I have a tablesaw with 2hp 208v 3ph cface motor. I just replaced it with a 3hp 240v 1ph cface motor and rewired the relay to handle the additional current load. Works like a charm.
On small motors like this star is for 415v delta is for 240v you select delta for a single phase Inverter, Large motors are designed for star delta starting at 415v.
@@dogwalker666 Exactly. With a single phase inverter you must rewire your motor from star to delta because of the reduced intermediate circuit voltage. Otherwise it would run only with a third of it´s rated power. And, as you said, the large ones are started in star and then switched to delta. Starting in delta from 0 rpm or with high torque load would draw excessive current and cause problems in the power supply, a.e. blowing fuses, at least pushing supply voltage down. But today IGBTs and MOSFETs are so cheap, that even motors in higher kW-ranges are now driven with nverters. I don´t know how it´s been done with the really big ones. I have to deal mostly with synchronous motors up to 500kW running on test benches. They all run with inverters. I´m not so familiar with the "Very Heavy Equipment" 😄
@der_bekehrer Telemecanique Inverter drives go into the Mega Watt range, I used too build them for Telemecanique. They are not Cheap however, A motor can run in star connection from a single phase Inverter, Infact it is quite a common mistake, They just have reduced Torque, It can be mitigated in the short term by setting the Voltage Boost to maximum.
That is correct but but appoxcimate 75 per cent of nominal horsepower is gained and it may refuses to start. In this case you are to have another capacitor more than 100 MF and place it on lower capacitor that already installed and after the motor started disconnect it immediately and discharge it.
In Spain we typically have 3 phases, with each one to a different house. You don't usually get 3 phases, unless you are a business with motors to power.
Could I wire up the delta setup and run the motor on a 1000w solar panel without an inverter?? .........sry but the only stupid question is the un asked one
No need to have invertor.You may mean convertor to make dc to ac.Yes it is necessary to have ac current for induction motor.But if your motor is universal one like drill to make hole not needed to have convertor.Either ac or dc will run a universal motor.They are the kind that have collector on the end shaft.@@emjay3357
@@LtdJorge i wouldn't have a clue im slowly learning of those i hope do so to me every question answered even in mock it encourages me to 1st learn then practice hopefully safely
I'm still blown away by this magic, electricity its something from nothing that left unattended could be catastrophic think unstoppable voltage modulater continually increasing voltage drawing from mains untill it causes a radical to be forced in reverse spiral against main flow....self propelled doomsday plasma supernova........lol
"connect the neutral to both ends of the capacitor" Yeah that terrible AI voice could be taken the wrong way, shorting the cap from the circuit and single phasing the motor (not in a good way).
You're better off just getting a three-phase converter. Rotary converters are really expensive but most people rather them for higher HP motor. Three-phase solid state converter for a lot cheaper and actually your best bet for a smaller horsepower motors. Although my preferred preferences using a VFD. I used one to help my cousin run his 208 3 phase Bridgeport milling machine off of single phase 240 power. The one he got had a digital readout and we was able to dial in perfectly. The one he got cost him $400 US and was about the size of a half a carton of cigarettes. It was dirty simple to hook up and dail in. For me personally anybody wanting to run a three-phase motor off single phase power a VFD is the way to go..
That 0.07 multiplier only applies to 110V 60Hz mains.
Thanks ,for 230v?
Thank you
@@bluebot8183 it happens sometimes. Quick to spot the problem but, of course, not quick to give a solution.
Shouldn't that be 0.146@@bluebot8183
Additionally: what "microforods" means? The capacity unit is farad => microfarad.
Good knowledge
Don't forget the capacitor has to be non-polarised and high voltage like 400V rated for 230 volts ac supply
I have a tablesaw with 2hp 208v 3ph cface motor. I just replaced it with a 3hp 240v 1ph cface motor and rewired the relay to handle the additional current load. Works like a charm.
If you switch from star to delta, you must also reduce the voltage by the factor square root of three.
On small motors like this star is for 415v delta is for 240v you select delta for a single phase Inverter, Large motors are designed for star delta starting at 415v.
@@dogwalker666 Exactly. With a single phase inverter you must rewire your motor from star to delta because of the reduced intermediate circuit voltage. Otherwise it would run only with a third of it´s rated power. And, as you said, the large ones are started in star and then switched to delta. Starting in delta from 0 rpm or with high torque load would draw excessive current and cause problems in the power supply, a.e. blowing fuses, at least pushing supply voltage down. But today IGBTs and MOSFETs are so cheap, that even motors in higher kW-ranges are now driven with nverters. I don´t know how it´s been done with the really big ones. I have to deal mostly with synchronous motors up to 500kW running on test benches. They all run with inverters. I´m not so familiar with the "Very Heavy Equipment" 😄
@der_bekehrer Telemecanique Inverter drives go into the Mega Watt range, I used too build them for Telemecanique. They are not Cheap however,
A motor can run in star connection from a single phase Inverter, Infact it is quite a common mistake, They just have reduced Torque, It can be mitigated in the short term by setting the Voltage Boost to maximum.
Looks like a split-phase motor arrangement, except that the winding angles are less than optimum.
That is correct but but appoxcimate 75 per cent of nominal horsepower is gained and it may refuses to start. In this case you are to have another capacitor more than 100 MF and place it on lower capacitor that already installed and after the motor started disconnect it immediately and discharge it.
@ebrahimsarrami1373 yes it's reduced the full power of motor
Teach me lol.
Motor start just like permanent capicitor motor
What is CBB and what is the number 0.07 and lastly, why would a 1500W or less motor be 3 phase
My guess is, the current running through the cap is going to be higher the bigger the motor, needing larger cap(s) (maybe industrial)
Why should we multiply with 0.07 ? Give a brief explanation pls
Will overheat under load . Power factor way way off.
Thanks
Veery fine calculation.. Like from..🇧🇩🇧🇩🇧🇩
just move to Europe we have 3 phases in almost every home
3 phase in a domestic supply is extreamly rare in UK. Using a single phase Inverter drive is the preferred method.
Not anymore, single is cheaper.
@yt-xo4lb exactly.
Yeah in Germany its standard to have 3 phases with 230/400Volts. Very convenient
In Spain we typically have 3 phases, with each one to a different house. You don't usually get 3 phases, unless you are a business with motors to power.
Very good
What is the motor voltage? If single phase?
120/240
Can this applied to star connection
Sir where to get 0.07 is that constant value thank you
This is known as "Steinmetz delta connection".
Could I wire up the delta setup and run the motor on a 1000w solar panel without an inverter?? .........sry but the only stupid question is the un asked one
No need to have invertor.You may mean convertor to make dc to ac.Yes it is necessary to have ac current for induction motor.But if your motor is universal one like drill to make hole not needed to have convertor.Either ac or dc will run a universal motor.They are the kind that have collector on the end shaft.@@emjay3357
@@emjay3357don't solar panels output DC instead of AC?
@@LtdJorge i wouldn't have a clue im slowly learning of those i hope do so to me every question answered even in mock it encourages me to 1st learn then practice hopefully safely
I'm still blown away by this magic, electricity its something from nothing that left unattended could be catastrophic think unstoppable voltage modulater continually increasing voltage drawing from mains untill it causes a radical to be forced in reverse spiral against main flow....self propelled doomsday plasma supernova........lol
Nice,thanks:)
@@RixtronixLAB welcome 🤗
A VFD would do the job also if it's a small enough motor.
yes, they are cheap, lol
What the heck is a forod?
No body knows lol.
Lovely and interesting
Great stuff🌿🍺
you forget to mention what voltage supply.
@felipeespiritu5076 this is common connection for 3 phase Motor. At any input supply
you see the 220v breaker use
How much for sale
FARADS! Not "faIrRODS"!
(Retired Air Force Radar Tech,)
Sir please video editing how
Interesting
Nc i will test later
I got it! Call an electrician.
Good 👍
this is only for three phrase low voltage. not three phrase high voltage
"PHASE"...Phrase is a written or an oral statement.
Steinmetz Schaltung
💯 💯 💯
"Microforods"
"connect the neutral to both ends of the capacitor" Yeah that terrible AI voice could be taken the wrong way, shorting the cap from the circuit and single phasing the motor (not in a good way).
👏👏👏👌👌👌👍👍🇮🇳
why only 1500
1500/220=6A
？？
a 3 phase motor will not be 1500w or less
Whatever software is reading the script cannot pronounce microfarad correctly. It's not spelled correctly either.
kann er das in deutsch erklären bitte dann muß ich nicht in 2 sprachen nach denken
You're better off just getting a three-phase converter. Rotary converters are really expensive but most people rather them for higher HP motor. Three-phase solid state converter for a lot cheaper and actually your best bet for a smaller horsepower motors. Although my preferred preferences using a VFD. I used one to help my cousin run his 208 3 phase Bridgeport milling machine off of single phase 240 power. The one he got had a digital readout and we was able to dial in perfectly. The one he got cost him $400 US and was about the size of a half a carton of cigarettes. It was dirty simple to hook up and dail in. For me personally anybody wanting to run a three-phase motor off single phase power a VFD is the way to go..
In the high school I've learnt the formula :4800*I/U for condensator!
Not pronoumced fahrad' but fah'rad
Forods? 😂
someone can't say Farads properly...
tecnologias futurista patenteada por Grup Mr protegido por direitos autorais possível a roytes trilhonarios retire já
Lol
500 x 0.07 = 0.000035
Love the accurate calculations 🤔
Lucky math is just some imaginary lie that doesn't apply in any part of the real world
Do you know what is the value of micro?