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AVR MX321

AVR MX321

Mô tả chi tiết

 MX321  Brushless Alternator Regulator Regulator

 

Stamford AVR MX321 is a three phase, thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes protective features to ensure safe reliable control of the generator.This AVR is used only in cojunction with permenant magnetic type alternators.

Features include:

 

Output
voltage max 120V dc
Current Continuous 3.7 A dc. transient 6A for 10 secs.
resistance 15 ohms min
regulation +/- 0.5% RMS with 4% engine governing (see note 2)
Thermal drift 0.02% per deg. C change in AVR ambient
TYPICAL SYSTEM RESPONSE
AVR response 10 ms
Filed current to 90% 80 ms
Machine Volts to 97% 300 ms
Exteral voltage adjustment +/-10% with 5 k ohm 1 watt trimmer
Under frequency protection
Set point 95% Hz(see note 4)
Slope 100-300% down to 30 Hz
Max. Dwell 20% volts/S recovery
UNIT POWER DISSIPATION 18 watts maximum
ENVIRONMENTAL
Operating temperature -40 to +70°C
Storage temperature -55 to +80°C

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