Anatomy of an Automatic Transfer Switch ASCO
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- Опубліковано 10 гру 2012
- Let R&J Control take the mystery out of transfer switches. Here we explain the main components of an ASCO transfer switch and the sequence of events during a power loss. This is actually our own system that powers our building in the event of a power failure.
- Наука та технологія
The transfer switch does exactly that... It "transfers" between utility power and generator power based on need. It can be rated as Service Entrance so that it can be the primary disconnect on the incoming utility service. The generator itself, should always have an output breaker on the unit and sized appropriately to the system's rating.
Love me some asco 300 controllers.
In my 20 years I've replaced like 4 controllers.
Cutler hammer? Those blow out all the time.
I've probably changed like 30 in the past 5 years.
meaning cutler hammer is "PON"
I have an old ASCO switch that was never used because it was a backup for the I-30 Turnpike. The Generator's output was 37.5 Amps. If it is worth anything, how much do you think it is worth? Thanks
@@docalexander2853 depends , they could have used any size switch.
It could be a 50 amp switch or maybe a 100.
There should be a model tag that has the particulars.
Used stuff can range in price but it's usually worth at least 1/2-2/3 of the original cost
Does the ATS model J07ATSB30600N5XP require DC to operate the relays?
Can't get more of a elementary level explanation than this.
Nice video! I am a bit confused -- I have looked at several videos showing 400Amp Generac ATS installs... The confusion is this -- Most of what I see is that there are installs that SHOW 4 "Hots" coming into the ATS and taken up to the TOP of the Transfer Switch -- My confusion is WHY would there be 4 Hots coming from a Meter and not just 2 Hots if the Meter is supplied with 400/320 Continuous from the Transformer through the meter? Question -- Are FOUR Hots needed from the meter every time? (I am only concerned with SINGLE PHASE 400/320A 120/240V system here) Can you explain this for me?
hi , i was just wounding if the arrangements of the phases were right. is it suppose to be black red blue for low voltage. ? and phases in the ATS is arranged black blue red. i don't know if the color code differs from a state to state.I loved your video as a great intro to ATSs, however it would be great if you teach me something i don't know about the code arrangement. Thank you
Site phasing is always dictated by the incoming commercial phasing. "Normally" Black Red Blue for a A-B-C rotation, but if the commercial coming in is not in an A-B-C configuration, you make the generator phasing match the incoming phasing, by changing any two of the three phase leads location. Which can sometimes give you what you see on the video.
Does the ATS serve as a disconnect for the utility power to the building? Do you need another disconnect mounted for the generator? Is their one built in to the generator itself?
The generator will have a breaker and utility will have a breaker to isolate power from the ATS either way.
Is that system energized? I'm judging by the control lights on, that it is. Definitely do not want to open any energized equipment without proper PPE.
Of course that was only for a demo...but definitely when working around live wiring and panels PPE no doubt!
I see a utility phase issue going on there. Why is it A-C-B and not A-B-C? Utility company feeding the building load in reverse.
Ansi requires the high leg to be installed in c phase, nec wants it in b phase per 408.3 (E), also should be marked orange per 110.15.
@@SkepticforTruth I guess orange tape was back ordered?
Can you hear that, ka-ching, ka-ching, ka-ching, just wait till you see that bill.
Good morning, friend, install a power plant to a swich transfer series H 300 series to feed 57 houses and I would like to know how do I control the power input by means of a frequency or a wifi antenna. Taking into account that I will install a circuit in each house with contactors and relay to control. But I need to do it via frequency or wifi, since wiring is very expensive. If you can help me I appreciate it.
Control wiring is the LEAST of your concerns.
You guys look alike is the older fello your father?
What is a wild leg
I hate triacs because they don't click like a relay. The best is hearing the clunk of a contactor --reminds me of a 155mm artillery shell loading into the breech just before I decimated a fishing village and a herd of water buffalo in the Mekong Delta. You failed to take the mystery out of transfer switches. There is no schematic, no wiring diagram, no load calculations for AWG selection, no overcurrent protection mentioned, no demonstration of a black out or brown out and the generator starting up, and no mention of a UPS for some circuits until the generator comes up to speed.
Could you please show your system actually operating and put the microphone right up to that Schneider Electric big ass relay to prove the French aren't totally useless. We should be able to hear clunks and see the indications which Line is being used.
There are no overcurrent protections in an ATS.
It is called familiarization for a reason. What you ask is technical data. Buy your own switch and find out.
I stole about 300 ft of 4 Ort and sold it for crack
Shouldn't the wild leg be on B phase
What is a wild leg
I see black, blue and red. Wild leg is orange
Phase rotation test will show how the power company delivered to the customer.
I'm seeing wild leg is being phased out here in Kansas city. But typically it's on B phase, and it is marked orange.
@@steveschrader9250 The common color code in GA is Black, orange, yellow but depending on the electrician that wired it could also be blk, red, blue.