ALTERNATOR TECHNICAL DESCRIPTION LSA 53.2 XL3 / 4p LS Reference: 3_66 Date: 426 V4.5G 9/26 Chargé d'affaire : Karthikeyan GN Moteurs LeroySomer +33 ()2 38 6 42 xx Electric Power Generation Orleans prenom.nom@leroysomer.com rue de la Burelle 458 Saint Jean de Braye France Unknown Main data EXT C Generator type: LSA 53.2 XL3 / 4p Power: 3 kva 2 4 kwe 2 483 kwm Voltage: 66 V Star serial Rated voltage range: +5/5% Power factor Lagging:,8 Frequency: 5 Hz Speed: 5 rpm Nominal current: 262 A Winding type: p5/6 Classes (Insulation / Temperature Rise): H / F Ambient Temperature: 4 C Altitude: m Installation Quantity Prime mover: Reciprocating engine Manufacturer: Type: Duty: Base Rating Mechanical Construction IM Type of construction: Two bearing Mounting arrangement: Horizontal Axis Direction of rotation: Clockwise (seen when facing the drive end D) Bearing type: Antifriction Bearing Lubrication: Regreasable Bearing insulation: Not insulated Shaft end type: Cylindrical with keyway Balancing Class (ISO 94/): Half key G2,5 (std) Flange: None / without Shaft height: 5 mm Width: 5 mm Additional specificities Stabilized Runaway speed: rpm 2 min. Cooling Method IC Degree of protection: IP23 Coolant: Air / Temperature: 4 C Air quality: Clean Ventilation (internal): Selfventilated Filters: Without Ducting for air inlet: No Ducting for air outlet: No 3_66 rev. Page / 7
ALTERNATOR TECHNICAL DESCRIPTION LSA 53.2 XL3 / 4p LS Reference: 3_66 Date: 426 V4.5G 9/26 Chargé d'affaire : Karthikeyan GN Connection, Excitation & Regulation Parallel operation: Between alternators (F) Excitation: Selfexcited Brushless Type: AREP + PMI Sustained 3phase Isc: > 3 x FLC for s. AVR type: D5C Digital AVR location: In terminal box Alternator Voltage sensing: Terminal box mounted voltage sensing VTs Additional features: Threephase sensing Terminal box Power connection: 6 connectors (3 neutrals brought out) Main Terminal box location: On Top Line side outlet: Refer to comments Gland plate: Non magnetic Comments: 3 Phase cable on RHS & 3 neutral cables on LHS from NDE side Protection and measurement accessories Temperature detection Stator windings: 6 x 3wire Pt RTDs Combined guide and thust bearing: x 3wire Pt RTD Guide bearing: x 3wire Pt RTD Anticondensation heating Voltage: 23 V Ph / Power: 5 W Various items Paint: PE Primary RAL 732 Documentation: PDF manual Documentation Language: English Controls QUAL/INES/6 Measurement of winding resistance QUAL/INES/6 2 Insulation check on sensors (when fitted) QUAL/INES/6 2 Voltage balance and phase order check QUAL/INES/6 7 Overspeed test (according to test bench limitation) QUAL/INES/6 9 High potential test QUAL/INES/6 Insulation resistance measurement 3_66 rev. Page 2 / 7
ALTERNATOR ELECTRICAL DATA LSA 53.2 XL3 / 4P LS Reference: 3_66 C V4.5G 9/26 Main data: Power: 3 kva 2 4 kwe 2 483 kwm Voltage: 66 V Frequency: 5 Hz Rated voltage range: +5% / 5% Speed: 5 rpm Power factor Lagging:,8 Nominal current: 262 A Phases 3 Insulation / Temperature rise: H / F Connexion Star serial Cooling: IC Winding type: p5/6 Winding : 6 Wires Ambient Temperature: 4 C Altitude: m Overspeed (rpm) 8 Duty: Base Rating Total Harmonic Distortion (THD) < 5% Efficiency ( Base 3 kva ) IEC 25% 5% 75% % % Power factor Lagging:,8 94,3 96,3 96,7 96,7 96,6 Power factor Lagging: 94,7 96,8 97,4 97,5 97,5 Reactances (%) ( Base 3 kva ) Unsaturated Saturated Unsaturated Saturated Direct axis Quadrature axis Synchronous reactance Xd 25 26 Xq 28 Transient reactance X'd 25,7 2,9 X'q 28 Subtransient reactance X"d 3,9,8 X''q 4,6 2,4 Negative sequence reactance X2 4,3 2, X 9,8 Zero sequence reactance Xl 7, Stator leakage reactance Xr 2,4 Rotor leakage reactance Kcc,46 Shortcircuit ratio Time constants (s) Direct axis Quadrature axis Open circuit transient time constant T'do 3,28 T'qo NA Shortcircuit transient time constant T'd,337 T'q NA Open circuit subtransient time constant T''do,37 T''qo,57 Subtransient time constant T"d,2 T"q,8 Ta,4 Armature time constant Resistances (%) Ra, Armature resistance R 3,3 Zero sequence resistance X/R,7 X/R ratio (without unit) R2 2,9 Negative sequence resistance Voltage accuracy:,25% Maximum inrush current for a voltage dip of 5%: 2285 kva when starting an AC motor having a starting power factor between and.4 According to: I.E.C. 634. 634.2 NEMA MG 32 Products and materials shown in this catalogue may, at any time, be modified in order to follow the latest technological developments, improve the design or change conditions of utilization 826 3_66 rev. Page 3 / 7
Efficiency Rendement en % ALTERNATOR MAIN CURVES LSA 53.2 XL3 / 4P LS Reference: 3_66 Date : 826 3kVA 66V 5 Hz V4.5G 9/26 Capability Curve Umax + 5% 6 93 V Un 6 6 V Umin 5% 6 27 V PF,7 PF,8 PF,9 PF.95 kwe / rated kva PF.95 PF,9 PF,8.8 PF,7 PF,6,8 PF,6 PF,5,6 PF,5 PF,4,4 PF,4 PF,3 PF,3 PF,2,2 PF,2 PF, PF,,8,6,4,2,2,4,6,8 kvar / rated kva Efficiency Curves According to: IEC 98, 97,5 PF PF,8 97,4 97,5 97,5 97, 96,8 96,5 96, 96,3 96,7 96,7 96,6 95,5 95, 94,7 94,5 94,3 94,,25,5,75,25 Load (% of rated kwe) Charge (% kwe nominaux) 3_66 rev. Page 4 / 7
short circuit at generator terminals short circuit at generator terminals court circuit aux bornes de l'alternateur ALTERNATOR MAIN CURVES LSA 53.2 XL3 / 4P LS Reference: 3_66 Date : 826 3kVA 66V 5 Hz V4.5G 9/26 Stator Current decrement curves Symmetrical phase to neutral shortcircuit initial 2 32 A 8,8 x In Symmetrical two phase shortcircuit max 87 A 7, x In In = 262 A Symmetrical three phase shortcircuit value 2 6 A 8,2 x In Thermal Limit Isc ( Short circuit current per rated current courant de court circuit / In ) 2 Symetrical Phase to neutral short circuit Symetrical two phase short circuit Symetrical three phase short circuit Thermal limit curve 8 6 4 2,,, Time Temps (second.) Asymmetrical three phase shortcircuit IP 5 94 A 9,8 x In Isc ( Short circuit current per rated current courant de court circuit / In ) 25 2 Symetrical three phase short circuit (rms) Asymetrical three phase short circuit (peak) Thermal limit curve 5 5,,, Time Temps (second.) 3_66 rev. Page 5 / 7
Voltage rise Surtension (% of rated voltage) Voltage dip Chute de Tension (% of rated voltage) ALTERNATOR MAIN CURVES LSA 53.2 XL3 / 4P LS Reference: 3_66 Date : 826 3kVA 66V 5 Hz V4.5G 9/26 Transient Voltage Variation Transient voltage dip curve versus load impact % 5% % 5% 2% 25% 3% 35% 4% 45% Load inrush Appel de charge per rated kva,5,5 2 2,5 PF = PF =,6 PF =,8 Transient voltage rise curve versus load rejection 5% kva shedding at P.F. Delestage de charge per rated kva 45% 4% 35% 3% 25% 2% 5% % 5% %,5,5 2 2,5 PF =,8 3_66 rev. Page 6 / 7
ALTERNATOR MAIN CURVES LSA 53.2 XL3 / 4P LS Reference: 3_66 Date : 826 3kVA 66V 5 Hz V4.5G 9/26 Thermal Damage Curve 3 Stator current (per rated current) 2,5 2,5 Maximum duration durée maximum (second.) Unbalance Load Curve Stator Earth Fault Current 3 Negative phase sequence Current courant inverse (per rated current) 75 Fault Current Courant de défaut (A) C : Extensive damage B : Considerable damage A : Acceptable damage 2 5 C 25 B A Maximum duration of fault durée max. du defaut (second.) 2 3 4 5 6 7 8 9 2 Maximum duration of fault durée max. du defaut (second.) 3_66 rev. Page 7 / 7