for loose or broken clamps and general secureness of the muffler. Check all pipes and ducts associated with the exhaust system for holes, dents, signs of extreme corrosion, and metallic deterioration. Also, check for loose and broken bolts. Check the exhaust ram cap for signs of corrosion and freedom of movement. Check the breather tube and associated hoses for loose clamps, holes in the hoses, and loose bolts.
WARNING Do not attempt to remove the radiator cap until the radiator has cooled to a point where there will be no built-up steam pressure. Failure to observe this warning could result in second- or third-degree burns.
The operator's log (also called the station log) is a complete daily record of the operating hours and conditions of the generator set. The log must be kept clean and neat. Any corrections or changes to entries for a watch must be made by the person who signs the log for that watch.
The log serves as a basis for determining when a particular piece of electrical equipment is ready for inspection and maintenance. Current and previous logs can be compared to spot gradual changes in equipment condition. These changes might not otherwise be detected in day-to-day operation.
Defects discovered during operation of the unit should be noted for future correction; such correction to be made as soon as operation of the generator set has ceased.
Making accurate periodic recordings is particularly important. The intervals of these recordings will be based on local operating conditions.
The form used for log entries varies with the views of the supervisory personnel in different plants, and there is no standard form to be followed by all stations. Regardless of form, any log must describe the hourly performance not only of the generators but also of the numerous indicating and controlling devices.
Figure 3-18 shows one type of log that may be kept on the generator units of a power plant. This is only a
Figure 3-18. - Typical generating station operator's log.Continue Reading