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Leroy Somer R450T AVR

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Genuine Leroy Somer R450T automatic voltage regulator (AVR) for the LSA series of industrial alternators provides excitation current up to 6A with excellent reliability for SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types.

R450T is 3 Phase Sensing with Mate-N-Lock connectors.
Use R450M for 1 Phase Sensing.

Designed to fit LSA40 to LSA50.2 and TAL46 to TAL49 alternators with SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types.

These are new and GENUINE LEROY SOMER AVRs direct from the factory.

Details

The R450T includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. The R450T is also equipped with a Load Acceptance Module (LAM) to handle load impact events. 

 

KEY SPECIFICATIONS

 Technology Analog
 Excitation modeSHUNT, AREP, PMG
 Rated excitation current6 A
 Regulation accuracy (+/- %)0.5 %
 Frequency range10 – 100 Hz
 Voltage setting range (+/- %)5 %
 kU/F limitationK = 1&2
 Loss of sensing voltage✓
 Over-excitation limitation✓
 Short circuit current limitation✓
 Voltage droop✓
 Parallel operation between alternators✓
 Load Acceptance Module (LAM)✓

Compatible products

  • LSA 40
  • LSA 42.3
  • LSA 44.3
  • LSA 46.3 *
  • LSA 47.2
  • LSA 49.3 *
  • LSA 50.2
  • TAL 46 *
  • TAL 47
  • TAL 49 * (for 12 lead option)

* : use R450M or T with Mate-N-Lock connectors

VARIANTS

  • R450M with Mate-N-Lok connectors - 1 Phase sensing
  • R450T with Mate-N-Lok connectors - 3 Phase sensing

OPTIONS

  • Use R726 module for Power factor regulation (PF)
  • Use R729 for PF + kVAr regulation and 4-20 mA signal treatment
  • External potentiometer
     
Related Downloads
Leroy Somer R450T AVR Manual - Macfarlane Generators (1.59MB)