Grounding and bonding: Generator sources and transfer switches

Part 5: Grounding and bonding: Generator sources and transfer switches Two professional engineers (Dan Carnovale and Tom Domitrovich) with years of power systems experience will clarify this often misunderstood concept while making reference to NEC.
To learn more about grounding and bonding you can find the full video here: • Grounding and bonding
Thank you for watching one of our many educational videos on the topic of power systems. Schedule a visit to one of Eaton's Power Systems Experience Centers in either Pittsburgh or Houston to learn more!
To learn more about Eaton products and our Power Systems Experience Centers: eaton.com/exper...
To view more educational videos from Eaton's Power Systems Experience Centers: videos.eaton.co...
------------------------------------------------------------------------------------------------------------------------------------------------
Search terms: grounding, bonding, grounding and bonding, grounding vs bonding, generator grounding, transformer grounding, service entrance ground, service entrance grounding, service equipment ground, grounding electrode, grounding conductor, bonding strap, equipment ground, transfer switch ground, ground rod, grounding rod, switch the neutral, neutral switching in transfer switch, four pole transfer switch, 4 pole transfer switch, return current, safety, surge protection, power quality, circulating currents, ground loops, isolated grounds, single point grounding, electrical noise on a power system, utility source ground, building steel, incoming ground, outgoing ground, residential service grounding, grounded neutral conductor, ungrounded conductor, main bonding jumper, transformer grounding configurations, bird on a wire, ground fault current path, electrical shock hazard, touch potential, step potential, grounding grids, grounded to case | What is a ground? What is a bond? How to ground a generator? What is a grounded wire? What is a grounding wire? What is a separately derived system? How to ground a transformer? What is NEC grounding method? Is grounding required by NEC? Do I need a 4 pole transfer switch? What is a high resistance ground? What is an HRG? What does solidly grounded mean? What is the difference between grounding and bonding?

[@KeithOlbermannn]

What you've describe is well and good really for the 3 phase system. In a split phase system you could have a 3 Pole switch, (2 hots 1 neutral), with 1 pole used to switch the neutral. Well, most generators today rated over 5k in have a neutral-ground bond. It'd be nice if Eaton actually sold a transfer switch/panel that switches the neutral with a 3rd pole. As it things stand right now eaton only sells one transfer switch that switches the neutral model CH10GEN5050SN. Be nice if you have a 100amp version with more circuits than the measly 10 that this current iteration has

[@DH-mf2lv]

Tom, thank you for this video. I was having a difficult time convincing a generator representative to keep the derived grounded neutral conductor in the generator isolated from the enclosure. (The generator ATS does not switch the grounded conductor). I forwarded this video and I hope it helps him! Don H

[@oldmanrock7542]

I installed a switch in the middle of the bonding wire on the generator. It's off when running the cabin through a transfer switch and on when power tools are plugged directly into the generator.

[@norsk54472]

did the same so I can use the generator for house OR stand alone. problem is educating others who operate the generator as to why

[@alhassanabuyousef2005]

how the generator neutral return current will flow back through the other separately derived system and the Generator neutral is not grounded ( it is an open circuit)?

[@enriquerodriguez2451]

Great safety information thanks

[@H750S]

Can the ground rod on the service equipment be used to ground the generator since it’s connected to it through the egc?