- Location
- Massachusetts
I think you are ill informed, many electricians can actually teach you (yes even you) if you listen.
Not possible, mere mortals cannot instruct the mighty Oz.
I think you are ill informed, many electricians can actually teach you (yes even you) if you listen.
I think you are ill informed, many electricians can actually teach you (yes even you) if you listen.
Roger
Not may but certanily some. As I mentioned before I WAS an electrician before became an electrical engineer.
My statement refers to the fact that an electrician, just by that qualification alone, is not qualified to perform a harmonic study or analysis.
If you are suspicious with all doctors, I am flattered to be suspected by you. Have you ever being told that you are too paranoid?
Yes, there are dishonest doctors, yes there are dishonest engineers. I trust that you have met some dishonest electrical technicians (or more than some). Are you trustful?
Give some trust to people. Most of them deserve it.
But no need to stay dog-bit. I agree we see a lot of unscrupulous goings-on but we should still try to search for the true value in people. At least when it is just postings here, we are not at immediate risk. We can afford to be a little more patient here until we can get enough info to start making judgments. I'm not really sure that in this type of forum if we could ever get all the details. Even in life, isn't there a saying about if we had all the information we needed to make a decision that it would not be a decision but a forgone conclusion?
Naturally, you have to be more defensive on the job and can't afford to be so open. Here we can judge what is currently posted, and try not to be biased by those that have come before. I'm not pontificating as I face the same things myself and often forget.
Anyway, back to our regularly-scheduled programming.
My non scientific statistics shows that the forum moderators has one opinion, while all other posts have the opposite opinion.
What does it mean? Is it due to their experience with discussions with sales people, or maybe the forum selects its moderator according to their approach?
I do not see loading anywhere near that level in modern buildings designed under the NEC.
Brian Johns testing seems to bear that out. The problems seem to be in old buildings that have been changed to new uses without proper engineering.
I would hate to see you guys in a thread with Mike Holt and Stray voltage.
I will likely die never seeing an issue with stray voltage. I enjoy learning about. I have seen a couple issues with harmonics, and we design around harmonics, transients, noise in every project.
And in my experience are all a result of poor management, poor design, poor planning, poor ongoing maintenance.
Wow. All this has been very interesting reading. There is, however, a consideration that may not have been mentioned. Back in the mid '80's, this problem was addressed by the IEC and international standard developed by manufacturers to limit the amount of harmonics that could be put back into the electrical system by equipment. Without this, by now the systems would probably be burning like the Chicago fire.
http://www.ptsdcs.com/whitepapers/24.pdf
The sky is falling! The sky is falling!
Many electricians cannot wire 3-ways or do fire alarms, it depends on their speciality and what they endeavor to learn and practice. 25% of my customers are EC's another 15% are electrical engineers, they hire me because I have a speciality, just as I hire them if I need work they specialize in.
From what I have seen engineers as do electricians only usually learn/know what they have to, to work in their particular field.
I solve problems, and I do not need a 3rd party to sanctify me in my endeavors.
Certification does not always guarantee competence.Aaaaah, judge, jury and executioner.
I guess you're Divinely appointed, need no verification by mere mortals.
Neither does a license!Certification does not always guarantee competence.
Certification does not always guarantee competence.
Certification does not always guarantee competence.
Neither does a license!
Greeting all,
I need some information regarding to
1- harmonic affects on transformers.
2- What is the solution for harmonic current?
Aaaaah, judge, jury and executioner.
I guess you're Divinely appointed, need no verification by mere mortals.
very true but at least you know they tried..
again they know enough to be dangerous
1- Now back to the original question..What size are we talking..heat is #1 I would think..
2- Hmm all the energy efficient stuff I know produces harmonics..interesting concept, harmonics to save energy but yet it is a negative effect..
Wonder where we can go with this..
So how would you convince the general population that harmonics are an issue..
You post over the years often show a disdain for electricians, yes as noted you the MIGHTY OZ, have the knowledge and wisdom that give many electricians a nasty opinion of the snooty look down your nose at us lowly mortal as we are only electricians., I bow to you superior intellect and am sorry I tried to add to a discussion you seem to know so much about. My apologies sir.
I have noticed you don't cut much slack and tend to be blunt at times. In all fairness, I do find that you are more often correct than not. Now that I have softened the blow: Do you recognize that you are guilty of some of those same things?I only have intolerance for fools who:
- Should know better,
- Act like know more than they do,
- Unwilling - not unable - to recognize that there is much more to the subject they are discussing.
- Unwilling to learn.
I have noticed you don't cut much slack and tend to be blunt at times. In all fairness, I do find that you are more often correct than not. Now that I have softened the blow: Do you recognize that you are guilty of some of those same things?
Before you respond, I'll freely admit I have been guilty of some of those. I try to be self-aware but don't always succeed.
So all who commit one of the four sins might not be elevated to fool status?Guilt would imply intentional wrongdoing and I would respectfully decline to accept such.
To err is human and that I claim to be.