Megging a 3 phase 480 volt motor - Electrician Talk
Jul 9, 2011 · What should the ohms be going from ground to phase on a digital megger? For a good motor should it read around what (400megaohms)? When the motor is bad it should read …
Megger residential wiring - Electrician Talk
Aug 17, 2015 · A megger is simply a "megohm meter" and it only measures insulation resistance, at higher values than a regular ohm meter. Generally a regular DMM operates at 9VDC on the …
megging a motor wired up - Electrician Talk
Jan 14, 2009 · A megger is used to test the integrity of insulation. If you are testing a motor circuit wired to a MCC bucket or a VFD; Open the breaker in the bucket or isolated the VFD. Always …
Megger - Electrician Talk
Aug 2, 2008 · Megger phase to ground on the Primary, Phase to ground on the secondary (with the neutral ground bond lifted) and primary to secondary.Circuit Breakers: Large frame circuit …
What brand of Meggers are the best? - Electrician Talk
Dec 23, 2010 · From what I've read here, it seems most like the fluke 1507/1589. The only knock on those flukes are their inability to do accurate pi/dar tests. Type in megger in the search …
Meggering AC Motors whilst connected to a VFD Drive.
Feb 26, 2012 · DO NOT MEGGER ANYTHING CONNECTED TO A VFD! I agree that adding a disconnect would be a good idea as I assume the megger test is a preventive maintenance …
What are expected Megger readings? - Electrician Talk
Dec 29, 2013 · You can damage this equipment or at a minimum get false readings. Typically start with the lowest voltage your megger has, starting at 50, 100 or 250 VDC will minimize …
Hi-Pot Vs Megger Testing - Electrician Talk
Sep 19, 2015 · If you see a fault with the megger, you will see a fault with the hipot. The hipot stresses the insulation weak points at higher voltage levels than the megger will. I don't think …
Megger how to - Electrician Talk
Jun 29, 2007 · In commercial, use it to megger out a new feeder you just pulled in. Measure each wire to each of the other wires, and each wire to the metal conduit. You want basically infinity …
Megger VS. Hi-Pot (PDMA VS. Baker AWA) | Electrician Talk
Sep 4, 2009 · One area is the testing of long runs of feeders. When I say long I mean 500 feet or more.My thinking is that size, length and type of conductor influence the results a megger test …