TT-8045 DP-GENERA ALTERNATOR MODEL 428B04, 825 KVA, 50Hz-60Hz

REFERENCE NUMBER: TT-8045 DP-GENERA ALTERNATOR MODEL 428B04, 825 KVA, 50Hz-60Hz 1. RATED CONTINUOUS 825 KVA AT 50Hz, 400V, 3 PHASE, 1500 RPM, 0.8 PF LAGGING, BASED ON CLASS H AND 40 DEG. C AMBIENT TEMPERATURE. 2. COMES WITH DROOP CT, SPACE HEATER AND DIGITAL AVR WHICH PROVIDES DIODE FAILURE DETECTION, EXCITATION LOSS. 3. DETAILED RATINGS AND SPECIFICATIONS CAN BE FOUND IN THE ATTACHED TECHNICAL DATASHEET 4. THREE-PHASE SYNCHRONOUS GENERATOR 5. DP-GENERA MODEL: 428B04 6. DATASHEET FOR 4 POLES, 50Hz @ 1500RPTN / 60Hz @ 1800RPM 7. AMBIENT TEMPERATURE: 40°C 8. TEMPERATURE RISE: 125K 9. SERVICE DUTY: CONTINUOUS 10. PHASE: 3 11. POLE: 4 12. VOLTAGE REGULATION ACCURACY +/- 0.5% 13. AVR MODEL ETC-1000 14. EXCITATION: BRUSHLESS 15. WINDING PITCH: 2 / 3 16. POWER FACTOR: 0.8 17. INSULATION CLASS: CLASS H 18. WAVEFORM: TTF 19. WAVEFORM: THF: <2% 20. ALTITUDE: ≤1000 M.A.S.L 21. SHORT CIRCUIT CURRENT CAPACITY (WITH AUX OR PMG ≥300% 22. METHOD OF COOLING: IC01 23. DIRECTION OF ROTATION (VIEWING FROM DRIVE END): CW 24. MAXIMUM OVER-SPEED: 1800 RPM 25. DEGREE OF PROTECTION: IP23 26. RADIO INTERFERENCE CLASS B GROUP 1 27. TOTAL HARMONIC CONTENT < 1.5% - AT NO LOAD ELECTRICAL AND MECHANICAL CHARACTERISTIC 28. FREQUENCY: 50 Hz 29. ROUND PER MINUTE: 1500 RPM 30. VOLTAGE (Y CONNECTION) STAR: 400 V 31. VOLTAGE (Δ CONNECTION) - DELTA: 230 V 32. RATED POWER AT CLASS H (125K) TEMPERATURE RISE: 825 KVA - 60 KW 33. EFFICIENCY AT CLASS H (P.F.=0.8): 100% 95.1, 75% 95.2, 50% 94.3 34. EFFICIENCY AT CLASS H (P.F.=1.0): 100% 95.8, 75% 95.8, 50% 95 35. REACTANCE (%) AT CLASS H 36. SHORT-CIRCUIT RATIO: 0.38 KCC 37. DIRECT AXIS SYNCHRONOUS REACTANCE UNSATURATED: 2.5758 XD 38. QUADRATURE AXIS SYNCHRONOUS REACTANCE UNSATURATED: 1.5596 XQ 39. DIRECT AXIS TRANSIENT REACTANCE SATURATED: 0.1727 X'D 40. DIRECT AXIS SUBTRANSIENT REACTANCE SATURATED: 0.1284 X"D 41. QUADRATURE AXIS SUBTRANSIENT REACTANCE SATURATED: 0.1474 X”Q 42. ZERO SEQUEUCE REACTANCE UNSATURATED: 0.0235 X0 43. LEAKAGE REACTANCE: 0.0886 XL 44. NEGATIVE SEQUENCE REACTANCE SATURATED: 0.1374 X2 45. OPEN CIRCUIT TIME CONSTANT (SEC.): 2.473 T’DO 46. SHORT-CIRCUIT TRANSIENT TIME CONSTANT (SEC.): 0.1220 T'D 47. SUBTRANSIENT TIME CONSTANT (SEC.): 0.0090 T”D 48. ARMATURE TIME CONSTANT (SEC.): 0.0304 TA 49. NO LOAD EXCITATION CURRENT: 0.7 IO(A) 50. FULL LOAD EXCITATION CURRENT: 1.9 IC(A) 51. FULL LOAD EXCITATION VOLTAGE: 44 UC(V) 52. STATOR WINDING RESISTANCE (20°C): 0.002814 OHM 53. ROTOR WINDING RESISTANCE (20°C): 1.462 OHM 54. EXCITER STATOR RESISTANCE (20°C): 19.96 OHM 55. EXCITER ROTOR PHASE RESISTANCE: 0.04177 OHM 56. COOLING AIR REQUIREMENT: 1.51 M3/SEC 57. CONFIGURATION: SINGLE BEARING 58. TYPE OF CONSTRUCTION: B2 - SAE 59. INERTIA (J) [KGM2]: 19.8 60. TOTAL WEIGHT: 1899 61. DRIVE END BEARING / LUBRICATION: NOT SUPPLY 62. NON-DRIVE END BEARING / LUBRICATION: 6321 C3-2Z / PRELUBRICATED - SEALED FOR LIFE 63. VOLTAGE RECOVERY TIME SEC.: 1.0 64. STATOR WINDING: DOUBLE LAYER CONCENTRIC 65. NUMBER OF TERMINAL: 6 66. ROTOR: WITH DAMPING CAGE 67. OVERLOAD: 110% RATED LOAD FOR 1 HOUR QUANTITY: 1 UNIT