How Buchholz Relays Work

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This 3D animation shows how a Buchholz relay works. The 3D animation explains clearly each of the three main faults a transformer is likely to have and how the Buchholz relay triggers either an alarm and/or shutdown depending upon the severity of the fault.
The 3D model in this video is based upon a design at Mibos.com.
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▶️Introduction
We discuss the Buchholz relay’s main components and how they protect the electrical transformer. Compared to gas actuated relays, a Buchholz relay has three functions, but a gas actuated relay has only two.
Buchholz relays are only fitted on liquid insulated electrical transformers and are designed to operate with the following electrical faults:
Fault 1
Large Electrical Fault
Fast and Large Amount of Gas Accumulation
Result: Transformer Alarms and Trips (shutdown)
Fault 2
Minor Electrical Fault
Slow Gas Accumulation
Result: Transformer Alarms
Fault 3
Low Insulating Liquid Level
Insulating Liquid Level Drops
Result: Transformer Alarms and Trips
#saVRee #PowerEngineering #IndustrialEngineering

[@savree-3d]

Want to continue learning about engineering with videos like this one? Then visit: courses.savree.com/ Want to teach/instruct with the 3D models shown in this video? Then visit: savree.com/en

[@romanmark8403]

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[@codykyler5558]

@Roman Mark Instablaster ;)

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[@fsimz]

The explanation is clear, and the 3D animations are beautiful! This channel is a gold mine. Thank you so much. Please do more EE videos.

[@JFPizarro]

The best explanation of bucholz relays on youtube. Congratulations!

[@thakurelectrical4039]

kzbin.info/www/bejne/hWfbkJeDgadgeaM...

[@BeyondDuctTapeFixItRight]

Terrific video! @6:28 audio calls out the lower float dropping when it's the upper one that is dropping.

[@bothayonela4161]

very clear explanation with animations

[@alexandermarcellinus823]

Good guide

[@savree-3d]

Thanks!

[@JimFly01]

Great video, do you by chance have one of these good videos for Sudden Pressure devices, not of the buchholtz type but for the Nitrogen space or Oil , ?

[@CHLEOMENTETV]

Best explanation I have watch.. Congrats sir..nice one!

[@kapacity_man]

Best explanation on bucholz relay

[@thakurelectrical4039]

kzbin.info/www/bejne/hWfbkJeDgadgeaM...

[@electriciansmate1987]

Great video, thank you!

[@josdavids]

Very helpful explanation

[@boombeats008]

Best video

[@bourun790]

អគុណបង

[@mattmanison8791]

Absolute a1 explanation and graphics!

[@Luzt.]

Baffle plate works with liquid whose movement is created by displacement by large/quick pocket of gas in the main tank. You should also give more information regarding internal workings before presenting scenarios. Lower contacts, as far as I noticed, were never mentioned. Thank you.

[@mariobravo6879]

Very good

[@eng.omareyadaljorani9954]

Many thanks for your efforts

[@TheadorJohnson]

Well done thank you for the detailed info about components.

[@hussain6953]

Thanks a lot. Very clear explanation.

[@sauravmazumdar5369]

Excellent...

[@liezlramos4038]

Thank you

[@thakurelectrical4039]

kzbin.info/www/bejne/hWfbkJeDgadgeaM...

[@omotayoopanubi896]

This is amazing. Thank you for this explanation

[@arumugarajapalraj9251]

Hi Sir, Thanks for video Could you please share Dry type transformer Annual maintenance and what kind of tests need to taken

[@wasswasemakula5702]

Thx keep it up

[@mahmoudmosleh749]

wow, this is amzing keep it up!

[@mahmoudmosleh749]

@@savree-3d sure did.. Best of luck 🌸

[@GensetExpert]

thanks a lot

[@MrNat4Real]

Thank you for taking your time to make this video; you explained it well, and I found it helpful. You said nothing about a mercury switch. Is this what you meant by the contact?

[@tylerminix2028]

I'm interested in the difference between the Buchholtz relay and other forms of sudden pressure relays. Is there no other difference (in principle) apart from where the two are installed?

[@AlonsoLioneth]

Does gas gets analyzed too or just oil? is DGA applied to both samples?

[@muhammedbabayode7542]

Dissolved gas analysis test is done on transformer oil to check for dissolved gases such as carbondioxide, methane, etc

[@gilbertotorres8657]

Does the transformer manufacturer provide the bucholtz for the transformer? If I have to choose a bucholtz relay myself for let’s say a 100 MVA what are the most important parameters when selecting one?

[@nicholasdevoy6869]

Hi there, great video! It really helped me out a lot. One thing I don’t understand is how the bottom float drops when level is low without the gas. Apologies if I have missed it in the video but just can’t get my head around that bit, thanks in advance :)

[@farhantanvirrifat2893]

Without insulating oil, how can the bottom float thing can float?

[@rjshtk]

Would you care to tell me why there are two bleed valves on top of the Buchholz relay's chamber? Even though one of the valves does nt exactly look like a release valve..

[@rjshtk]

@@savree-3d How to test the baffle ?

[@infinitenoodle7894]

@@savree-3d would it not reset automatically or would you have to pull the float up to reset it?

[@nagypeter2138]

Not bad... not bad... BUT! You should show each animations a few times, as it was a loop. It would be useful to see the processes from more angles, with different zooms. It would be very helpful to see the gas flowing if it had a color. You should have mentioned the mercury switches and their output signals on the top of the Buchholz!

[@alfandiwicaksono8146]

mantap gan

[@christopherhulse8385]

Buchholz relays fitted to electric locomotives as well.

[@RahulGupta-mx7xi]

Rahul Gupta

[@themaskedmutantreal]

thats my last name