@thesis{thesis,
		author={Kurniasari  Yulfikar Rizki and Pasra  Nurmiati},
		title ={PEMELIHARAAN MOTOR MAIN SEAL OIL PUMP SEBAGAI SUPLAI MINYAK PERAPAT PADA SISTEM PENDINGIN GENERATOR DI AREA PLTGU BLOK 2 PT. PJB UP MUARA KARANG},
		year={2017},
		url={http://156.67.221.169/1972/},
		abstract={In the PLTGU Block 2 UP Muara Karang system, a cooling type generator which uses explosive H2 gas when mixed with the outside air when purity is between 4-75%. So we need a system that can keep the gas H2 in the generator room is not in contact with the outside air. The system is a seal oil system, one of the parts that often experience interference is the motor seal oil pump. The problem that occurs is there is damage to the motor bearings that cause high vibration due to lifetime bearing. Troubleshooting done is doing corrective maintenance that is replacement bearing. Maintenance of motor current improvements in phase R = S = T = 3.5 A, after maintenance phase of R = 3.2 A and phase S = T = 3.5 A. Maintenance of motor vibration at part M1H 5.15 mm / s become 2.45 mm / s, on the M1V 4.40 mm / s to 1.70 mm / s, on the M1A 9.90 mm / s to 2.22 mm / s, at the M2H 4.44 mm / s To 2.21 mm / s, on the M2V section of 7.14 mm / s to 1.21 mm / s, on the M2A part 11.56 mm / s to 2.11 mm / s. Maintenance of motor temperature before repair on the bearing side 51.4 ºC to 49 º C and on the winding side 59,6 º C to 55 º C. The results of these maintenance, has been fulfilled on the motor current, vibration and temperature so that the motor is feasible to operate.}
		}