Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Will an EMP event destroy the stand

Will an EMP event destroy the stand

Will an EMP event destroy the stand

Will an EMP event destroy the standby generators even if they are not running at the time of the EMP?
Closer to home, will my old standby generator with a mechanical governor survive an EMP or is there a possibility that the EMP may take out the rectifier diodes in the battery charging alternator and let the battery discharge through the alternator?
Can standby generators be protected from EMP attacks by leaving the battery disconnect switch open when the set is not in use, or will an EMP take out all standby sets, even those that are stopped?

"Why not the best?"
Jimmy Carter

RE: Will an EMP event destroy the stand

not sure, but large station transformers can be protected by adding a capacitor in series with the ground. In one nordic country ( finland or norway) all large transformers are protected in this manner, mainly to address a CME.

"...when logic, and proportion, have fallen, sloppy dead..." Grace Slick

RE: Will an EMP event destroy the stand

With EMP it comes down to induced currents.
Small trace stuff, ICs will go first, then printed boards, but it would take a huge EMP to take out standard electrical equipment. But in many cases with modern stuff destroying a small voltage regulator chip would disable an entire piece of equipment.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Will an EMP event destroy the stand

So, store all your spare circuit boards in (steel!) ammo boxes.

Mike Halloran
Pembroke Pines, FL, USA

RE: Will an EMP event destroy the stand

An "old fashioned" generating set, with mechanical governor might survive, but would anything else electronic?

I saw an EMP protected installation once.

All room and control panel and switchgear doors were sealed with metal braid - with a rubber core.

Instrumentation etc had doors sealed similarly, so the entire plant could be sealed off in case of a threat.

One problem was to make sure that all access hatches were sealed, as any gap could act as a slot antenna, radiating energy into the interior of the panel.

So keep your mobile phone and radio wrapped in kitchen foil, then inside a metal biscuit tin.

They may survive an EMP, but will any transmitters survive?

To illustrate the problem, Google 'Starfish Prime', in 1962, this high level nuclear test blew streetlights in Hawaii 900 miles away!

RE: Will an EMP event destroy the stand

davefitz- A GMD caused by a CMU and an EMP are totally different, even if they do share one letter in common. GMDs have a field strength on the order of 0.0008V/m and may last several hours. EMPs have a field strength on the order of 90,000 V/m and last a fraction of second. The capacitor in the transformer neutral is for GMD protection and has nothing to do with EMP.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


eBook - Rethink Your PLM
A lot has changed since the 90s. You don't surf the Web using dial-up anymore, so why are you still using a legacy PLM solution that's blocking your ability to innovate? To develop and launch products today, you need a flexible, cloud-based PLM, not a solution that's stuck in the past. Download Now
White Paper - Using Virtualization for IVI and AUTOSAR Consolidation on an ECU
Current approaches used to tackle the complexities of a vehicle’s electrical and electronics (E/E) architecture are both cost prohibitive and lacking in performance. Utilizing virtualization in automotive software architecture provides a better approach. This can be achieved by encapsulating different heterogeneous automotive platforms inside virtual machines running on the same hardware. Download Now
White Paper - The Criticality of the E/E Architecture
Modern vehicles are highly sophisticated systems incorporating electrical, electronic, software and mechanical components. Mechanical systems are giving way to advanced software and electronic devices, driving automakers to innovate and differentiate their vehicles via the electric and electronic (E/E) architecture. As the pace of change accelerates, automotive companies need to evolve their development processes to deliver and maximize the value of these architectures. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close