Body
Hi Mick,
There are two types of reactive power having different sign (capacitive and inductive power). When they are equal they cancel out each other like in an LC-tank during resonance. The capacitive reactive power then cancels the inductive reactive power leaving only the true or active or real power. During resonance the voltage or current is be increased. At parallel resonance the voltage is increased while the current to/from the LC-tank is decreased. The current between the capacitor and inductor in the tank is also increased during parallel resonance. Only the external current to the tank decreases. Thus having the compensating reactive power close to the device creating the reactive power prevents excess current in the line feeding the device and its reactive power compensation. This makes the line waste less power in resistive heating without increasing the cross sectional area of the wires.
Regards
Ole
---In [email protected], <mkjekyll@...> wrote :
from link
Why Do We Need Reactive Power? Reactive power (VARS) is required to maintain the voltage to deliver active power (watts) through transmission lines. Motor loads and other loads require reactive power to convert the flow of electrons into useful work. When there is not enough reactive power, the voltage sags down and it is not possible to push the power demanded by loads through the lines. On 7/5/2019 4:00 PM, onielsen@... mailto:onielsen@... [EVGRAY] wrote:
Hi Mick,
I'm not sure I follow. If you mean one phased motors having a help or start winding this winding has a capacitor in series to make a phase shifted current. The big motors are three phased. For two speeds the pole pair number is changed. For reducing the start current the motor is started in star connection and switched to delta connection. I.e. the voltage is changed across the motor windings.
The inductance of the motor windings is what makes the power reactive. At high load the power becomes more active. It's like a transformer without any load. This acts like an inductor which has lagging reactive power. The current lags the voltage. When loading the transformer its secondary induces an opposite directed magnetic field which cancels the magnetic field of the primary coil. This makes the power become resistive or active or real.
Regards
Ole
---In [email protected] mailto:[email protected], <mkjekyll@...> mailto:mkjekyll@... wrote :
Ole, I was referring to the old style motors that require a certain amount of active on the grid. There are still a lot of those in factories with the tapped winding's for two speed operation like the old lathe motors. My understanding, which may be incorrect as I never worked in distribution, is that AC induction motors require some reactive power to run properly notwithstanding the lagging PF they add themselves.
On 7/5/2019 1:54 PM, onielsen@... mailto:onielsen@... [EVGRAY] wrote:
Hi Mick,
Traditionally factories having high inductive reactive power puts capacitor loads to force back the power factor closer to active power. I.e. power factor closer to one. Now many motors are controlled by frequency controllers. Such electronic devices must have power factor correction in them. If having low power factor at high power you are billed for that as it wastes energy in heating the wires. Modern smart energy meters do measure reactive power and even communicates with the power distribution companies to better be able to keep the grid stable. Many houses deliver power back to the grid by their free energy solar panels. In this country (DK) with lots of wind turbines the grid has proven itself stable even when running the whole country on only wind power during days with much wind. I think this is attributed to a smart grid with communication between the wind turbines. No more power must be made than is being consumed to prevent the frequency of the grid in changing. During 24 hours this account must fit.
Regards
Ole
---In [email protected] mailto:[email protected], <mkjekyll@...> mailto:mkjekyll@... wrote :
Ole, What are they doing to keep enough reactive power available on the industrial 3 phase source lines sinking to many AC induction motors?
On 7/5/2019 1:53 AM, onielsen@... mailto:onielsen@... [EVGRAY] wrote:
Hi Hector,
The power factor correction became necessary when regulations required less pollution on the grid. The original sine wave from the generators of the power plants got more and more harmonics.
'FROM EDN EUROPE: Active power factor correction' https://www.edn.com/electronics-news/4359296/FROM-EDN-EUROPE-Active-power-factor-correction https://www.edn.com/electronics-news/4359296/FROM-EDN-EUROPE-Active-power-factor-correction.
'New power regulations bring power-factor correction to lower-power supplies' https://www.edn.com/electronics-news/4363595/New-power--regulations-bring-power-factor--correction-to--lower-power-supplies https://www.edn.com/electronics-news/4363595/New-power--regulations-bring-power-factor--correction-to--lower-power-supplies.
Now there are active power factor correction integrated circuit controllers put in many power supplies. I guess they will work for motors too.
Regards
Ole
---In [email protected] mailto:[email protected], <arkresearch@...> mailto:arkresearch@... wrote :
Most of the people in the background had being getting patents and many of the things they have are just result of the RV R&D from Inverter fridges .6 amps to washing machines and window air conditioners that had gone from 12amps and 10 amps to 5 and 3 amps .
well if they want better things that that PAY me because this AMERICA is fucking capitalist and sucks democrat donkey dicks on its way to a feudal communist hell were everyone will be equally fucked !
all i had given can be lost in 17 minutes along with what you had received in the last 200 years !
( not any longer my problem ) as told many here had looped , that is neither my problem if you don't give a shit all i know that upon pooping up this same people are the ones buying them out to shut up or fucking their lives for good !
green energy movements are a farce , as well as all involved in false interests controlling all
that is a fact !
(H)
---In [email protected] mailto:[email protected], <mkjekyll@...> mailto:mkjekyll@... wrote :
Hector,
I don't need the RV I have other ways that are more portable. I was just pointing out why you don't get funding when there are people in the background who have been waiting to fund.. Free energy is a weird duck, some people can do it for awhile then try as they might cannot replicate their earlier efforts then often get caught faking it. I probably would have built an RV though for the learning but realized that getting stuck on an advanced modality and asking for help would be like milking a stone, and I don't live where stones have milk.
You designed something got a bunch of people to follow you. Well at least you did a hell of a lot more than most, but in the end denied your students advancement rather than the inverse per your claim. The "people don't read" argument lacks merit.
Have a nice 4th, don't blow anything up.
On 7/4/2019 8:44 AM, arkresearch@... mailto:arkresearch@... [EVGRAY] wrote:
believe it or not its all public its simply people don't fucking read and after Brian prater went public with his looped lawnmower engine and what happened to him i don't force anyone to show they looped , if i ask funding for R&D its for making public other things that make all you have mere kids toys , but in a country that prefers to fund a fucking wall at the tune of $20 million in one week instead of funding free energy R&D .
I may say may it go to hell !
dont ask me for more tips ! and just fucking READ ! getting stuck
(H)
---In [email protected] mailto:[email protected], <mkjekyll@...> mailto:mkjekyll@... wrote :
Hector, The reason you are not funded is because you drop the ball on the RV and do not explain in simple terms step by step how to add the parts to the third phase to move it up to the killowatts. these people put hard earned money and time into the project and follow your teaching and you dropped the fucking ball and then bitch no one funds you, Cut the victimology bullshit, step up and give directions like original Rv how to go to next level, if indeed it can go to a next level? it's July and no aliens at the door... You leave the earth and could have done something and like the rest Gray, Sweet etc. will take it all to the fucking grave, very sad indeed! Dropping breadcrumb clues does not count. False Evidence Appearing Real
...