio equipment repair and upgrades.
~416-720-0887~
ca.linkedin.com/pub/ike-zimbel/48/aa1/266

Chris Hindle

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 2222
  • Montreal, Quebec, Canada, Earth, Sol System,......
Re: Popping a 5000 amp fuse
« Reply #12 on: June 12, 2021, 06:41:20 AM »

It's what you need to keep Lucas electric on your Brit bike from failing.
Why do Englishmen like warm beer?
It's because they have Lucas refrigerators.

Lucas, the Prince of Darkness

Back in my mechanics days, i made good coin getting the smoke back into MG and Triumph "electrics"....
Chris.
Logged
Ya, Whatever. Just throw a '57 on it, and get off my stage.

Tim McCulloch

  • SR Forums
  • Hero Member
  • *
  • Online Online
  • Posts: 22201
  • Wichita, Kansas USA
Re: Popping a 5000 amp fuse
« Reply #13 on: June 12, 2021, 10:37:53 AM »

Why do Englishmen like warm beer?
It's because they have Lucas refrigerators.

Lucas, the Prince of Darkness

Back in my mechanics days, i made good coin getting the smoke back into MG and Triumph "electrics"....
Chris.

Lucas in Triumph - every wire the same color.  Bah, humbug.
Logged
"Practicing an art, no matter how well or badly, is a way to make your soul grow, for heaven's sake. Sing in the shower. Dance to the radio. Tell stories. Write a poem to a friend, even a lousy poem. Do it as well as you possible can. You will get an enormous reward. You will have created something."  - Kurt Vonnegut

Dave Garoutte

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2635
  • San Rafael, CA
Re: Popping a 5000 amp fuse
« Reply #14 on: June 12, 2021, 10:55:39 AM »

Why do Englishmen like warm beer?
It's because they have Lucas refrigerators.

Lucas, the Prince of Darkness

Back in my mechanics days, i made good coin getting the smoke back into MG and Triumph "electrics"....
Chris.
Lucas also invented the flashdark.
Logged
Nothing can be made idiot-proof; only idiot resistant.

Events.  Stage, PA, Lighting and Backline rentals.
Chauvet dealer.  Home of the Angler.
Inventor.  And now, Streaming Video!

Chris Grimshaw

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1683
  • Sheffield, UK
    • Grimshaw Audio
Re: Popping a 5000 amp fuse
« Reply #15 on: June 12, 2021, 11:05:52 AM »

So anyone know what the application for a 5000A fuse is?


Output fuse on a Macrotech.

More seriously, a family member works on newspaper printing presses. Some of those drives are rated for 1MW. Even the medium-sized drives won't turn with anything less than 240V 3-phase applied.

Some industrial stuff, then, might require a fuse of that kind of size.

Chris
Logged
Sheffield-based sound engineering.
www.grimshawaudio.com

Frank Koenig

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1152
Re: Popping a 5000 amp fuse
« Reply #16 on: June 12, 2021, 11:15:04 AM »

So anyone know what the application for a 5000A fuse is?

It's interesting that it's just a bunch of 100A in parallel.  Anyone know if that's how all the fuses larger than 100A are built?

Dunno for sure but my guess is that you'll find them in low-voltage, high-current applications such as electroplating. Interrupting that much current at high voltage requires more advanced methods of suppressing the arc. --Frank

I'll add that high-power BEVs can run ~1000 A at ~400 V when you floor it, so that's getting up there.
« Last Edit: June 12, 2021, 11:20:11 AM by Frank Koenig »
Logged
"Nature abhors a vacuum tube." -- John Pierce, Bell Labs

Craig Hauber

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 721
  • Mondak Sound Design - Plentywood MT/Grenora ND
Re: Popping a 5000 amp fuse
« Reply #17 on: June 12, 2021, 12:08:15 PM »

Dunno for sure but my guess is that you'll find them in low-voltage, high-current applications such as electroplating. Interrupting that much current at high voltage requires more advanced methods of suppressing the arc. --Frank

I'll add that high-power BEVs can run ~1000 A at ~400 V when you floor it, so that's getting up there.

The original ubiquitous "non-battery" EV, (commonly known as a diesel-electric locomotive), average around 3.2MW from their onboard power plant -I bet there's some large current fuses in those. 
Not to mention some interesting computer controlled traction control via very large solid-state motor drives.

-I'm always been fascinated by anything that starts with logic-level voltages in microscopic silicon ending up in control of stunning amounts of raw current! 

Do they have multi-megawatt breakers that wouldn't need contacts rebuilt after opening (especially with DC)?  Possibly would be too large and heavy for anything other than stationary power-plant or substation usage?

Logged
Craig Hauber
Mondak Sound Design
-Live PA
-Installs
-Theatre

Chris Hindle

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 2222
  • Montreal, Quebec, Canada, Earth, Sol System,......
Re: Popping a 5000 amp fuse
« Reply #18 on: June 12, 2021, 01:14:55 PM »

Lucas in Triumph - every wire the same color.  Bah, humbug.
I had to "fix" the tail lights on an late 60's MG something or other.
EVERY FUCKIN WIRE WAS WHITE!
No tracers, no nuthing.
Way to go Lucas.....................
Chris.
Logged
Ya, Whatever. Just throw a '57 on it, and get off my stage.

Keith Broughton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3548
  • Toronto
Re: Popping a 5000 amp fuse
« Reply #19 on: June 12, 2021, 07:23:57 PM »

:o

"Popping" seems a tad bit understating!
They are English after all, so, understated just a tad. :D
Logged
I don't care enough to be apathetic

ProSoundWeb Community

Re: Popping a 5000 amp fuse
« Reply #19 on: June 12, 2021, 07:23:57 PM »


Pages: 1 [2] 3   Go Up
 



Site Hosted By Ashdown Technologies, Inc.

Page created in 0.033 seconds with 19 queries.