Specification :

Stamford AVR MX321, Stamford Automatic Voltage Regulator, Stamford Voltage Regulator, Stamford Part, Stamford Spare Part, Automatic Voltage Regulator( AVR) , Generator AVR.

The MX321 has all the features of the MX341, additionally achieving voltage regulation in the order of 0.5 % . There is also the facility for 3-phase RMS sensing, built in overvoltage protection and optional short circuit current level adjustment.

The combination of PMG providing an isolated power source and the MX321' s RMS sensing makes an ideal arrangement for supplying the non-linear loads associated with UPS systems.

We supply the following STAMFORD, LEROY SOMER, MARTHON AVR:

1. STAMFORD AVR:
1) AS440
2) SX460
3) SX440
4) MX341
5) MX321

2. LEROY SOMER AVR
1) R230
2) R438
3) R448
4) R449

3. MARTHON AVR:
SE350

STAMFORD AVR MX321
1. Specification:
MX321 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator ( AVR) and forms part of the excitation system for a brushless alternator with PMG, such as Stamford or Stamford technical alternator.

2. Technical specification:
Input
Voltage 170~ 220VAC, 3 phase 3A( PMG)
Frequency 50~ 60Hz
Induction detect 170~ 250VAC, 2 phase or 3 phase
Output
Voltage Max 120VDC
Current Continuous 3.7ADC
Intermittent 6A for 10 seconds
Protection Low speed, over excitation, over-voltage, over-current, LAM
Regulation + / - 1.0%