Showing posts with label technical. Show all posts
Showing posts with label technical. Show all posts

Wednesday, April 6, 2011

Now power substation comes in a box

Here at Bangalore, I found package substation beside road which primarily is used to reduce the size of a substation in a cubical of rated capacity of 750 kVA, which steps down 11kV to 433V. The important point that is eye caching here is that this cubical contains four circuit breaker, five mccb, instrumentation system a copper wound transformer and two grounding points. This transformer is specially manufacted to this design so as to reduce the size upto one third, manufactured by Kotsons company. The transformer is hermatically sealed without conservator, breather. The oil tank is vaccumized to reduced the space for conservator.

Monday, April 4, 2011

Hotline Maintainance

Hotline maintainance mean working on live line and maintaining the same when power is on mode. This is done by two methods that are bare hand method and hot stick method. Both method are equally important for a maintainance engineer. In bare hand method the person had wear a conductive suit that is made of microscopic stainless steel and normex material and then anyone can work on higher voltage. And hot stick method is by use of a special stick that have high insulation capacity...