Description
ĐẦU PHÁT LEROY SOMER LSA 52.3
Leroy somer performance:
Leroy Somer LSA 52.3 alternator has been designed to offer you the best power generation performances. With its meticulous design and optimized architecture, the LSA 52.3 strikes the perfect balance between compactness, reliability, performance and longevity. Whatever your application, the LSA 52.3 will meet your needs and will adapt to all situations.
Standards:
Nidec Leroy somer LSA 52.3 alternator meets all key international standards and regulations, including IEC 60034,
NEMA MG 1.32-33, ISO 8528-3, CSA C22.2 n°100-14 and UL 1446 (UL 1004 on request). Also compliant with IEC 61000-6-2, IEC 61000-6-3, IEC 61000-6-4, VDE 0875G, VDE 0875N and EN 55011, group 1 class A for European zone.
Nidec Leroy Somer LSA 52.3 alternator can be integrated in EC marked generator set, and bears EC, EAC and CMIM markings. It is designed, manufactured and marketed in an ISO 9001 and ISO 14001 quality assurance environment.
Electrical characteristics and performances:
● Class H insulation
● 2/3 pitch winding, standard 6-wire (6S)
● Voltage range:
– 50 Hz: 380V – 400V – 415V
– 60 Hz: 440V – 480V
● High efficiency and motor starting capacity
● Other voltages are possible with optional adapted windings:
– 50 Hz: 440V (no. 7), 500V (no. 9), 600V (no. 23), 690V (no. 52)
– 60 Hz: 380V and 416V (no. 8), 600V (no. 9), 690V (no. 22)
Excitation and regulation system:
| Excitation system | Regulation options | ||||
| AVR | AREP + PMI | PMG | C.T.
Current transformer for paralleling |
Mains paralleling | Remote voltage potentiometer |
| D550 | Standard | Option | √ | √ | √ |
*3-phase sensing is included as a standard with digital regulators.
Protection system and options:
- The LSA 52.3 is IP 23
- Complete winding protection for clean environments with relative humidity ≤ 95 %, including indoor marine environments
- Options:
- Filters on air inlet (derating 5%)
- Filters on air inlet and air outlet (IP 44) (derating 8%)
- Reinforced winding protection for harsh environments and relative humidity greater than 95% (derating 6%)
- Space heater
- Protection or metering CTs
– Thermal protection for stator winding and/or bearings (PT100)
Mechanical construction:
● Compact and rigid assembly to better withstand generator vibrations
● Steel frame
● Cast iron flanges and shields
● Two-bearing and single-bearing versions designed to be suitable for engines on the market
● Half-key balancing
● Regreasable bearings
● Clockwise rotation in standard
Terminal box design:
● Easy access to the voltage regulator and to the connections
● Possible inclusion of accessories for paralleling, protection and measurement
General characteristics:
| Insulation class | H | Excitation system | AREP + PMI | |
| Winding pitch | 2/3 (wind. 6S) | AVR type | D550 | |
| Number of wires | 6 | Voltage regulation (*) | ± 0.25% | |
| Protection | IP 23 | Short-circuit current | 300% (3 IN) : 10s | |
| Altitude | ≤ 1000 m | Total Harmonic Distortion THD (**) in no-load | < 4% | |
| Overspeed | 2250 R.P.M. | Waveform: NEMA = TIF (**) | < 50 | |
| Air flow | 2.5 m3/s (50 Hz) – 2.8 m3/s (60 Hz) | Waveform: I.E.C. = THF (**) | < 2% | |
| ady state (**) between phases | ||||
| Power | 1860 – 2750 kVA* |
| Voltage | 380 – 690 V |
| Poles | 4 |
| Speed | 1500 – 1800 rpm |
| Shaft height | 450 mm |
| Max efficiency | 96.7 % |
| Excitation | AREP |
| Regulation | D550 |
* kVA/50Hz – kW/60Hz (Discrepancies may occur, consult catalogue for exact figures)
| Insulation class | H |
| Winding pitch | 2/3 (n° 6S) |
| Number of wires | 6 |
| Protection | IP 23 |
| Altitude | ≤ 1000 m |
| Overspeed | 2250 rpm |
| Air flow | 2.5 m3/s (50 Hz) – 2.8 m3/s (60 Hz) |
| Excitation system / AVR type | AREP + PMI / D550 |
| Voltage regulation (Steady state) | ± 0,25% |
| Short-circuit current (3 IN / 10 s) | 300 % (3 IN) : 10s |
Regulators:
| Regulators | D550 | R449 |
| Mains Paralleling | ● | – |
| 3-phase sensing | ● | – |
| Advanced settings | ● | – |
| Data logging & monitoring | ● | – |
| Remote communication | ● | – |
| Remote voltage potentiometer | ○ | ○ |
| CT for mains paralleling | ○ | ○ |
| R791 RFI suppression kit (standard in Europe) | ○ | ○ |
● : Included ○ : Option – : Not available
Flex plate / Flange:
| Flex plate / Flange | 0 | 00 |
| 21 | – | ● |
| 18 | ● | ● |






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