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PHASE SEQUENCE TEST (ROTATION)
For Class II Sets

TM-9-6115-464-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 15 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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ARMY TM 9-6115-464-34 AIR FORCE TO 35C2-445-2 NAVY  NAVFAC  P-8-624-34 4-23.  MAXIMUM  POWER  TEST. a. General. The maximum power of a generator set is a function of the ambient conditions (temperature and altitude) and the mechanical condition of the engine at any particular time. b. Apparatus. Instrumentation for measuring load conditions, field voltage and current, pressure and temperatures shall be as described and illustrated in MIL-HDBK-705. CAUTION This procedure subjects the generator set to a severe overload which may be damaging if maintained for too long a period of time. Failure to observe this caution could result in equipment damage. (1)   Preparation   for   test. (a)  Connect the load and instrumentation in accordance with the applicable figure of MIL-HDBK-705, Method 205.1, paragraph 205.1.10 for one voltage and frequency. (b)  Install appropriate thermocouples to measure the following temperatures: 1. Engine coolant (engine outlet and inlet) 2. Exhaust gas(es) (the exhaust manifolds shall be drilled and tapped as close as possible to the combustion chamber(s). 3. Lubricating oil sump. 4. Engine combustion air in (located at the inlet of the intake manifold). (c)  Install appropriate pressure instrumentation to measure the following items: 1. Exhaust pressure (combined exhaust gases in exhaust manifold). 2. Intake air manifold pressure (between air filters and manifold). (d)  Obtain and record the barometric and water vapor pressures (see MIL-HDBK-705, Method 220. 2). (e)  Bypass the set circuit interrupter. (f)  Connect the set to a source of fuel containing a specified fuel required by the procurement document. 4-23







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