The droop transformer must be connected in the correct main output terminal for proper operation details are as shown in the machine wiring diagram. Is available as an option using either the mx or mx avr.
Mx321 Voltage Regulator Wiring Diagram Mx321 Automatic
Mx321 2 avr wiring diagram. Refer to diagram in the back of this manual to determine wiring. All stamford generators are supplied with a declaration of incorporation for the. The droop adjustment is normally preset in the works to give 5 voltage droop at full load zero power factor. A043y701 issue 2 5 ref. Mx321 avr controls 6 a043y701 issue 2 32 initial avr setup notice the avr must be setup only by authorised trained service engineers. Clockwise increases the amount of ct.
Mx automatic voltage regulator avr. Fitting and operating refer to generator wiring diagram for connection details. Refer to alternator wiring diagram for connection details. Vac to vac maximum 3 phase 3 wire refer to alternator wiring diagram for connection details. Mx321 is a three phase sensed automatic voltage regulator and forms part of the excitation system for a brush less generator. Is connected to s1 s2 on the avr see generator wiring diagram for details.
Refer to wiring diagram before removing the shorting link and connecting the droop transformer. 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. Signal injected into the avr and increases the droop with lagging power factor cos 0. Mx321 automatic voltage regulator avr specification controls and accessories. Control function turn potentiometer. Mx321 automatic voltage regulator avr for cummins 1250kva generators.
Control function turn potentiometer clockwise to. Ay issue 2 5 ref. Mx automatic voltage regulator avr specification controls and accessories voltage.