A circuit breaker is an automatically operated electrical switch that protects an electrical circuit from damage caused by overload. It detects a fault condition and unlike a fuse, it can be reset automatically to resume normal operation.
Power Grid, as part of India's National Grid agenda, is currently implementing a 1,200 kV system that would more-than-double the transmission capacity of the line from the existing 800 kV line.
There is a pressing need for such a system as ultra mega power projects (UMPPs) are heading for commissioning from next year and many independent power producers (IPP) are facing difficulty to ship power.
At least 36,000 MW capacity is coming up under the UMPP scheme and a total of one lakh MW power is expected to be added in the next few years. For this a highly efficient, high capacity and reliable power transmission system is imperative.
For this 35 companies from both the private and public sectors have partnered with Power Grid to make such a power transmission system possible.
Every company is developing a particular component for this system.
"This is the highest voltage level ever achieved. This is for the first time that industry, like in Europe, has come together to achieve a breakthrough," said Pawan Parikh, head, power transmission, Siemens Ltd.
The new 1,200 kV system will need less than half the space used by the existing 800 kV system and help India leapfrog into a new transmission age.
Source- Business today