HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
mrmikel
User Rank
Iron
May I suggest re-engineered by Monkeys - 2 items
mrmikel   1/17/2012 7:22:31 AM
NO RATINGS
My mechanic showed my some electronics from inside a fuel tank.  Two wires have rubbed on each other and fused together (probably the subject of a made by monkeys column.)  The customer complained that the fuse kept blowing so our repairer replaced it with a self-resettable fuse in a 40 amp circuit.  It takes little imagination to figure out the wires will heat up inside the fuel tank and solve the customers problems for them PERMANTENTLY.  Maybe this would be a case of repaired by murderers!

The second item of re-engineering by monkeys is a transformer replacement in a filament power supply running 480 volts, using a triac as the regulating element.  It has a 480 primary transformer with a 32 volt CT secondary to supply the regulating circuitry.  This is not a standard item anywhere so the repairer figured why not just replace the failed transformer with a 230 volt primary 64 volt secondary. Fine in theory except the matter of insulation, and the matter of 480 creating arcs that are hard to quench. There is also the  fact that this unit is controlled through low voltage control circuits for operator interface, any of which might suddenly break down when 480 volts shorts through to the secondary side.

These fellas must have got their re-engineering degree from Shade Tree University.

 

 



Partner Zone
Latest Analysis
A San Francisco startup called Otto came out of stealth mode recently and released a dramatic video demonstrating its successful test of a technology for self-driving trucks.
Researchers have found a way to use graphene to cheaply and easily turn dirty water into drinking water.
A new 1-GHz vector signal transceiver promises to offer expanded test capabilities for engineers involved in applications ranging from automotive and aerospace to semiconductors and defense.
Researchers at the Masdar Institute of Science and Technology have devised a new method for designing strong, light cellular structures of re-architected metals and plastics with optimized properties.
We shared our list, now Design News readers tell us which artificial intelligence movies they watch again and again.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 11 - 15, Embedded System Design Techniques™ - Debugging Real-time Embedded Software – Hands on
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service