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Automatic Voltage Regulator - AVR

We stock a large range of AVRs for Marrelli, Cummins (Stamford Newage), Leroy Somer, Mecc Alte, and AVK. All Standard AVRs are held in stock or available on a next day service.

Stamford Automatic Voltage Regulators

MX321 AUTOMATIC VOLTAGE REGULATOR

MX321 AUTOMATIC VOLTAGE REGULATOR The MX321 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system.

MX321 Datasheet

MX341 AUTOMATIC VOLTAGE REGULATOR

MX341 AUTOMATIC VOLTAGE REGULATOR The MX341 is a two phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system.

MX341 Datasheet

AS440 AUTOMATIC VOLTAGE REGULATOR

AS440 AUTOMATIC VOLTAGE REGULATOR The SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

AS440 Datasheet

SX421 AUTOMATIC VOLTAGE REGULATOR

SX421 AUTOMATIC VOLTAGE REGULATOR The SX421 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes a number of other useful features. Excitation power is derived directly from the generator terminals.

SX421 Datasheet

SX440 AUTOMATIC VOLTAGE REGULATOR

SX440 AUTOMATIC VOLTAGE REGULATOR The SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

SX440 Datasheet

SX460 AUTOMATIC VOLTAGE REGULATOR

SX460 AUTOMATIC VOLTAGE REGULATOR SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

SX460 Datasheet

Leroy Somer Automatic Voltage Regulators

R129 AUTOMATIC VOLTAGE REGULATOR

R129 AUTOMATIC VOLTAGE REGULATOR The PC board with electronic components is located inside an insulating plastic box and embeded in elastomere resin. Terminals consist in 1/4" "Faston" lugs. For connections and adjustments are: - main terminal strip J1 (10 marked terminal) - terminal strip J2 (2 marked terminal) - potentiometer (screw) droop: P1 - potentiometer (screw) voltage: P2 - potentiometer (screw) frequency: P3 - potentiometer (screw) stability: P4 - potentiometer (screw) excitation ceiling: P5 - potentiometer (screw) internal voltage droop: P6

R129 Datasheet

Marelli Automatic Voltage Regulators

M16FA655A AUTOMATIC VOLTAGE REGULATOR

M16FA655A AUTOMATIC VOLTAGE REGULATOR The voltage regulator type "MARK V", is suitable for Synchronous Generators of MARELLI MOTORI make, MJB series, size range 160-250 frames. The regulator is fully insulated in order to maintain high reliability also with severe ambient conditions (high level of humidity, dust, salt atmosphere), and in case of high vibrations level. The regulator is suitable both for single and 3-phase generators.

M16FA655A Datasheet

M40FA644A AUTOMATIC VOLTAGE REGULATOR

M40FA644A AUTOMATIC VOLTAGE REGULATOR The voltage regulator type "MARK X", is suitable for Synchronous Generators of MARELLI MOTORI make, MJB series, size range 225-500 frames. This regulator is suitable to operate on machines using PMG generator. The regulator is fully insulated in order to maintain high reliability also with severe ambient conditions (high level of humidity, dust, salt atmosphere), and in case of high vibrations level. The regulator is suitable both for single and 3-phase operation.

M40FA644A Datasheet