In the restructured environment, electrical utilities are using distributed generation sources and energy-efficient technologies to meet power shortage / power quality issues, which raised the fault level and power surges. The fault current level in many places may often exceed from their withstanding capacity of present infrastructure. Due to poor financial viability, Indian electrical utilities are interested in avoiding up gradation of existing networks with enhancement of network flexibility, sustainability and reliability. Therefore, it is needed to control fault currents to a level at which conventional protection equipment can operate safely with the consideration of financial burden on electric utilities. Looking to the Indian power sector, the fault current limiter (FCL) is a promising option to enhance the useful life of the equipment, even though exceed from their withstands capability. This blog is aimed at describing how the researcher and Best universities in Jaipur like JK Lakshmipat University can support utility engineers for the FCL application.
FCL is adaptable to electrical utility constraints such as location choice, modularity and space availability. Under normal operation, these devices have a negligible impedance until a fault event occurs. They are of two types: Superconducting fault current limiter (SFCL) and solid-state fault current limiter (SSFCL). SFCL uses superconducting based material to limit fault current while SSFCL controls the same by using high-speed solid-state switching devices. On the basis of fault current limiting capacity, restoration time and voltage sag mitigation parameter, it is observed that the solid-state fault current limiter is more efficient than the solid-state fault current limiter. The Key benefits of fault current limiter are: Continue reading