Curtis, this is excellent.!!! Please make more of these training/ informational videos. What I've always wondered was why a 40 or 50 VA transformer with a 3 amp fuse or even a 5 amp fuse doesn't burn up before the fuse blows. My guess is the fuse is a weaker link and the transformer can take a little bit more abuse than a fuse.
If your power factor is 1, which is perfect power factor, then your VA rating and watt rating will be identical. If your power factor is less than 1, the VA rating and watt rating will differ from each other.
Good info to know! Hope it’s nothing serious with your van but good you have a backup plan This info is something that gets overlooked in a bunch of electrical and electronic applications
Thank you, Thank you, Thank you ... I always thought that VA was the same as Watts, but have ran into too many ... people who tell me no, their different, VA is Volt-Amps, NOT Watts. *sigh*
For our purposes they are the same, there is a difference in semantics that an electrical engineer can explain, and may make a difference in some kind of larger equipment. But, according to ohms law VxA = Watts
AC circuits have to take into account the reactive power. Apparent power in Volt-Amperes (VA) = Real power in Watts (W) + Reactive power in Volt-Amperes Reactive (VAR). The reactive power is the part eaten up in the magnetic field for inductors, coils, windings or the electric field in capacitors, etc. The current required in an AC circuit is the amount to produce the Apparent Power at the voltage. A channel, Ludic Science, has a great video showing the impact of an inductor or capacitor in an AC circuit called 'Electrical Reactance Demonstration'. You see how they reduce the brightness of a bulb
while the transformer can be overheated and burn out by overloading below a fuses current, it doesn't happen often when a high current short occurs or failed coils that go very high current. the issue is mostly overloaded transformer at time of install, but sometimes people adding things down the road. like idiots today, buying electric vehicles x1 to x3 and then wanting to fast charge one or all of them at once. 🤣 yeah, not going to happen
You should just ditch that ford as it seems like it’s always in the shop anyway. I wouldn’t want a ford as my daily driver I have owned a dodge vehicle in the past and just over a month ago i had it towed to the scrapper what a piece of shit (1999 Dodge Durango 177,000) 2 engines 2 transmissions and a whole lot of endless problems.
@@TomLawson05 the old vans early 80's and back.... they drank gas of course. post that into the early 90's less reliable overall and known issues, but still fair. post 1993, so-so.
@@TomLawson05 I own a 2000 GMC safari for my appliance buisness I love the thing. Had a lot of issues when I first bought it used over the summer and still has some minor issues (transmission pump wines, climate blowers are noisy, front end has a minor alignment/steering issue, and no door actuators work) other than that I love the old beast especially for what I paid for it.
Good information to know for tecs just get started in hvacr
Very concise; great refresher
Thanks for the video💪🧰🥷
Excellent video Curtis.
Great video Curtis very informative
Curtis, this is excellent.!!! Please make more of these training/ informational videos.
What I've always wondered was why a 40 or 50 VA transformer with a 3 amp fuse or even a 5 amp fuse doesn't burn up before the fuse blows. My guess is the fuse is a weaker link and the transformer can take a little bit more abuse than a fuse.
Love these tech videos! Keep up the great work.
So a zoned system heat pump working with a whole house air cleaner/scrubber should work indefinitely with a 75 VA transformer and a 3A fuse?
Thanks!
If your power factor is 1, which is perfect power factor, then your VA rating and watt rating will be identical. If your power factor is less than 1, the VA rating and watt rating will differ from each other.
You should follow with a how to video on how to check the amp/ watt load on the equipment transformer in the field. Good stuff Curtis.
Good info to know! Hope it’s nothing serious with your van but good you have a backup plan
This info is something that gets overlooked in a bunch of electrical and electronic applications
Very informative 👍🏽
Awesome stuff curtis
Thanks
Good tip
Good tips.
Thank you, Thank you, Thank you ... I always thought that VA was the same as Watts, but have ran into too many ... people who tell me no, their different, VA is Volt-Amps, NOT Watts. *sigh*
For our purposes they are the same, there is a difference in semantics that an electrical engineer can explain, and may make a difference in some kind of larger equipment. But, according to ohms law VxA = Watts
AC circuits have to take into account the reactive power. Apparent power in Volt-Amperes (VA) = Real power in Watts (W) + Reactive power in Volt-Amperes Reactive (VAR). The reactive power is the part eaten up in the magnetic field for inductors, coils, windings or the electric field in capacitors, etc. The current required in an AC circuit is the amount to produce the Apparent Power at the voltage.
A channel, Ludic Science, has a great video showing the impact of an inductor or capacitor in an AC circuit called 'Electrical Reactance Demonstration'. You see how they reduce the brightness of a bulb
👍
Thanks 👍👍👍
Thk good tip
👍🏼
while the transformer can be overheated and burn out by overloading below a fuses current, it doesn't happen often when a high current short occurs or failed coils that go very high current.
the issue is mostly overloaded transformer at time of install, but sometimes people adding things down the road.
like idiots today, buying electric vehicles x1 to x3 and then wanting to fast charge one or all of them at once. 🤣 yeah, not going to happen
Howdy
😊😊👌👌
You should just ditch that ford as it seems like it’s always in the shop anyway. I wouldn’t want a ford as my daily driver I have owned a dodge vehicle in the past and just over a month ago i had it towed to the scrapper what a piece of shit (1999 Dodge Durango 177,000) 2 engines 2 transmissions and a whole lot of endless problems.
Work out of Chevy vans for 26 years very dependable
@@TomLawson05 the old vans early 80's and back.... they drank gas of course. post that into the early 90's less reliable overall and known issues, but still fair. post 1993, so-so.
Hey. That Ford is paid for.
@@TomLawson05 I own a 2000 GMC safari for my appliance buisness I love the thing. Had a lot of issues when I first bought it used over the summer and still has some minor issues (transmission pump wines, climate blowers are noisy, front end has a minor alignment/steering issue, and no door actuators work) other than that I love the old beast especially for what I paid for it.