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Equivalent 3 Phase Voltage Regulator AVR Stamford MX321

Everlasting Parts is one of the leading manufacturers offering original and genuine equivalent 3 phase voltage regulator avr stamford mx321. Having specialized in this field for many years, we provide customers with the OEM products replacement. Welcome to wholesale quality, durable and cheap...

Everlasting Parts is one of the leading manufacturers offering original and genuine equivalent 3 phase voltage regulator avr stamford mx321. Having specialized in this field for many years, we provide customers with the OEM products replacement. Welcome to wholesale quality, durable and cheap the aftermarket products with us.

Automatic Voltage Regulator   MX321 AVR For Stamford
Sensing Input Voltage 100-264 V ac   maximum
Frequency 50-60 Hz nominal
Phase 2 or 3
Power Input Voltage 170-220V ac max,   3 phase, 3 wire
Current 3A/phase
Frequency 100-120 Hz   nominal
Output Voltage max 120V dc
Current continuous 3.7 A   (see note 1)
intermittent 6A for 10 sec.
Resistance 15 ohms minimum
Regulation +/- 0.5% RMS (see   note 2)
Thermal Drift 0.02% per deg. C   change in AVR ambient  (see note 3)
Soft Start Ramp Time 0.4 - 4 seconds
Typical system response AVR response 10ms
Filed current to 90% 80 ms
Machine Volts to 97% 300ms
External voltage adjustment ±10% with 5k ohm   1 watt trimmer (see note 4)
Under frequency protection Set point 95% Hz (see note   5)
Slope 100-300% down to   30 Hz
Max. Dwell 20% volts/S   recovery
Unit power dissipation 18 watts maximum
Build up voltage 4 Volts @ AVR   terminals
Analogue Input Maximum input ± 5 V dc (see   note 6)
Sensitivity 1v for 5%   Generator Volts (adjustable)
Input Resistance 1k ohms
Quadrature Droop Input 10 Ohms burden
Max. sensitivity: 0.22 A for 5% droop 0PF
Max. Input: 0.33 A
Current Limit Input 10 Ohms burden
Sensitivity range: 0.5-1 A
Over Voltage Detector Input Set point: 300   V.    Time delay: 1 sec (fixed)
CB trip coil volts: 10-30 V dc
CB trip coil resistance: 20-60 ohms
Over Excitation Protection Set point 67 V dc +/-3%   (fixed)
Time delay 10-15 seconds   (fixed)
Environmental Vibration 20-100 Hz;   50mm/se
100Hz – 2kHz; 3.3g
Operating temperature -40 to +70°C
Relative Humidity 0-70°C 95% (see note 7)
Storage temperature -55 to +80°C

NOTES

1.De-rate by 20% if mounted external to generator.

2.Inclusive of 4% engine governing.

3.After 2 minutes warm-up.

4.Generator de-rate may apply. Check with factory.

5.Factory set, semi-sealed, jumper selectable.

6.De-rate output current by 5% per degree C above 60C.

7.Non condensing.

Part Photos

High-Quality Stamford MX321 AVR

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