Journal of Electrical and Electronics Engineering (May 2020)
Preliminary Evaluation for the Performance of Circuit Breaker Mediated by SF6 Gas
Abstract
The objectives of this paper are to measure the resistance of insulation and contact, simultaneously the CB’s contact when opened/closed operations; and the quality of SF6 gas. Research of method, namely measure the resistance, simultaneously the CB’s contact, and quality of gas to be compared into the standard. Research results in the form of (a) insulation resistance is 97,000 MΩ and contact resistance was measured in ranging of 33 to 35 Ω, (b) simultaneously the CB’s contact was measured in ranging of 1.7 to 4.8 milliseconds, and (c) the quality of gas which includes several parameters, namely (i) gas pressure was measured 7.4 bar, (ii) impurity was measured in ranging of 98.4 to 98.9%, (iii) the dew point was measured in ranging of -41 to -45 0C and moisture content was measured in ranging of 80 to 104, and (iv) the value of products decomposition was measured in ranging of 33 to 100. Based on these results concluded, that the overall of part of circuit breaker with mediated by gas of SF6 is still a very viable when re-operated.
