The MX321 TM brand analogue, 3-phase sensing, permanent magnet generator (PMG) powered automatic voltage regulator (AVR) provides isolation from the effects of non-linear loads, improved motor starting performance and sustained short circuit current.

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2.4更先进的是mx321具调节“电压/频率”比例的功能，用以改善涡轮增压发动机的发动 机恢复时间，具有缓慢起动电路以使发电机电压平滑建立. 2.5短路限制功能可以控制持续的短路电流，最大的励磁能以内部关闭输出的方式，限定在

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 non-linear loads and to reduce radio frequency interference on the generator terminals.

Lexmark MX321adn 的列印速度高達 36 ppm，提供傳真、自動送稿器及複印功能，還搭載標準多核心處理器。

MX321是康明斯斯坦福发电机一款三相感应自动调压器，是康明斯Stamford无刷发电机励磁系统的组成部分。 励磁电源取自三相永磁发电机（PMG），可使AVR控制电路免受非线性负载的影响以及发电机端子的射频干扰，同时能够承受发电机的持续短路电流。

The MX321 allows 3 phase sensing, short circuit limiter, over voltage adjustment and DWELL (used when the alternator is coupled to a turbo charged engine with a limited block load acceptance). The regulator is highly used and standard on HC634, LV634 and P7 machines ranging from 700 kw to 2200 kw.

The MX321 is a three phase, thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brushless generator. Stamford MX 321 is very sensitive AVR model. Regulation is +/- 0,5% . This is very sharp for alternator voltages and regulation. Set point is 300 VDC , time delay is 1 second..

MX321TM is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator.