UBCFF


The amount of heat generated will decide the size and shape of the main current-carrying conductor, the rating and size of the enclosure and the provision of external cooling, if necessary. As noted earlier, forced cooling, if it can economize on the cost of the bus system, can be used. The one factor against the forced cooling is the need for piping network, additional equipment and its regular upkeep. Breakdown will not result in a total shutdown but a reduced rating of the bus system and an underutilization of the generating unit. For larger ratings, however, above 2500() A, forced cooling may become mandatory to dissipate the great heat generated in the enclosure. In such cases the size of the enclosure which is restricted by the size of the generator terminals may prove insufficient to dissipate the heat generated.  [c.944]

Maintenance, defined as the upkeep of property, is one of the most important operations in a plant. The manufacture and maintenance of turbomachinery are totally different. The first involves the shaping and assembly of various parts to required tolerances, while the second, maintenance, involves restoration of these tolerances through a series of intelligent compromises. The crux of maintenance technique is in keeping the compromises intelligent.  [c.722]

Maintenance is not a glamorous procedure however, its importance is second to none. Maintenance procedures are always controversial, since the definition of upkeep varies with the individual interpretation of each maintenance supervisor. The latitude of maintenance ranges from strict planning and execution, inspection and overhaul, accompanied by complete reports and accounting of costs, to the operation of machinery until some failure occurs, and then making the necessary repairs.  [c.722]

A listing of community and industry emergency equipment and facilities, along with the names of those responsible for die equipment and its upkeep  [c.89]

Prevention and Protection It is difficult to cope with a potential UVCE once an accidental release has occurred. Consequently, the best procedure to guard against a UVCP, Is to prevent the release in the first place. Safe piping is essential to protect against UVCEs. Forty percent of all major plant losses are due to piping failures, and corrosion is one of the largest single causes of plant and equipment breakdown (Hancock, S er Piping Awareness Training for the Process Industries, Plant/Oner. Prog., vol. 9, no. 2, April 1990, pp. 114-116). Moreover, mistakenly open valves that causea mammoth emissions of hydrocarbons have resulted in two major UVCEs with a total of 29 deaths in those two instances. Thus, close scrutiny regarding piping and valves is mandatory to help prevent UVCEs. Some other protection methods are summarized as follows.  [c.2321]

Stouppe, D. E., Air Conditioning Upkeep, The Locomotive, The Hartford Steam Boiler Inspection and Insurance Co., V. 69, No. 1 (1994).  [c.367]


See pages that mention the term UBCFF : [c.54]    [c.202]    [c.71]    [c.636]    [c.942]    [c.438]    [c.438]    [c.439]    [c.439]    [c.439]    [c.444]    [c.445]    [c.445]    [c.446]    [c.502]    [c.502]    [c.514]    [c.546]    [c.550]    [c.80]    [c.115]    [c.734]    [c.193]    [c.338]    [c.469]    [c.503]    [c.1039]    [c.1156]   
Computational chemistry (2001) -- [ c.54 ]