Відео

basically explaining IT grounding! Very nice!

Ohhhh I get it

Great video. You should make more.

Great video!

Wonderful ❤

Questions: When he pushes the button how is the C to Ground negated, but there is still power in the system?

This is such a gem of a video! Thank you for making it so comprehensive. Is ground fault monitoring applicable for DC power sources as well?

Brilliant

I have question maybe you can help me please?? I have a 300/400 foot run of #2 awg quadplex with a messenger its comes from a 4160 switch to another switch. I have isolated both ends and am trying to find out if the cable is ok? Each phase shows a short to ground but no shorts phase to phase? It makes no sense to me? I'm baffled as are many other electricians I pose this question to? This cable is in a steel mill and there are a lot of high voltage lines above this run to where i can put a tick tracer in the air and it goes off? I'd appreciate any kind of support for this question!! Thank you for your time and excellent presentation!! jim

Excellent description, I am showing it to my students. That is a nice circuit simulation. Thanks

This is by far one of the greatest videos on MOLR. Great job!

WHAT HAPPENS IN THE DELTA CONNECTION

Great demonstration! Thank you

very helpful

thank you sir!

Excellent video - I've posted your video in my resources section of jotbud.com! This is very helpful for electrical apprentices

Sir when phase touches the earth, it means earth will come at earths potential ?

Great description, shows why if your rcd only monitors neutral current an men must be fitted

anyone who thumbs down this video doesn't appreciate a great instructional video, I'm an electrician of over 20 years and I've never see it described this way and it's amazing. Bravo!

anyone who thumbs down this video doesn't appreciate a great instructional video, I'm an electrician of over 20 years and I've never see it described this way and it's amazing. Bravo!

Outstanding

So are you bringing the ground to C phase potential or C phase to ground potential?

Thank you for perfect explanations

Thank u sir very nice explanation

You're a boss ,great explanation

Very good explanation sir Thank you..

This is an awesome video I’ve been an MEBA member for 4 1/2 years. I can’t wait to make it back to the Calhoun school

Dear Sir i want your mail id need for more queries regarding 3 phase earth fault issue. I wanted discuss one more idea.

Thanks for the video. What happens to the voltage in delta if one phase goes to earth?

we have a ship panel with a analog gfd gauge, have not had any readings until this year, shows 2-4amp, when pushing the button, goes down to less than 1 On generator power, no fault shows at all one of the chargers makes a buzzing noise, again,not under gen power any ideas what we have going on ? Thanks Guy

Question. When you take the WYE of the fault detector and land it to the haul/ground wouldn't this energize the haul with 69VAC? Also, when phase C was at the same potential as the neutral of the detector you drew a line to phase C. This wouldn't physically happen obviously, so where exactly is the connection happening to allow 120VAC across the other other two lights. Doesn't make sense

thts really some brilliant demonstration.. made my day..Thankyou Sir

There is no mention of overload or over-current so why did it heat and trip?

Kirchoff's laws got you awake at night? Try out: 'Circuit Solver' on Google Play.

Great video thank you for sharing! No whine before its time

what's the answer to 16?

What a great informative video.. Needs music to go along with your excellent narrative skills

MMMEEEEEEECCCCEEEEE

#TRUMP2016

Hi, Thanks for the video. I have a question about your demonstration rig. Since you have shorted a phase to ground why don't you blow a fuse for over current? Is there a resistor in your ground bus?

Thanks for the video, good description. you should insulate those buss bars for safety tho!

We use these on Navy ships for 120VAC and 440VAC circuits.

very nice!

thanks a lot,i have question sir ,what is the use of terminal A2 on bimetallic overload relay,why we connect the A2 of O/L relay to contactor A2 terminal,pls explain

Very good basic video presenting ungrounded power on shipboard applications. However, in today's environment, these types of ground fault detectors have been replaced with insulation resistance monitors that monitor the insulation resistance level from your three-phases relative to ground (hull). Main reasons for using insulation monitors instead of "ground detector circuits" include the fact that most AC systems are not only "resistive" and the fact that the capacitance to ground on a shipboard application can be very high and effect the sensitivity of the detection of the ground fault. There are even products now available that can locate the faulty circuit without having to switch loads on and off.

Thanks dude

thank you sir

Thank you very much for explaining about ground fault. I'm expecting your new videos.

AMAZING!!!!!