How To Use Megger & Meg Motors
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- čas přidán 25. 06. 2024
- #hvac #megohmeter #electricmotor #troubleshooting #megger #hvacrvideos #service #hvacr #megometer
This is a how to on using meggers from a commercial hvac stance. One of the core hvac basics in fundamentals for advanced hvac system troubleshooting. I recommend all hvac technician develope this skill as an hvac tools. This is a skill for refrigeration as well. i hope all tradesman can benefit from this teaching.
Another hvacr videos to help show hvac troubleshooting. If you are considering joining the hvac trade I highly suggest getting hvac training from a trade school. Online hvac training videos only get you so far. From experience hvac school is the way to go. We are all blue collar in this hvac life.
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It's so nice to hear an experienced HVAC tech not mindlessly shill Fluke products for once. Great video, love the channel
Fluke is among the best though and I trust them more than a cheap 2 or 300$ megger or even a multimeter, I've only ever used fluke multi meters. When your life is in the hands of a tool of any kind, I don't believe in saving money on on that sort of purchase. And I don't like seeing anyone else doing it either.
Hahahaha
Thanks! clear, concise,makes sense, easy to understand and hear, I am going to buy one right now !
You are helping me tremendously in my career.
Thanks for your video. Learn a lot from it
Excelent explanation!!
Good explanation and good vid ...Thx ...
Great video👍🏻
Thanks for the video, very informative. So is it best for motor to be at ambient temperature to use the Meg for a accurate reading?
Best to be at operating temp
Hey man, another great video. I got a megger when I started in industrial. Never used it much. Do you know of any charts showing the voltage settings and ohm ranges for different motors on different voltages settings? I really want to become more proficient with my megger.
I think Fluke has released some material but other than that I wish I did.
Megger test values vs motor voltage tests:
208v motor ( megger voltage 500 )
460v motor ( megger voltage 1000 )
Industry standard is 1 megohm per 1000v
That said what Holden states is what you should go by.
I personally use the PI and DAR tests. They are timed tests that have a ratio value to show the condition of the leakage to ground aka insulation test.
PI RATIO: 1.0-2.0 is questionable.
2.0-4.0 is good
Greater than 4.0 is excellent
DAR RATIO: less than 1.25 is questionable
1.26-1.6 is good
1.6 and above is excellent
@@jasonjohnsonHVAC thank you buddy your the man
Thanks man for the whys and what to look for. Maybe I didn’t understand or missed it but what voltage settings do you use based on motors and their operating voltage?
never exceed 2x the rated voltage. so 460v motors I test at 1000v and 208v I test at 500v max.
@@HVACTIME thanks bud! Love your stuff.
Just to piggyback off of the original question because I've heard different things. Is this acv or dcv? I heard dcv but just wanted to confirm this. Thanks and great videos by the way!
@@johnnys3602 dcv
Where ya located
Austin Texas USA
20 million 40 billion million….just say mega-ohm and giga-ohm my guy. 🙄