Thanks Ryan for breaking down a sometimes confusing topic. 👍
@TylerSmith-kt8rk Жыл бұрын
silly question but if you cut the grounded conductor ( the wire that runs from the center tap of the utility transformer to the earth) would the breaker still see a ground fault?
@Elementarywatson648 Жыл бұрын
You have an excellent knack for knowing what to cover slowly or repeatedly and what to go past. A natural teacher, Thank you for your efforts here.
@RyanJacksonElectrical Жыл бұрын
Thanks Fred, what a great compliment.
@MrMaxyield3 жыл бұрын
Great video. Thanks Ryan...
@panchopantera82873 жыл бұрын
Halo Ryan were do terminate the Isolated ground from the Receptacles on the main panel?
@RyanJacksonElectrical3 жыл бұрын
Usually there is an isolated ground bar in the panel that ultimately goes directly to the transformer.
@nickgarner25273 жыл бұрын
Ryan is the man
@sweepingdenver2 жыл бұрын
I always wonder how this stuff applies to boats/ships, especially large military and industrial ones.
@MR-backup Жыл бұрын
Chasis.
@Electrician_kenz3 жыл бұрын
Can we get a video on isolated panel…
@nickpckles89023 жыл бұрын
Yes please
@joeballard30273 жыл бұрын
since the utility ensures the system is grounded, as an inspector, how important is it to bond the neutral/gnd bar in a res pnl? i.e green bolt in service equipment. ...If the xo is grounded in separately derived system, do you need to bond neutral/gnd in pnl here as well?
@RyanJacksonElectrical3 жыл бұрын
It is critically important, otherwise the fault current will return through the earth (high impedance, low current) instead of the utility neutral (low impedance, high current). Regarding your second question, you would connect XO to the metal and not bond the panel.
@joeballard30273 жыл бұрын
but it's ok to bond @ pnl for separately derived system?
@RyanJacksonElectrical3 жыл бұрын
@@joeballard3027 You do it at the source (like a transformer) or that system's first disconnect. But not both.
@joeballard30273 жыл бұрын
@@RyanJacksonElectrical yeah I feel like I've seen a lot of xfmrs bonded plus pnl/first disconnects but those days are gone I'm turning over a new leaf! Haha About the first question tho, does the utility ever run ssbj with service? If so no mbj, right?
@Electrician_kenz3 жыл бұрын
Appreciate the knowledge.
@elc2k3853 жыл бұрын
100 Days seems to short. EDIT: I meant that I would like this series to go for 1000 Days because it's so good.
@RyanJacksonElectrical3 жыл бұрын
A lot of tbe remaining definitions will be lumped together. For example, everything with the word "service," since you really can't talk about one without the other.
@realvanman13 жыл бұрын
To be clear, the transformer secondary winding is solidly grounded. The grounding scheme on the primary does not factor in here. As an aside, I've been doing battle on the internet, trying REALLY hard do get people to STOP calling a single phase, three wire system "split phase". That is a type of motor, for sure, but not a type of service. Someone heard the term, applied it incorrectly by ASSuming, now everyone is just repeating it. It's gotten so bad, that it's all over KZbin, and even manufacturers are erroneously doing it.
@RyanJacksonElectrical3 жыл бұрын
Correct, the grounding scheme on the primary has nothing to do with secondary's grounding scheme. As far as split phase goes, that term is used internationally to describe the single phase system we use here.
@realvanman13 жыл бұрын
@@RyanJacksonElectrical Yes, the term has spread like wildfire, unfortunately. "No matter how many people repeat misinformation as fact, it does not make it so". ;) I was just surprised to see it mentioned here. You are very good about nomenclature on your channel, it is quite appreciated. Edison invented the three wire system, using direct current. There's not even a "phase" to "split" with direct current. ;) Likewise with single phase, there's no "phasing", only polarity (albeit instantaneous), just as with direct current...
@RyanJacksonElectrical3 жыл бұрын
I VERY seldom say it.
@realestateservicessaleshea993 жыл бұрын
Screw ups cost money! 🍺🍺🍺🥃🥃🍿🏌🏻♀️ Stay safe. Retired (werk'n)keyboard super tech. Wear your safety glasses.