• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
Operating Mechanism Adjustment
Bus Bars and Incoming Line Compartments

TM-5-3895-374-24-1 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
Page Navigation
  114    115    116    117    118  119  120    121    122    123    124  
TM 5-3895-374-24-1 Standard Motor Circuit Protector (MAG-GARD) Circuit ?Breaker Application Information I-22 The    Canadian    Electrical    Code    requires    that magnetic    starters,    used    in    combination    with adjustable   magnetic   trip   only   circuit   breakers, have an overload relay in each conductor. The adjustable magnetic trip setting will be set at "LO" by the factory The user may need to adjust this  setting  for  proper  motor  start-up  The  700% and  1300%  of  full  load  current  (FLI)  set  point limits  are  outlined  in  RULE  28-210  of  the  C  E Code 1982. After   obtaining   the   motor   FLI   from   the   motor name-plate,    the    user    may    then    select    the adjustable trip setpoint  of  700%  FLI  to  test-start the motor. Further adjustments may be required for   motor   load   characteristics   (not   to   exceed 1300% FLI). NOTE MAG-GARD circuit breakers are    selected    from    the    MAG-GARD    selection table in the Square D Digest. MAINTENANCE WARNING:    Turn    off    power    ahead    of    motor control    center    before    performing    any    of    the following    operations.    Discharge    capacitors,    if present.   Positively   ascertain   that   equipment   is totally    de-energized    by    using    an    appropriate instrument, such as a voltmeter. When separate control  circuits  exit,  ascertain  that  they  are  also de-energized. M-l The following maintenance procedure should be followed     before     energizing     any     new     motor control  center  equipment  Regular  maintenance should  be  performed  at  least  annually  or  more frequently   depending   on   service   conditions   or established    maintenance    policy.    Maintenance should  also  be  performed  following  any  service electrical fault or unusual occurrence. Enclosure M-2 Examine  the  interior  and  exterior  of  the  motor control  center  for  signs  of  moisture,  oil  or  other foreign material. If present, eliminate the source of  foreign  material  and  clean  the  motor  control center. Clean   the   interior   and   exterior   of   the   motor control center with a vacuum cleaner Do not use compressed    air,    as    it    will    only    redistribute contaminants    to    other    surfaces.    Check    the enclosure   for   any   damage   that   might   reduce electrical clearances. M-3 Examine  the  finish  of  the  enclosure  Touch  up the     paint     if     necessary     Replace     any     badly corroded or damaged enclosure parts. (page 3-131)







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.