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junction box. The generator construction will allow connection to the load through the top, bottom or either side of the junction box. 1. The conduit box shall contain two compartments: one to house the rotating rectifier and PMG, and the other to house the connection area and regulator. This is to separate the rotating elements from the load connection and voltage regulator adjustments. E. Verification of Performance. All performance and temperature rise data submitted by the bidder shall be the result of the actual test of the same or duplicate generators. Temperature rise data shall be the result of full load, 0.8 power factor heat runs at the rated voltage and hertz. All performance testing shall be done in accordance with MIL-STD-705 and/or IEEE Standard-115. F. Efficiency. The generator efficiency shall be determined in accordance with NEMA MG-1, paragraph 22.44. All test results shall be submitted to the Engineer for approval. 17.2.04 VOLTAGE REGULATION A. The generator shall be equipped with a voltage regulator to maintain voltage within limits as specified below: 1. Stability: 1/2% maximum voltage variation at any constant load from no load to full load. 2. Regulation: 1% maximum voltage between no load steady state and full load steady state. 3. Transient: 20% maximum voltage dip in most severe motor starting condition. See paragraph 1.01. 4. Transient: 2 seconds maximum voltage recovery time with application or removal of 0.8 P.F. full load. B. The regulator shall be a solid state type using transistors or SCR's. The unit shall include volts/hertz underspeed protection, 3 phase RMS sensing, and overexcitation protection. The regulator shall also provide loss of sensing protection, regulator current limit, temperature protection and an engine unloading circuit. EMI suppression shall be provided meeting MIL- STD-461 B, part 9 standards. 17.2.05 GENERATOR FULL MAIN LINE CIRCUIT BREAKER A. A generator main circuit breaker shall be provided rated at manufacturers recommended amperes minimum frame size, and volts, 100% rated. The interrupting capability shall be greater than the generator short circuit capability, but not less than 60,000/30,000 symmetrical amperes at 240/480 volts. The breaker continuous current trip rating shall be selected to provide overload protection for the generator. B. The breaker shall be provided with a shunt trip device. The generator starting circuit battery system will be used as the power source for the shunt trip circuit. The shunt trip coil voltage shall be suitable for use on the 17-7 1 a 3. A-I.