MV/LV transformers - diconnecting chamber
MV/LV transformers - diconnecting chamber
(OP)
Can someone advise please about use of air insulated disconnecting chamber(between transformer tank and cable box), or the same oil insulated type, segregated from main tank.
What are benifits and disadvantages?
Can someone send me some details, sketches?
Thanks
BEN.
What are benifits and disadvantages?
Can someone send me some details, sketches?
Thanks
BEN.






RE: MV/LV transformers - diconnecting chamber
Check out leading manufacturers' websites and product data sheets. Air insulated terminal chambers are most common in the USA (and I believe elsewhere too) for medium voltages. There are however additional disconnect switches that can be oil immersed in side the main tank, but operable from outside. You can have air switches too.
Rafiq Bulsara
http://www.srengineersct.com
RE: MV/LV transformers - diconnecting chamber
You're right, this is not a common practice in Morocco for example.
Winding outputs (internal) are welded directly to transformer terminals (external), where incoming cables are connected (plug-in or pass-bars).
So there is no way for example to test cables without disconnecting them physically from transformer terminals.
I'm curious, I did a research but I didn't find interesting details.
I my understanding, these disconnecting chambers are intermidiate connections between transformer which allow sectionning (for individual tests, moving transformer...) without touching incoming/outgoing cables
RE: MV/LV transformers - diconnecting chamber
Plug in type separable connectors are very common in the US for ease of connection/disconnection and testing. They do require special tools and training though.
Rafiq Bulsara
http://www.srengineersct.com
RE: MV/LV transformers - diconnecting chamber
-types used (inside, outside?)
-pros & cons
or some manufacturer catalogue, names..
please help.
RE: MV/LV transformers - diconnecting chamber
Speak to your local or even long distance vendor/sales person.
Rafiq Bulsara
http://www.srengineersct.com