Isolate the avr control circuits from the effects of non linear loads and to reduce radio frequency interference on the generator terminals. Mx321 automatic voltage regulator avr specification controls and accessories.
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Mx321 avr wiring diagram. The surface in the area where a label is to be stuck must be flat. The droop adjustment is normally preset in the works to give 5 voltage droop at full load zero power factor. Control function turn potentiometer clockwise to. Mx321 avr controls 6 a043y701 issue 2 32 initial avr setup notice the avr must be setup only by authorised trained service engineers. Mx automatic voltage regulator avr mx technical specification. 34 products automatic voltage regulator circuit diagram avr mx us piece.
Refer to wiring diagram before removing the shorting link and connecting the droop transformer. Is connected to s1 s2 on the avr see generator wiring diagram for details. Stamford mx341 automatic voltage regulator. A043y699 issue 2 5 ref. Clockwise increases the amount of ct. The avr senses the voltage in the main generator winding and controls the excitation to maintain the generator output.
Mx is a two phase sensed automatic voltage the avr has the facility for droop ct connection to allow. Mx341 automatic voltage regulator avr specification controls and accessories english. Stamford as480 automatic voltage regulator. 18122018 18122018 3 comments on mx321 voltage regulator wiring diagram. Stamford mx321 automatic voltage regulator. Stamford as540 automatic voltage regulator.
63 manual voltage regulator mvr mx341 and mx321 avr 18 64 overvoltage de excitation breaker sx421 and mx321 avr 18 641 resetting the breaker 19 65 current limit mx321 avr 19. Sustained generator short circuit current is another feature of the pmg system. Refer to alternator wiring diagram for connection details. Wiring diagram for connection details mx avr outline drawing figure 1. A043y701 issue 2 5 ref. Refer to generator wiring.
Refer to alternator wiring diagram for connection details. Fitting and operating refer to generator wiring diagram for connection details. Sensing input refer to alternator wiring diagram for connection details. Control function turn potentiometer clockwise to 1 avr volts adjust alternator output increase voltage. Mx321 automatic voltage regulator avr for cummins 1250kva generators. Obscured by the customers wiring or other fittings.
The droop transformer must be connected in the correct main output terminal for proper operation details are as shown in the machine wiring diagram. Signal injected into the avr and increases the droop with lagging power factor cos 0. Mx automatic voltage regulator avr.