Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters

Details Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters

2003-01-21

arxiv.org/abs/cond-mat/0301382v1

Physics

Condensed Matter

Superconductivity

4 pages, 6 figures; presented at the Applied Superconductivity Conference in Houston, TX (August 2002); to be published in IEE

Scientific paper

We present experimental results on the behaviour of a superconducting YBCO/Au meander of length L submitted to short circuit tests with constant voltage pulses. The meander, at the beginning of the short-circuit, is divided in two regions; one, with a length L1 proportional to the applied voltage, which first switches into a highly dissipative state (HDS) while the rest remains superconducting. Then the rest of the meander will progressively switch into the normal state due to the propagation of this HDS (few m/s) from both ends. The part L1 has to initially support a power density proportional to r.Jp^2 (r is the resistivity of the bilayer and Jp the peak current density). To avoid local excessive dissipation of power and over heating on one part of the wafer in the initial period, we have developed a novel design in order to distribute the dissipating section of the meander into many separated small dissipative zones. Furthermore the apparent propagation velocity of these dissipative zones is increased by the number of propagation fronts. We will show results obtained on 3kW (300V, 10A) FCL on a 2" wafer which confirm the benefits of this new design.

Affiliated with

Also associated with

No associations

Rating

Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-570801