Trans­former main­te­nance & its im­por­tance

Electrical Monitor - - POWER MATRIX SOLUTIONS -

ain­te­nance is an en­gi­neer­ing and man­age­ment func­tion with the fol­low­ing ob­jec­tives: En­sure re­li­able ser­vice through­out the life of an equip­ment Put back an equip­ment which has bro­k­endown into sat­is­fac­tory work­ing con­di­tion in a min­i­mum pos­si­ble time, keep the main­te­nanace cost at low­est pssi­ble. Ne­ces­sity for Main­te­nance: The con­ti­nu­ity of power sup­ply from a trans­former de­pends not only on the care with which a trans­former has de­signed and con­structed it, but also the steps taken by the user to carry out reg­u­lar checks or its work­ing con­di­tions.

Upon in­stal­la­tion of the trans­form­ers, all steps must be taken to en­sure that it func­tions nor­mally, par­tic­u­larly with re­gard to cool­ing, aux­il­iaries and the pro­tec­tive devices. More­over the lay­out of the sub­sta­tion must al­low suf­fi­cient space for han­dling and in­stalling the trans­former while main­tain­ing the re­quired safe dis­tances from live parts for per­son­nel to work.

The di­ver­sity and scope of main­te­nance op­er­a­tion vary with the type of Trans­form­ers, its power and its rel­a­tive im­por­tance in the

MPROFILE sup­ply sys­tem. Each user de­vel­ops his own rou­tines, ap­pro­pri­ate to his needs. A cer­tain num­ber of gen­eral guide­lines can be given but the ways in which they are ap­plied or sub­jected to wide vari­a­tions. Con­sumers ex­pect con­tin­u­ous power sup­ply. Break­downs af­fect the in­dus­trial out­put and econ­omy in case of trans­former fail­ure, it takes con­sid­er­able time to re­sume power sup­ply. Trans­form­ers are costly; pro­cure­ment time varies from 2 to 20 weeks de­pend­ing on the type of trans­former. Ob­jec­tives of main­te­nance are to en­sure con­tin­u­ous power sup­ply tak­ing into ac­count the planned and the peak loads; pre­vent en­forced stop­pages; en­hance the life of trans­former; and, achieve cost ef­fec­tive­ness. As stated ear­lier that there is no es­cape from nor­mal long term age­ing process. Pre­ma­ture fail­ure can be avoided by proper main­te­nance. Preven­tive main­te­nance is the key to keep­ing the equip­ment healthy and in ser­vice .The type of main­te­nance prac­tices be­ing fol­lowed usu­ally are: rou­tine; cor­rec­tive; planned; preven­tive; proac­tive; time-based main­te­nance; con­di­tion-based; de­sign out; emer­gency and re­li­a­bil­i­ty­cen­tered.

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