TM 5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 c. Procedure (1) Preparation   for   test.      Connect   the   load and   field   instrumentation   in   accordance with  the  applicable  figure  of  MIL-HDBK- 705, Method 205.1., paragraph 205.1.10. (2) Test. (a) Start  and  operate  the  generator  set and   allow   it   to   stabilize   at   rated load, rated voltage, and rated frequency.          During     this     period, readings    of    the    load    and    field instrumentation shall be recorded at minimum intervals of 10 minutes.  If necessary, adjustments to the load, voltage,    and    frequency    may    be made    to    maintain    rated    load    at rated  voltage  and  rated  frequency. However,  adjustments  available  to the operator, specifically adjustments to voltage and frequency adjust devices. Adjustments  to  the  load,  voltage  or frequency   shall   be   noted   on   the stabilization data sheet. Stabilization   will   be   considered   to have occurred when four consecutive    voltage    and    current readings  of  the  exciter  field  either remain    unchanged    or    have    only minor variations about an equilibrium condition with no evident continued increase or decrease    in    value    after    the    last load, voltage, or frequency adjustment has been made. (b) No    further    adjustments    shall    be made   to   any   set   control   for   the remainder of this test except for the control panel frequency adjust device. (c) For   each   of   the   conditions   in   the following  steps  allow  approximately 2 minutes between each adjustment and the subsequent instrument readings. (d) Adjust  the  generator  set  frequency for the specified minimum frequency  at  rated  load.    Read  and record all instrument readings. (e) Reduce the load to zero. (f) Adjust  the  generator  set  frequency for the maximum attainable frequency.      Read   and   record   all instrument   readings.      If   the   over- frequency   or   overspeed   protection device actuates, read and record all instrument readings just prior to the point  of  actuation  and  note  on  the data sheet that the protection device actuated. NOTE This    step    is    not    applicable    to generator  sets  having  governors that  utilize  a  threaded  shaft  and locknut(s)    or    other    mechanical means   as   a   method   of   operator speed adjustment. (g) Adjust  the  generator  set  frequency for the minimum attainable frequency.      Read   and   record   all instrument readings. (h) Repeat  16-16c(1)  and  16-16c(2)(a) through (e) for each frequency. d. Results.        The    data    sheet    shall    show    the maximum and minimum frequencies attained at rated load, the maximum and minimum attainable  frequencies  at  no  load  and  actuation of the protection devices (if applicable). Compare these results with the requirements of table 16-1. 16-13