Today the job will be dealing with one checking and preventative maintenance. It is reported that the center control room air condition 1B tripped off after started and hence we need to check the control circuit and compress motor. I followed abang Razak to do the checking and the motor is in good condition.
Next is the steam turbine motors PM inspection. There are 2 inspections, general electrical and general physical inspection. For the electrical inspection, we checked for the on load current while for the physical inspection, we checked the bearing vibration and body temperature for the motor. There are 4 types of vibration need to be checked, that are non-driving end (NDE) X and Y axis and driving end (DE) X and Y axis. Each of them must be measured and the reading is recorded.