Part 1 Voltage Optimiser install at a Double Tree Hilton
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- เผยแพร่เมื่อ 1 มี.ค. 2024
- This is a new venture for me. I was contacted by a man named Marcelo Rossi who asked me to connect some cables for him.
After many site visits to various hotels we finally started our first one.
We're taking the project on as a joint venture and we feel like this job and the others that we have lined up will make a massive difference in many ways. Cost being one but also a significant environmental difference too with a reduction in the carbon footprint of the company that uses this machine.
So, Jointech and Electricnezz have teamed up to install GWE EcoMax voltage optimisers into large industrial buildings, hotels, hospitals and anywhere else that can reap the benefits from these amazing machines.
Get in touch through my Instagram page and I can send you more contact information.
jointech_ca...
#bigcables #cable #cablejointer #cablejointing #electrical #electrician #jointech #onsitejob
Marcelo, what a nice bloke. Done some work with him in Swindon. Top work 💪
Actual savings will depend a lot on the type of loads- things like heating, ovens, aircon will just cycle on for longer. Anything with a switchmode power supply (LED drivers. TVs, computers etc.) will just draw more current.
253 is a bit on the high side so maybe some benefit, though blown incandescent lamps won't be an issue nowadays.
Does this thing actively regulate, or is it a fixed ratio? if the latter you could have a problem if the DNO ever changes a tap on the substation down to nominal 230v.
Exactly, I'm not sure there are many appliances that genuinely benefit without affecting performance. Maybe certain motors are all I can think of.
I cannot think of any load in a normal hotel that would actually use less power with a lower voltage. Fridge compressors will run for a longer time. Aircon will speed up the VFD or run for longer durations, ovens and hot water heaters will have their heaters on for a longer time etc etc. LED lights, TVs, computers etc will draw more current to compensate for the reduced voltage.
@@mrfrenzy. Fridge compressors are one of the loads that might benefit. Speed is fixed by frequency
@@sdgelectronicsOk, the compressors might run slower, if they are not on something like a VFD or other smart controller, but they will run for longer. If you leave noise, friction, and the like out, the kWh consumption should be the same for the same amount of work (cooling) done. The gains would need to come from the motors being more efficient at lower speed, or something like that. If there's less energy being lost to noise, heat, friction, etc; I guess it's possible. The step down transformer would need to be extremely high efficiency / low loss, to avoid negating any benefits.
I'm sceptical about it, but not confident to say it's pure snake oil. From a fundamental physics perspective, if the work being done is the same, the joules / kWh to do the work should be the same (unless you can change the losses).
I'd be happy to be wrong, just struggling to see how it works. Lighting could be something, if it makes the lights 10% dimmer, but we're not on simple resistive loads from filament bulbs these days; e.g. LED lamps might have their own voltage regulator and just step up the current.
Ive always been under the assumption that it was snake oil.
I worked some contracts for the LFB and every plant room had one. They did have a habbit of being sold shiney things that nobody understood and didnt work.
Interesting project Tony. I look forward to part 2
Looking forward to part 2 of this vid as well as more of the in the future.
nice job
Good idea but if it’s 220v at the incomer what would the voltage be at the furthest point in the hotel? Below 216v? Surely that’s too low?
Something different Ynot.. emu is quite impressive doing a 300 .. i bought a big bird a couple weeks back.. what a tool
Please tell me you took a tootle around the ole Magic Roundabout, the crown jewel (dusty old and battered but jewel all the same) of my hometown 😅 never thought a YT spark would entertain the place 😅 I've been out 15 year now and still miss the place
I am guessing that the hotel is metered at 11kv if it has its own s/s so why not just tap down there own transformer no need for an optimiser ?
if they have a large lv supply then why not ask the dno to tap down the tx surely it will do the same thing?
Hi Tony nice video but probably needs some explanation . If voltage is reduced the current will reduce as a result and wattage reduces. I think therefore heaters lighting etc will be slightly less but not noticable. My question is adding a big inductive load in the transformer will in the need more power factor correction
I really dont understand the theory behind this and how it saves money. 253v incoming is high but surely reducing it to 220 just means appliances run for longer or draw more amps? What would happen if the utility company reduced the incoming voltage at some point to a more nominal voltage, would the supply voltage remain at 220? 🤔
Ay up Tony. Great video how’s it going I met you at CEF live last year what a nice fella you are. I have a question at 8:51 in the video were you in Schindlers lift ? …..I will get my coat
These voltage optimisers came out a few years ago then I heard that they only worked /saved money on resistive loads so I need to be convinced. Could the DNO not reduce the voltage? No reflection on the installation Tony also what about the volt drop in the installation?
how are they getting 253? are they right next to the station?
I’m confused to how that optimiser is saving money higher supply voltage = less amps used but regardless your doing it after the meter so the supply characteristics are the same?
I'd be interested to know, too. I can see that it will reduce the power of, say, a large heater but the heater will be putting out less heat ... so running for longer!
What's the theory?
Residential/domestic is typically billed for “real power” where as larger commercial/industrial services are usually billed for “apparent power” not “real power”.
“Apparent power” is always greater than “real power”. “apparent power” is basically “real power” plus some loss/waste power. this device will help reduce your “apparent power” thus utility will bill less for large services such as this.
@@ericw870 but this isn't power factor correction, it's voltage reduction...?
A load with a fixed resistance will consume more power at a higher voltage, ie at 257v if it takes 10A (2570w) it will only take around 8.6A when the voltage is dropped to 220v (1892w). Lights will be slightly dimmer though some items can compensate for a lower voltage and take more current such as switch mode power supplies.
@@cumberland1234 In the old days lights would have been dimmer - at that point why not just install lower wattage lamps to save power - but the power supply for anything but the very very cheapest modern LED fitting will be a constant current driver, so draw higher current from the mains if the mains voltage reduces.
13:44 buy a Runpotec Runpo X Board XB300 or XV500 .. those metal/alu thing are way to heavy and wont work if the drum is damaged 🙂
Tony is that trunking the right size to take 8 300mm cables?
How does the voltage drop work out at the very end of a circuit run
Great video but I'm confused... Isn't it the duty of the DNO to provide service at the correct voltage +/- x%. I'm surprised the hotel has had to go to the expense and inconvenience of doing this work?
Under EU law (I know the UK has left) the DNO has to supply the correct voltage within +/- 10%.
So 230 volts the limits would be 207 & 253 volts.
What size supply was this Tony??
Nice vid mate! Nice new bit of work to sink your teeth into.
is tri rated cable to expensive
I am confused by voltage "optimsers".
If you have a 1kW heater, it will consume 1kW per hour. If you feed it less volts, it will use more amps. At more amps, there will be more stress on the supply cable. Add the fact that the optimser will be less that 100% efficient, and surely it ends up costing you more, not less.
In a previous life, our estates team installed voltage optimisers. When challenged, I was told that most equipment is designed for the European market and is more efficient at 220V than 240V. I am sceptical.
At least we don't have incandescent lamps any more. Overvolt them and the life is severely reduced. Undervolt them and they give out a lot less light.
In the building where we had them installed, the major load was a data centre. The first thing the UPS did, was convert the incoming AC to DC, and then back to AC, so it could guarantee a continuous supply but also equal load on all phases and a perfect power factor. It really didn't care what voltage it was fed with.
And then there was the day (a weekend, of course), when our data centre started switching between mains and generator continuously. Our estates team couldn't work out why. Their outsourced electricians couldn't work out why. Then they phoned the optimiser company, who knew exactly what was going on. We had lost a phase on the incoming supply. So the auto transfer switch spun up the generator, and switched over. Once we were running on generator, the ATS waited for the public supply to be restored. At zero load, the two working phases running through the optimiser, induced a voltage in the failed phase. At which point the ATS saw all three phases, and after a couple of minutes, initiated a switch back to the public supply. At which point, the ATS discovered the missing phase. Rinse and repeat. Whilst the data centre load continued to be supported by the UPS during the transfers, the air con was not UPS backed (by design, we could tolerate a minute outage whilst failing over from public supply to generator, or back). With the constant switching, the air con never powered up. When I got to site, the glass windows in the data centre doors were noticeably hot to the touch. I am not a fan of voltage optimisers.
As others have commented, if we really wanted 220V why not get the DNO to give us a lower tap from the HV transformer?
Tony, you mention how much the companies are saving in their power bills. I am genuinely perplexed.
Resistive loads dont work like that. (Pretty much how you've described an incandescent lamp) A 1KW heater may have an output of that when with the correct design voltage. However the current and power consumed will decrease when voltage decreases. So there is benefit of dropping the supply voltage. However an Inductive load such as a motor will behave like that and current will rise when voltage drops.
@@SITRUSSNAKERY If a water need x amount of J or kWh to reach a temperature, then it can be achieved with E=P*t. If you reduce the P due to lower voltage (P=U*I) then it will only take longer, but you will not save energy. But in total the saving must be negative as there will be loss on the "optimizer" and there will be loss on the water temperature as well as it cools more because the heating period is longer. So what is shown at 8:12 is not the saving, but the voltage drop multiplied by the cost of the energy, that is a false measure. This looks to be a scam.
All those aluminum ladders are making me nervous...
Total waste of time on anything that a totally resistive load