Newage Stamford MX341

MX341 is a two phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator.', '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.

Please read the specification sheet for further details

SENSING INPUT	Voltage 190-264V ac max, 1 phase, 2 wire
	Frequency 50-60 Hz nominal

POWER INPUT (PMG)	Voltage 140-220V ac max, 3 phase, 3 wire
	Current 3A/phase
	Frequency 100-120 Hz nominal

OUTPUT	Voltage max 120V dc
	Current continuous 2.7 A
	Intermittent 6A for 10 secs.
	Resistance 15 ohms minimum

REGULATION	+/- 1% (see note 1)

THERMAL DRIFT	0.03% per oC change in AVR ambient (note 2)

SOFT START RAMP TIME	3 seconds

TYPICAL SYSTEM RESPONSE	AVR Response 10 ms
	Filed current to 90% 80 ms
	Machine Volts to 97% 300 ms

EXTERNAL VOLTAGE ADJUSTMENT	+/-10% with 1 k ohm 1 watt trimmer (see note 3)

UNDER FREQUENCY PROTECTION	Set point 95% Hz (see note 4)
	Slope 170% down to 30 Hz

UNIT POWER DISSIPATION	12 watts maximum

ANALOGUE INPUT	Maximum input +/- 5V dc (see note 5)
	Sensitivity 1v for 5% Generator Volts (adjustable)
	Input resistance 1k ohm

QUADRATURE DROOP INPUT	10 ohms burden
	Max. sensitivity: 0.07 A for 5% droop 0PF
	Max. input: 0.33 A

OVER EXCITATION PROTECTION	Set point 75 V dc
	Time delay 10 seconds (fixed)

ENVIRONMENTAL	Vibration 20-100 Hz 50mm/sec
	100Hz – 2kHz 3.3g
	Operating temperature -40 to +70oC
	Relative Humidity 0-70oC 95% (see note 6)
	Storage temperature -55 to +80oC

NOTES	1. With 4% engine governing.
	2. After 10 minutes.
	3. Applies to Mod status D onwards. Generator de-rate may apply. Check with factory.
	4. Factory set, semi-sealed, jumper selectable.
	5. Any device connected to the analogue input must be fully floating (galvanically isolated from ground), with an insulation strength of 500V ac.
	6. Non condensing.

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