OPERATION, MAINTENANCE AND REPAIR OF AUXILIARY GENERATORS Episode 11 ppt

... the Army Maintenance Management Sys- tem (TAMMS) System Grounding Standards Operation and Maintenance of Internal Combustion Engines Use of Antifreeze Solutions, Antifreeze Extender, and Cleaning ... spectrometric analysis of the metal par- ticles. It is necessary to collect and evaluate data for type and quantity of engine wear-metals. Study of this data shows trends...

Ngày tải lên: 12/08/2014, 16:21

... another. The extent of load shedding and the sequence of dropping loads and restoring to normal are also . contained in the plan. 2-10. Components . Standards for selection of components for ... supplied, their demand, consumption, voltage, phase, and frequency requirements. Also to be considered are load trend, expected life of the project and of the equipment, fuel cost...

Ngày tải lên: 12/08/2014, 16:21

... smoothness and absence of scratches and nicks. (d) Camshaft cams and cam faces for worn or deformed condition; journal surfaces and bearings for highly polished condition and absence of scratches, ... condition and absence of scratches, nicks, cracks, and deformation. (f) Pistons for cracks and warped condition; verify pistons, rings, and pins comply with manu- factur...

Ngày tải lên: 12/08/2014, 16:21

... readings and result in inaccurate data, dam- age and injury. All conductors and terminations should carry identification that matches schemat- ics, diagrams and plans used for construction and maintenance. e. ... level of fault current. Most units function as overcurrent trip devices and con- sist of a solenoid tripper and solid-state compo- nents. The solid-state componen...

Ngày tải lên: 12/08/2014, 16:21

... and the inside of box barriers; clean off smoke and dust. Repair moderate damage to bushing insulation by sanding smooth and refinishing with a clear insulating var- nish. Inspect alignment and ... (approxi- mately a 30 percent drop and delay of about two seconds) to start the auxiliary generator. (b) When voltage and frequency of the auxil- iary generator are at rated v...

Ngày tải lên: 12/08/2014, 16:21

... at lower part of duct is open and free of any obstruction so that moisture (rain or condensation) can run off. Check inlet temperature sensor for signs of damage. Clean sensor and surrounding area ... manufacturer of the auxiliary power unit be consulted to determine the time intervals in which the auxiliary power unit should be exercised and the length of each exercise. ,...

Ngày tải lên: 12/08/2014, 16:21

... part often will lead to a series of diffi- culties originating from by-products or effects of the initial failure. Therefore, carefully check all of the related and resultant functions of the ... problem. b. Repairs. Repairs must be prompt and thorough L to restore the engine to serviceable condition as rapidly as possible. Such repairs normally depend on the immediate repair...

Ngày tải lên: 12/08/2014, 16:21

... Proper installation and maintenance of oil filters and mechanical operation of the engine are equally important for treatment of oil. Preven- tion of contamination and removal of contaminants should ... of governors controlling AC generators affects the fre- quency and the load division between generators but has almost no effect upon voltage. f. Direct C urrent (DC)...

Ngày tải lên: 12/08/2014, 16:21

... strength of the mag- netic field, the number of coils (and number of wind- ings of each coil), and the speed at which the rotor turns. b. Current. Current is the rate of transfer (flow) of electricity, ... frequency of the output voltage are synchronous generators. Synchronous generators are usually called alternators. 4-5. Alternator types. 4-3. Types of generators....

Ngày tải lên: 12/08/2014, 16:21

... 5-685/NAVFAC MO-912 - c The proponent agency of this publication is the Office of the Chief of Engineers, United States Army. Users are invited to send comments and suggested improvements on DA Form ... Publications and Blank Forms) directly to Director, U.S. Army Center for Public Works, ATTN: CECPW-EE, 7701 Telegraph Rd., Alexandria, VA 2231593862. By Order of the Secretaries...

Ngày tải lên: 12/08/2014, 16:21