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n <br />0 <br />G <br />LI <br />r <br />C <br />II <br />Control functions: <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 />• Underfrequency [81 <] <br />• Lockable 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 />