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R450 AVR | Leroy Somer Automatic Voltage Regulator!
The R450 AVR designed for the LSA series of industrial alternators delivers excitation current up to 6 A, ensuring robust reliability for SHUNT, permanent magnet (PMG), or AREP (auxiliary winding) excitation methods. This regulator boasts advanced safeguards like over-excitation limitation and voltage sensing loss prevention. Additionally, it incorporates voltage droop for parallel operation of gensets and integrates a Load Acceptance Module (LAM) to manage load impact events effectively.
Key specifications:
|
Technology |
Analog |
|
Excitation
mode |
SHUNT,
AREP, PMG |
|
Rated
excitation current |
6 A |
|
Regulation
accuracy (+/- %) |
0.5 % |
|
Frequency
range |
10 – 100
Hz |
|
Voltage
setting range (+/- %) |
5 % |
|
kU/F
limitation |
K =
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 46.3 (for 12 lead option)
- LSA 47.3
- LSA 49.3 (for 12 lead option)
- TAL 046 (for 12 lead option)
- TAL 0473 (for 12 lead option)
- TAL 049 (for 12 lead option)
Variants:
- R450M with Mate-N-Lok connectors
- R450T with Mate-N-Lok connectors and 3-phase sensing module
Options:
- Use R726 module for Power factor regulation (PF)
- Use R729 for PF + kVAr regulation and 4-20 mA signal treatment
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