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3 <br /> functions �� <br /> Control Nfunctions: <br /> • Speed control in no-load and isolated operation <br /> • Power output control in parallel operation system;job-specific with respect to internal and external set <br /> point values. <br /> • LEANOX control system for control of boost pressure; dependent upon the generator terminal power and <br /> the mixture temperature via the engine-driven air-gas mixer <br /> • Knocking control: adjustment of the ignition point, power output and (insofar as is locally possible)the <br /> mixture temperature in the event of detection of knocking. <br /> • Load sharing between several modules in isolated operation <br /> • Linear reduction of power output in the event of excessive mixture temperature and ignition failures <br /> • Interface relays as per the interface list <br /> • Multi-transducer, to record the following electrically measured variables of the generator: <br /> • Phase current(with slave pointer) <br /> • Neutral conductor current <br /> • Voltages Ph/Ph and Ph/N <br /> • Active power(with slave pointer) <br /> • Reactive power <br /> • Apparent power <br /> • Power factor <br /> • Frequency <br /> An additional 0-20 mA output is produced for active power, as well as a pulse output for active power <br /> demand. <br /> The following alternator supervisions are integrated with the multi-transducer(max. 8 functions <br /> simultaneous): <br /> • Overload/short-circuit[51], [50] <br /> • Over voltage [59] <br /> • Undervoltage [27] <br /> • Asymmetric voltage [64], [59N] <br /> • Unbalance current[46] <br /> • Failure Exitation [40] <br /> • Overfrequency [81>] <br /> • U nderfreq uency [81<] <br /> • Lockable <br /> operation mode selector switch positions: <br /> No operation is possible, running set will shut down; <br /> • "MANUAL" <br /> Manual operation using (start, stop) is possible, unit is not available for fully automatic operation. <br /> • "AUTOMATIC" <br /> Fully automatic operation, according to remote demand signal: <br /> • Automatic start <br /> Fully automatic operation at full load <br /> • Stop with cooling down run for 1 minute <br /> Continuous operation of auxiliaries for 5 minutes after engine shutdown <br /> • Demand switch with the positions: <br /> • Demand OFF <br /> 19.04.2011/2 TS JGS616 E22 4160V April 19 2011 Ameresco Forward LFG-WES <br /> 21/32 <br />