HOW'S INSULATION TEST or MEGGER of 3 Phase Transformer Works

[@MohammedAhmed-io4zy]

The final important step is to demagnetizing a transformer to remove the residual magnetic flux. otherwise they they will be a large inrush currents on the primary side, that could trip the protective relays.

[@electronicatutorial]

Hipot is a different test than Megger. Hipot measures leakage current and Megger measures insulation resistance.

[@shahulexplore]

But he did insulation test ; it means device he used is meggar ; I too little confuse ....

[@electronicatutorial]

@@shahulexplore There are many insulation tests like tan delta, hipot, resitance of insulation, partial discharge etc. Hipot measures current leakage and Megger or insulation resistance measures de resistance of the insulation which is very high os supposed to be very hihg in hte Gigahoms and current leakage in in the mA.

[@Tonhu2002]

Do I need to short circuit the busing terminals of each side together

[@ssennonojohnmary4406]

Excellent demonstration.

[@maazahmad1631]

Pls can you make this test on digital megger, so we will understand the exact value

[@Greystonewet]

All right, but what about safety? As it’s a high voltage test you should prepare proper PPE like certified rubber gloves and safety-hook, and buddy system.

[@mdanwaralam2653]

What should be Megger voltage for 11000/415 volt distribution transformer

[@sujitkumardash5650]

2500 V for HT-E & HT-LT 500 V for LT-E

[@goldfish5606]

Should you not have disconnected all the line and neutral terminals of the transformer?

[@drichidominic4645]

Good work

[@meksen2000]

Why is the guard tip of the meter empty?

[@Rahul-bp9vl]

Please provide link of magger 🙏to purchase

[@runbou3485]

Thanks ticher 👏អគុណ

[@nasiruddinhimu5075]

How many time measure HV-GND , LV-GND , HV-LV....1 minute or 5min....plz details explain

[@pancakeface777]

what device did you use to shoot the video with?

[@veeruppcltarget5642]

very nise I am from India 👌👌

[@visakhpradeepedathil2177]

Why only one phase is checking in primary and secondary. Usually we need yo check between each phase and earth.

[@imadewn]

Visakh pradeep edathil Look at the winding...if one of the bushing's insulation failed, the transformer is failed. for both primary and secondary.

[@visakhpradeepedathil2177]

@@imadewn thanks bro. @ site i saw people testing between all pahses and earth. Is that ok.

[@imadewn]

Visakh pradeep edathil no problem, but it waste of time i think haha

[@toqeerahmad7378]

Great Demonstration...

[@ridhoalpha]

is this in central java? the MV is 3-phase 4-wire?

[@imadewn]

Ridho yes it is

[@razaulkarim6796]

can u give pdf link of accptable value of resistance

[@ardy680]

1000 x volt

[@electricaltech4u45]

Nice bro

[@mintipatel2183]

Right but short dtr possigen

[@surendrakverma555]

Very good

[@mirtunjaykumar9349]

Nice

[@salmansheikh838]

nice video

[@mikeadler434]

👍👍

[@dharampalsingh326]

👍👌🙏🙏🙏

[@zavidsayed340]

Aap acchi tarah se video nahin banaya clarity nahin hai aapka video sahi nahin hai

[@adarshmb5]

good video