AVR MX341 Automatic Voltage Regulator for Stamford Diesel Generator

(1 customer review)


Availability: 17 in stock

Original Option
**Genuine Alternative:** This AVR MX341 is a high-quality aftermarket replacement for the original Stamford voltage regulator.

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General description
The AVR MX341 VOLTAGE REGULATOR 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 VOLTAGE REGULATOR 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.

The AVR MX341 senses the voltage in the main generator winding and controls the power fed to the exciter stator and hence the main rotor to maintain the generator output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.


Sensing Input Voltage 190-264V ac max, 1 phase, 2 wire
 Frequency 50-60 Hz nominal
 Power Input (PMG) Voltage 140-220V ac max, 3 phase, 3 wire
 Current 3A/phase
 Frequency 100-120 Hz nominal
 Output Voltage Max 120V dc
 Current Continuous 2.7 A
Intermittent 6A for 10 secs
 Resistance 15 ohms minimum
 Regulation +/- 1%
 Thermal Drift 0.02% per Deg. C change 0.03% per Deg. C change
In AVR ambientIn AVR ambient
 Soft Staret Ramp Time 3 seconds
 Typical system response AVR response 10ms
 Filed current to 90% 80 ms
 Machine Volts to 97% 300ms
 External voltage adjustment +/-10% with 1k ohm 1 watt trimmer
 Under frequency protection Set point 95% Hz
 Slope 170% down to 30 Hz
 Unit power dissipation 12 watts maximum
 Analogue Input Maximum input +/- 5 Vdc
 Sensitivity 1v for 5% Generator Volts (adjustable)
 Input resistance 1k ohm
 Quadrature Droop Input 10 ohms burden
 Max. sensitivity: 0.22 A for Max. sensitivity: 0.07 A for
5% droop 0PF5% droop 0PF
Max. input: 0.33AMax. input: 0.33A
 Environmental Vibration 20-100 Hz,50mm/se
 100Hz – 2kHz, 3.3g
 Operating temperature -40 to +70 Deg.
 Relative Humidity 0-70 Deg.95%
 Storage temperature -55 to +80 Deg.

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1 review for AVR MX341 Automatic Voltage Regulator for Stamford Diesel Generator

    August 24, 2022
    I’m giving a 5 Stars and positive feedback to this seller for giving time to communicates to customers like me. This product works perfectly for my purpose and I’ll give you 5 stars and positive for delivery and communicating to customers. Thanks for quick delivery.
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