AVR LS R450T Generator Voltage Regulator, 6 A, 3-Phase Alternator

AVR LS R450T Generator Voltage Regulator is an analog automatic voltage regulator made for industrial generator and alternator systems. It controls excitation current to help keep generator voltage stable when the electrical load changes.

The R450T is a variant of the R450 regulator. It comes with Mate-N-Lok connectors and a 3-phase sensing module. It is designed for Leroy-Somer LSA series alternators and supports SHUNT, AREP, and PMG excitation systems.

Key Features

• Rated excitation current up to 6 A
• ±0.5% voltage regulation accuracy
• 3-phase voltage sensing
• Mate-N-Lok connectors
• Supports SHUNT, AREP, and PMG excitation
• Voltage setting range of ±5%
• Frequency range from 10 to 100 Hz
• Loss of sensing voltage protection
• Over-excitation limitation
• Short-circuit current limitation
• Voltage droop for parallel generator operation
• Load Acceptance Module for load impact control

Applications

The R450T can be used in generator and alternator systems where controlled and stable voltage output is required. It is suitable for industrial power generation, standby generator systems, and other applications using compatible Leroy-Somer alternators.

Before installation, check the alternator model, wiring arrangement, excitation system, and AVR requirements to confirm compatibility.

Technical Benefits

The automatic voltage regulator adjusts excitation according to generator operating conditions. This helps the alternator maintain a more stable output voltage as the connected load changes.

The 3-phase sensing design helps the regulator monitor the generator output. Its voltage droop function can also support parallel operation between compatible alternators.

The R450T also includes protection functions for sensing loss, over-excitation, and short-circuit current. These features help provide better control during different generator operating conditions.

Industry Usage

The R450T is intended for applications using compatible industrial alternators, particularly Leroy-Somer LSA series equipment. It can be considered for:

• Industrial generator sets
• Standby power systems
• Commercial power generation
• Generator maintenance and replacement
• Industrial alternator systems
• Parallel generator installations

Performance Advantages

The R450T provides ±0.5% regulation accuracy and supports excitation current up to 6 A. Its Load Acceptance Module helps manage voltage response during load changes, while voltage droop supports generator parallel operation.

For replacement applications, always match the AVR with the generator or alternator nameplate and technical documentation. Correct compatibility is important for safe installation and proper voltage regulation.