- Technical Data Sheet
SPECIFICATIONS & OPTIONS STANDARDS Newage Stamford industrial generators meet the requirements of BS EN 60034 and the relevant section of other international standards such as BS5000, VDE 0530, NEMA MG-32, IEC34, CSA C22.2-00, AS359. Other standards and certifications can be considered on request. TERMINALS & TERMINAL BOX Standard generators feature a main stator with 6 ends brought out to the terminals, which are mounted on the frame at the non-drive end of the generator. A sheet steel terminal box contains the AVR and provides ample space for the customers' wiring and gland arrangements. It has removable panels for easy access. VOLTAGE REGULATORS MX32 AVR - STANDARD This sophisticated Automatic Voltage Regulator (AVR) is incorporated into the Stamford Permanent Magnet Generator (PMG) system and is fitted as standard to generators of this type. The PMG provides power via the AVR to the main exciter, giving a source of constant excitation power independent of generator output. The main exciter output is then fed to the main rotor, through a full wave bridge, protected by a surge suppressor. The AVR has in-built protection against sustained overexcitation, caused by internal or external faults. This de-excites the machine after a minimum of 5 seconds. Over voltage protection is built-in and short circuit current level adjustments is an optional facility. WINDINGS & ELECTRICAL PERFORMANCE All generator stators are wound to 2/3 pitch. This eliminates triplen (3rd, 9th, 5th ) harmonics on the voltage waveform and is found to be the optimum design for trouble-free supply of non-linear loads. The 2/3 pitch design avoids excessive neutral currents sometimes seen with higher winding pitches, when in parallel with the mains. A fully connected damper winding reduces oscillations during paralleling. This winding, with the 2/3 pitch and carefully selected pole and tooth designs, ensures very low waveform distortion. SHAFT & KEYS All generator rotors are dynamically balanced to better than BS686:Part Grade 2.5 for minimum vibration in operation. Two bearing generators are balanced with a half key. INSULATION/IMPREGNATION The insulation system is class 'H'. All wound components are impregnated with materials and processes designed specifically to provide the high build required for static windings and the high mechanical strength required for rotating components. QUALITY ASSURANCE Generators are manufactured using production procedures having a quality assurance level to BS EN ISO 900. The stated voltage regulation may not be maintained in the presence of certain radio transmitted signals. Any change in performance will fall within the limits of Criteria 'B' of EN 6000-6-2:200. At no time will the steady-state voltage regulation exceed 2%. NB Continuous development of our products entitles us to change specification details without notice, therefore they must not be regarded as binding. Front cover drawing typical of product range. 2
WINDING 32 CONTROL SYSTEM AVR SEPERATELY EXCITED ( PMG) MX32 VOLTAGE REGULATION + /- 0.5 % WITH 4% ENGINE GOVERNING. SUSTAINED SHORT CIRCUIT REF TO SHORT CIRCUIT CURVES MX 32 IS STANDARD AVR INSUALTION SYSTETM PROTECTION RATED POWER FACTOR STATOR WINDING WINDING PITCH WINDING LEADS STATOR Wdg RESIS (L-L) @ 22 Deg C ROTOR WINDING RESIS AT 22 DEG C R.F.I SUPPRESSION WAVE FORM DISTORTION MAXIMUM OVER SPEED OVER LOAD BEARING DRIVE END BEARING NON-DRIVE END WEIGHT COMP.GENERATOR WEIGHT WOUND ROTOR WEIGHT WOUND STATOR WR2 INERTIA. 0.003 Ohms (L-L) at 22 deg c, Star Connected.08 Ohms at 22 deg c BS EN 6000-6-2 & BS EN 6000-6-4, VDE 0875N, Refer to factory for others. NO LOAD <.8 % NON DISTORTING BALANCED LINEAR LOAD < 5 % 2250 Rev / min 0% OVER LOAD FOR HOUR ONCE EVERY 2 HOURS BALL 6224-2RS ( ISO) BALL 637-2RS ( ISO) BEARING 2274 883 082 20.45 CLASS H IP23 STANDARD DOUBLE LAYER CONCENTRIC TWO THIRD 6 50 HZ 60 HZ TELEPHONE INTEFERENCE COOLING AIR M3/ SEC THF < 2 %.64 TIF < 50. VOLTAGE SERIES STAR(Y) 380/220 400/23 45/240 440/254 46/240 440/254 460/266 480/277 VOLTAGE DELTA 220 230 240 254 240 254 266 277 KVA BASE RATING FOR REACTANCE VALUES 800 80 800 800 875 5 3 000 Xd DIR AXIS SYNCHRONOUS 2.4 2.68 2.460 2.9 3.22 3.04 2.90 2.764 X'd DIR AXIS TRANSIENT 0.7 0. 0.098 0.09 0.3 0.2 0.2 0. X"d DIR AXIS SUB TRANSIENT 0.0 0.09 0.080 0.07 0. 0.0 0.09 0.090 Xq QUAD AXIS REACTANCE.8.73.590.4 2.07..86.777 X"q QUAD AXIS SUBTRANSIENT 0.23 0.20 0.79 0.6 0.23 0.22 0.2 0.20 XL LEAKAGE REACTANCE 0.02 0.0 0.00 0.0 0.06 0.06 0.05 0.052 X2 NEGATIVE SEQUENCE 0.43 0.3 0.20 0. 0.6 0.5 0.4 0.35 X0 ZERO SEQUENCE 0.02 0.0 0.00 0.0 0.0 0.0 0.0 0.0 REACTANCES ARE SATURATED VALUES ARE PER UNIT AT RATINGS AND VOLTAGE INDICATED T'd TRANSIENT TIME CONSTANT T"d SUBTRANSIENT TIME CONSTANT T' Do O.C FIELD TIME COONSTANT Ta ARMATURE TIME CONSTANT SHORT CIRCUIT RATIO 0.045 0.05 3.7 0.026 / Xd All ratings are industrial, 3 phased based on 40 deg c ambient temperature and 000 m altitude Continious development of our products entitles us to change specification details without notice
50 380 V Winding 3/ 32 THREE PHASE EFFICIENCY CURVES 0.2 0.3 0.4 0.5 0.6 0.7. 800 KVA 400 V 0.2 0.3 0.4 0.5 0.6 0.7. 80 KVA 45 V 0.2 0.3 0.4 0.5 0.6 0.7. 800 KVA 440 V 9 0 0.2 0.4 0.6.2 800 KVA
60 Winding 3/ 32 46 V THREE PHASE EFFICIENCY CURVES 0.2 0.3 0.4 0.5 0.6 0.7. 875 KVA 440 V 0.2 0.3 0.4 0.5 0.6 0.7. 460 V 480 V 0.2 0.3 0.4 0.5 0.6 0.7. 9 0 0.2 0.4 0.6.2 5 KVA 3 KVA 000 KVA
30 50 Winding 3/32 Locked Rotor Motor Starting Curve 380 400 45 440 PERCENTAGE TRANSIENT VOLTAGE DIP 25 20 5 0 5 0 0 500 000 500 2000 2500 LOCKED ROTOR kva 30 60 46 440 460 480 PERCENTAGE TRANSIENT VOLTAGE DIP 25 20 5 0 5 0 0 500 000 500 2000 2500 3000 3500 LOCKED ROTOR kva
50 Three-phase Short Circuit Decrement Curve. No-load Excitation at Rated Speed Based on star (wye) connection. 00000 CURRENT (Amps) 0000 SYMMETRICAL ASYMMETRICAL 000 0.00 0.0 0. 0 TIME (secs) Sustained Short Circuit = 2,900 Amps 60 00000 CURRENT (Amps) 0000 SYMMETRICAL ASYMMETRICAL 000 0.00 0.0 0. 0 TIME (secs) Sustained Short Circuit = 3,500 Amps Note Note 2 The following multiplication factors should be The following multiplication factor should be used to convert the used to adjust the values from curve between values calculated in accordance with NOTE to those applicable to time 0.00 seconds and the minimum current the various types of short circuit : point in respect of nominal operating voltage : 50 60 3-phase 2-phase L-L -phase L-N Voltage Factor Voltage Factor Instantaneous x.00 x 7 x.30 380v X.00 46v x.00 Minimum x.00 x.80 x 3.20 400v X.07 440v x.06 Sustained x.00 x.50 x 2.50 45v X.2 460v x.2 Max. sustained duration 0 sec. 5 sec. 2 sec. 440v X.8 480v x.7 All other times are unchanged The sustained current value is constant irrespective of Note 3 voltage level Curves are drawn for Star (Wye) connected machines. For Delta connection multiply the Curve current value by.732 7
Winding 3 /32 Power Factor RATINGS Class - Temp Rise Cont. F - 05/40 C Cont. H - 25/40 C Standby - 50/40 C Standby - 63/27 C 50 Star (V) 380 400 45 440 380 400 45 440 380 400 45 440 380 400 45 440 Delta (V) 220 230 240 254 220 230 240 254 220 230 240 254 220 230 240 254 kva 750 760 750 750 800 80 800 800 820 830 820 820 850 860 850 850 kw 600 608 600 600 640 648 640 640 656 664 656 656 680 688 680 680 Efficiency (%).5.6.8.0.3.3.6.9.2.3.7.9.2.3.7.9 kw Input 635 643 633 632 679 687 677 675 6 704 6 69 722 730 78 77 60 Star (V) 46 440 460 480 46 440 460 480 46 440 460 480 46 440 460 480 Delta (V) 240 254 266 277 240 254 266 277 240 254 266 277 240 254 266 277 kva 83 844 888 93 875 5 3 000 93 050 050 050 000 00 00 00 kw 650 675 70 730 700 740 770 800 730 840 840 840 800 880 880 880 Efficiency (%).3.4.7.8.0..3.6.0.9.0.5.0.9.0.5 kw Input 690 75 750 770 745 787 87 846 777 8 8 889 852 7 6 DIMENSIONS SAE AN 4 8 25.4 5.87 TD_.IND_7.4.07_0