Low Voltage alternators - 4 pole LSA 46.2

Transcription

1 Low Voltage alternators - 4 pole 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Electrical and mechanical data 379 en /h 1-8-POWER-8

2 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz SPECIALLY ADAPTED TO APPLICATIONS The alternator is designed to be suitable for typical generator applications, such as: backup, marine applications, rental, telecommunications, etc. COMPLIANT WITH INTERNATIONAL STANDARDS The alternator conforms to the main international standards and regulations: - IEC 634, NEMA MG , ISO 828-3, CSA / UL 1446 (UL 4 on request), marine regulations, etc. It can be integrated into a CE marked generator. The is designed, manufactured and marketed in an ISO 91 environment and ISO 141. TOP OF THE RANGE ELECTRICAL PERFORMANCE Class H insulation. Standard 12-wire re-connectable winding, 2/3 pitch, type no. 6. Voltage range Hz: 22 V - 24 V and 38 V - 41 V (44 V). Voltage range 6 Hz: 28 V - 24 V and 38 V - 48 V. High efficiency and motor starting capacity. Other voltages are possible with optional adapted windings: - Hz: 44 V (no. 7), V (no. 9), V (no. 22), 6 V (no. 23), 69 V (no. or 2). - 6 Hz: 38 V and 416 V (no. 8), 6 V (no. 9). R 791 interference suppression conforming to standard EN 11 group 1 class B standard for European zone (CE marking). EXCITATION AND REGULATION SYSTEM SUITED TO THE APPLICATION Excitation system Regulation options Volage regulator SHUNT AREP PMG Current transformer for paralleling Mains paralleling 3-phase sensing 3-phase sensing for mains paralleling unbalanced Remote voltage potentiometer R2 Std R4 Option Std Std C.T. R726 R731 R734 DC Option Option Option C.T. included included contact factory Voltage regulator accuracy ±.% : possible mounting PROTECTION SYSTEM SUITED TO THE ENVIRONMENT The is IP 23. Standard winding protection for clean environments with relative humidity 9 %, including indoor marine environments. Options : Filters on air inlet : derating %. Filters on air inlet and air outlet (IP 44) : derating %. Winding protections for harsh environments and relative humidity greater than 9%. Space heaters. Thermal protection for winding and shields. REINFORCED MECHANICAL STRUCTURE USING FINITE ELEMENT MODELLING Compact and rigid assembly to better withstand generator vibrations. Steel frame. Cast iron flanges and shields. Twin-bearing and single-bearing versions designed to be suitable for engines on the market. Half-key balancing. Sealed for life ball bearings, regreasable bearings (optional). ACCESSIBLE TERMINAL BOX PROPORTIONED FOR OPTIONAL EQUIPMENT Easy access to the voltage regulator and to the connections. Possible inclusion of accessories for paralleling, protection and measurement. 12-way terminal block for voltage reconnection. 2 Ref : 379 en 1-8-POWER-8

3 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz General characteristics Insulation class H Excitation system SHUNT AREP or PMG Winding pitch 2/3 (N 6) AVR type R 2 R 4 Number of wires 12 Voltage regulation (*) ±. % ±. % Protection IP 23 Short-circuit current - 3% (3 IN) : s Altitude m Totale Harmonic distortion THD (**) no load < 2.% - on load < 2.% Overspeed 22 min -1 Waveform: NEMA = TIF (**) < Air flow.43 m 3 /s (Hz) /.1 (6Hz) (*) Steady state. (**) Total harmonic distortion between phases, no-load or on-load (non-distorting) Ratings Hz - 1 R.P.M. kva / kw - P.F. =.8 Duty/T C Continuous duty/4 C Continuous duty/4 C Stand-by/4 C Stand-by/27 C Class/T K H/12 K F/ K H/1 K H/163 K Phase 3 ph. 1 ph. 3 ph. 1 ph. 3 ph. 1 ph. 3 ph. 1 ph. Y 38V 4V 41V 44V 38V 4V 41V 44V 38V 4V 41V 44V 38V 4V 41V 44V 22V 23V 24V 23V 22V 23V 24V 23V 22V 23V 24V 23V 22V 23V 24V 23V YY 22V 22V 22V 22V 46.2 kva kw M kva kw kva kw kva kw kva kw Ratings 6 Hz - 18 R.P.M. kva / kw - P.F. =.8 Duty/T C Continuous duty/4 C Continuous duty/4 C Stand-by/4 C Stand-by/27 C Class/T K H/12 K F/ K H/1 K H/163 K Phase 3 ph. 1 ph. 3 ph. 1 ph. 3 ph. 1 ph. 3 ph. 1 ph. Y 38V 416V 44V 48V 38V 416V 44V 48V 38V 416V 44V 48V 38V 416V 44V 48V 22V 24V 24V 22V 24V 24V 22V 24V 24V 22V 24V 24V YY 28V 22V 24V 28V 22V 24V 28V 22V 24V 28V 22V 24V 46.2 kva kw M kva kw kva kw kva kw kva kw Ref : 379 en POWER-8

4 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Efficiencies Hz - P.F.: 1 / P.F.: P.F. : P.F. : P.F. : P.F. : kVA M 9 : 1 P.F P.F. : kVA 9.7 P.F. : P.F. : kVA kVA P.F. : P.F. : kVA Reactances (%). Time constants (ms) - Class H / 4 V M Kcc Short-circuit ratio Xd Direct-axis synchro. reactance unsaturated Xq Quadrature-axis synchro. reactance unsaturated T do No-load transient time constant X d Direct-axis transient reactance saturated T d Short-circuit transient time constant X d Direct-axis subtransient reactance saturated T d Subtransient time constant X q Quadrature-axis subtransient reactance saturated Xo Zero sequence reactance unsaturated X2 Negative sequence reactance saturated Ta Armature time constant Other class H/4 V data io (A) No-load excitation current (SHUNT/AREP or PMG) ic (A) On-load excitation current (SHUNT/AREP or PMG) uc (V) On-load excitation voltage (SHUNT/AREP or PMG) ms Response time ( U = 2% transient) kva Start ( U = 2% cont. or % trans.) SHUNT kva Start ( U = 2% cont. or % trans.) AREP % Transient U (on-load 4/4) SHUNT - P.F.:.8 LAG % Transient U (on-load 4/4) AREP - P.F.:.8 LAG W No-load losses W Heat dissipation Ref : 379 en 1-8-POWER-8

5 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Transient voltage variation 4V - Hz Load application (SHUNT excitation) Load application (AREP or PMG excitation) 2 % M 2 % M kva kva kva at φ.8 power factor kva at φ.8 power factor Load rejection (SHUNT excitation) Load rejection (AREP or PMG excitation) 2% M 2% M % Voltage rise 2 1 % Voltage rise kva kva kva at φ.8 power factor kva at φ.8 power factor Motor starting (SHUNT excitation) Motor starting (AREP or PMG excitation) 3% M 3% M % kVA 229 kva at φ.6 power factor locked rotor kVA kva at φ.6 power factor locked rotor 1 ) For a starting P.F. other than.6, the starting kva must be multiplied by K = Sine P.F. /.8 Calculation example for a different P.F. : Starter motor kva calculated at.4 P.F. = 2 kva Sin P.F..4 =.916 K = 1.14 kva corrected = 229 kva Voltage dip corresponding to = 12 %. 2 ) For voltages other than 4V (Y), 23V ( ) at Hz, then kva must be multiplied by (4/U) 2 or (23/U) 2. Ref : 379 en 1-8-POWER-8

6 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Efficiencies 6 Hz - P.F.: 1 / P.F.: P.F. : P.F. : P.F. : P.F. : kVA M 9 P.F. : P.F. : kVA 9 P.F. : P.F. : kVA 9.7 P.F. : P.F. : kVA kVA Reactances (%). Time constants (ms) - Class H / 48 V M Kcc Short-circuit ratio Xd Direct-axis synchro. reactance unsaturated Xq Quadrature-axis synchro. reactance unsaturated T do No-load transient time constant X d Direct-axis transient reactance saturated T d Short-circuit transient time constant X d Direct-axis subtransient reactance saturated T d Subtransient time constant X q Quadrature-axis subtransient reactance saturated Xo Zero sequence reactance unsaturated X2 Negative sequence reactance saturated Ta Armature time constant Other class H/48 V data io (A) No-load excitation current (SHUNT/AREP or PMG) ic (A) On-load excitation current (SHUNT/AREP or PMG) uc (V) On-load excitation voltage (SHUNT/AREP or PMG) ms Response time ( U = 2% transient) kva Start ( U = 2% cont. or % trans.) SHUNT kva Start ( U = 2% cont. or % trans.) AREP % Transient U (on-load 4/4) SHUNT - P.F.:.8 LAG % Transient U (on-load 4/4) AREP - P.F.:.8 LAG W No-load losses W Heat dissipation Ref : 379 en 1-8-POWER-8

7 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Transient voltage variation 48V - 6 Hz Load application (SHUNT excitation) Load application (AREP or PMG excitation) 2 % 2 M 2 % 2 M kva kva kva at φ.8 power factor kva at φ.8 power factor Load rejection (SHUNT excitation) Load rejection (AREP or PMG excitation) 2% M 2% M 2 2 % Voltage rise 1 % Voltage rise kva kva at φ.8 power factor kva kva at φ.8 power factor Motor starting (SHUNT excitation) Motor starting (AREP or PMG excitation) 3% M 3% M % kva 229 kva at φ.6 power factor locked rotor kVA kva at φ.6 power factor locked rotor 1 ) or a starting P.. ot er t an.6 t e starting kv A st e ltiplied Sine.. P.8 Calculation example for a different P.F. : Starter motor kva calculated at.4 P.F. = 2 kva Sin P.F..4 =.916 K = 1.14 kva corrected = 229 kva Voltage dip corresponding to = %. 2 ) or oltages ot er t an 48V ( ) 277V ( ) 24V ( ) at 6 H t en kva st e ltiplied (48 U) 2 or (277 U) 2 or (24 U) 2. Ref : 379 en POWER-8

8 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz 3-phase short-circuit curves at no load and rated speed (star connection Y) Symmetrical Asymmetrical Current (A) AREP or PMG SHUNT 1 time (ms) M Symmetrical Asymmetrical Current (A) AREP or PMG SHUNT 1 time (ms) Symmetrical Asymmetrical Current (A) AREP or PMG SHUNT 1 time (ms) Influence due to connection Curves shown are for star (Y) connection. For other connections, use the following multiplication factors: - Series delta : current value x Parallel star : current value x 2 8 Ref : 379 en 1-8-POWER-8

9 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz 3-phase short-circuit curves at no load and rated speed (star connection Y) AREP or PMG Symmetrical Asymmetrical Current (A) SHUNT 1 time (ms) AREP or PMG Symmetrical Asymmetrical Current (A) SHUNT 1 time (ms) Influence due to short-circuit Curves are based on a three-phase short-circuit. For other types of short-circuit, use the following multiplication factors. 3-phase 2-phase L/L 1-phase L/N Instantaneous (max.) Continuous Maximum duration (AREP/PMG) sec. sec. 2 sec. Ref : 379 en POWER-8

10 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Single bearing dimensions AH 3 Xg L LB 33 A to t inal A to g lato tan a a l o tp t Optional a l o tp t Ø P 27 Ø N Ø BX Ø 2 77 PMG optional Ø 23 IA t 2 a o n on Ø M Ø AIR OUTLET 2 ol Ø 2 7 AIR INLET 23 A to otating io 7 27 IA t X E p on Ø U Dimensions (mm) and weight Coupling Type L without PMG LB Xg C Weight (kg) Flex plate 11 1/ Flange S.A.E 3 X M Flange S.A.E 2 X Flange S.A.E 1 X X Flange S.A.E 1/2 X Flange (mm) Flex plate (mm) S.A.E. P N M S R CF S.A.E. BX U X Y AH 3 7*/ */368 24*/ / */ */368 24*/ */ */368 24*/17 1/ * : dimensions M Xr Ø 7 Ø Ø 4(46.2 M) Ø 6(46.2 L) Ø 11 Lr Ø 12 Ø 11 Ø 1 Ø 7 Torsional analysis data Centre of gravity: Xr (mm), Rotor length: Lr (mm), Weight: M (kg), Moment of inertia: J (kgm 2 ): (4J = MD 2 ) Flange S.A.E. 11 1/2 Flange S.A.E. 14 Type Xr Lr M J Xr Lr M J M NOTE : Dimensions are for information only and may be subject to modifications. Contractuel 2D drawings can be downloaded from the Leroy- Somer site, 3D drawing files are available upon request. Ref : 379 en 1-8-POWER-8

11 18 to 31 kva - Hz / 228 to 381 kva - 6 Hz Two bearing dimensions 1 ol M Xg L LB A to t inal A to g lato tan a a l o tp t 68 1 Optional a l o tp t Ø P Ø Ø 7 1 Ø PMG optional Ø AIR OUTLET 6 B 14 BB 6 ol Ø 21 AIR I LET 23 A to otating io M IA t 12 E a o n on Ø 3 22 Dimensions (mm) and weight Type L without PMG LB P C BB B R Xg Weight (kg) M Xr Ø 7 Ø 8 Ø Ø 4(46.2 M) Ø 6(46.2 L) Lr Ø 11 Ø 12 Ø 11 Ø 1 Ø 7 Torsional analysis data Centre of gravity: Xr (mm), Rotor length: Lr (mm), Weight: M (kg), Moment of inertia: J (kgm 2 ): (4J = MD 2 ) Type Xr Lr M J M NOTE : Dimensions are for information only and may be subject to modifications. Contractuel 2D drawings can be downloaded from the Leroy- Somer site, 3D drawing files are available upon request. Ref : 379 en POWER-8

12 Contact en / a - This document is the property of Moteurs Leroy-Somer, it can not be reproduced in any form without prior written authorization. Moteurs Leroy-Somer reserves the right to modify the design, technical specifications and dimensions of the products shown in this document. The descriptions cannot in any way be considered contractual. Moteurs Leroy-Somer SAS - RCS ANGOULÊME - Capital de POWER-8