Title :
Post-arc current in high voltage SF6 circuit-breakers when breaking at up to 63 kA
Author :
Blez, B. ; Guilloux, C.
Author_Institution :
Electr. de France, Paris, France
fDate :
4/1/1989 12:00:00 AM
Abstract :
Post-arc current measurements were made on a high-voltage SF6 circuit breaker. A pyrotechnic device was used to protect the measurement shunt. The tests, performed at high current values between 40 and 63 kA, gave post-arc current levels of 0.5 to 2 A. Interpretation of the experimental results by the generalized Mayr model led to the determination of a set of parameters characteristic of the apparatus tested, thereby making it possible to find the test results and, in particular, to forecast cases of thermal failure
Keywords :
circuit breakers; electric current measurement; gaseous insulation; sulphur compounds; 0.5 to 2 A; 40 to 63 kA; HV circuit breakers; SF6 circuit breakers; generalized Mayr model; post arc current measurement; Bandwidth; Circuit testing; Current measurement; IEC standards; Laboratories; Performance evaluation; Power measurement; Protection; Sulfur hexafluoride; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
