Nidec Leroy-Somer R450 M Installation And Maintenance Manual

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Nidec Leroy-Somer R450 M Installation And Maintenance Manual Manual pdf 6 page image

2019.03 / kElectric Power Generation6Installation and maintenanceR450M&T AVR4342 en -2.2 - PMG excitation systemWith PMG excitation, a permanent magnetgenerator (PMG) added to the alternatorsupplies the AVR with voltage which isindependent of the main alternator winding.These two excitation principles provide themachine with a short-circuit current overloadcapacity of 3 IN for 10 s.The AVR monitors the alternator outputvoltage by adjusting the excitation current.The rotating switch should be in the PMGposition (see 3.2.3).R450 TVOIR NOTICESEE NOTICEU V WDETECT. 3 PH3 PH. SENSINGVOLT. STAB. I EXCSTAT.FUSIBLES / FUSESF- X2 Z1F+ Z2 X11kS1 S250 Hz60 HzEXT FREQSETTINGSHUNT / AREPPMGLEDSUSCPMG SYSTEMPMGT1 T2 T3T4 T5 T6Varistor5+ 6-141415151616T7 T8 T9T10 T11 T12P1P2P3P4FieldArmatureSTATOR : 6 wires ( T1 à T6)STATOR : 12 wires ( T1 à T12)VoltageStabilityExcitationQuaddroopMAIN FIELD7LAMOFFLAMONONLY FORSPECIALCONFIG.KNEELAM OFF65HzLAMOFFLAMMODE 2LAMMODE 1LAMOFFLAMMODE 2LAMMODE 150HzEXT.FREQ.SET.60Hz056981234SERIES7000 / 8000SERIESLSA 49 / 50 LSA 46 / 47LSA 46 / 47LSA 49 / 507000 / 8000SERIES5000 / 6000SERIES5000 / 6000VOLTAGE 320V ~ 530VVOLTAGE 80V ~ 320V23 01RAPIDEFASTRAPIDEFASTNORMALNORMALNORMALNORMAL23 01098765432103210321SHUNT / AREPPMG(*) same connection for R450 M: W -> T3, V -> T2, nc -> T1(*)