R450

The R450 automatic voltage regulator (AVR) for the LSA series of industrial alternators provides excitation current up to 6 A with excellent reliability for SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types. 

The R450 includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. The R450 is also equipped with a Load Acceptance Module (LAM) to handle load impact events. 

 

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
• External potentiometer