Original Stamford MX341 AVR Circuit Diagram AC Diesel Generator Control Panel

Overview:
MX341 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 AVR 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 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.

Product Specifications
Brand: Stamford
Model: MX341
Core Function: PMG‑excited two‑phase‑sensing automatic voltage regulator AVR, soft‑start, under‑frequency roll‑off, over‑excitation trip, parallel droop control, analog input interface
Sensing Input:190‑264VAC 1‑phase 2‑wire,50/60Hz
PMG Power Input:140‑220VAC 3‑phase 3‑wire
Field Output:Max 120VDC, Continuous 2.7A, Transient 6A‑10s
Dimension:140×155×39mm; Mounting hole:115×130mm
Nett Weight: approx 0.5 KG / pc
Operating Temperature:‑40℃ ~ +70℃
Warranty:12‑month Factory warranty