If that transformer secondary is carrying 75 amps continuously, it is overloaded. A 30 kVA TX Secondary @ 208 is 83.4 amps [30,000 ÷ 208 ÷ 1.73] You don't want to exceed more than 80% (66 amps) of the full load capacity continuously. That is why you're smelling the hot electrical odor and having the overheating issue. The insulation on the transformers windings is breaking down. They should consider either shedding some of the load if possible or installing a larger transformer if the main switchgear can handle it.
Exactly that's what I've tried to say the switchgear can definitely handle it as there was a larger transformer that was there temporarily for construction power which was larger
@@nics-systems-electric they might listen to you when the school burns down. Between that and the Christmas decorations it looks like they're trying to torch it!
That's awesome! Reminds me of sneaking into electrical rooms back in my school days; unfortunately I wasn't an electrician so I didn't get to deal with any of the equipment haha On your meter that W/VAR/PF menu is showing the school's real power consumption, reactive power consumption, and power factor (if you care about math things, you can make a right triangle with the two shorter sides representing your W and VAR, the cosine of the angle between the W and the hypotenuse of the triangle [your VA] is the power factor). The VA/Hz menu shows the apparent power (if you do the "pythagorean theorem" with reactive power and real power), and the grid frequency. Then you got energy meters below that. Wanna keep that VAR low because that makes the VA larger, and industrial customers have to pay by the VA rather than the watt. (Residential customers pay by the watt only, at least in Saskatchewan)
This is the sickest electrical room ever! btw how in the world did you gain their trust? It looks like you can do all you want, how did it all start? I love your videos btw
I started working with them four years ago when I got the chance to go to one of the schools during fire alarm testing for the summer and then just got to know all the electricians
You're in Canada? as I'm pretty sure 347V is a Canadian thing only. It's 277VAC in the USA (NEC) and Canada (CEC) have some of the same stuff but also some very different stuff as well. For instance the 347 vs 277V. Those transformers are very loud never been allowed in a school electrical room or elevator machine room both of which I was curious about in my high school years. I graduated in 2002 at 17 so things were different in both rooms. They did allow me to work on their school vehicles though the ones that were used as student transport (small private school). Do you have any interest in cars? Also in residential settings the meter base is not allowed inside the house anymore even with the newer digital meters as they want it to be in sight for in the house is an easy target for tampering and theft of service. @6:07 "ASHP1" might be the HVAC as it usually means air source heat pump AKA an AC that can run in reverse cycle to heat instead of cool @8:31 what are those red dials for to the left of the breakers? Sorry I should really watch the whole video before I comment LoL!
Yes I am in Canada and 347/600 V is I think only Canadian or mostly Canadian And yes the ASHP1 is an air source heat pump the red dials are to adjust the trip curve
@@nathanbirnofficial we’re running out of spares These led are supposed to last 20 years but are going after four years we’ve had lots of problems with LED at schools i’m starting to think fluorescent was just as good
I did not see any roof top equipment on that building. Does that school use a central chiller system for the hvac? It would seem overkill for up north. (Idk where that is but it looks northern.)
Once my high school i graduated system wen't into trouble because a power outage cused the system to go into trouble so my classmates and i were so scared im the one that freaks out with everything LOL and nice little tour what system do thay have
@@SassafrasSapling that's not something that's possible but if you were to hypothetically delete the transformer, you would kill likely almost every piece of equipment on the circuit. Some fluorescent ballast might be fine as they are dual voltage rated.
@@SassafrasSaplingmost are fluorescent, so they might be dual voltage rated the only LED corridor/stairwell emergency fixtures are in the addition which may also be dual voltage rated I'm not sure.
@@tbiwog8336 Well not exactly no one is allowed in the schools whatever they want whether they have physical access or not and yes pretty much all the electricians know I make videos and some of the other trades and some other staff
If that transformer secondary is carrying 75 amps continuously, it is overloaded. A 30 kVA TX Secondary @ 208 is 83.4 amps [30,000 ÷ 208 ÷ 1.73] You don't want to exceed more than 80% (66 amps) of the full load capacity continuously. That is why you're smelling the hot electrical odor and having the overheating issue. The insulation on the transformers windings is breaking down. They should consider either shedding some of the load if possible or installing a larger transformer if the main switchgear can handle it.
Exactly that's what I've tried to say the switchgear can definitely handle it as there was a larger transformer that was there temporarily for construction power which was larger
@@nics-systems-electric they might listen to you when the school burns down. Between that and the Christmas decorations it looks like they're trying to torch it!
Holy crap! Who did the cable management for those ethernet cables? That is a nightmare! I have seen WAY worse though.
Yeah it’s terrible The IT guys went through and redid The biggest data room and really cleaned it up a lot this one needs it to
among us
memes aside this is actually really cool
That's awesome! Reminds me of sneaking into electrical rooms back in my school days; unfortunately I wasn't an electrician so I didn't get to deal with any of the equipment haha
On your meter that W/VAR/PF menu is showing the school's real power consumption, reactive power consumption, and power factor (if you care about math things, you can make a right triangle with the two shorter sides representing your W and VAR, the cosine of the angle between the W and the hypotenuse of the triangle [your VA] is the power factor).
The VA/Hz menu shows the apparent power (if you do the "pythagorean theorem" with reactive power and real power), and the grid frequency.
Then you got energy meters below that. Wanna keep that VAR low because that makes the VA larger, and industrial customers have to pay by the VA rather than the watt. (Residential customers pay by the watt only, at least in Saskatchewan)
Sus 🙃
Looks nice
This is the sickest electrical room ever! btw how in the world did you gain their trust? It looks like you can do all you want, how did it all start? I love your videos btw
I started working with them four years ago when I got the chance to go to one of the schools during fire alarm testing for the summer and then just got to know all the electricians
Cool
Thats an amazinf and interesting setup! Awesome vid!
Your High School is much nicer then my high school in Massachusetts 😂
Yeah it’s pretty new give it 50-60 years it might not seem as nice anymore lol
Niccee
The TX with the heating problem,shouldn't be that hot,it may have some issues that need addressing🤔
I’d say so
You're in Canada? as I'm pretty sure 347V is a Canadian thing only. It's 277VAC in the USA (NEC) and Canada (CEC) have some of the same stuff but also some very different stuff as well. For instance the 347 vs 277V.
Those transformers are very loud never been allowed in a school electrical room or elevator machine room both of which I was curious about in my high school years. I graduated in 2002 at 17 so things were different in both rooms. They did allow me to work on their school vehicles though the ones that were used as student transport (small private school). Do you have any interest in cars?
Also in residential settings the meter base is not allowed inside the house anymore even with the newer digital meters as they want it to be in sight for in the house is an easy target for tampering and theft of service.
@6:07 "ASHP1" might be the HVAC as it usually means air source heat pump AKA an AC that can run in reverse cycle to heat instead of cool
@8:31 what are those red dials for to the left of the breakers?
Sorry I should really watch the whole video before I comment LoL!
Yes I am in Canada and 347/600 V is I think only Canadian or mostly Canadian And yes the ASHP1 is an air source heat pump the red dials are to adjust the trip curve
I think some places in Canada will give you 480V l-l as an industrial service; I've seen some 480V but most of the traditional stuff is 600V
Nice
Will the generator run the elevators in this building as well?
No not this school
Video of the air conditioning???
I'm not knowledgable enough on the heating and cooling systems in this building
Impressive
Did I see some extra fluorescent lights in the room too?
Those were some dead LED fixtures
@@nics-systems-electric even better It’s good to have spares around
@@nathanbirnofficial we’re running out of spares These led are supposed to last 20 years but are going after four years we’ve had lots of problems with LED at schools i’m starting to think fluorescent was just as good
I did not see any roof top equipment on that building. Does that school use a central chiller system for the hvac? It would seem overkill for up north. (Idk where that is but it looks northern.)
@@cussmustard4748 there are three air source heat pump’s on the roof but they are hidden sort of that provide heating and cooling
Y’all’s server racks are messy. Maybe IT should organize it lol
Once my high school i graduated system wen't into trouble because a power outage cused the system to go into trouble so my classmates and i were so scared im the one that freaks out with everything LOL and nice little tour what system do thay have
Notifier I have a video on testing it
PICKLE I LOVE UR VIDEOS IT'S SO COOL WHY U HAVE TO COVER THE NAME OF THE SCHOOLWS IS I T BECAUSE OF PRIVACY PERMOSIES
@@ElPasoTexasRailfan639 Yes it’s for my privacy
i already know where your school is
Yes it is possible to fine it but I try to keep my location private
@@nics-systems-electric oh ok
Can you make a video of testing the geneator?
I have one
i take it the generator also powers the fire alarm?
8:47
What will happen if you bypass the transformer that feeds the emergency lighting panel?
That's not possible the feed comes from the transfer switch at 600 V in into a 600 V panel and then feeds to a transformer then into a 120/208 panel
@@nics-systems-electric I’m taking about what happens if you feed the 120/280 lighting panel with 347/600 volts
@@SassafrasSapling that's not something that's possible but if you were to hypothetically delete the transformer, you would kill likely almost every piece of equipment on the circuit. Some fluorescent ballast might be fine as they are dual voltage rated.
@@nics-systems-electric So any 120 volt emergency light that runs off of that panel will fry up on 347 volts as it’s too much voltage for them.
@@SassafrasSaplingmost are fluorescent, so they might be dual voltage rated the only LED corridor/stairwell emergency fixtures are in the addition which may also be dual voltage rated I'm not sure.
Hiii
How do you even get permission to do this type of thing?
I don’t really ask permission any more as I’ve been working in my school district for over four years now so I’m trusted pretty well
@@nics-systems-electric Soooo like you have keys to the school and can just kinda come in? Also do they know that you film?
@@tbiwog8336 Well not exactly no one is allowed in the schools whatever they want whether they have physical access or not and yes pretty much all the electricians know I make videos and some of the other trades and some other staff