Automatic Voltage Regulator (AVR)

Factory Price Stamford Automatic Voltage Regulator AVR MX341-A

Model: AVR MX341-A
Origin: China
In stock: yes
warranty: 1 year
Product description: AVR MX341-A 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 genera
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Factory Price Stamford Automatic Voltage Regulator AVR MX341-A

General description

Generator AVR 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.

Technical specification (Detailed Specification download Click here)

Model	Generator Automatic Voltage Regulator AVR MX341-A
SENSING INPUT	Voltage	190-264V ac max, 1 phase, 2 wire
SENSING INPUT	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 2.7A,Intermittent 6A for 10 secs
	Resistance	15 ohms minimum
REGULATION	+/- 1% (see note 1)
THERMAL DRIFT	0.03% per℃ change in AVR ambient (note 2)
SOFT START RAMP TIME	3 seconds
TYPICAL SYSTEM RESPONSE	AVR Response	10ms
	Filed current to 90%	80ms
	Machine Volts to 97%	300ms
EXTERNAL VOLTAGE ADJUSTMENT	+/-10% with 1 k ohm 1 watt trimmer (see note 3)
UNDER FREQUENCY PROTECTION	Set point	95% Hz (see note 4)
UNDER FREQUENCY PROTECTION	95% Hz (see note 4)	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	75V dc
OVER EXCITATION PROTECTION	Time delay	10 seconds (fixed)
ENVIRONMENTAL	Vibration	20-100 Hz 50mm/sec
	Vibration	100Hz–2kHz 3.3g
	Operating temperature	-40 to +70℃
	Relative Humidity	0-70℃ 95% (see note 6)
	Storage temperature	-55 to +80℃