Apertura de cuchilas 230 KV

Arco formado por la apertura de unas cuchillas en una subestación de 230 KV

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Tags:

• arco
• electrico
• cuchillas

[wiiftube]

y como juntas las cuchillas denuevo? algun trabajador se anima a juntarlas?

[Andyman3k]

I know when one output of my 12kv transformer touches anything metal, it arcs a teenie bit to it before coming in contact with it. I think it's because the xformer and the metal are at different voltage potentials. When disconnecting, the electricity wants to keep the metal at the same potential as long as it can. The arc strength varies directly with the size of the metal object, in this case, the long powerlines. I might be wrong though..

[sersalaoli]

@wiiftube La mayoría están motorizadas, es decir son abiertas o cerradas por motores.

[sersalaoli]

@PYRS9 Las cuchillas se usan para cuando van a dar mantenimiento a otros equipos como los interruptores. Y obviamente el mantenimiento se hace con el equipo desenergizado, sin embargo la energía siempre se debe estar suministrando, y se suministra por un "camino secundario" en donde se encuentran las cuchillas, cuando se ha realizado el mantenimiento, se regresa al "camino principal" por donde estaba pasando la energía, y es cuando se abren las cuchillas.

[PYRS9]

abren las cuchillas solo cuando tienen que reparar algo?

[laloIqq]

89J

buen video... ponga mas

[balita123456]

oies y donde esta el arco?

[form109]

no huge buzzing arcs here,just little zapping sparks.

[dacvidyokpi]

la lokura weon

[Arkthurius]

To be more precise on my comment, today I checked the manual at the substation, the main transformer that steps up the 13,800 volt generator output to 115,000 volts, is of 10 MegaVolt-Ampere (MVA).

[Arkthurius]

The power plant i work at has two generator producing 84MW each. The generator output voltage in the line is 13.8kV. The primary transformer before entering the plant substation step it up to 115kV. That is the maximum line V we use in most mexico. I dont know where this video was recorded.

[Arkthurius]

They are not sized according to Voltage but according to Electric apararent energy (KVA's). This one could be somewhere between 500KVA or 1MVA. That's what I think. I dont have any info about location.

[wildchild8635]

Well, they bring them in by crane of course, and then a tanker truck comes in to fill it with an insulating oil.(approx. 500gal) Then they connect both sides and use switches to energize it. Long process but simply stated.

[wildchild8635]

Well in that picture, it looks like thats a 138KV to 12KV, so its pretty heavy-duty compared to the one you speak of. Why are yours so big if they handle small voltage like that?

[Arkthurius]

Eso solo permite trabajar en el transformador con mayor seguridad porque ya esta desenergizado, como cuando bajas el switch de tu casa para cambiar un foco, pero aqui el voltaje es un poquito mas peligroso por eso mejor de plano es "bajar el switch".

[Arkthurius]

thanks, i had not paid much attention to the capacitance stuff. I think these ones also had the safe systems that send the capacitance energy or magnetic energy to ground or something, just like the safe air gap to ground found on tesla coils to send any potencial to ground.

[frosty956]

even with no load arcs can still be formed. There is as you mention the magnetising current of transformers but also the charging current caused capacitence of the transmition lines.

[elreservista]

eso permite trabajar en la subestacion ??

[Arkthurius]

OK, on some other videos even with less voltage, there are arcs formed, here seems not to be, some say there are arcs only when disconnecting under load, some say that even that with no load the magnetic energy on the transformers can create the arc, I study electricity but i am not sure about this situation... any comments?

[jmartis2]

that was not under load right?

[kaio9000]

buenisimo

[CARU840210HDFSSL04]

jajajaja....!!

[volvo1971]

Very carefully.

[MisterCrash84]

At the factory where I work we've got 6 of those transformers and they are about 15 inches higher and wider :P Transforms 52.750 Volts to 400 Volts 3 Phase .

[TheRealDj2quick]

wow