Mechanical & Electronic Insulation Testers(MEGGERS)
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- เผยแพร่เมื่อ 2 พ.ย. 2016
- Two different types of insulation testers(MEGGERS), one that you crank, which is mechanical, and the other being electronic. I will show you both units, explain why they're so useful, and demonstrate. Enjoy!
*Link to the Multi-Function Electronic Megger:
bit.ly/2et56mY
*Try these money saving coupon codes: affiliate6 or aff7off or f8aaf1 or 781622 or 5719ed or elec* or ask if other codes are available!
(Purchase Supports My Channel)
Less expensive(Not as compact)Crank version here:
bit.ly/2fhsvZz
DMM shown in this video:
• Great DMM(Digital Mult...
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I finally understand how a megohmmeter works, thanks.
You're welcome Randy!
Great video - most instructive. Thank you!
Glad you enjoyed the video! I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You
Hello Doug. Awesome has always. And I am looking forward to your next video.
All my best.
Bobby
Thanks Bobby!
I wish I knew about this a long time ago. This will be great for appliances. Good job Doug nice informative video!!!!
Thanks! Be sure to rate thumbs up, share my channel with others, and check out my video playlists.
I am always amazed at what you find at GoodWill.
Wait until you see what I found in the next video. :-) $400-$500 item, for 25 bucks...
Can't Wait!
I use a supco brand to test compressor. Great video thank you.
Glad you enjoyed it!
Good stuff in this video
Tip: When testing something like a three phase winding be aware that an intermittent connection with the voltage applied could result in a much higher spike or rise in voltage. I've seen this happen and can result in creating a flash over between windings or the metal framework. This can be avoided by combining all circuits together and test them as bundle of leads. The reason flash over may happen is that momentarily the magnetic field collapses, and induces some nasty spikes in voltage. So your connections although temporary are very important.
This is not as likely an issue with a "megger" but there are A.C. type "high pot" or high potential testers, the same rules apply. In effect these test have the potential to become a destructive test if not performed in accordance with proper methods and procedures.
I wish he explain about circuit breaker, because after I turn off circuit breaker, I unscrew hot wire everything ok but when I touched neutral with screw driver, " bang " blue spark the size about baseball
Nice Hitachi unit. Japanese make such nice equipment. I want a megger now. Lol
Working for a supplier I delivered a brand new crank unit to the oilfield dock-side and the guys waiting immediately each threw a buck on the picnic table and commenced to see whom could hold the leads the longest. The old guy won and said the secret was to hold 'em as tight as possible to maximize surface area and spread out the pain.
You can use a megger to kill sea lice too. :-)
The crank one is cool. I take it puts out DC voltage. I wonder how many amps it puts out. Probably not enough to charge a car battery in an emergency situation. Thank you for sharing
The current output is low for the crank unit, maybe 10mA.
done
nice video....
Glad you enjoyed it!
Thanks!
Have a vintage Russian built one that I got for a few bucks a good tool to have.
Thanks for watching!
I didn't even know mechanical testers existed!
Yep, they've been around for a VERY long time. :-)
Yeah, but you gotta use itty bitty probes so the monopods can get a good grip...
I have one meggers made by Hitachi- Japan in 1964
They're very good quality. Thanks for watching!
testing the drill you did not have it on pulling trigger ?????
Yes, made no difference because the neutral is always connected to the motor. :-) The hot is switched ON/OFF.
you have to turn on all manual switches to properly test as mentioned in the video. It gets tricky when the switches are not manually controlled (computer/logic controlled relays etc). Another trick to save time is to short L and N together while testing