Friday, 25 January 2013

vector group

Every power transformer has a vector group listed by its manufacturer. Fundamentally it tells you the information about how the windings are connected (delta or wye) and the phase difference between the current and voltage. EG. DYN11 means Delta primary, Wye Secondary and the current is at 11 o clock referred to the voltage.

The Biggest (man-made) Hole In the World



This ginormous hole seems like a scene from some bad"End of World Movie". But in reality it's a diamond mine in Mirna, Siberia. It measures 525 m deep and 1.25 km in diameter, making it the biggest man-made hole in the world. The suction from the hole is so powerful that helicopters flying over it have crashed.


World's first ambulance


jai bharat


ball valve for instrumentation technology


Sky Bridge Hotel!


Abu Dhabi's Sky Bridge Hotel!!
A Mind Blowing innovative designed hotel...........
Abu Dhabi Sky Bridge Hotel
Hotel Statistics at a glance...........
Total Area : 110,000m²
Number of Rooms : 264 (80-100m²)
Number of Suites : 40 (250m²)
Conference Area : 5,000m²
Commercial Area : 3,500m²Restaurants : 2,600m²
Lobby : 4,250m² (108,000m³ volume)
Roof Garden : 5,400m²
Pedestrian Promenade: 11,200m²
Parking Area : 40,000m² x 2 (800 cars x2- 200 per floor)