TM 5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-21.The date2.The serial number(s) of the recording meter(s)3.Generator set identification4.The recording chart speed(s)5.The data reading number.(c)Place all instrumention referred to in paragraph 16-15b in operation.(2)Test.(a)Start and operate the generator set and allow the set to stabilize at rated load, rated voltage, andrated frequency. During this period operate the recording meter(s) at a chart speed of not less than 6inches per hour, and record all instrument readings including thermal instrumentation at minimumintervals of 10 minutes. If necessary, adjustments to the load, voltage and frequency may be madeto maintain rated load at rated voltage and frequency. Adjustments to the voltage and frequencyshall be limited to those adjustments available to the operator, specifically adjustments to the voltageor frequency adjust devices. On sets utilizing a droop-type speed control system as the prime speedcontrol the speed and droop portions of the control may be adjusted. No other adjustments to thevoltage and frequency control systems shall be made. Adjustments to load, voltage, or frequencycontrols shall be recorded on both the data sheet and the recording chart(s) at the time of anadjustment. Stabilization shall be considered to have occurred when four consecutive voltage andcurrent recorded readings of the generator (or exciter) field either remain unchanged or have onlyminor variations about an equilibrium condition with no evident continued increase or decrease invalue after the last adjustment of the load, voltage or frequency has been made.(b)After stabilization has occurred, drop the load to no load and reapply rated load in 50 percent loadincrements a number of times (three should be sufficient) to ensure that the no load and rated loadvoltage and frequency are repeatable and that the frequency and voltage regulation is within thelimits specified in the procurement document. If any adjustments are necessary, paragraph (a) mustbe repeated. Reapply rated load.(c)The recording meter chart speed(s) shall be 12 inches per minute throughout the remainder of thistest. At each of the following load conditions (one step) operate the set for a minimum of 40 seconds(or the short terms stability period plus the allowable recovery time as specified in the procurementdocument). During each load condition read and record all instrument readings except termalinstrumentation (for three-phase sets it is16-9
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