Transcription of FOR SHUNT, AREP or PMG ALTERNATORS - Leroy …
1 R450 AVRFOR shunt , arep or PMG ALTERNATORS R450 is an analog AVR. It is designed for ALTERNATORS with a shunt , arep or PMG controls the excitation current in order to maintain the output voltage of the alternator. R450 is performant in terms of voltage regulation, simple to set , to use and is reliable. Rotating switch for U/F, LAM, excitation type and voltage sensing are is in compliance with 60034-1 standard and 508 / RANGELSA 4042,344,346,347, 249,350,251,25 3 ,154 shunt ---------- arep ------PMG------ Voltage regulation : %. Under-speed protection by function : 1) U/F (LAM : OFF). (2) U/F (LAM : MODE1).
2 Auto-adaptating LAM + 2 U/F (LAM : MODE 2). Nominal excitation current : 6A. Maximum excitation current : 10A during 10 s. Supply range 150V (50Hz/60Hz). Voltage d tection : 530 V. Protection : fuse fast 10A. Protection on load, short-circuit and voltage reference mode : Standalone DATASHEE TANALOG AVR R450 - REF. R 450 VOIR NOTICESEE NOTICEVOLT. STAB. I EXC / FUSES S250 Hz60 HzEXT FREQSETTING7 LAMOFFLAMONONLY OFF65 HzLAMOFFLAMMODE 2 LAMMODE 1 LAMOFFLAMMODE 2 LAMMODE 1 PHASE SENSING3 PHASES SENSING2301 RAPIDEFASTRAPIDEFASTNORMALNORMALNORMALNO RMALSHUNT / AREPPMG2301098765432103210321 LEDS USCI nstallation & maintenance manual 380V 220 110 0V E- E+ Z2 X1 Z1 X2 Settings are done through the AVR.
3 Potentiometer P1 : voltage setting. Potentiometer P2 : stability setting. Potentiometer P3 : excitation. Rotating switch selection 1 : frequency, U/F function, LAM function. Rotating switch selection 2 : alternator type and voltage sensing (1 ph. ou 3 ph.). Rotating switch selection 3 : excitation type ( arep or PMG) and time response. Potentiometer P4 : quadrature FEATURECONNEXION AND SETTINGU/F FONCTION Operating temperature range : - 40 C to + 65 C. Storage temperature range : - 55 C to + 85 C. Hygrometry : 98%. Maximum choc : 9 g on 3 axis. Vibrations : less than 10 Hz , 2 mm peak magnitude.
4 From 10 Hz to 100 Hz : 100 mm/s, below 100 Hz : 8g. Optional modules compatible : R731 : three phase voltage sensing. R734 : 3-phase current and voltage sensing for parallel operation R726 : regulation system changed to 4 - function .OPERATION CONDITIONSLAM FONCTION4 holes 6,5 mm200 mm175 mm140 mm115 m mVoltageP1 QuaddroopP4 StabilityP2 ExcitationP3 OverrunindicationsRotating switch- Lam and U/F- Voltage- ExcitationFuses 10A Nidec 2017. The information contained in this brochure is for guidance only and does not form part of any contract. The accuracy cannot be guaranteed as Nidec have an ongoing process of development and reserve the right to change the specification of their products without %50 Hz60 HzHz50 Hz48 Hz57 Hz60 HzVoltageKnee Knee U/UNFrequency01 s 2 s 3 sLAM0,90,8fN01 s 2 s 3 sUN00,90,8(U/f)1 s 2 s 3 sVariation in the load Load on the shaft (kW)Load shedding due to LAMMax.
5 Speed dropwith LAMwithout LAMwith LAMTimeTimeTimewithout LAMT ransient voltage dropR450
