Transformer Open Circuit Test

How tf you writing

is there a considerable current flowing through the primary while secondary is open?

Thanks, clear and concise, just what I wanted.

this is awesome

Great Man U are
So thanks from Algeria

Car Wizard!

In the simple explanation given ; core losses are measured by current and voltage BUT total current is includes the lossless current of te primary inducrance ...perhaps in more deailed accounts this error will be corrected.

Sorry, lost concentration the second you started writing. Am i missing something or are you legendary at writing mirrored perfectly?

Hi, do you know if you are able to conduct the open circuit test onto a current transformer? I have seen a lot of warnings about open-circuiting the secondary winding of a current transformer. However, if you are not able to open circuit the secondary windings of a CT, then how would you calculate/measure the transformer core losses/equivalent parameters?

U are amazing... thanks for these videos

Hi Sir. Can you show us what is corner grounded 3phase system?

Holy crap, why havent I been watching your videos?

first off did this dude just write backwards or am i retarded?

duh, how does he write backwards?

How the applied voltage will affect the core loss? For example, if applied voltage is 240V, watt meter read P=100W. When applied voltage change to 2400V, Core loss change to 1000W?

great video ....ty i have a test tomorrow and it helped a lotttttt

It definitely helped, from a simulation perspective (software) I can energize either the LV or HV winding to measure the core loss correct? The reason I am asking this question is because in the EMTP-RV software the Magnetization Branch is located in Winding 1, so would that suggest that the excitation needs to be applied on Winding 1?

LOL - you don't need to go through all that - just use an ohmmeter. if it's open it will measure high resistance. prove me wrong.

Great quality video sir! 👍👍 keep it up. your videos will reach the world soon!

What would cause a voltage increase on a primary? We are having our 25k transformers 37.5k surge arrestor firing constantly. Spikes of 50kV and 500+amps

thank you brother-man

Awesome

maybe a low pass filter will help with the squeaky noise

Keep uploading you are the best

you sir all an all star!!

You're good mannn!!

Awesome videos. Very helpful!
Have you uploaded a video on short circuit test for transformers? I can not seem to find one.

How did you make this video ??
With any software or it's skill ??