Analysis Characteristics Of Pendulum Oscillation In PLTGL-SB I.S. Arif, I.K.A.P Utama, R. Hartono, J. Prananda, R. Isnaini and T. Rachmattra A E3S Web Conf., 43 (2018) 01005 Published online: 29 June 2018 DOI: 10.1051/e3sconf/20184301005