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Application Classes—Subsections 3.3.1 through 3.3.4 define four application classes and their associated, progressively less severe, qualitative requirements on frequency, voltage, and waveform. Criteria of Use—Subsections 3.4.1 and 3.4.2 distinguish land use from marine use. Classification of Operation—Subsections 3.5.1 and 3.5.2 distinguish the character of Single Unit Operation from Parallel Operation. 4.2.2 Prime Mover Engine Configuration—Requires assurance from the manufacturer that the engine is fit for service. Requires engine conformance with EGSA 101S and ISO 3046. Engine Types—States focus of the standard is predominantly diesel but applies generally to gas turbine, gasoline, or natural gas engines. 4.2.3 Generators (Alternators) Design Standards—Requires generators be designed to meet appropriate sections of NEMA MG1 and IEC 34. Note: The latter was not listed in Section 2. This subsection refers to maximum temperature rise defined in NEMA MG 1 and torsional compatibility of generator set components. Ratings—Equipment rating stated in kW or kVA at assumed minimum power factor of 0.8 lagging and at specified voltage and current. 4.2.4 Voltage Regulators (See EGSA STD 100R) Application—Defines when VR is needed. Voltage Sensing—May be single or 3-phase. Voltage Adjustment— ±5% of nominal rated voltage Voltage Regulation Accessories—Covers in 6.4.1 through 6.4.5 parallel operation, motor starting, under frequency protection, over voltage protection, and electromagnetic interference. Two of these are hard requirements (provision for reactive droop compensation and under frequency protection); the other three appear to be purely advisory. 4.2.5 Control and Monitoring Panel Configuration—Refer to 101S. Construction—Must conform with applicable NEMA and ANSI standards. 4.3PDF Image | PNNL 13277
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