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Nice writeup however ACSR is not aluminum core. It's aluminum conductor steel reinforced. The core is actually steel and the external conductors are aluminum.nervewrecker wrote:It's also high voltage to overcome resistance / impedance over long runs.pugboy wrote:the amps pulled on 220v will generally be less for same power if using same equation above and wastes less in the wires with the other equation I^2R
which is also why long distance transmission is extremely high voltage and low current, then stepped down on the lamp post with transformers to 440/220v
otherwise the wires on them big towers would get hot fast
We also use aluminum or ACSR (aluminum core, steel reinforced) despite copper being a better conductor as it's lighter so less sag accross pole spans and it's cheaper.
Same conductors for low voltage can be used for high voltage as it's the insulation resistance that matters. What matters is where insulation is needed because for overhead transmission air is the insulator. There are insulated HV lines in use, sudama village is one such place where iirc the 33kv is transmitted across a few pole spans in an area where there is heavy vegetation. Terrain and pole height would have constantly put the conductors at risk of shorts and downtime on the grid.
Line spacing is dependant on ability to ionize air and voltages jump accross coupled with the electromagnetic field generated.
You get 110/220V where there is a center tap for a neutral on two coils.
From and end of any coil to the neutral is a 110v phase. You get two phases coming to a house (except in places wired for 110v only or places like point Fortin with single phase single wire 220V) where phase to neutral is 110V and phase to phase (both ends of both coil) gives you the sum of the induced voltages in both coils, ie 220V.
I don't think anyone should be climbing poles without the linesman training. There is a lot to learn and a lot to appreciate in the job T&TEC does. Can't say the same for some of the ratch work some contractors do.
88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
redmanjp wrote:88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
what's the specs on that and the price if u dont mind me asking?
88sins wrote:redmanjp wrote:88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
what's the specs on that and the price if u dont mind me asking?
Is a system I put together, no inverters or anything like that.
Basically 2 battery banks (I started with 12 deep cycle 12.6v 180ah batteries, making 2 banks, each wired in parallel, connected to a ups, added 3 more batteries to each bank recently). The current draw on each is next to nothing for most of the items they powering (tv, wifi router, etc) , and the only thing really that pulls plenty current is the fan (a single battery will run my fan about 6 hrs, but as mentioned, it not on one battery).
Takes awhile to charge to capacity, but afaic it's worth it.
I studying if to bring in panels and charge controller and inverter, and get the hell off t&tec grid and done. But is d cost of cables to wire it all up is what go kill meh
Duane 3NE 2NR wrote:Refrigerator running off that?
T&TEC hopes customers reduce electricity use during TGU shutdown
https://www.guardian.co.tt/news/ttec-hopes-customers-reduce-electricity-use-during-tgu-shutdown-6.2.1858869.3d5d500f96
T&TEC general manager Curvis Francois hopes customers will reduce their electricity load from Saturday night into Sunday morning when Trinidad’s largest power generation plant will be temporarily offline for critical upgrade works.
“Any form of conservation that customers could practice during that period would be good,” he said.
The shutdown is expected to take place between 10 pm Saturday and 9 am Sunday, a period with low electricity load across Trinidad. Francois hopes customers will reduce their use of high-energy-consuming appliances.
“The biggest use would be air conditioning load, and we would hope that customers would probably cut back, turning it on at night and come off in the wee hours of the morning,” he said
Trinidad Generation Unlimited (TGU) produces approximately 50 per cent of Trinidad’s electricity. When that plant is taken offline on Saturday night, power from two other independent power generators, Trinity Power and PowerGen, will make up the shortfall.
88sins wrote:redmanjp wrote:88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
what's the specs on that and the price if u dont mind me asking?
Is a system I put together, no inverters or anything like that.
Basically 2 battery banks (I started with 12 deep cycle 12.6v 180ah batteries, making 2 banks, each wired in parallel, connected to a ups, added 3 more batteries to each bank recently). The current draw on each is next to nothing for most of the items they powering (tv, wifi router, etc) , and the only thing really that pulls plenty current is the fan (a single battery will run my fan about 6 hrs, but as mentioned, it not on one battery).
Takes awhile to charge to capacity, but afaic it's worth it.
I studying if to bring in panels and charge controller and inverter, and get the hell off t&tec grid and done. But is d cost of cables to wire it all up is what go kill meh
maj. tom wrote:Well good luck with those hopes.T&TEC hopes customers reduce electricity use during TGU shutdown
https://www.guardian.co.tt/news/ttec-hopes-customers-reduce-electricity-use-during-tgu-shutdown-6.2.1858869.3d5d500f96
T&TEC general manager Curvis Francois hopes customers will reduce their electricity load from Saturday night into Sunday morning when Trinidad’s largest power generation plant will be temporarily offline for critical upgrade works.
“Any form of conservation that customers could practice during that period would be good,” he said.
The shutdown is expected to take place between 10 pm Saturday and 9 am Sunday, a period with low electricity load across Trinidad. Francois hopes customers will reduce their use of high-energy-consuming appliances.
“The biggest use would be air conditioning load, and we would hope that customers would probably cut back, turning it on at night and come off in the wee hours of the morning,” he said
Trinidad Generation Unlimited (TGU) produces approximately 50 per cent of Trinidad’s electricity. When that plant is taken offline on Saturday night, power from two other independent power generators, Trinity Power and PowerGen, will make up the shortfall.
maj. tom wrote:commas.
Bad sentence structure.
It should be 2 sentences for two different statements.
“The biggest use would be air conditioning load, turning it on at night and come off in the wee hours of the morning,”
"And we would hope that customers would probably cut back."
pugboy wrote:gonna have to start up my generator later to make sure it wukking
Best i did was a off grid generator circuit perimeter lights around house flood infront and back and outlets inside each room lil fans and lighting as wellpugboy wrote:gonna have to start up my generator later to make sure it wukking
It's back 15 minutes nowStrugglerzinc wrote:Out Freeport.
I was going to fill up my buckets with current tomorrow. Bastards.
We not affected by this as we get power from the 66kv grid.gastly369 wrote:Best i did was a off grid generator circuit perimeter lights around house flood infront and back and outlets inside each room lil fans and lighting as wellpugboy wrote:gonna have to start up my generator later to make sure it wukking
All LED light and main load is fans really... Dirty power but i run Internet modem and the cctv thru a voltage regulator... I could rally out with those things till power back
Im looking to invest in a decent inverter type generator for the sensitive electronics etc in future
As for noise have it way out back of home in storage shed with a window open for ventilation
88sins wrote:redmanjp wrote:88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
what's the specs on that and the price if u dont mind me asking?
Is a system I put together, no inverters or anything like that.
Basically 2 battery banks (I started with 12 deep cycle 12.6v 180ah batteries, making 2 banks, each wired in parallel, connected to a ups, added 3 more batteries to each bank recently). The current draw on each is next to nothing for most of the items they powering (tv, wifi router, etc) , and the only thing really that pulls plenty current is the fan (a single battery will run my fan about 6 hrs, but as mentioned, it not on one battery).
Takes awhile to charge to capacity, but afaic it's worth it.
I studying if to bring in panels and charge controller and inverter, and get the hell off t&tec grid and done. But is d cost of cables to wire it all up is what go kill meh
What's the average cost for a setup like this??The Bamboo Online wrote:88sins wrote:redmanjp wrote:88sins wrote:Thank God I recently added some additional storage capacity to the bank.
Internet, tvs, computer, and fans go run about 72 hrs straight, so aight.
Anything longer than that, d genny go deal with
what's the specs on that and the price if u dont mind me asking?
Is a system I put together, no inverters or anything like that.
Basically 2 battery banks (I started with 12 deep cycle 12.6v 180ah batteries, making 2 banks, each wired in parallel, connected to a ups, added 3 more batteries to each bank recently). The current draw on each is next to nothing for most of the items they powering (tv, wifi router, etc) , and the only thing really that pulls plenty current is the fan (a single battery will run my fan about 6 hrs, but as mentioned, it not on one battery).
Takes awhile to charge to capacity, but afaic it's worth it.
I studying if to bring in panels and charge controller and inverter, and get the hell off t&tec grid and done. But is d cost of cables to wire it all up is what go kill meh
There is a push to have homes run off battery banks during the day and recharge them at night when it’s cheaper to pull power off the grid. Cheaper than going all Solar. Plus you can upgrade to Solar at later point.
I ran my home of 8 big Rolls Surrette 445Ah 6V Deep Cycle Battery. With a 6kw charger inverter. Ran whole house for about 1 week straight.
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